LT8253/LT8253A

4

Rev. 0

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Note 1. Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2. The LT8253E/LT8253AE are guaranteed to meet performance

specifications from 0°C to 125°C operating junction temperature.

Specifications over the −40°C to 125°C operating junction temperature

range are assured by design, characterization and correlation with

statistical process controls. The LT8253J/LT8253AJ and LT8253H/

LT8253AH are guaranteed over the −40°C to 150°C operating junction

temperature range. High junction temperatures degrade operating

lifetimes. Operating lifetime is derated at junction temperatures greater

than 125°C.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SYNC/SPRD Clock SYNC Threshold

0.4

1.5

V

NMOS Drivers

TG1, TG2 Gate Driver On-Resistance

Gate Pull-Up

Gate Pull-Down

2.6

1.7

Ω

Ω

BG1, BG2 Gate Driver On-Resistance

Gate Pull-Up

Gate Pull-Down

3

1.2

Ω

Ω

TG Off to BG On Delay Time

LT8253

LT8253A

60

25

ns

ns

BG Off to TG On Delay Time

LT8253

LT8253A

60

25

ns

ns

l

denotes the specifications which apply over the full operating

Note 3. The LT8253/LT8253A include overtemperature protection that

is intended to protect the device during momentary overload conditions.

Junction temperature will exceed 150°C when overtemperature protection

is active. Continuous operation above the specified absolute maximum

operating junction temperature may impair device reliability.