TPS2491

Features:

· Programmable Power Limiting and Current Limiting for Complete SOA Protection
· Wide Operating Range: +9 V to +80 V
· Latched Operation (TPS2490) and Automatic Retry (TPS2491)
· High-side Drive for Low-RDS(on) External N-channel MOSFET
· Programmable Fault Timer to Protect the MOSFET and Eliminate Nuisance Shutdowns
· Power Good Open-Drain Output for Downstream DC/DC Coordination
· Enable can be used as a Programmable Undervoltage Lockout or Logic Control
· Small, Space-saving 10-pin MSOP Package


Application

· Server Backplanes
· Storage Area Networks (SAN)
· Medical Systems
· Plug-in Modules
· Base Stations


Pinout




Specifications

		UNIT
Input voltage range, VCC, SENSE, EN, OUT	-0.3 to 100	V
Output voltage range, GATE, PG	-0.3 to 100	V
Input voltage range, PROG	-0.3 to 6	V
Output voltage range, TIMER, VREF	-0.3 to 6	V
Sink current, PG	10	mA
Source current, VREF	0 to 2	mA
Sink Current, PROG	2	mA
ESD - human body model	2	kV
ESD - charged device model	500	V
Maximum junction temperature, TJ	150	°C
Storage temperature, TST	ñ65 to 150	°C
temperature 1.6 mm (1/16 inch) from case for 10 seconds	260	°C

Description

The TPS2490/91 is easy-to-use, positive high voltage, 10-pin Hot Swap Power Managerô devices that safely drive an external N-channel MOSFET switch. The power limit and current limit (both are adjustable and independent of each other) ensure that the external MOSFET operates inside a selected safe operating area (SOA) under the harshest operating conditions. Applications include inrush current limiting, electronic circuit
breaker protection, controlled load turn-on, interfacing to down-stream dc-to-dc converters, and power feed protection. These devices are available in a small, space-saving 10-pin MSOP package and significantly reduce the number of external devices, saving precious board space. The TPS2490/91 is supported by application notes, an evaluation module, and a design tool.