BQ24765_15 Datasheet, PDF (6/37 Pages) Texas Instruments – SMBus-Controlled Multi-Chemistry Battery Charger With Integrated Power MOSFETs

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
V_{DCIN_OP}
DCINA/DCINP input voltage
operating range
7
24
V
CHARGE VOLTAGE REGULATION
V_{VFB_OP}
VFB input voltage range
ChargeVoltage() = 0x41A0
0
DCINA
V
16.716 16.8 16.884
V
–0.5%
0.5%
V_{VFB_REG_ACC}
VFB charge voltage regulation
accuracy
ChargeVoltage() = 0x3130
12.529 12.592 12.655
V
–0.5%
0.5%
ChargeVoltage() = 0x20D0
8.350
8.4 8.450
V
–0.6%
0.6%
V_{VFB_REG_RNG}
Charge voltage regulation range
CHARGE CURRENT REGULATION
1.024
19.2
V
V_{IREG_CHG_RNG}
Charge current regulation
differential voltage range
V_{IREG_CHG} = V_CSOP – V_CSON, Maximum charge current
is 8.064A with 10mΩ sense resistor.
0
8064
mV
ChargeCurrent() = 0x0F80
3968
mA
–3%
3%
I_{CHRG_REG_ACC}
ChargeCurrent() = 0x0800
Charge current regulation accuracy
ChargeCurrent() = 0x0200
2048
mA
–5%
5%
512
mA
–25%
25%
ChargeCurrent() = 0x0080
128
mA
–33%
33%
INPUT CURRENT REGULATION
V_{IREG_DPM_RNG}
Adapter current regulation
differential voltage range
V_{IREG_DPM} = V_CSSP – V_CSSN
0
110.08
mV
InputCurrent() ≥ 0x0800
4096
mA
–3%
3%
I_{INPUT_REG_ACC}
Input current regulation accuracy
InputCurrent() = 0x0400
InputCurrent() = 0x0100
2048
mA
–5%
5%
512
mA
–25%
25%
InputCurrent() = 0x0080
256
mA
–33%
33%
THERMAL REGULATION
T_{J_REG_ACC}
Junction temperature regulation
accuracy
CE=High; Charging
110
120
130
°C
VREF REGULATOR
V_{VREF_REG}
I_{VREF_LIM}
VDDP REGULATOR
VREF regulator voltage
VREF current limit
V_DCIN > V_{DCIN_UVLO}; V_ACIN > 0.6V
V_VREF = 0 V, V_{DCIN_UVLO}; V_ACIN > 0.6 V
3.267
3.3 3.333
V
35
75
mA
V_{VDDP_REG}
I_{VDDP_LIM}
VDDP regulator voltage
VDDP current limit
V_DCIN > V_{DCIN_UVLO}; V_ACIN > 2.4V, CE=High
V_VDDP = 0V, V_DCIN > V_{DCIN_UVLO};
V_ACIN > 2.4V, CE=High
V_VDDP = 5V, V_DCIN > V_{DCIN_UVLO};
V_ACIN > 2.4V, CE=High
5.7
6.0
6.3
V
90
135
mA
80
6
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