Datasheet

UVLO
WAKEUP
3.75V
0.6V
EN_REGN
2.4V
ACOK_DRV
20X
VREF_IAC
20X
VREF_ICHG
VREF_VREG
FBO EAI
EAO
RAMP
Frequency **
200mV
4mA in
BATOVP
SMBus Interface
ChargeOption()
ChargeCurrent()
ChargeVoltage()
InputCurrent()
ManufactureID()
DeviceID()
15
14
19
18
17
7
13
12
5
6
20
2
1
8
9
3
10uA
REGN
LDO
REGN
LDO
VFB
BATOVP
VFB
104%VREF_VREG
VCC
SRN+245mV
VCC-SRN
CHG_UCP
5mV
SRP-SRN
CHG_OCP
SRP-SRN
60mV/90mV/120mV
BAT_LOWV
2.5V
SRN
TSHUT
Tj
155?C
REFRESH
4.3V
BTST-PH
1X
10
VCC
ACDET
ACOK
IOUT
ACP
ACN
ILIM
SRP
SRN
SDA
SCL
GND
LODRV
REGN
PHASE
HIDRV
BTST
CMPOUT
CMPIN
bq24707 and bq24707A Block Diagram
** Threshold or deglitch time is adjustable by ChargeOption()
Type III
Compensation
ACGOOD
VCC_SRN
CE
ILIM
105mV
WATCHDOG
TIMEOUT
EN_REGN
EN_CHRG
HSON
LSON
Driver Logic
IFAULT_HI
ACP-PH
700mV **
ACOC
ACP-ACN
1.66xVREF_IAC **
MUX
4
1.3s rising deglitch** (bq24707)
1.2ms rising deglitch** (bq24707A)
IFAULT_LOPH-GND
110mV
LIGHT_LOAD
1.25mV
SRP-SRN
PWM
WATCHDOG
TIMER
175s **
WATCHDOG
TIMER
175s **
DAC_VALID
CHARGE_INHIBIT
ACOK_DRV
16
11
IFAULT
IFAULT
0.6V **
CMPOUT_DRV
50kΩ
2000kΩ
IOUT_SEL
DAC_VALID
CHARGE_INHIBIT
VREF_VREG
VREF_ICHG
VREF_IAC
IOUT_SEL
WAKEUP
FAST_DPM
ACP-ACN
1.08xVREF_IAC
bq24707
bq24707A
SLUSA78B –JULY 2010– REVISED MARCH 2011 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
Figure 15. Functional Block Diagram for bq24707 and bq24707A
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Product Folder Link(s): bq24707 bq24707A