LTC4416/LTC4416-1 - 36V, Low Loss Dual PowerPath Controllers for Large PFETs

The LTC4416 integrates two interconnected PowerPath controllers with soft switchover control. The “soft-off” switchover permits the users to transfer between two dissimilar voltages without excessive voltage undershoot (or VDROOP) in the output supply. The LTC4416/LTC4416-1 also contain a “fast-on” feature that dramatically increases gate drive current when the forward input voltage exceeds 25mV. The LTC4416 “fast off” feature is engaged when the sense voltage exceeds the input voltage by 25mV. The LTC4416-1 enables the fast off under the same conditions and when the other external P-channel device is selected using the enable pins.

The wide operating supply range supports operation from one to eight Li-Ion cells in series. The low quiescent current (35μA per channel) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection.

The LTC4416/LTC4416-1 are available in low profi le 10-lead MSOP packages.

Features
  • Designed Specifically to Drive Large and Small QG PFETs
  • Very Low Loss Replacement for Power Supply OR’ing Diodes
  • Wide Operating Voltage Range: 3.6V to 36V
  • –40°C to 125°C Operating Temperature Range
  • Reverse Battery Protection
  • Automatic Switching Between DC Sources
  • Low Quiescent Current: 35μA per Channel
  • Load Current Sharing
  • MOSFET Gate Protection Clamp
  • Precision Input Control Comparators for Setting Switchover Threshold Points
  • Open-Drain Feedback Points for Customer Specified Hysteresis Control
  • Minimal External Components
  • Space Saving 10-Lead MSOP Package
Typical Application


Applications
  • High Current PowerPath Switch
  • Industrial and Automotive Applications
  • Uninterruptible Power Supplies
  • Logic Controlled Power Switch
  • Battery Backup System
  • Emergency Systems with Battery Backups
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC4416EMS-1#PBFMS-10E$3.78$2.45
LTC4416EMS-1#TRPBFMS-10E$2.51
LTC4416EMS#PBFMS-10E$3.78$2.45
LTC4416EMS#TRPBFMS-10E$2.51
LTC4416IMS-1#PBFMS-10I$4.56$2.95
LTC4416IMS-1#TRPBFMS-10I$3.01
LTC4416IMS#PBFMS-10I$4.56$2.95
LTC4416IMS#TRPBFMS-10I$3.01
Demo Boards
Part NumberDescriptionPrice
DC1059ALTC4416EMS Demo Board | Dual PowerPath Controller$100.00
Datasheet
Design Note
Reliability Data
Press Release
LTspice
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