Datasheet

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ELECTRICAL CHARACTERISTICS
bq24702
bq24703
SLUS553E – MAY 2003 – REVISED OCTOBER 2007
– 40 ° C ≤ T
J
≤ 125 ° C, 7 V
DC
≤ V
CC
≤ 28 V
DC
, all voltages relative to V
SS
(unless otherwise specified)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
QUIESCENT CURRENT
I
DD(OP)
Total chip operating current ACPRES = High, EN = 0 1 1.6 6 mA
I
DD(SLEEP)
Total battery sleep current, ac not present ACPRES = Low 22 28 μ A
LOGIC INTERFACE DC CHARACTERISTICS
V
OL
Low-level output voltage (ACPRES, ALARM) I
OL
= 1 mA 0.4 V
V
IL
Low-level input voltage (ACSEL, ENABLE) 0.6 V
V
IH
High-level input voltage (ACSEL, ENABLE) 1.8 V
I
(SINK1)
Sink current (ACPRES) V
OL
= 0.4 1.5 2 2.5 mA
I
(SINK2)
Sink current (ALARM) V
OL
= 0.4 1.5 2 2.5 mA
PWM OSCILLATOR
0 ° C ≤ T
J
≤ 85 ° C 280 300 340
f
OSC(PWM)
Oscillator frequency kHz
– 40 ° C ≤ T
J
≤ 125 ° C 240 300 350
Maximum duty cycle 100%
Input voltage for maximum dc (COMP) 3.8 V
Minimum duty cycle 0%
Input voltage for minimum dc (COMP) 0.8 V
V
(RAMP)
Oscillator ramp voltage (peak-to-peak) 1.85 2.15 2.30
Internal input clamp voltage
V
IK(COMP)
3.8 4.5
(tracks COMP voltage for maximum dc)
I
S(COMP)
Internal source current (COMP) Error amplifier = OFF, V
(COMP)
= 1 V 70 110 140 μ A
LEAKAGE CURRENT
I
L( ACDET)
Leakage current, ACDET V
(ACDET)
= 5 V 0.2 μ A
I
L(SRSET)
Leakage current, SRSET V
(SRSET)
= 2.5 V 0.2 μ A
I
L(ACSET)
Leakage current, ACSET V
(ACSET)
= 2.5 V 0.2 μ A
I
L(BATDEP)
Leakage current, BATDEP V
(BATDEP)
= 5 V 0.2 μ A
I
L(VS)
Leakage current, VS V
(VS)
= 5 V 0.2 μ A
I
L(ALARM)
Leakage current, ALARM V
(ALARM)
= 5 V 0.2 μ A
I
L(ACSEL)
Leakage current, ACSEL V
(ACSEL)
= 5 V 0.2 μ A
I
L(ENABLE)
Leakage current, ENABLE V
(ENABLE)
= 5 V 0.2 μ A
I
L(ACPRES)
Leakage current, ACPRES V
(ACPRES)
= 5 V 0.2 μ A
I
L(BATP)
Leakage current, BATP V
(BATP)
= 5 V 0.2 μ A
I
L(BATSET)
Leakage current, BATSET V
(BATSET)
= 2.5 V 0.2 μ A
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