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BQ21062 Scheda tecnica(PDF) 15 Page - Texas Instruments

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Il numero della parte BQ21062
Spiegazioni elettronici  BQ21062 I2C Controlled 1-Cell 500-mA Linear Battery Charger with Power Path, Load Switch, 10-nA Ship Mode, and Regulated System (PMID) Voltage
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

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9 Detailed Description
9.1 Overview
The IC is a highly programmable battery management device that integrates a 500-mA linear charger for single
cell Li-Ion batteries, a general purpose LDO that may be configured as a load switch, and a push-button
controller. Through it's I2C interface the host may change charging parameters such as battery regulation voltage
and charge current, and obtain detailed device status and fault information. The push-button controller allows the
user to reset the system without any intervention from the host and wake up the device from Ship Mode.
9.2 Functional Block Diagram
LDO, and BAT FET Control
Device Control
VIN
Charge
Enable
I2C
Interface
Low Power Mode
Control
Charge Control
LDO / Load Switch
Control
Thermal
Shutdown
IBATREG
LDO
Control
UVLO
VBATREG
VIN_DPM
BAT
VIN
+
±
/Power Good
GP Output
Interrupt
JEITA/Temp
Information
For Charge Control
S
G
D
S
G
D
Q7
Q8
IN
GND
VIO
/CE
SCL
SDA
/LP
/MR
/INT
/PG
PMID
VDD
VINLS
LDO
BAT
TS
VBATUVLO
Q5/Q6
1.045 x VBAT
PMID_REG
9.3 Feature Description
9.3.1 Linear Charger and Power Path
The BQ21062 IC integrates a linear charger that allows the battery to be charged with a programmable charge
current of up to 500 mA. In addition to the charge current, other charging parameters can be programmed
www.ti.com
BQ21062
SLUSE42 – JULY 2020
Copyright © 2020 Texas Instruments Incorporated
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