Texas Instruments Bq24750A Manuale utente

User's Guide

SLUU283D–May 2007–Revised March 2010

bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi

Cell Synchronous Notebook Charger and System Power

Selector

Contents

1 Introduction .................................................................................................................. 1

2 Test Summary ............................................................................................................... 4

3 PCB Layout Guideline ...................................................................................................... 8

4 Bill of Materials, Board Layout and Schematics ........................................................................ 9

List of Figures

1 Original Test Setup for HPA207-001, -004, or -005 ................................................................... 5

2 Original Test Setup for HPA207-002, -003, -006, or -007 ............................................................ 6

3 Test Setup for HPA207-001, -004, or -005 ............................................................................. 7

4 Test Setup for HPA207-002, -003, -006, or -007 ...................................................................... 7

5 Top Layer................................................................................................................... 12

6 2nd Layer .................................................................................................................... 13

7 3rd Layer..................................................................................................................... 14

8 Bottom Layer............................................................................................................... 15

9 Top Assembly.............................................................................................................. 16

10 Bottom Assembly.......................................................................................................... 17

11 Top Silk ..................................................................................................................... 18

List of Tables

1 Bill of Materials ............................................................................................................. 9

1 Introduction

1.1 EVM Features

• Evaluation Module For the bq24750/50A/51/51A/51B/52/53

• High Efficiency NMOS-NMOS Synchronous Buck Charger With 300 kHz Frequency

• Battery/Adapter to System Power Selector Function

• User-Selectable 2-cell, 3-cell or 4-cell Li-ion Battery Voltage

• User-Programmable Battery Regulation Voltage with External Voltage Source (4.2/cell by Default)

• User-Programmable Charge Current with External Voltage Source (3 A by Default)

• User-Programmable Input Current Limit with External Voltage Source (4.5 A by Default)

• Pin Programmable Interface for Control and Status Communications with Host

• AC Adapter Operating Range 18 V to 22 V

• Adapter Overcurrent Protection

• ACFET Overpower Protection

• LED Indication for Control and Status Signals.

SLUU283D–May 2007–Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous

Notebook Charger and System Power Selector

Introduction

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• Test Points for Key Signals Available for Testing Purpose. Easy Probe Hook-up

• Jumpers Available, Easy to Change Connections

1.2 General Description

The bq24750/50A/51/51A/51B/52/53 evaluation module is a complete charger module for evaluating a

multi cell synchronous notebook charge and path selection solution using the

bq24750/50A/51/51A/51B/52/53 devices. It is designed to deliver up to 6A of charge current to Li-Ion or

Li-Pol applications. The charge current is programmable by external voltage input.

The bq24750/50A/51/51A/51B/52/53 has a highly integrated battery charge controller designed to work

with external host commands. The battery voltage, charge current, input current limit and other system

parameters are pin-programmable.

The dynamic power management (DPM) function modifies the charge current depending on system load

conditions, avoiding ac adapter overload.

High accuracy current sense amplifiers enable accurate measurement of the ac adapter current, allowing

monitoring of overall system power.

For details, see the bq24750 data sheet (SLUS735) , the bq24750A data sheet (SLUS834), the bq24751

data sheet (SLUS734), the bq24751A data sheet (SLUS756), the bq24751B data sheet (SLUS835) and

the bq24753 data sheet (SLUS885).

1.3 I/O Description

Jack Description

J1–ACPWR AC adapter, positive output

J1–PGND AC adapter, negative output

J2–VADJ VADJ pin (12)

J2–ACSET ACSET pin (6)

J2–SRSET SRSET pin (16)

J3–CHGEN CHGEN pin (1)

J3–CELLS CELLS pin (20)

J4–VEXT External power supply, positive output

J4–GND External power supply, negative output

J5–VREF IC reference voltage VREF

J5–VDAC VDAC pin (11)

J5–VDACEXT External VDAC voltage

J5–GND Ground

J6–TS TS pin (8) output for bq24750/50A/52, OVPSET pin (8) output for bq24751/51A/51B/53

