16
LTC1642
1642fb
© LINEAR TECHNOLOGY CORPORATION 1999
LT/LT 0805 REV B • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LTC1421 Hot Swap Controller Two Supplies from 3V to 12V and –12V
LTC4211 Hot Swap Controller with Multifunction Current Control Single Supply from 2.5V to 16.5V, MSOP Package
LT4250 Negative Voltage Hot Swap Controller in SO-8 –48V Supplies, Active Current Limit
LTC1643 PCI-Bus Hot Swap Controller 3.3V, 5V, ±12V Supplies for PCI Bus, Active Current Limit
TYPICAL APPLICATIO
U
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
12V Hot Swap Circuit for InfiniBand Modules
D2
1N4705
18V
REF COMP
–
CRWBR RST TMR BRK TMR GND
V
CC
SENSE GATE
COMPOUT
RESET
FB
FAULT
ON
OV
COMP
+
LTC1642
13 12 1 3 2 8
16 15 14
10
5
7
6
4
9
11
R3
100Ω
C2
0.047µF
R4
330Ω
5%
R12
84.5k
1%
R6
127k
1%
R5
10.2k 1%
R2 Q1
C7
0.01µF
R11
12.4k
1%
C6
0.1µF
C5
0.01µF
C1*
0.033µF
30k
C4
0.033µF
D1*
1N4148
10k
R9
681k
1%
R8
100k
1%
DC/DC
CONVERTER
INPUT
TO CONVERTER'S
RUN/SS
TO DC/DC RETURN
1642 TA02
VB_In
VBxEn_L
VB_Ret
InfiniBand
BACKPLANE
InfiniBand
MODULE
LOCAL POWER
ENABLE
UV
*INSTALL D1 FOR AUTOMATIC RESTART
IF USING D1, INCREASE C1
START-UP DELAY IS 20ms TYPICAL
CIRCUIT-BREAKER DELAY IS 1ms TYPICAL
†
FAIRCHILD (408) 822-2126
REWOPELUDOM2R1Q
W52%5,Ω510.02
†
166SDF
W05%5,Ω700.00
†
866SDF
LONG
SHORT
LONG
PACKAGE DESCRIPTIO
U
GN16 (SSOP) 0204
12
3
4
5
6
7
8
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
16
15
14
13
.189 – .196*
(4.801 – 4.978)
12 11 10
9
.016 – .050
(0.406 – 1.270)
.015
± .004
(0.38 ± 0.10)
× 45°
0° – 8°
TYP
.007 – .0098
(0.178 – 0.249)
.0532 – .0688
(1.35 – 1.75)
.008 – .012
(0.203 – 0.305)
TYP
.004 – .0098
(0.102 – 0.249)
.0250
(0.635)
BSC
.009
(0.229)
REF
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.150 – .165
.0250 BSC.0165 ± .0015
.045 ±.005
*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
INCHES
(MILLIMETERS)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
