LT1239 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1239 Datasheet PDF : 12 Pages
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LT1239
TYPICAL APPLICATIONS
NiCd Backup System with 20mA Charge Current
NiCd Backup System with 5mA Trickle Charge
MAIN
BATTERY
PACK
+
5µF
5V POWER
SYSTEM
LT1239 • TA02
IN 1
OUT 1
ADJ
SHDN1
IMON1
LT1239
IN2
E/A (IN)
50Ω
650k
+
10µF
750k
6V NiCd
BACKUP
BATTERY
SHDN2 E/A (0UT)
OUT2
5VIN GND IMON2 +
10µF
MEMORY
POWER
MONITORING
CIRCUITRY
MAIN
BATTERY
PACK
+
5µF
5V POWER
SYSTEM
IN 1
OUT 1
ADJ
SHDN1
IMON1
LT1239
IN2
E/A (IN)
SHDN2 E/A (0UT)
OUT 2
5VIN GND IMON2
LT1239 • TA03
NiCd
BACKUP
BATTERIES
+
165k
1µF
+
10µF
+
10µF
MEMORY
POWER
MONITORING
CIRCUITRY
PACKAGE DESCRIPTION Dimension in inches (millimeters) unless otherwise noted.
S Package
16-Lead Plastic DIP
0.386 – 0.394*
(9.804 – 10.008)
16 15 14 13 12 11 10 9
0.228 – 0.244
(5.791 – 6.197)
0.150 – 0.157*
(3.810 – 3.988)
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
0.016 – 0.050
0.406 – 1.270
0° – 8° TYP
1
2
3
4
5
6
7
8
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.014 – 0.019
(0.355 – 0.483)
0.050
(1.270)
TYP
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
SO16 0893
RELATED PARTS
PART NUMBER
DESCRIPTION
LT1111
Micropower DC/DC Converter with Adjustable or Fixed 5V or 12V Output
LT1120A
Micropower Regulator and Comparator with Shutdown
LT1121
Micropower Regulator with Shutdown
LTC®1232
Microprocessor Supervisory Circuit
LTC1325
Microprocessor-Controlled Battery Management System
LTC1443/LTC1444/LTC1445 Quad Micropower Comparators with Reference
LT1510
Programmable PWM Battery Charger with 2A Peak Current Capability
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
(408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977
COMMENTS
Low-Battery Detector
20µA Supply Current
0.4V Dropout Voltage at 150mA
Minimum External Components
Charges Battery and Provides Gas Gauge
6µA Quiescent Current
Charges NiCd, NiMH
LT/GP 0695 10K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1995
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