J6–PGND Ground

J6–BAT Connected to battery pack

J6–SYS Connected to system

J7–ACGOOD ACGOOD pin (13)

J7–IOUTF R21 terminal connected to C23

J7–VREF IC reference voltage VREF

J7–DPMDET pin number 21, DPMDET for bq24750/50A/52, LEARN for bq24751/51A/51B/53

JP1–1 bq24751/51A/51B/53 OVPSET resistor divider for bq24751/51A/51B/53

JP1–2 Pin 8

JP1–3 bq24750/50A/52 TS resistor divider for bq24750/50A/52

JP2–1 Pin 21, LEARN for bq24751/51A/51B/53

LEARN DISA

JP2–2 Ground

JP3–1 ACDRV pin (4) output

ACDRV

JP3–2 LED drive

2bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D–May 2007–Revised March 2010

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Introduction

Jack Description

JP4–1 Pull-up voltage source

LEDPWR

JP4–2 LED Pull-up power line

JP5–VEXT External power supply

JP5–HI Pull-up voltage source

JP5–VREF IC reference voltage VREF

JP6–1 REGN pin (24)

4.2V REG

JP6–2 VADJ pin (12)

JP7–VREF IC reference voltage VREF

JP7–VDAC VDAC pin (11)

JP7–EXT External VDAC voltage

JP8–1 BATDRV pin (14) output

BATDRV

JP8–2 LED drive

JP9–1 Pull-up voltage source

CHGDISA

JP9–2 CHGEN pin (1)

JP10–HI Pull-up voltage source

JP10–CELLS CELLS pin (20) output

JP10–LO Ground

1.4 Control and Key Parameters Setting

Factory Setting

–001, –004, –002, –003,

Jack Description or –005 –006, or –007

(bq24750/50A/52) (bq24751/51A/51B/53)

Pin 8 connection

JP1 1-2 (751) : OVPSET Jumper on 2-3 Jumper on 1-2

2-3 (750) : TS

JP2 Disable LEARN mode when on Jumper Off Jumper On

JP3 JP3 The conduction of the AC MOSFET is indicated by LED when on Jumper On Jumper On

The pull-up power source supplies the LEDs when on. LED has no

JP4 Jumper On Jumper On

power source when off.

Pull-up power source setting Jumper on 1-2 Jumper on 1-2

JP5 1-2: Use VREF as the pull-up source (HI and VREF) (HI and VREF)

2-3: Use external power supply as the pull-up source

JP6 Connect REGN to VADJ when on Jumper On Jumper On

VDAC voltage source setting Jumper on 1-2 Jumper on 1-2

JP7 1-2 : Connect VREF to VDAC (VREF and VDAC) (VREF and VDAC)

2-3 : Connect external voltage source to VDAC

JP8 The conduction of the battery MOSFET is indicated by LED when on Jumper On Jumper On

JP9 Disable charge process when on Jumper On Jumper On

Number of cells selection

1-2 (HI-CELLS) : 4 cells

JP10 Jumper on 2-3 (3 cells) Jumper on 2-3 (3 cells)

2-3 (CELLS-LO) : 3 cells

Open: 2 cells

SLUU283D–May 2007–Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous

Notebook Charger and System Power Selector

Test Summary

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1.5 Recommended Operating Conditions

SYMBOL DESCRIPTION MIN TYP MAX UNIT

VIN Supply voltage Input voltage from ac adapter input 18 19 22 V

VBAT Battery voltage Voltage applied at VBAT terminal of J8 6 7–16.8 20 V

IAC Supply current Maximum input current from ac adapter 0 4.5 A

Ichrg Charge current Battery charge current 2 3 or 4 6 A

TJOperating junction temperature range 0 125 °C

2 Test Summary

2.1 Definitions

This procedure details how to configure the HPA207 evaluation board. On the test procedure the following

naming conventions are followed. See the HPA207 schematic for details.

