LM2641

www.ti.com

SNVS040B – JANUARY 2000 – REVISED APRIL 2013

Absolute Maximum Ratings

(1) (2) (3)

IN, SW1, and SW2

−0.3 to 31V

FB1 and FB2

−0.3 to 3V

SD, ON/OFF1, ON/OFF2,

2NDFB/FPWM, SYNC, REF,

SS1, SS2, COMP1,

COMP2 and CSL1

LIN

−0.3 to 6V

−0.3 to 9V

Voltage from CBOOT1 to SW1

−0.3 to 5V

and from CBOOT2 to SW2

Voltage from HDRV1 to SW1

−0.3V

and from HDRV2 to SW2

Voltage from CBOOT1 to HDRV1

−0.3V

and from CBOOT2 to HDRV2

Junction Temp.

+150°C

883 mW

−65 to +150°C

Wave

4 sec, 260°C

Infrared

10 sec, 240°C

Vapor Phase

75 sec, 219°C

2 kV

(1)

Unless otherwise specified, all voltages are with respect to the voltage at the GND and PGND pins.

(2)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is specified. Operating Ratings do not imply specified performance limits. For specified performance limits and

associated test conditions, see the Electrical Characteristics tables.

(3)

If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.

(4)

In applications where the output voltage can exceed the absolute maximum rating, a 100

Ω resistor must be placed in series with the

CSH and CSL inputs.

(5)

The Absolute Maximum power dissipation depends on the ambient temperature. The 883 mW rating results from substituting 150°C,

ambient thermal resistance of the package. A

TSSOP. Heat sinking allows the safe dissipation of more power. The Absolute Maximum power dissipation must be derated by 11.04

mW per °C above 70°C ambient. The LM2641 actively limits its junction temperature to about 150°C.

(6)

For detailed information on soldering plastic small-outline packages, refer to (SNOA549) available from TI.

(7)

For testing purposes, ESD was applied using the human-body model, a 100 pF capacitor discharged through a 1.5 k

Ω resistor.

Operating Ratings

(1) (2)

5.5 to 30V

0 to +125°C

(1)

Unless otherwise specified, all voltages are with respect to the voltage at the GND and PGND pins.

(2)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is specified. Operating Ratings do not imply specified performance limits. For specified performance limits and

associated test conditions, see the Electrical Characteristics tables.

Copyright © 2000–2013, Texas Instruments Incorporated

Submit Documentation Feedback

5

Product Folder Links: LM2641