BQ4050 Datasheet, PDF (23/53 Pages) Texas Instruments – CEDV Gas Gauge and Protection Solution

www.ti.com
7.2 Functional Block Diagram
bq4050
SLUSC67A – MARCH 2016 – REVISED MARCH 2016
SRP
SRN
TS1
TS2
TS3
TS4
Cell
Balancing
Cell Detach
Detection
Wake
Comparator
Cell, Stack,
Pack
Voltage
Short Circuit
Comparator
Over
Current
Comparator
NTC Bias
Voltage
Reference 1
ADC/CC
FRONTEND
ADC MUX
Low
Frequency
Oscillator
Power Mode
Control
Power On
Reset
Voltage
Reference 2
Random
Number
Generator
Internal
Temp
Sensor
High Side
N-CH FET
Drive
Zero Volt
Charge
Control
P-CH
FET Drive
PTC
Overtemp
FUSE
Control
High
Voltage
I/O
Watchdog
Timer
LED Display
Drive I/O
AFE Control
1.8V LDO
Regulator
AFE COM
Engine
SBS High
Voltage
Translation
PTCEN
PTC
FUSE
BTP_INT
/PRES or /SHUTDN
/DISP
LEDCNTLC
LEDCNTLB
LEDCNTLA
SMBD
SMBC
Low Voltage
I/O
ADC/CC
Digital Filter
bqBMP
CPU
PMInstr
(8bit)
PMAddr
(16bit)
Program
Flash
EEPROM
Data Flash
EEPROM
High
Frequency
Oscillator
I /O
Timers &
PWM
I/O &
Interrupt
Controller
Data (8bit)
DMAddr (16bit)
Data
SRAM
AFE COM
Engine
SBS COM
Engine
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: bq4050
Submit Documentation Feedback
23