VXXX : External voltage supply name (VADP, VBT, VSBT)

LOADW: External load name (LOADR, LOADI)

V(TPyyy): Voltage at HPA207 internal test point TPyyy. For example, V(TP12) means the voltage

at TP12.

V(Jxx): Voltage at HPA207 jack terminal Jxx.

V(TP(XXX)): Voltage at test point XXX. For example, V(ACDET) means the voltage at the test point

which is marked as ACDET.

V(XXX, YYY): Voltage across point XXX and YYY.

I(JXX(YYY)): Current going out from the YYY terminal of jack XX.

Jxx(BBB): Terminal or pin BBB of jack xx

Jxx ON : HPA207 internal jumper Jxx terminals are shorted

Jxx OFF: HPA207 internal jumper Jxx terminals are open

Jxx (-YY-) ON: HPA207 internal jumper Jxx adjacent terminals marked as YY are shorted

Measure:→A,B Check specified parameters A, B. If measured values are not within specified limits the

unit under test has failed.

Observe →A,B Observe if A, B occur. If they do not occur, the unit under test has failed.

Assembly drawings have location for jumpers, test points and individual components.

2.2 Equipment

2.2.1 POWER SUPPLIES

Power Supply 1 (PS1): a power supply capable of supplying 20V at 5A is required.

Power Supply 2 (PS2): a power supply capable of supplying 5V at 1A is required. (for HPA207-001, -004,

or -005 only)

2.2.2 LOAD 1

A 30V (or above), 5A (or above) electronic load that can operate at constant current mode

2.2.3 LOAD 2

A Kepco bipolar operational power supply/amplifier, 0 ± 20V (or above), 0 ± 6A (or above).

Or: A 20-V at 6-A (or above) dc power supply in parallel with a 3Ω, 100W+ power resistor which is

thermally capable or well cooled for at least 100W power dissipation.

4bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D–May 2007–Revised March 2010

Notebook Charger and System Power Selector Submit Documentation Feedback

BQ24750 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

Iin

Power

supply #1

Power

supply #2

BQ24750 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

BQ24750 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

Iin

Power

supply #1 V

Iin

Power

supply #1

Power

supply #2

Power

supply #2

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Test Summary

2.2.4 METERS

Seven Fluke 75 multimeters, (equivalent or better)

Or: Four equivalent voltage meters and three equivalent current meters.

The current meters must be capable of measuring 5A+ current.

2.2.5 OSCILLOSCOPES

An oscilloscope, a single voltage probe and a single current probe are required.

2.3 Equipment Setup

(A) Set the power supply 1 for 0V ± 100mVDC, 5.0 ± 0.1A current limit and then turn off supply.

(B) Connect the output of power supply 1 in series with a current meter (multimeter) to J1 (POS, GND).

(D) Set the power supply 2 for 1.6V ± 100mVDC, 1.0 ± 0.1A current limit and then disable the output.

(E) (For HPA207-001, -004 or -005 only) Connect the output of power supply 2 to J6 (TS, GND).

(F) Turn off Load 1.

(G) Set the voltage of Load 2 to 2V ± 1V. Turn off Load 2.

(H) Connect a voltage meter across J6 (BAT, GND).

(I) Connect a voltage meter across J6 (SYS, GND).

(J) JP3: ON, JP8: ON, JP9: ON, JP6: ON, JP4: ON, JP10 (LO, CELLS): ON, JP5 (HI, VREF): ON, JP7

(VREF, VDAC): ON.

(K) (For HPA207-001, -004 or -005 only) JP1(-750-): ON, JP2: OFF

(L) (For HPA207-002, -003, -006, or -007 only) JP1 (-751-): ON, JP2: ON

After the steps above, the test setup for HPA207-001, -004, or -005 (bq24750/50A/52 EVM) is shown in

Figure 1. The test setup for HPA207-002, -003, -006, or -007 (bq24751/51A/51B/53 EVM) is shown in

Figure 2.

