LTC4253 LINER [Linear Technology], LTC4253 Datasheet - Page 34

• Manufacturer Part Number: LTC4253
• Manufacturer: LINER [Linear Technology]

LTC4253/LTC4253A
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LT1640AH/LT1640AL
LT1641-1/LT1641-2
LTC1642A
LT4250
LTC4251/LTC4251-1/
LTC4251-2
LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
34
RESET
(LONG PIN)
– 48V RTN
(LONG PIN)
– 48V RTN
(SHORT PIN)
– 48V
(LONG PIN)
Figure 17. –48V/2.5A Application with Foldback Current Limiting and Transistor Enabled Sequencing without Feedback
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
30.1k
392k
1%
1%
R2
R1
R8
47k
●
DESCRIPTION
Negative High Voltage Hot Swap Controllers in SO-8
Positive High Voltage Hot Swap Controllers in SO-8
Fault Protected Hot Swap Controller
–48V Hot Swap Controller
–48V Hot Swap Controllers in SOT-23
–48V Hot Swap Controllers in MS8/MS10
FAX: [phone]
C1
10nF
0.1μF
C
C
20k(1/4W)/2
SS
SQ
33nF
C
1μF
R
10k
OV
UV
RESET
SS
SQTIMER
TIMER
T
IN
V
IN
LTC4253A
●
EN2 EN3
V
www.linear.com
EE
PWRGD1
PWRGD2
PWRGD3
SENSE
DRAIN
GATE
DDZ13B*
D
IN
V
IN
††
C
1μF
IN
3.3M
R
D
R5
100k
†
R3
38.3k
10nF
22Ω
COMMENTS
Negative High Voltage Supplies from –10V to –80V
Supplies from 9V to 80V, Autoretry/Latched Off
3V to 16.5V, Overvoltage Protection up to 33V
Active Current Limiting, Supplies from –20V to –80V
Fast Active Current Limiting, Supplies from –15V
Fast Active Current Limiting, Supplies from –15V, Drain
Accelerated Response, 1% Accurate UV/OV Thresholds
R4
C
R6
100k
C
†
R
10Ω
C
R7
100k
†
+
Q1
IRF530S
R
0.02Ω
S
0.1μF
C2
100μF
C3
*DIODES, INC.
†
††
FMMT493
RECOMMENDED FOR HARSH ENVIRONMENTS.
© LINEAR TECHNOLOGY CORPORA TION 2002
MODULE 1
EN
POWER
V
OUT
LT 0312 REV E • PRINTED IN USA
MODULE 2
EN
POWER
MODULE 3
EN
4253 F17
POWER
425353afe