BQ24140_14 datasheet(9/39 Pages) TI1

Part #	BQ24140

Description	Integrated Dual-Input Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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9 / 39 page

Charge

Pump

Charge

Pump

PWM Controller

CBC Current

Limit

CBC Current

Limit

OSC

VREF

+

-

+

-

VBUS_DPM

Charge Control,

Timer and Display

Logic

+

-

IBUS_LIM

+

-

VIN_DPM

+

-

IIN_LIM

+

-

+

-

+

-

TREG

TJ

VOREG

ICHG

CSIN

VBAT

+

-

+

-

+

-

+

-

+

-

+

-

+

-

VBUS

VBUS UVLO

VIN

VIN UVLO

VBUS

VBUS OVP

VIN

VIN OVP

TJ

TSHTDWN

VBAT

VBAT OVP

VBAT

VOREG - VRCH

+

-

VBUS

VBAT

VIN

VBAT

SW2

SW1

VBUS

PMID1

VIN

PMID2

GND

I2C Control

SDA

SCL

SLRST

OTG

DIS

STAT

+

-

VCSIN

VBAT

ITERM

Recharge

Termination

Sleep VIN

Sleep VBUS

BAT OVP

TSHUT

VIN OVP

VBUS OVP

VIN UVLO

VBUS UVLO

+

-

VBUS

VBUS MIN

PWM Charge

VBUS Poor

Source

+

-

VIN

VIN MIN

VIN Poor

Source

+

-

VBAT

VSHORT

Ref & Bias

VREF

BOOT1

BOOT

PMID1

PMID2

VBAT

VREF

ISHORT

Linear Chg

PWM Charge

LED

PMID2

2.5V, 10mA (back

to back switches)

VREG

Q2

Q3

Q4

Q5

Q6

Q1

bq24140

www.ti.com

SLUSAO5

– OCTOBER 2011

VIN=5V or VBUS=5V, ICHARGE = 1550mA, VBAT = 3.5--4.44V (Adjustable), Safety Timer = 15 minutes or 32 seconds

BLOCK DIAGRAM

Figure 2. bq24140 Block Diagram

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BQ24140 Datasheet(PDF) 9 Page - Texas Instruments

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