Datasheet

Description

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2 Connector Functionality .................................................................................................... 3

3 Test Points ................................................................................................................... 3

4 Bill of Materials............................................................................................................. 13

1 Description

The EVM design allows for several common application designs: a 12-V system with latched or automatic

retry and a 48-V system with latched or automatic retry. The 12-V versions feature Texas Instruments new

line of high-performance power MOSFETs. The EVM also provides a USB interface for the I2C™ current

monitor when using the TPS2480/1 GUI on a PC.

1.1 Features

• General TPS2480/1 Device Features

– Programmable current limiting and power limiting for complete SOA protection

– Programmable fault timer to eliminate nuisance shutdowns

– Programmable undervoltage lockout

– Power good

– Latched operation mode (TPS2480)

– Automatic retry mode (TPS2481)

• EVM Configurable Options

– TPS2481EVM-001 (12 V, 480 W, auto retry)

– TPS2480EVM-002 (12 V, 480 W, latched)

– High-voltage applications (48 V, 400 W, auto retry or latched)

NOTE: The high-voltage version is not orderable. For details, see the schematic and bill of

materials.

1.2 Applications

• Any live backplane insertion application

– Servers

– Telecommunications

1.3 Electrical Specifications

Table 1. TPS2480/1EVM Electrical and Performance Specifications at 25°C

Characteristic TPS2481EVM-001 High-Voltage Application

TPS2480EVM-002

Maximum input voltage 15 V 57 V

Input voltage (operating) 10 V 14 V 42 V to 54 V

Turnon voltage (maximum) 9 V 35.8 V

Turnoff voltage (minimum) 7.9 V 31.6 V

Nominal current 40 A 8.3 A

Trip point current 45 A to 55 A 9 A to 11 A

Operating temperature –40ºC to 85°C –40°C to 85°C

TPS2480 fault timer trip time (nominal) 528 µs 240 µs

TPS2481 fault timer period (nominal) 4.4 ms 2.0 ms

Program power limit (Vprog/2*R1) 200 W 400 W

TPS2480 and TPS2481 Evaluation Module SLUU370A–January 2010–Revised June 2010

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