Datasheet

LTC4252B-1/LTC4252B-2
LTC4252C-1/LTC4252C-2
32
4252b12f
APPLICATIONS INFORMATION
UV/OV
V
EE
V
IN
SENSESS
TIMER
GATE
DRAIN
LTC4252B-1
R1
402k
R2
32.4k
C
T
0.33µF
C
SS
68nF
C
C1
22nF
R
C1
10Ω
Q1
IRF530S
RS
0.02Ω
R
IN1
3 × 1.8k IN SERIES
1/4W EACH
1
7
8
2
6
5
3
4
C1
10nF
C
IN
1µF
Hot Swap SECTION
DIODE-OR CIRCUIT FOR CHANNEL A
–48RTN
–48V A
R
D
1M
LOAD
MODULE
UV
V
EE
V
IN
SENSE
OV
R5
560Ω
SS
TIMER
PWRGD
GATE
DRAIN
LTC4252B-2
1
9
2
10
Q6
FDV301N
Q5
FDV301N
Q2
IRF530S
Q4
BSS131
C
IN2
1µF
R
IN2
3 × 1.8k IN SERIES
1/4W EACH
3
8
7
4
6
5
R
C2
10µ
R3
12k
R4
150Ω
C
C2
22nF
DIODE-OR CIRCUIT FOR CHANNEL B
–48V B
UV
V
EE
V
IN
SENSE
OV
R8
560Ω
SS
TIMER
PWRGD
GATE
DRAIN
LTC4252B-2
1
9
2
10
Q9
FDV301N
Q8
FDV301N
Q3
IRF530S
Q7
BSS131
C
IN3
1µF
R
IN3
3 × 1.8k IN SERIES
1/4W EACH
3
8
7
4
6
5
R
C3
10Ω
R6
12k
R7
150Ω
C
C3
22nF
4252B12 F22
D
IN1
†
DDZ13B
**
D
IN3
†
DDZ13B
**
D
IN2
†
DDZ13B
**
**DIODES, INC
†
RECOMMENDED FOR HARSH ENVIRONMENTS
Figure 22. –48V/2.5A Diode-OR Application