Figure 1. Original Test Setup for HPA207-001, -004, or -005

SLUU283D–May 2007–Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous

Notebook Charger and System Power Selector

BQ24751 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

Iin

Power

supply #1

BQ24751 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

BQ24751 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

Iin

Power

supply #1 V

Iin

Power

supply #1

Test Summary

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Figure 2. Original Test Setup for HPA207-002, -003, -006, or -007

2.4 Procedure

2.4.1 AC ADAPTER DETECTION THRESHOLD

1. Make sure EQUIPMENT SETUP steps are followed.

2. (For HPA207-001, -004, or -005 only) Turn on PS2.

3. Turn on PS1.

Measure →V(J6(VSYS)) = 0 ± 500mV

Measure →V(TP(VREF)) = 0V ± 500mV

Measure →V(TP(REGN)) = 0V ± 500mV

4. Increase the output voltage of PS1 until D7 (ACGOOD) on but do not exceed 19V.

Measure →V(TP(ACDET)) = 2.4V ± 150mV

Measure →V(J1(POS)) = 17.8V ± 1V

Measure →V(J6(SYS)) = 17.8V ± 1V

Measure →V(TP(VREF)) = 3.3V ± 200mV

Measure →V(TP(REGN)) = 6V ± 500V (For HPA207-001, -002, or -004)

Measure →V(TP(REGN)) = 0.7V ± 700mV (For HPA207-003, -005, -006, -007 only)

Measure →D4 (ACDRV) on. (Note: ignore D5 if testing HPA207-002, -003, -006, or -007)

2.4.2 SELECTION OF REGULATION VOLTAGE

1. Increase the voltage of PS1 until V(J5(POS)) = 19V± 0.1V.

Measure →V(J6(BAT, GND)) = 0V ± 1V

Uninstall JP9 (enable the charging)

Observe →D3 (CHG EN) on

Measure →V(J6(BAT)) = 12.6V ± 200mV

2. Install JP10 (CELLS, HI)

Measure →V(J6(BAT)) = 16.8V ± 200mV

3. Install JP10 (CELLS, LO)

Measure →V(J6(BAT)) = 12.6V ± 200mV

6bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D–May 2007–Revised March 2010

Notebook Charger and System Power Selector Submit Documentation Feedback

BQ24751 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

Iin

Power

supply #1

Ibat

Isys

ILoad

Load

BQ24751 EVM

ACPWR

PGND

SYS

GND

BAT

VREF

JP3

DPMDET

ACGOOD

APPLICATION CIRCUIT

BAT

SYS

VIN

IADPTF

JP9

JP1

JP2

JP8

JP6 JP4

JP10 JP5 JP7

Iin

Power

supply #1 V

Iin

Power

supply #1

Ibat

Isys

ILoad

Load

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Test Summary

2.4.3 CHARGE CURRENT AND AC CURRENT REGULATION (DPM)

1. Install JP9 (Disable the charging).

2. Connect the Load 2 in series with a current meter (multimeter) to J6 (BAT, GND). Make sure a voltage

meter is connected across J6 (BAT, GND). Turn on the Load 2. Set the output voltage to 10.5V.

3. Connect the output of the Load 1 in series with a current meter (multimeter) to J6 (SYS, GND). Make

sure a voltage meter is connected across J6 (SYS, GND). Turn on the power of the Load 1. Set the

load current to 4A ± 50mA but disable the output. The setup is now like Figure 3 for HPA207-001, -004

or -005 and like Figure 4 for HPA207-002, -003, -006, or -007. Make sure Ibat = 0A ± 10mA and Isys =

0A ± 10mA.

