BQ24030 Datasheet, PDF (8/20 Pages) Texas Instruments – SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINYI)

bq24030, bq24032, bq24035
SLUS618 – AUGUST 2004
FUNCTIONAL BLOCK DIAGRAM
www.ti.com
500 Ω
Short Circuit Recovery
AC
100 mA /
500 mA
USB
Charge
Q1
Enable
V_SET
+
500 Ω
BAT Short
1 kΩ Circuit
Recovery
V_O(OUT)
V_O(LDO)
3.3 V LDO
OUT
LDO
USB
V_IO(AC)
AC Charge
Enable
V_O(OUT)
V_{I(IUSB−SNS)}
+
V_{O(OUT−REG)}
Short Circuit
Recovery
Reference, Bias & UVLO
TMR
V_{O(BAT−REG)}
UVLO
Oscillator
V_I(BAT)
V_{I(IUSB−SNS)}
+
V_SET 100 mA / 500 mA
V_I(BAT)
+
V_{O(BAT−REG)}
Q3
V_{I(IUSB−SNS)}
Q2
V_I(BAT)
BAT
V_I(ISET1)
ISET1
USB
Charge
Enable
DPPM
TS
PSEL
CE
VSS
V_O(OUT)
V_{I(ISET1) +}
Fast Pre-Charge
DPPM
+ ^{I(DPPM) Scaling}
+
1V
V_(HTF)
I_(TS)
V_(LTF)
V_SET
*
+
V_OUT
T_J
Disable−
Sleep
+
T_J(REG)
Thermal
Shutdown
Suspend
*
Power Source Selection
V_I(BAT)
V_O(OUT)
V_{O(BAT−REG)}
V_BAT
*
Recharge
V_BAT
V_I(ISET1)
V_BAT
V_AC
V_BAT
V_USB
*
V_(SET)
*
Precharge
Taper
Sleep (AC)
*
Sleep (USB)
*
* _{Signal Deglitched}
Charge
Control
Timer
and
Display
Logic
BAT
Charge
Enable
60 mV
+
200 mV
+
USB Charge Enable
AC Charge Enable
BAT Charge Enable
500 mA/ 100 mA
Fast Pre-Charge
1C − 500 mA
C/S − 100 mA
ISET2
ACPG
USBPG
STAT1
STAT2
UDG−04084
UDG−04084
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