Position: Home  > All Categories> Integrated Circuits (ICs) > LT4256-1

LT4256-1

Features: ·Allows Safe Board Insertion and Removal from a Live Backplane·Controls Supply Voltage from 10.8V to 80V·Foldback Current Limiting·Overcurrent Fault Detection·Drives an External N-Channel MOSFET·Programmable Supply Voltage Power-Up Rate·Undervoltage Protection·Latch Off Operation Mode (L...

product image

LT4256-1 Picture
See larger image
SeekIC No. : 004401171 Detail

LT4256-1: Features: ·Allows Safe Board Insertion and Removal from a Live Backplane·Controls Supply Voltage from 10.8V to 80V·Foldback Current Limiting·Overcurrent Fault Detection·Drives an External N-Channel ...

LT4256-1 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
LT4256-1
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/12/25

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

·Allows Safe Board Insertion and Removal from a Live Backplane
·Controls Supply Voltage from 10.8V to 80V
·Foldback Current Limiting
·Overcurrent Fault Detection
·Drives an External N-Channel MOSFET
·Programmable Supply Voltage Power-Up Rate
·Undervoltage Protection
·Latch Off Operation Mode (LT4256-1)
·Automatic Retry (LT4256-2)
·Available in an 8-Pin SO Package


Application

·Hot Board Insertion
·Electronic Circuit Breaker/Power Bussing
·Industrial High Side Switch/Circuit Breaker
·24V/48V Industrial/Alarm Systems
·Ideally Suited for 12V, 24V and 48V Distributed Power Systems
·48V Telecom Systems


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC) .............................. 0.3 to 100V
SENSE, PWRGD ....................................... 0.3 to 100V
GATE (Note 2) ............................... 0.3V to VCC + 10V
Maximum Input Current (GATE) ......................... 200A
FB, UV ........................................................ 0.3 to 44V
TIMER .................................................... 0.3V to 4.3V
Maximum Input Current (TIMER) ....................... 100A
Operating Temperature
LT4256C ................................................. 0°C to 70°C
LT4256I ............................................. 40°C to 85°C
Storage Temperature Range ............ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C


Description

The LT®4256-1/LT4256-2 are high voltage Hot SwapTM controllers that allow a board to be safely inserted and removed from a live backplane. An internal driver drives an external N-channel MOSFET switch to control supply voltages ranging from 10.8V to 80V.

The LT4256-1/LT4256-2 features an adjustable analog foldback current limit. If the supply remains in current limit for more than a programmable time, the N-channel MOSFET shuts off and the PWRGD output asserts low. The LT4256-2 automatically restarts after a time-out delay. The LT4256-1 latches off until the UV pin is cycled low.

The PWRGD output indicates when the output voltage rises above a programmed level. An external resistor string from VCC provides programmable undervoltage protection.

The LT4256 can be used as an upgrade to LT1641 designs. See Table 1 on page 14 for upgraded specifications.

The LT4256-1 and LT4256-2 are available in an 8-pin SO package that is pin compatible with the LT1641.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Tools
TCP202
G084SN05 V.3
Batteries, Chargers, Holders
ICR18650-28A
ICR18650-26F/h
Cables, Wires
821-0814-a
415-0100-150
Semiconductor Modules
2DI300A-050-03
7MBR25SA-120-50
Kits
IT243
UVSC-110-4E1
Integrated Circuits (ICs)
TA8435H
1MB12-140
View more