LT4254IGN Linear Technology, LT4254IGN Datasheet - Page 16

• Manufacturer Part Number: LT4254IGN
• Description: IC CTLR HOTSWAP POS 16-SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LT4254IGN

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 10.8 V ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL APPLICATIO
RELATED PARTS
PART NUMBER
LT1641-1/LT1641-2
LTC4211
LTC4251
LTC4252-1/LTC4252-2 Negative 48V Hot Swap Controller in MSOP
LTC4253
LT4256-1
LT4256-2
LT4256-3
LTC4260
LTC4261
LT4254
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
Positive 48V Hot Swap Controller in SO-8
Single Hot Swap Controller with Multifunction Current Control 2.5V to 16.5V, Active Inrush Limiting, Dual Level Cicuit Breaker
Negative 48V Hot Swap Controller in SOT-23
Negative 48V Hot Swap Controller and Supply Sequencer
Positive 48V Hot Swap Controller in SO-8
Positive 48V Hot Swap Controller in SO-8
Positive 48V Hot Swap Controller in GN-16
Positive 48V Hot Swap Controller with I
Negative 48V Hot Swap Controller with I
●
FAX: [phone]
GND
V
CC
0.1µF
(SHORT PIN)
C3
Figure 16. High dV/dT MOSFET Turn-On Protection Circuit
U
●
R1
324k
R2
40.2k
R3
40.2k
www.linear.com
C2
33nF
UV
OV
OPEN
TIMER
V
2
2
CC
C Monitoring
0.033Ω
C Monitoring
LT4254
GND
R5
SENSE
PWRGD
RETRY
GATE
FB
IRF530
UV = 20V
OV = 40V
PWRGD = 18V
Q1
R6
10Ω
R7
100Ω
C1
10nF
COMMENTS
9V to 80V Operation, Active Current Limit, Autoretry/Latchoff
Floating Supply from –15V, Active Current Limiting,
Fast Circuit Breaker
Floating Supply from –15V, Active Current Limiting,
Power Good Output
Floating Supply from –15V, Active Current Limiting,
Enables Three DC/DC Converters
10.8 to 80V Operation, Latch-Off Operation, Improved LT1641-1
10.8 to 80V Operation, Auto Retry Operation, Improved LT1641-2
10.8 to 80V Operation, Open Circuit Detect, Selectable Latch-Off
or Auto Retry
Onboard 8-Bit ADC with I
Onboard 10-Bit ADC with I
D1
CMPZ5241B
11V
IN4148W
R8
140k
R9
40.2k
4254 F16
R4
27k
2
C Interface for Board Monitoring
2
C Interface for Board Monitoring
© LINEAR TECHNOLOGY CORPORATION 2003
C
100µF
L
V
OUT
LT 1205 REV B • PRINTED IN USA
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