Figure 3. Test Setup for HPA207-001, -004, or -005

Figure 4. Test Setup for HPA207-002, -003, -006, or -007

4. Uninstall JP9 (Enable the charging).

Observe →D3 (CHG EN) on

5. Measure →Ibat = 3000mA ± 200mA

Measure →V(TP(IOUT)):= 300mV ± 100mV (For HPA207-001, 002, -003, -005, -006, or -007)

Measure →V(TP(IOUT)):= 600mV ± 100mV (For HPA207-004 only)

6. Enable the output of the Load 1.

Observe →D5 (DPMDET) on (For HPA207-001, -004, or -005 only)

Measure →Isys = 4000mA ± 200mA, Ibat = 1000mA ± 500mA, Iin = 4500mA ± 400mA

7. Turn off the Load 1.

Measure →Isys = 0 ± 100mA, Ibat = 3000mA ± 200mA

SLUU283D–May 2007–Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous

Notebook Charger and System Power Selector

PCB Layout Guideline

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2.4.4 CHARGER CUT-OFF BY THERMISTOR (HPA207-001, -004, or -005 ONLY)

1. Slowly increase the output voltage of PS2 until Ibat = 0 ± 10mA.

Measure →V(J6(TS)) = 2.44V ± 400mV

2. Slowly decrease the output voltage of PS2.

Charge will resume. Continue to decrease the output voltage of PS2 slowly until Ibat = 0 ± 10mA.

Measure →V(J6(TS)) = 0.97V ± 400mV

3. Slowly increase the output voltage of PS2 to 1.6V ± 100mV.

Measure →Ibat = 3000mA ± 200mA

2.4.5 LEARN MODE (HPA207-002, -003, -006, or -007 ONLY)

1. Measure →V(J6(SYS)) = 19V ± 1V (adapter connected to system)

2. Uninstall JP2 (Enable the learn mode).

Measure →V(J6(SYS)) = 10.5V ± 1V (battery connected to system)

3. Install JP2 (Disable the learn mode).

Measure →V(J6(SYS)) = 19V ± 1V (adapter connected to system)

2.4.6 POWER PATH SELECTION

1. Install JP9 (Disable the charging).

Measure →V(J6(SYS)) = 19V ± 1V (adapter connected to system)

Observe →D4 (ACDRV) on, D6 (BATDRV) off.

2. Turn off PS1.

Measure →V(J6(SYS)) = 10.5V ± 1V (battery connected to system)

3 PCB Layout Guideline

1. It is critical that the exposed power pad on the backside of the bq2475x package be soldered to the

PCB ground. Make sure there are sufficient thermal vias right underneath the IC, connecting to the

ground plane on the other layers.

2. The control stage and the power stage should be routed separately. At each layer, the signal ground

and the power ground are connected only at the power pad.

3. AC current sense resistor must be connected to ACP (pin 3) and ACN (pin 2) with a Kelvin contact.

The area of this loop must be minimized. The decoupling capacitors for these pins should be placed as

close to the IC as possible.

4. Charge current sense resistor must be connected to SRP (pin 19), SRN (pin 18) with a Kelvin contact.

The area of this loop must be minimized. The decoupling capacitors for these pins should be placed as

close to the IC as possible.

5. Decoupling capacitors for PVCC (pin 28), VREF (pin 10), REGN (pin 24) should be placed underneath

the IC (on the bottom layer) and make the interconnections to the IC as short as possible.

6. Decoupling capacitors for BAT (pin 17), IADAPT or IBAT (pin 15) must be placed close to the

corresponding IC pins and make the interconnections to the IC as short as possible.

7. Decoupling capacitor(s) for the charger input must be placed close to Q3 drain and Q4 source.

8bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D–May 2007–Revised March 2010

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Bill of Materials, Board Layout and Schematics

