BQ24004_12 Datasheet, PDF (3/27 Pages) Texas Instruments – TWO-CELL Li-ION CHARGE MANAGEMENT IC

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SLUS476F – DECEMBER 2000 – REVISED MAY 2012
ELECTRICAL CHARACTERISTICS
over recommended operating junction temperature supply and input voltages, and V_I (V_CC) ≥ V_I (IN) ( unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
V_CC current
V_CC > V_CC_UVLO, EN ≤ V_(IHEN)
V_CC current, standby mode
EN ≤ V_(ILEN)
IN current, standby mode
EN ≤ V_(ILEN)
Standby current (sum of currents ^VCC ^{< V}CC^_UVLO,
into OUT and VSENSE pins)
EN ≤ V_(ILEN),
V_O(OUT) = 8.6 V, VSENSE = 8.6 V
V_O(OUT) = 8.6 V, VSENSE = 8.6 V
VOLTAGE REGULATION, 0°C ≤ T_J ≤ 125°C
Output voltage
VSEL = V_SS,
VSEL = V_CC,
0 < I_O ≤ 1.2 A
0 < I_O ≤ 1.2 A
Load regulation
1 mA ≤ I_O≤ 1.2 A,V_CC = 10 V, V_I(IN)= 5 V,T_J = 25°C
Line regulation
V_O(OUT) + V_DO + V_(ilim)MAX < V_I(VCC) < 10 V, T_J = 25°C
Dropout voltage = VI(IN)-Vout
I_O = 1.2 A, V_O(OUT) + V_(DO) + V_(ilim)MAX < V_I(VCC) < 10 V
CURRENT REGULATION, 0°C ≤ T_J ≤ 125°C
Current regulation threshold,
V_I(limit)
VSENSE < V_{O(VSEL-LOW/HIGH)}
Delay time
VSENSE pulsed above V_(LOWV) to I_O = 10% of regulated
value ⁽¹⁾
1 mA
1
µA
10 µA
2
8
µA
2
8
8.118 8.20 8.282
V
8.316 8.40 8.484
1
mV
0.01
%/V
0.5 V
0.093
0.1 0.107 V
1 ms
Rise time
I_O increasing from 10% to 90% of regulated value,
R_(SNS) ≥ 0.2 Ω⁽¹⁾
CURRENT SENSE RESISTOR, 0°C ≤ T_J ≤ 125°C
External current sense resistor
range R_(SNS)
100 mA ≤ (ilim) ≤ 1.2
A
PRECHARGE CURRENT REGULATION, 0°C ≤ T_J ≤ 125°C
Precharge current regulation
VSENSE<V_(LOWV), 0.083 ≤ R_(SNS)≤ 1.0 Ω
V_CC UVLO COMPARATOR, 0°C ≤ T_J ≤ 125°C
Start threshold
0.1
1 ms
0.083
1Ω
40
60
80 mA
8.75 8.9 9.0 V
Stop threshold
8.50 8.66 8.8 V
Hysteresis
50
mV
APG/THERM COMPARATOR, 0°C ≤ T_J ≤ 125°C
Upper trip threshold
1.480 1.498 1.515 V
Lower trip threshold
0.545 0.558 0.570 V
Input bias current
1 µA
LOWV COMPARATOR, 0°C ≤ T_J ≤ 125°C
Start threshold
5.60 5.75 5.90 V
Stop threshold
6.10 6.25 6.40 V
Hysteresis
100
mV
HIGHV (RECHARGE) COMPARATOR, 0°C ≤ T_J ≤ 125°C
Start threshold
7.70 7.85 8.00 V
OVERV COMPARATOR, 0°C ≤ T_J ≤ 125°C
Start threshold
8.85 9.00 9.15 V
Stop threshold
8.45 8.60 8.75 V
Hysteresis
50
mV
TAPERDET COMPARATOR, 0°C ≤ T_J ≤ 125°C
Trip threshold
12 18.5
25 mV
EN LOGIC INPUT, 0°C ≤ T_J ≤ 125°C
High-level input voltage
2.25
V
Low-level input voltage
0.8 V
Input pulldown resistance
100
200 kΩ
(1) Specified by design, not production tested.
Copyright © 2000–2012, Texas Instruments Incorporated
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