LT1004CDRG4-1-2 Datasheet, PDF (13/25 Pages) Texas Instruments – MICROPOWER INTEGRATED VOLTAGE REFERENCES

R1^†
1%
133 kΩ
1%
LT1004-1.2, LT1004-2.5
MICROPOWER INTEGRATED VOLTAGE REFERENCES
SLVS022M − JANUARY 1989 − REVISED MAY 2008
APPLICATION INFORMATION
Battery Output
1 MΩ
12 V
+
TLC271
−
LO = Battery Low
LT1004-1.2
† _{R1 sets trip point, 60.4 kΩ per cell for 1.8 V per cell.}
Figure 28. Lead-Acid Low-Battery-Voltage Detector
V_I
+
10 µF
LT1084
V_I
V_O
ADJ
LT1004-1.2
120 Ω
V_O
+
10 µF
R1 ≤
V_CC − 1 V
0.015
R1
2 kΩ
V_CC−
Figure 29. Variable-Voltage Supply
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