4 Bill of Materials, Board Layout and Schematics

Table 1. Bill of Materials

'50 '51 '51A '52 '50A '51B '53 Part

RefDes Value Description Size MFR

-001 -002 -003 -004 -005 -006 -007 Number

0 0 0 0 0 0 0 C1 Open Capacitor, 0.207 X UUD1E220 Nichicon

Electrolytic, 22uF, 0.209 inch MCR1GS

25 VDC

0 0 0 0 0 0 0 C10, C21, Open Capacitor, 603 C1608X7R1 TDK

C25,C29, Ceramic, 50V, H104K

C32 X7R, 10%

1 1 1 1 1 1 1 C11 0.47uF Capacitor, 805 GRM21BR7 muRata

Ceramic, 50V, 1H474KA88

X7R, 10% L

4 4 4 4 4 4 4 C12, C13, 10uF Capacitor, 1210 Std Taiyo Yuden

C23, C26 Ceramic, 25V,

X5R, 10%

0 0 0 0 0 0 0 C14 Open Capacitor, 805

Ceramic, vvV

1 1 1 1 1 1 1 C15 4.7uF Capacitor, 1206 C3216X7R1 TDK

Ceramic, 25V, E475M

X7R, 20%

1 1 1 1 1 1 1 C16 100pF Capacitor, 603 C1608C0G1 TDK

Ceramic, 50V, H101J

C0G, 5%

0 0 0 0 0 0 0 C2 Open Capacitor, 1210 Std Taiyo Yuden

Ceramic, 25V,

X5R, 10%

0 0 0 0 0 0 0 C22, C33 Open Capacitor, 1206 GRM31CR6 muRata

Ceramic, 25V, 1E106KA12

X5R, 10% L

2 2 2 2 2 2 2 C24, C30 10uF Capacitor, 1206 GRM31CR6 muRata

Ceramic, 25V, 1E106KA12

X5R, 10% L

0 0 0 0 0 0 0 C3 Open Capacitor, 1206 C3216X7R1 Taiyo Yuden

Ceramic, 35V, H105K

X7R, 10%

2 2 2 2 2 2 2 C4, C31 0.01uF Capacitor, 603 C1608X7R1 TDK

Ceramic, 50V, H104K

X7R, 10%

1 1 1 1 1 1 1 C5 22 uF Capacitor, 0.207 X UUD1E220 Nichicon

Electrolytic, 22uF, 0.209 inch MCR1GS

25 VDC

0 0 0 0 0 0 0 C6 Open Capacitor, 1210 Std Vishay

Ceramic, vvV,

[temp], [tol]

7 7 7 7 7 7 7 C7, C9, 0.1uF Capacitor, 603 C1608X7R1 TDK

C18, Ceramic, 50V, H104K

C20,C27, X7R, 10%

C28, C34

3 3 3 3 3 3 3 C8, C17, 1.0uF Capacitor, 1206 C3216X7R1 TDK

C19 Ceramic, 50V, H105K

X7R, 10%

1 1 1 1 1 1 1 D1 BAT54 Diode, Schottky, SOT23 BAT54 Vishay-

200mA, 30V Liteon

1 1 1 1 1 1 1 D2 MBRS1 Diode, Schottky, SMB MBRS130T IR

30 1A, 30V R

4 4 4 4 4 4 4 D3, D4, D6, Green Diode, LED, Green, 603 LTST- Lite On

D7 2.1V, 20mA, 6mcd C190GKT

1 1 1 1 1 1 1 D5 Red Diode, LED, Red, 603 LTST- Lite On

1.8V, 20mA, C190CKT

20mcd

1 1 1 1 1 1 1 J1 ED160 Terminal Block, 2 0.40 x 0.35 ED1609 OST

9-ND pin, 15A, 5.1mm inch

1 1 1 1 1 1 1 J2 ED151 Terminal Block, 3 0.41 x 0.25 ED1515 OST

5 pin, 6A, 3.5mm inch

SLUU283D–May 2007–Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous

Notebook Charger and System Power Selector

Bill of Materials, Board Layout and Schematics

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Table 1. Bill of Materials (continued)

'50 '51 '51A '52 '50A '51B '53 Part

RefDes Value Description Size MFR

-001 -002 -003 -004 -005 -006 -007 Number

2 2 2 2 2 2 2 J3, J4 ED151 Terminal Block, 2 0.27 x 0.25 ED1514 OST

4 pin, 6A, 3.5mm inch

1 1 1 1 1 1 1 J6 ED222 Terminal Block, 4 0.80 x 0.35 ED2227 OST

7 pin, 15A, 5.1mm inch

2 2 2 2 2 2 2 J5, J7 ED151 Terminal Block, 4 0.55 x 0.25 ED1516 OST

6 pin, 6A, 3.5mm inch

4 4 4 4 4 4 4 JP1, JP5, PTC36 Header, 3 pin, 0.100 inch x PTC36SAA Sullins

JP7, JP10 SAAN 100mil spacing, 3 N

(36-pin strip)

