BQ24618_15 Datasheet, PDF (8/43 Pages) Texas Instruments – System Power Selector and Low

bq24618
SLUSA55B – OCTOBER 2010 – REVISED APRIL 2015
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7.5 Electrical Characteristics
4.7 V ≤ V_VCC ≤ 28 V, 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
4.7
28
V
Total battery discharge current (sum of
currents into VCC, BTST, PH, ACP,
ACN, SRP, SRN, VFB), VFB ≤ 2.1 V
V_VCC < V_SRN, V_VCC > V_UVLO (SLEEP)
I_BAT
Battery discharge current (sum of
V_VCC > V_SRN, V_VCC > V_UVLO CE = LOW
currents into BTST, PH, SRP, SRN,
VFB), VFB ≤ 2.1 V
V_VCC > V_SRN, V_VCC > V_VCCLOW CE = HIGH, charge
done
15
5
µA
5
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
Feedback regulation voltage
Charge voltage regulation accuracy
I_VFB
Leakage current into VFB pin
CURRENT REGULATION – FAST CHARGE
T_J = 0°C to 85°C
T_J = –40°C to 125°C
VFB = 2.1 V
–0.5%
–0.7%
2.1
V
0.5%
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 > 3.1 V)
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
Precharge-current regulation accuracy
I_ISET2
Leakage current into ISET2 pin
CHARGE TERMINATION
V_{IREG_PRECH} = 20 mV
V_{IREG_PRECH} = 5 mV
V_{IREG_PRECH} = 1.5 mV (V_SRN < 3.1 V)
V_ISET2 = 2 V
–4%
–25%
–55%
4%
25%
55%
100 nA
K_TERM
Termination current set factor (amps of
termination current per volt on ISET2
pin)
R_SENSE = 10 mΩ
1
A/V
Termination current accuracy
Deglitch time for termination (both
edges)
V_ITERM = 20 mV
V_ITERM = 5 mV
V_ITERM = 1.5 mV
–4%
–25%
–45%
4%
25%
45%
100
ms
t_QUAL
Termination qualification time
I_QUAL
Termination qualification current
INPUT CURRENT REGULATION
V_BAT > V_RECH and I_CHG < I_TERM
Discharge current once termination is detected
250
ms
2
mA
V_ACSET
V_{IREG_DPM}
K_ACSET
ACSET voltage range
ACP-ACN current sense voltage range
Input current set factor (amps of input
current per volt on ACSET pin)
V_{IREG_DPM} = V_ACP – V_ACN
R_SENSE = 10 mΩ
2
V
100 mV
5
A/V
8
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