BQ24747 Datasheet, PDF (6/36 Pages) Texas Instruments – SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator and Charge Enable Pin

bq24747
SLUS988 – OCTOBER 2009 ............................................................................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS
7.0 V ≤ V(DCIN) ≤ 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}
DCIN input voltage operating range
CHARGE VOLTAGE REGULATION
7
24
V
V_{VFB_OP}
VFB input voltage range
ChargeVoltage() = 0x41A0
0
16.716
–0.5%
DCIN
V
16.8 16.884
V
0.5%
V_{VFB_REG _ACC} VFB charge voltage regulation accuracy
ChargeVoltage() = 0x3130
ChargeVoltage() = 0x20D0
12.529 12.592 12.655
V
–0.5%
0.5%
8.350
8.4
8.450
V
–0.6%
0.6%
ChargeVoltage() = 0x1060
4.154
4.192
4.230
V
–0.9%
0.9%
V_{VFB_REG_ RNG Charge voltage regulation range}
T_J = 0 to 125°C, 1.024 V–19.2 V, Max DAC
value is 19.2 V
1.024
19.2
V
CHARGE CURRENT REGULATION
V_{IREG_CHG_RNG} Charge current regulation differential voltage
range
V_{IREG_CHG} = V_CSOP – V_CSON, Max DAC value
is 80.64 mV
0
80.64 mV
ChargeCurrent() = 0x0F80
–3%
3968
mA
3%
I_{CHRG_REG_ACC} Charge current regulation accuracy
ChargeCurrent() = 0x0800
ChargeCurrent() = 0x0200
–5%
–25%
2048
512
mA
5%
mA
25%
ChargeCurrent() = 0x0080
–33%
128
mA
33%
INPUT CURRENT REGULATION
V_{IREG_DPM_RNG} Adapter current regulation differential voltage V_{IREG_DPM} = V_CSSP – V_CSSN, Max DAC value
range
is 110.084 mV
0
110.1 mV
InputCurrent() ≥ 0x0800
–3%
4096
mA
3%
I_{INPUT_REG_ACC} Input current regulation accuracy
InputCurrent() = 0x0400
InputCurrent() = 0x0100
–5%
–25%
2048
512
mA
5%
mA
25%
InputCurrent() = 0x0080
–33%
256
mA
33%
VREF REGULATOR
V_{VREF_REG}
VREF regulator voltage
I_{VREF_LIM}
VREF current limit
VDDP REGULATOR
V_ACIN > 0.6 V, 0 - 30 mA
V_VREF = 0 V, V_ACIN > 0.6 V
3.267
35
3.3
3.333
V
80 mA
V_{VDDP_REG}
I_{VDDP_LIM}
VDDP regulator voltage
VDDP current limit
V_ACIN > 0.6 V, 0 - 50 mA
V_VDDP = 0 V, V_ACIN > 0.6 V
V_VDDP = 5 V, V_ACIN > 0.6 V
5.7
6.0
6.3
V
90
135
mA
80
6
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