BQ24616 Datasheet, PDF (4/34 Pages) Texas Instruments – JEITA Guideline Compatible Stand-Alone Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger with System Power Selector and Low Iq

bq24616
SLUSA49A – APRIL 2010 – REVISED MAY 2010
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ELECTRICAL CHARACTERISTICS
5.0V ≤ V(VCC) ≤ 28V, 0°C < T_J < +125°C, typical values are at T_A = 25°C, with respect to GND (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
OPERATING CONDITIONS
V_{VCC_OP}
VCC input voltage operating range
QUIESCENT CURRENTS
5.0
28.0
V
Total battery discharge current (sum of
currents into VCC, BTST, PH, ACP,
V_VCC < V_SRN, V_VCC > V_UVLO (SLEEP)
ACN, SRP, SRN, VFB), V_FB ≤V_{FB_REG}
I_BAT
Battery discharge current (sum of
V_VCC > V_SRN, V_VCC > V_UVLO CE = LOW
currents into BTST, PH, SRP, SRN,
VFB), V_FB ≤V_{FB_REG}
V_VCC > V_SRN, V_VCC > V_VCCLOW CE = HIGH, Charge
done
15 mA
5 µA
5 µA
V_VCC > V_SRN, V_VCC > V_UVLO CE = LOW (IC quiescent
current)
1
1.5
I_AC
Adapter supply current (current into
VCC,ACP,ACN pin)
V_VCC > V_SRN, V_VCC >V_VCCLOW, CE = HIGH, charge
done
2
5 mA
V_VCC > V_SRN, V_VCC >V_VCCLOW, CE = HIGH, Charging,
Qg_total = 20 nC
25
CHARGE VOLTAGE REGULATION
V_{FB_REG}
Feedback Regulation Voltage
Charge Voltage Regulation Accuracy
I_VFB
Leakage Current into V_FB pin
CURRENT REGULATION – FAST CHARGE
V_T3 < V_TS < V_T1
V_T4 < V_TS < V_T3
V_T5 < V_TS < V_T4
T_J = 0 to 85°C
T_J = –40 to 125°C
V_FB = 2.1V, 2.05V, 2.025V
2.1
2.05
V
2.025
–0.5%
–0.5%
–0.7%
–0.7%
100 nA
V_ISET1
V_{IREG_CHG}
K_ISET1
ISET1 voltage range
SRP-SRN current sense voltage range
Charge current set factor (amps of
charge current per volt on ISET1 pin)
V_{IREG_CHG} = V_SRP – V_SRN
R_SENSE = 10 mΩ
2
V
100 mV
5
A/V
Charge current regulation accuracy
I_ISET1
Leakage current into ISET1 pin
CURRENT REGULATION – PRECHARGE
V_{IREG_CHG} = 40 mV
V_{IREG_CHG} = 20 mV
V_{IREG_CHG} = 5 mV
V_{IREG_CHG} = 1.5 mV (V_SRN > 3.1V)
V_ISET1 = 2 V
–3%
–4%
–25%
–40%
3%
4%
25%
40%
100 nA
V_ISET2
K_ISET2
ISET2 voltage range
Precharge current set factor (amps of
precharge current per volt on ISET2 pin)
R_SENSE = 10 mΩ
2
V
1
A/V
I_ISET2
Precharge current regulation accuracy
Leakage current into ISET2 pin
V_{IREG_PRECH} = 20 mV
V_{IREG_PRECH} = 5 mV
V_{IREG_PRECH} = 1.5 mV (V_SRN < 3.1V)
V_ISET2 = 2V
–4%
–25%
–55%
4%
25%
55%
100 nA
4
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