LTC1642IGN Ver la hoja de datos (PDF) - Linear Technology
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LTC1642IGN Datasheet PDF : 16 Pages
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LTC1642
TYPICAL APPLICATIO
12V Hot Swap Circuit for InfiniBand Modules
InfiniBand
BACKPLANE
VB_In
LONG
InfiniBand
MODULE
R2
Q1
R12
84.5k
R6
1%
127k
1%
R3
100Ω
R4
330Ω
5%
D2
1N4705
18V
R9
C2
681k
0.047µF
1%
VBxEn_L
VB_Ret
R5
SHORT 10.2k 1%
16
15
9 VCC SENSE
OV
11 COMP+
14
GATE
LTC1642
10
COMPOUT
5
RESET
7
FB
6
FAULT
R11
4
ON
12.4k
1%
REF COMP– CRWBR RST TMR BRK TMR GND
C7
0.01µF
C5 13
12
0.01µF
C6
1
3
C1*
0.033µF
2
8
D1*
1N4148
R8
30k
100k
1%
LONG
0.1µF
C4
0.033µF
LOCAL POWER
10k
ENABLE
*INSTALL D1 FOR AUTOMATIC RESTART
IF USING D1, INCREASE C1
START-UP DELAY IS 20ms TYPICAL
CIRCUIT-BREAKER DELAY IS 1ms TYPICAL
MODULE POWER
25W
50W
R2
0.015Ω,5%
0.007Ω,5%
Q1
FDS6612†
FDS6680†
†FAIRCHILD
(408) 822-2126
DC/DC
CONVERTER
INPUT
UV
TO CONVERTER'S
RUN/SS
TO DC/DC RETURN
1642 TA02
PACKAGE DESCRIPTIO
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.015 ± .004
(0.38 ± 0.10)
× 45°
.007 – .0098
(0.178 – 0.249)
0° – 8°
TYP
.0532 – .0688
(1.35 – 1.75)
.004 – .0098
(0.102 – 0.249)
.189 – .196*
(4.801 – 4.978)
16 15 14 13 12 11 10 9
.009
(0.229)
REF
.045 ±.005
.016 – .050
(0.406 – 1.270)
.008 – .012
(0.203 – 0.305)
TYP
.0250
(0.635)
BSC
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
.254 MIN
.150 – .165
NOTE:
1. CONTROLLING DIMENSION: INCHES
2.
DIMENSIONS
ARE
IN
INCHES
(MILLIMETERS)
3. DRAWING NOT TO SCALE
*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
1 234 5678
.0165 ± .0015
.0250 BSC
RECOMMENDED SOLDER PAD LAYOUT
GN16 (SSOP) 0204
RELATED PARTS
PART NUMBER
LTC1421
LTC4211
LT4250
LTC1643
DESCRIPTION
Hot Swap Controller
Hot Swap Controller with Multifunction Current Control
Negative Voltage Hot Swap Controller in SO-8
PCI-Bus Hot Swap Controller
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
COMMENTS
Two Supplies from 3V to 12V and –12V
Single Supply from 2.5V to 16.5V, MSOP Package
– 48V Supplies, Active Current Limit
3.3V, 5V, ±12V Supplies for PCI Bus, Active Current Limit
1642fb
LT/LT 0805 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1999
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