LT1004 Datasheet, PDF (12/13 Pages) Texas Instruments – MICROPOWER INTEGRATED VOLTAGE REFERENCES

LT1004-1.2, LT1004-2.5
MICROPOWER INTEGRATED VOLTAGE REFERENCES
SLVS022H – JANUARY 1989 – REVISED JULY 1999
APPLICATION INFORMATION
R1†
1%
133 kΩ
1%
1 MΩ
LT1004-1.2
+
TLC271
–
Battery Output
12 V
LO = Battery Low
†R1 _{sets trip point, 60.4 kΩ per cell for 1.8 V per cell}
Figure 28. Lead-Acid Low-Battery-Voltage Detector
VI
+
10 µF
LT1084
VI
VO
ADJ
LT1004-1.2
120 Ω
VO
+
10 µF
R1 ≤
VCC – 1 V
0.015
R1
2 kΩ
VCC–
Figure 29. Variable-Voltage Supply
12
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