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LINEAR TECHNOLOGY  LTC4417IUF#PBF  Special Function IC, Priority Power Supply Controller, 2.5 V to 36 V in, QFN-24

LINEAR TECHNOLOGY LTC4417IUF#PBF
Manufacturer Part No:
LTC4417IUF#PBF
Order Code:
2293164
Technical Datasheet:
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Product Overview

The LTC4417IUF#PBF is a prioritized PowerPath Controller that connects one of three valid power supplies to a common output based on priority. Priority is defined by pin assignment with V1 assigned the highest priority and V3 the lowest priority. A power supply is defined as valid when its voltage has been within its overvoltage (OV) and under-voltage (UV) window continuously for at least 256ms. If the highest priority valid input falls out of the OV/UV window, the channel is immediately disconnected and the next highest priority valid input is connected to the common output. Two or more LTC4417s can be cascaded to provide switchover between more than three inputs. The LTC4417 incorporates fast non-overlap switching circuitry to prevent both reverse and cross conduction while minimizing output droop. The gate driver includes a 6V clamp to protect external MOSFETs. A controlled output ramp feature minimizes start-up inrush current.
  • Selects highest priority supply from three inputs
  • Blocks reverse and cross conduction currents
  • -42V Protection against reverse battery connection
  • Fast switchover minimizes output voltage droop
  • Low 28µA operating current
  • <1µA Current draw from supplies less than VOUT
  • 1.5% Input overvoltage/under-voltage protection
  • Adjustable overvoltage/under-voltage hysteresis
  • P-channel MOSFET gate protection clamp
  • Cascadable for additional input supplies

Product Information

IC Function:
Priority Power Supply Controller
Supply Voltage Min:
2.5V
Supply Voltage Max:
36V
IC Package Type:
QFN
No. of Pins:
24Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial
  • Portable Devices
  • Computers & Computer Peripherals
  • Power Management

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000454

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