LT4250LCS8 Linear Technology, LT4250LCS8 Datasheet - Page 12

• Manufacturer Part Number: LT4250LCS8
• Description: IC CONTRLR HOTSWAP NEG 48V 8SOIC
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LT4250LCS8

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: -20 V ~ -80 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Family Name: LT4250L
• Package Type: SOIC N
• Operating Supply Voltage (min): -20V
• Operating Supply Voltage (max): -80V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Product Depth (mm): 3.99mm
• Product Height (mm): 1.5mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT4250L/LT4250H
APPLICATIONS INFORMATION
12
–48V RTN
–48V RTN
(SHORT PIN)
–48V
(SHORT PIN)
–48V RTN
–48V
–48V RTN
*
* DIODES INC. SMAT70A
* DIODES INC. SMAT70A
*
6.49k
549k
R4
R5
R6
10k
1%
1%
1%
R4
R5
R6
Figure 14. Using PWRGD to Drive an Optoisolator
3
2
3
2
UV
OV
Figure 13. Active Low Enable Module
LT4250L
UV
OV
3
ΔV
V
EE
GATE
4
–
+
1
0.02Ω
V
5%
GH
3
R1
+
–
GATE
V
4
1
V
EE
SENSE
2
DL
R1
4
5
+
+
–
–
2
SENSE
C1
470nF
25V
4
5
LT4250L
GATE
V
DD
IRF530
8
Q1
6
R2
10Ω
5%
GATE
C1
1k, 5%
R3
Q1
V
DD
6
R2
8
V
15nF
100V
PWRGD
EE
C2
Q2
R3
DRAIN
PWRGD
DRAIN
7
C2
C3
1
7
4250 F13
1
+
MOC207
ENABLE MODULE
R7
51k
5%
ACTIVE LOW
V
V
ON/OFF
IN
IN
PWRGD
100μF
100V
+
–
C3
V
V
OUT
OUT
+
4250 F14
+
–
4250lhfa