LTC4414 - 36V, Low Loss PowerPath Controller for Large PFETs

The wide supply operating range supports operation from one to eight Li-Ion cells in series. The low quiescent current (30µA typical) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection.

The STAT pin can be used to enable an auxiliary P-channel MOSFET power switch when an auxiliary supply is detected. This pin may also be used to indicate to a microcontroller that an auxiliary supply is connected. The control (CTL) input enables the user to force the primary MOSFET off and the STAT pin low.

The LTC4414 is available in a low profile 8-lead MSOP package.

Features

Designed Specifically to Drive Large QG PFETs
Very Low Loss Replacement for Power Supply OR’ing Diodes
3.5V to 36V AC/DC Adapter Voltage Range
Minimal External Components
Automatic Switching Between DC Sources
Low Quiescent Current: 30µA
3V to 36V Battery Voltage Range
Limited Reverse Battery Protection
MOSFET Gate Protection Clamp
Manual Control Input
Space Saving 8-Lead MSOP Package

Typical Application

Applications

High Current Power Path Switch
Industrial and Automotive Applications
Uninterruptable Power Supplies
Logic Controlled Power Switch
Battery Backup Systems
Emergency Systems with Battery Backups

Packaging

Order Information

Part Number	Package	Temp	Price(1-99)	Price (1k)*
LTC4414EMS8#PBF	MS-8	E	$2.64	$1.85
LTC4414EMS8#TRPBF	MS-8	E		$1.91
LTC4414IMS8#PBF	MS-8	I	$2.93	$2.05
LTC4414IMS8#TRPBF	MS-8	I		$2.11

Demo Boards

Part Number	Description	Price
DC1635A	LTC4412 / LTC4414 Demo Board u VIN1=2.5V to 36V / VIN2= 5V to 36V , V OUT1 @ 2A / V OUT2 @ 8A	$75.00