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STW4102IQT Folha de dados(PDF) 4 Page - STMicroelectronics

Nome de Peças STW4102IQT
Descrição Electrónicos  Dual USB/wall adapter Li-ion battery charger with gas gauge
PDF  34 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW4102IQT Folha de dados(HTML) 4 Page - STMicroelectronics

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Block diagram
STw4102
4/34
1
Block diagram
Figure 1.
Internal block diagram
Driver
Current Sense
Voltage
Current
Regulation
Main
USB
Detect
CC/CV
Main Power Device (max 1A)
USB Power Device (max 500mA)
Voltage Sense
Thermal regulation
EOCHG
adapter
Detect
Charge Voltage
Charge current
CC/CV
configuration
Trickle current
Trickle threshold
LDO driver 4.7V
Main supply
AD converter
12 bits + sign bit
24 bit accumulator
Control registers
Current defined by
external resistor
Power On
I2C interface
Reset
Vref
Internal
Supply
VOUT
SENSE
BATT
BATTSENSE
ISET
CVIS
STDBY
C32KHZ
ICG+
ICG-
GND
RESETN
SDA
SCL
VIO
LDOFB
LDODRV
CVREF
PWRDETECTN
MAIN
USBPWR
DRIVER
AD converter
7-12 bits
Control
Registers
Battery voltage
Charge Control
Registers
LDO
Battery Monitoring
TEST



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