BQ24765_15 Datasheet, PDF (17/37 Pages) Texas Instruments – SMBus-Controlled Multi-Chemistry Battery Charger With Integrated Power MOSFETs

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FUNCTIONAL BLOCK DIAGRAM
bq24765
SLUS999 – NOVEMBER 2009
ACIN
DCINA
CE
CSSP
CSSN
VFB
CSOP
CSON
VDDSMB
SDA
SCL
ICREF
ICOUT
0.6V ^-
+
ENA_BIAS
DCIN_UVLO
2.4V ⁺
-
ENA
DCIN A
3.3V
LDO
VREF
ACOK
DCIN _UVLO
(DCIN-VFB)_CMP
ACOK
VREF
+
20X
-
20xV(CSSP-CSSN)
-
IIN_REG
+
IIN_ER
FBO
10mA
CHRG_ENA
- BAT_ER
VBAT _REG
+
Tj _-
120dgC
+
TEMP_ER
EAI
COMP
ERROR
AMPLIFIER
-
+
200mV
EAO
CHRG_ENA
CBC_OCP
LEVEL
SHIFTER
QTOP
FBO
EAI
EAO
BOOT
DCINP
DCINP
DCINP
+
20X
-
20xV(CSOP-CSON)
-
IBAT_ REG ₊
ICH_ER
20uA
DAC_VALID
CHG_UCP
DC-DC
CONVERTER
PWM LOGIC
BAT _SHORT
BAT _LOWV
DCINP
6V LDO
PHASE
PHASE
PHASE
PHASE
PHASE
VDDP
V(BOOT-PHASE) -
+
4V ^+_
REFRESH
CBTST
SMBus_Bias
SMBus
Logic
DAC_VALID
IC Tj +
155degC
-
TSHUT
V(DCINA-VFB)
185mV
- _{(DCIN-VFB)_CMP}
+
CHRG_V
(11 bit DAC)
VBAT_REG _{145% X IBAT _REG}
-
CHRG_I
(6 bit DAC)
IBAT_REG ^{20xV(CSOP-CSON)}
+
INPUT_I
(6 bit DAC)
IIN_REG
DCINA -
VICM +
+
4V
+
-
-
VDDSMB
-
+
2.35V
+
-
CHG_OCP
DCIN_UVLO
VDDSMB_UVLO
QBOT
20xV(CSSP-CSSN) _1x
ENA_BIAS
PGND
PGND
PGND
PGND
VICM
AGND
CSOP +
CSON
-
10mV
CHG_UCP
VFB
-
+
3.6V
+
-
BAT _LOWV
VFB
-
+
2.5V
+
-
BAT _SHORT
bq24765
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