BQ29441 Datasheet, PDF (5/17 Pages) Texas Instruments – Voltage Protection for 2-Series, 3-Series, or 4-Series Cell Li-Ion Batteries

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SLUSA15C – JUNE 2010 – REVISED NOVEMBER 2010
ELECTRICAL CHARACTERISTICS (continued)
Typical values stated where T_A = 25°C and VDD = 17 V, MIN/MAX values stated where T_A = –40°C to 110°C and VDD = 4 V
to 25 V (unless otherwise noted).
PARAMETER
TEST CONDITION
MIN NOM MAX UNIT
Measured at VC1, (VC1–VC2), (VC2–VC3), (VC3–VC4) and
(VC4–GND) = 3.5 V, T_A = 0°C to 60°C
–0.3
I_IN
Input current at VCx
pins
See Figure 3.
Measured at VC2, VC3 OR VC4, (VC1–VC2), (VC2–VC3),
(VC3–VC4) and (VC4–GND) = 3.5 V, T_A = 0°C to 60°C
–0.3
See Figure 3.
1.5
µA
0.3
µA
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-40
TYPICAL CHARACTERISTICS
I_CD CHARGE CURRENT
vs
TEMPERATURE
I_CD DISCHARGE CURRENT
vs
TEMPERATURE
80
75
70
65
60
55
50
45
-20
0
20 40 60 80
Temperature (°C)
Figure 1. I_CD Charge Current
100
G001
40
-40
-20
0
20 40 60 80
Temperature (°C)
Figure 2. I_CD Discharge Current
100
G002
ICC
I_IN
1 VC1
I_IN
2 VC2
I_IN
3 VC3
4 GND
OUT 8
VDD 7
CD 6
VC4 5
IIN
Figure 3. I_CC, I_IN Measurement
Copyright © 2010, Texas Instruments Incorporated
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