LT1769 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LT1769
Linear Technology
'LT1769' PDF : 16 Pages View PDF
LT1769
PACKAGE DESCRIPTION
3.86
(.152)
FE Package
20-Lead Plastic TSSOP (4.4mm)
(Reference LTC DWG # 05-08-1663)
Exposed Pad Variation CB
6.60 ±0.10
4.50 ±0.10
SEE NOTE 4
2.74
(.108)
0.45 ±0.05
1.05 ±0.10
0.65 BSC
RECOMMENDED SOLDER PAD LAYOUT
4.30 – 4.50*
(.169 – .177)
0° – 8°
1.20
(.047)
MAX
6.40 – 6.60*
(.252 – .260)
3.86
(.152)
20 1918 17 16 15 14 1312 11
0.09 – 0.20
(.0036 – .0079)
0.45 – 0.75
(.018 – .030)
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2.
DIMENSIONS
ARE
IN
MILLIMETERS
(INCHES)
3. DRAWING NOT TO SCALE
0.65
(.0256)
BSC
0.195 – 0.30
(.0077 – .0118)
0.05 – 0.15
(.002 – .006)
4. RECOMMENDED MINIMUM PCB METAL SIZE
FOR EXPOSED PAD ATTACHMENT
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.150mm (.006") PER SIDE
2.74 6.40
(.108) BSC
1 2 3 4 5 6 7 8 9 10 FE20 (CB) TSSOP 0203
0.015
(0.38
±
±
0.004
0.10)
×
45°
0.0075 – 0.0098
(0.191 – 0.249)
GN Package
28-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
0° – 8° TYP
0.053 – 0.069
(1.351 – 1.748)
0.004 – 0.009
(0.102 – 0.249)
0.386 – 0.393*
(9.804 – 9.982)
28 27 26 25 24 23 22 21 20 19 18 17 1615
0.033
(0.838)
REF
0.016 – 0.050
(0.406 – 1.270)
0.008 – 0.012
(0.203 – 0.305)
* 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
0.0250
(0.635)
BSC
0.229 – 0.244
(5.817 – 6.198)
0.150 – 0.157**
(3.810 – 3.988)
1 2 3 4 5 6 7 8 9 10 11 12 13 14
GN28 (SSOP) 1098
RELATED PARTS
PART NUMBER
LT1372/LT1377
LT1376
LT1505
LT1510
LT1511
LT1512/LT1513
LTC1729
DESCRIPTION
500kHz/1MHz Step-Up Switching Regulators
500kHz Step-Down Switching Regulator
High Current, High Efficiency Battery Charger
Constant-Voltage/Constant-Current Battery Charger
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SMBus Smart Battery Charger
Dual Battery Charger and Selector with SPI Interface
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
COMMENTS
High Frequency, Small Inductor, High Efficiency Switchers, 1.5A Switch
High Frequency, Small Inductor, High Efficiency Switcher, 1.5A Switch
94% Efficiency, Synchronous Current Mode PWM
Up to 1.5A Charge Current for Lithium-Ion, NiCd and NiMH Batteries
Up to 3A Charge Current for Lithium-Ion, NiCd and NiMH Batteries
VIN Can Be Higher or Lower Than Battery Voltage
Preconditioning If Cell < 2.7V, 3hr Time-Out, C/10 Detection, Temp Sensor
Pin, Charger and Battery Detection
94% Efficiency with Input Current Limiting, Up to 8A ICHG
ICHARGE Up to 6A, Fast Charge, Longer Battery Life, Crisis Management
1769fa
LT/TP 1101 1.5K REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1999
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