16
LT1511
1511fb LT/TP 0399 REV B 2K • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1995
APPLICATIONS INFORMATION
WUU
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Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
PACKAGE DESCRIPTION
U
PART NUMBER DESCRIPTION COMMENTS
LTC
®
1325 Microprocessor-Controlled Battery Management System Can Charge, Discharge and Gas Gauge NiCd and Lead-Acid
Batteries with Software Charging Profiles
LT1372/LT1377 500kHz/1MHz Step-Up Switching Regulators High Frequency, Small Inductor, High Efficiency Switchers, 1.5A Switch
LT1376 500kHz Step-Down Switching Regulator High Frequency, Small Inductor, High Efficiency Switcher, 1.5A Switch
LT1505 High Current, High Efficiency Battery Charger 94% Efficiency, Synchronous Current Mode PWM
LT1510 Constant-Voltage/Constant-Current Battery Charger Up to 1.5A Charge Current for Lithium-Ion, NiCd and NiMH Batteries
LT1512 SEPIC Battery Charger V
IN
Can Be Higher or Lower Than Battery Voltage
LT1769 Constant-Voltage/Constant-Current Battery Charger Up to 2A Charge Current for Lithium-Ion, NiCd and NiMH Batteries
RELATED PARTS
S24 (WIDE) 0996
NOTE 1
0.598 – 0.614*
(15.190 – 15.600)
22 21 20 19 18
17
16 15
1
23
4
5
6
78
0.394 – 0.419
(10.007 – 10.643)
910
1314
11 12
2324
0.037 – 0.045
(0.940 – 1.143)
0.004 – 0.012
(0.102 – 0.305)
0.093 – 0.104
(2.362 – 2.642)
0.050
(1.270)
TYP
0.014 – 0.019
(0.356 – 0.482)
TYP
0
° – 8° TYP
NOTE 1
0.009 – 0.013
(0.229 – 0.330)
0.016 – 0.050
(0.406 – 1.270)
0.291 – 0.299**
(7.391 – 7.595)
× 45°
0.010 – 0.029
(0.254 – 0.737)
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
Figure 14. Critical Electrical and Thermal Path Layout
Dimensions in inches (millimeters) unless otherwise noted.
SW Package
24-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
C
IN
C
IN
C
OUT
R
S1
D1
L1
GND
GND
LT1511 • F14
TO
GND
TO
GND
GND
SW
GND
GND
GND
GND
GND
V
CC1
GND
NOTE: CONNECT ALL GND PINS TO EXPANDED PC LANDS FOR PROPER HEAT SINKING
