BQ24702_16 Datasheet, PDF (5/37 Pages) Texas Instruments – MULTICHEMISTRY BATTERY CHARGER CONTROLLER

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bq24702
bq24703
SLUS553E – MAY 2003 – REVISED OCTOBER 2007
ELECTRICAL CHARACTERISTICS
–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
QUIESCENT CURRENT
I_DD(OP)
Total chip operating current
ACPRES = High, EN = 0
1
I_DD(SLEEP)
Total battery sleep current, ac not present
ACPRES = Low
LOGIC INTERFACE DC CHARACTERISTICS
V_OL
Low-level output voltage (ACPRES, ALARM) I_OL = 1 mA
V_IL
Low-level input voltage (ACSEL, ENABLE)
V_IH
High-level input voltage (ACSEL, ENABLE)
1.8
I_(SINK1)
Sink current (ACPRES)
V_OL = 0.4
1.5
I_(SINK2)
Sink current (ALARM)
V_OL = 0.4
1.5
PWM OSCILLATOR
f_OSC(PWM)
Oscillator frequency
Maximum duty cycle
0°C ≤ T_J ≤ 85°C
–40°C ≤ T_J ≤ 125°C
280
240
100%
Input voltage for maximum dc (COMP)
3.8
Minimum duty cycle
Input voltage for minimum dc (COMP)
V_(RAMP)
V_IK(COMP)
Oscillator ramp voltage (peak-to-peak)
Internal input clamp voltage
(tracks COMP voltage for maximum dc)
1.85
I_S(COMP)
Internal source current (COMP)
LEAKAGE CURRENT
Error amplifier = OFF, V_(COMP) = 1 V
70
I_L(ACDET)
I_L(SRSET)
I_L(ACSET)
I_L(BATDEP)
I_L(VS)
I_L(ALARM)
I_L(ACSEL)
I_L(ENABLE)
I_L(ACPRES)
I_L(BATP)
I_L(BATSET)
Leakage current, ACDET
Leakage current, SRSET
Leakage current, ACSET
Leakage current, BATDEP
Leakage current, VS
Leakage current, ALARM
Leakage current, ACSEL
Leakage current, ENABLE
Leakage current, ACPRES
Leakage current, BATP
Leakage current, BATSET
V_(ACDET) = 5 V
V_(SRSET) = 2.5 V
V_(ACSET) = 2.5 V
V_(BATDEP) = 5 V
V_(VS) = 5 V
V_(ALARM) = 5 V
V_(ACSEL) = 5 V
V_(ENABLE) = 5 V
V_(ACPRES) = 5 V
V_(BATP) = 5 V
V_(BATSET) = 2.5 V
TYP MAX UNIT
1.6
6 mA
22
28 μA
0.4 V
0.6 V
V
2 2.5 mA
2 2.5 mA
300 340
kHz
300 350
V
0%
0.8 V
2.15 2.30
3.8 4.5
110 140 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
0.2 μA
Copyright © 2003–2007, Texas Instruments Incorporated
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