LT4250 LINER [Linear Technology], LT4250 Datasheet - Page 24

• Manufacturer Part Number: LT4250
• Description: Negative Voltage Hot Swap Controllers in SOT-23
• Manufacturer: LINER [Linear Technology]

LTC4251/LTC4251-1/
LTC4251-2
Typical applicaTions
relaTeD parTs
PART NUMBER
LT1640AH/LT1640AL
LT1641-1/LT1641-2
LTC1642
LTC1921
LT4250
LTC4252-1/ LTC4252-2
LTC4253
24
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
Figure 16. –48V/5A Application with Reverse SENSE Pin Limiting and Push-Reset at TIMER Pin
–48RTN
DESCRIPTION
Negative High Voltage Hot Swap Controllers in SO-8
Positive High Voltage Hot Swap Controllers in SO-8
Fault Protected Hot Swap Controller
Dual – 48V Supply and Fuse Monitor
–48V Hot Swap Controller in SO-8
Negative Voltage Hot Swap Controller in MSOP
Negative Voltage Hot Swap Controller with
3-Output Sequencer
●
–48RTN
(SHORT PIN)
–48V
(SHORT PIN)
FAX: [phone]
–48V
–48RTN
–48RTN
**DIODES, INC.
†RECOMMENDED FOR HARSH ENVIRONMENTS
**DIODES, INC.
†RECOMMENDED FOR HARSH ENVIRONMENTS
34.8k
442k
32.4k
402k
1%
1%
R1
R2
1%
1%
R1
R2
Figure 17. Power-Limited Circuit Breaker Application
●
C1
10nF
C1
10nF
www.linear.com
D
DDZ13B**
PUSH-
RESET
IN
D
DDZ13B**
†
IN
†
4
S1
5
C
220nF
T
UV/OV
TIMER
LTC4251-1
V
V
5
4
C
82nF
IN
EE
SENSE
T
3
2
R
10k
500mW
GATE
UV/OV
TIMER
IN
LTC4251
COMMENTS
Negative High Voltage Supplies from –10V to –80V
Supplies from 9V to 80V, Latched Off/Autoretry
3V to 16.5V, Overvoltage Protection up to 33V
±1V UV and ±1.5V OV Threshold Accuracy, ± 200V Transient
Protection, Drives Three Optoisolators for Status
Active Current Limiting, Supplies from –20V to –80V
Fast Active Current Limiting with Drain Accelerated Response,
Supplies from –15V
Fast Active Current Limiting with Drain Accelerated Response,
Supplies from –15V
V
V
6
EE
1
IN
SENSE
3
2
R
10k
500mW
GATE
IN
C
1µF
IN
6
1
C
1µF
R3
31.6k
IN
D1
BZX84C36
22
R4
R
10
22nF
10
C
C
22nF
C
22
R
C
R3
C
C
100µF
100µF
C
L
C
L
3
+
4
3
4
+
1
2
Q1
IRF540
425112 TA03
R
0.01
1
2
425112 TA04
Q1
IRF540S
V
R
0.02
 LINEAR TECHNOLOGY CORPORATION 2001
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LT 0312 REV C • PRINTED IN USA
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