LTC1421-2.5_15 Datasheet, PDF (23/24 Pages) Linear Technology – Hot Swap Controller

LTC1421/LTC1421-2.5
APPLICATIONS INFORMATION
5V
3.3V
BACKPLANE PC BOARD
R2
0.005Ω
Q2
1 ^1W 2 ^MTB50N06E
5V
3
R1
0.005Ω
Q1
1 ^1W 2 ^MTB50N06E
4
0.047µF
R3
1M
5%,1/8W
+
8A
C_LOAD
3.3V
3
4
+
8A
C_LOAD
C5
1k
10k
0.1µF
25V
R5
23 22 21 20 19 18 17 16
C2
330k
1
24
0.1µF
10
24V
R4
1k
11
5%
1%
1/16W
V_CC
C1
4
1µF
5
16V
3
S1
2
LTC1421
6
1/16W
7
8
14
13
1µF
15
µP
RESET
GND
12
9
R6
200k
1%
1/16W
1421 F26
Figure 26. Power-Up and Power-Down Sequence Controller
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
5.20 – 5.38**
(0.205 – 0.212)
G Package
24-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
1.73 – 1.99
(0.068 – 0.078)
8.07 – 8.33*
(0.318 – 0.328)
24 23 22 21 20 19 18 17 16 15 14 13
0° – 8°
0.13 – 0.22
(0.005 – 0.009)
0.55 – 0.95
(0.022 – 0.037)
NOTE: DIMENSIONS ARE IN MILLIMETERS
0.65
(0.0256)
BSC
0.25 – 0.38
(0.010 – 0.015)
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.152mm (0.006") PER SIDE
**DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.254mm (0.010") PER SIDE
0.05 – 0.21
(0.002 – 0.008)
7.65 – 7.90
(0.301 – 0.311)
1 2 3 4 5 6 7 8 9 10 11 12 ^{G24 SSOP 1098}
0.291 – 0.299**
(7.391 – 7.595)
0.010
(0.254
–
–
0.029
0.737)
×
45°
0.093 – 0.104
(2.362 – 2.642)
SW Package
24-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
0.598 – 0.614*
(15.190 – 15.600)
0.037 – 0.045
(0.940 – 1.143)
24 23 22 21 20 19 18 17 16 15 14 13
0° – 8° TYP
0.050
0.009 – 0.013
(0.229 – 0.330)
NOTE:
NOTE 1
0.016 – 0.050
(0.406 – 1.270)
(1.270)
BSC
0.014 – 0.019
(0.356 – 0.482)
TYP
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
NOTE 1
0.004 – 0.012
(0.102 – 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
0.394 – 0.419
(10.007 – 10.643)
1 2 3 4 5 6 7 8 9 10 11 12
S24 (WIDE) 1098
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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