BQ24750_07 Datasheet, PDF (7/38 Pages) Texas Instruments – Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection

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bq24750
SLUS735 – DECEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
7.0 V ≤ V_PVCC≤ 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
REGN REGULATOR
V_{REGN_REG}
REGN regulator voltage
I_{REGN_LIM}
REGN current limit
ADAPTER CURRENT SENSE AMPLIFIER
V_ACDET > 0.6 V, 0-75 mA, PVCC > 10 V
V_REGN = 0 V, V_ACDET > 0.6 V
5.6 5.9
90
6.2
V
135 mA
V_{ACP/N_OP}
V_IADAPT
I_IADAPT
A_IADAPT
Input common mode range
IADAPT output voltage range
IADAPT output current
Current sense amplifier voltage gain
Adapter current sense accuracy
I_{IADAPT_LIM}
Output current limit
C_{IADAPT_MAX}
Maximum output load capacitance
ACDET COMPARATOR
Voltage on ACP/ACN
A_IADAPT = V_IADAPT / V_{IREG_DPM}
V_{IREG_DPM} = 40–100 mV
V_{IREG_DPM} = 20 mV
V_{IREG_DPM} = 5 mV
V_{IREG_DPM} = 1.5 mV
V_IADAPT = 0 V
For stability with 0 mA to 1 mA load
0
0
0
20
–2
–3
–25
–33
1
24
V
2
1 mA
V/V
2
3
%
25
33
mA
100
pF
V_{ACDET_CHG}
ACDET adapter-detect rising
threshold
Min voltage to enable charging, V_ACDET
2.376 2.40 2.424
V
rising
V_{ACDET_CHG_HYS} ACDET falling hysteresis
ACDET rising deglitch
V_ACDET falling
VACDET rising
40
518 700
mV
908 ms
ACDET falling deglitch
VACDET falling
10
µs
V_{ACDET_BIAS}
ACDET enable-bias rising threshold Min voltage to enable all bias, V_ACDET
rising
0.56 0.62 0.68
V
V_{ACDET_BIAS_HYS}
Adapter present falling hysteresis
ACDET rising deglitch
ACDET falling deglitch
V_ACDET falling
V_ACDET rising
V_ACDET falling
20
mV
10
µs
10
µs
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