Datasheet

AC
USB
+
Reference, Bias & UVLO
ISET2
Thermal
Shutdown
Precharge
Recharge
Term
STAT1
STAT2
PSEL
Suspend
Sleep (AC)
Sleep (USB)VSS
TS
BAT Charge Enable
USB Charge Enable
500 mA/ 100 mA
*
*
*
*
*
*
*
*
Signal Deglitched
UVLO
+
+
1 V
DPPM
Power Source Selection
+
+
++
60 mV
200 mV
+
+
+
+
Disable−
Sleep
DPPM
Scaling
ISET1
BAT
3.3−V LDO LDO
OUT
AC Charge Enable
Q2
Q3
Short Circuit
Recovery
BAT
Short−Circuit
Recovery
USB
Charge
Enable
100 mA / 500 mA
BAT
Charge
Enable
Short−Circuit Recovery
+
Q1
USB
Charge
Enable
AC
100 mA /
500 mA
+
TMR Oscillator
500 Ω
V
O(OUT)
V
O(LDO)
V
I(BAT)
V
I(ISET1)
V
I(IUSB−SNS)
1 kΩ
500 Ω
V
I(IUSB−SNS)
V
O(OUT)
V
O(OUT−REG)
V
IO(AC)
Charge
Enable
V
I(IUSB−SNS)
V
O(BAT−REG)
V
I(BAT)
V
O(BAT−REG)
V
I(BAT)
V
I(ISET1)
Fast Precharge
V
O(OUT)
I
(DPPM)
V
SET
V
SET
V
DPPM
T
J
T
J(REG)
V
SET
V
(HTF)
V
(LTF)
V
O(BAT−REG)
V
BAT
V
BAT
CE
I
(TS)
V
I(ISET1)
V
BAT
V
AC
V
BAT
V
USB
V
I(BAT)
V
O(OUT)
V
(SET)
C/S − 100 mA
1C − 500 mA
Fast Precharge
ACPG
USBPG
Charge
Control
Timer
and
Display
Logic
UDG−04084
Recovery
Fault
10 mA
1 V
280 kΩ
bq24030, bq24031
bq24032A, bq24035, bq24038
SLUS618H –AUGUST 2004–REVISED OCTOBER 2009............................................................................................................................................... www.ti.com
FUNCTIONAL BLOCK DIAGRAM FOR bq24030/31/32A/35 ONLY
(1) For bq24038 see bq24038 Differences in the Functional Descriptions section.
10 Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated
Product Folder Link(s): bq24030, bq24031 bq24032A, bq24035, bq24038