Datasheet
bq24765
SLUS999 –NOVEMBER 2009
www.ti.com
ELECTRICAL CHARACTERISTICS
7.0 V ≤ V(DCINA) ≤ 24 V, 0°C < T
J
< +125°C, typical values are at T
A
= 25°C, with respect to AGND (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OPERATING CONDITIONS
DCINA/DCINP input voltage
V
DCIN_OP
7 24 V
operating range
CHARGE VOLTAGE REGULATION
V
VFB_OP
VFB input voltage range 0 DCINA V
16.716 16.8 16.884 V
ChargeVoltage() = 0x41A0
–0.5% 0.5%
12.529 12.592 12.655 V
VFB charge voltage regulation
V
VFB_REG_ACC
ChargeVoltage() = 0x3130
accuracy
–0.5% 0.5%
8.350 8.4 8.450 V
ChargeVoltage() = 0x20D0
–0.6% 0.6%
V
VFB_REG_RNG
Charge voltage regulation range 1.024 19.2 V
CHARGE CURRENT REGULATION
Charge current regulation V
IREG_CHG
= V
CSOP
– V
CSON
, Maximum charge current
V
IREG_CHG_RNG
0 8064 mV
differential voltage range is 8.064A with 10mΩ sense resistor.
3968 mA
ChargeCurrent() = 0x0F80
–3% 3%
2048 mA
ChargeCurrent() = 0x0800
–5% 5%
I
CHRG_REG_ACC
Charge current regulation accuracy
512 mA
ChargeCurrent() = 0x0200
–25% 25%
128 mA
ChargeCurrent() = 0x0080
–33% 33%
INPUT CURRENT REGULATION
Adapter current regulation
V
IREG_DPM_RNG
V
IREG_DPM
= V
CSSP
– V
CSSN
0 110.08 mV
differential voltage range
4096 mA
InputCurrent() ≥ 0x0800
–3% 3%
2048 mA
InputCurrent() = 0x0400
–5% 5%
I
INPUT_REG_ACC
Input current regulation accuracy
512 mA
InputCurrent() = 0x0100
–25% 25%
256 mA
InputCurrent() = 0x0080
–33% 33%
THERMAL REGULATION
Junction temperature regulation 110 120 130
T
J_REG_ACC
CE=High; Charging °C
accuracy
VREF REGULATOR
V
VREF_REG
VREF regulator voltage V
DCIN
> V
DCIN_UVLO
; V
ACIN
> 0.6V 3.267 3.3 3.333 V
I
VREF_LIM
VREF current limit V
VREF
= 0 V, V
DCIN_UVLO
; V
ACIN
> 0.6 V 35 75 mA
VDDP REGULATOR
V
VDDP_REG
VDDP regulator voltage V
DCIN
> V
DCIN_UVLO
; V
ACIN
> 2.4V, CE=High 5.7 6.0 6.3 V
V
VDDP
= 0V, V
DCIN
> V
DCIN_UVLO
;
90 135
V
ACIN
> 2.4V, CE=High
I
VDDP_LIM
VDDP current limit mA
V
VDDP
= 5V, V
DCIN
> V
DCIN_UVLO
;
80
V
ACIN
> 2.4V, CE=High
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