6 6 6 6 6 6 6 JP2, JP3, PTC36 Header, 2 pin, 0.100 inch x PTC36SAA Sullins

JP4, JP6, SAAN 100mil spacing, 2 N

JP8, JP9 (36-pin strip)

1 1 1 1 1 1 1 L1 8.2uH Inductor, SMT, 0.51 x 0.51 IHLP5050C Vishay

16A, 24.8milliohm inch E8R2M01

3 3 3 3 3 3 3 Q1, Q2, Q5 Si4435 MOSFET, P-ch, SO8 Si4435DY Siliconix

DY 30V, 8.0A,

20milliohm

2 2 2 2 2 2 2 Q3, Q4 FDS66 Transistor, SO8 FDS6680A Fairchild

80A MOSFET, NChan,

30V, 12.5A, Rds

9.5 milliohm

8 8 8 8 8 8 8 Q6, Q8, Q9, 2N7002 MOSFET, N-ch, SOT23 2N7002DIC Vishay-

Q10, Q11, DICT 60V, 115mA, T Liteon

Q13, Q14, 1.2Ohms

Q15

2 2 2 2 2 2 2 Q7, Q12 TP0610 MOSFET, P-Ch, SOT-23 TP0610K Vishay-

K 60V, Rds 6 ohms, Siliconix

Id 185 mA

1 1 1 1 1 1 1 R1 422k Resistor, Chip, 603 Std Std

1/10W, 1%

2 2 2 2 2 2 2 R10, R11 0 Resistor, Chip, 402 Std Std

1/16W, 5%

3 3 3 3 3 3 3 R12, R14, 100k Resistor, Chip, 805 ERA- Panasonic

R18 1/10W, 0.1% 6YEB104V

1 1 1 1 1 1 1 R13 82k Resistor, Chip, 805 ERA- Panasonic

1/10W, 0.1% 6YEB823V

1 1 1 1 1 1 1 R15 43k Resistor, Chip, 805 ERA- Panasonic

1/10W, 0.1% 6YEB433V

1 1 1 1 1 1 1 R19 68k Resistor, Chip, 805 ERA- Panasonic

1/10W, 0.1% 6YEB683V

1 1 1 1 1 1 1 R2 71.5k Resistor, Chip, 603 Std Std

1/10W, 1%

3 3 3 3 3 3 3 R21, R26, 20.0k Resistor, Chip, 603 Std Std

R33 1/16W, 1%

5 5 5 5 5 5 5 R24, R25, 2.21k Resistor, Chip, 603 Std Std

R27, R30, 1/16W, 1%

R34

1 1 1 1 1 1 1 R3 390k Resistor, Chip, 603 Std Std

1/16W, 1%

1 1 1 1 1 1 1 R31 10.0k Resistor, Chip, 603 Std Std

1/16W, 1%

1 1 1 1 1 1 1 R4 60.4k Resistor, Chip, 603 Std Std

1/16W, 1%

1 1 1 1 1 1 1 R5 5.62k Resistor, Chip, 402 Std Std

1/16W, 1%

1 1 1 1 1 1 1 R6 118k Resistor, Chip, 402 Std Std

1/16W, 1%

6 6 6 6 6 6 6 R7, R20, 100k Resistor, Chip, 603 Std Std

R22, R23, 1/16W, 1%

R28, R29

3 3 3 3 3 3 3 R8, R16, 10.0k Resistor, Chip, 402 Std Std

R32 1/16W, 1%

10 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D–May 2007–Revised March 2010

Notebook Charger and System Power Selector Submit Documentation Feedback

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