Datasheet

LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
36
425212fe
For more information www.linear.com/LTC4252-1
 LINEAR TECHNOLOGY CORPORATION 2001
LT 0613 REV E • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com/LTC4252-1
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LT1640AH/LT1640AL Negative High Voltage Hot Swap Controllers in SO-8 Negative High Voltage Supplies from –10V to – 80V
LT1641-1/LT1641-2 Positive High Voltage Hot Swap Controllers in SO-8 Supplies from 9V to 80V, Latched Off/Autoretry
LTC1642 Fault Protected Hot Swap Controller 3V to 16.5V, Overvoltage Protection up to 33V
LTC4214 Negative Voltage Hot Swap Controller Operates from –6V to –16V
LT4220 Dual Supply Hot Swap Controller ±2.2V to ±16.5V Operation
LT4250 – 48V Hot Swap Controller in SO-8 Active Current Limiting, Supplies from –20V to –80V
LTC4251/LTC4251-1 –48V Hot Swap Controllers in SOT-23 Fast Active Current Limiting, Supplies from –15V
LTC4253 –48V Hot Swap Controller with Sequencer Fast Current Limiting with Three Sequenced Power Good Outputs,
Supplies from –15V
425212 F24
–48RTN
UV/OV
V
EE
V
IN
SENSESS
TIMER GATE
DRAIN
LTC4252-1
R1
402k
1%
R2
32.4k
1%
C
T
150nF
PUSH
RESET
C
SS
27nF
C
C
22nF
–48V
R
S
0.01Ω
Q1
IRF540S
V
OUT
R
C
10Ω
R
IN
2× 5.1k IN SERIES
1/4W EACH
1
7
8
2
6
5
3
4
C1
10nF
C
IN
1µF
C
L
100µF
–48RTN
(SHORT PIN)
+
R
D
1M
R3
22Ω
LOAD
**DIODES, INC
†
RECOMMENDED FOR HARSH ENVIRONMENTS
D
IN
†
DDZ13B
**
Figure 24. –48V/5A Application