BQ24232H_15 Datasheet, PDF (12/42 Pages) Texas Instruments – bq2423xx USB-Friendly Lithium-Ion Battery Charger and Power-Path Management IC

bq24230H, bq24232H
SLUSBI8A – JANUARY 2014 – REVISED DECEMBER 2014
9.2 Functional Block Diagram
www.ti.com
IN
Short Detect
ILIM
USB100
USB500
USB- susp
EN2
EN1
ITERM
bq24232H
VO (SC1)
OUT- SC1
Q1
EN2
VIN-LOW
VREF-ILIM
VO (REG)
225 mV
Precharge
2. 2.5 V
Fastcharge
TJ
TJ (REG)
VDPPM
VOUT
VBAT(REG)
IBIAS-ITERM
CHARGEPUMP
225 mV
VOUT
40 mV
V LOWV
~3 V
ITERM- _floating
250 mV
VBAT
OUT- SC 2
tDGL(SC2)
OUT
ISET
Short Detect
Q2
BAT
Supplement
VRCH
VBAT _(SC)
VIN
V BAT+ VIN-DT
VUVLO
VOVP
t _{DGL (NO-IN)}
t _DGL(PGOOD)
t _{BLK (OVP)}
BAT - SC
Charge Control
t _{DGL (TS )}
CE
VIPRECHG
V _CIHG
VISET
TMR
~100 mV
EN1
EN2
USB Suspend
Dynamically
Controlled
Oscillator
Halt timers
Reset timers
Timers disabled
Fast- Charge
Timer
Pre -Charge
Timer
Timer fault
I NTC
V HOT
TS
V COLD
VDIS(TS)
TD
bq24230H
CHG
PGOOD
12
Submit Documentation Feedback
Product Folder Links: bq24230H bq24232H
Copyright © 2014, Texas Instruments Incorporated