LT3492

4

3492f

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 LT3492E is guaranteed to meet performance specifications

from 0°C to 125°C 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

LT3492I is guaranteed over the full –40°C to 125°C operating junction

temperature range.

OVP1-3 = 0V, unless otherwise noted.

guaranteed by design and/or correlation to static test.

nonrepetitive 1 second transients, and 30V for continuous operation.

Note 5: Gate turn-on/turn-off delay is measured from 50% level of PWM

voltage to 90% level of gate on/off voltage.

Quiescent Current

Switch On Voltage

Switch Current Limit

vs Duty Cycle

0

8

10

14

30

3492 G01

6

4

10

20

40

2

0

12

PWM1-3 = 5V

PWM1-3 = 0V

DUTY CYCLE (%)

0

600

800

1200

1000

80

3492 G03

400

200

0

20

40

60

100

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SHDN Input Low Voltage

0.4

V

SHDN Input High Voltage

1.5

V

SHDN Pin Current

SHDN = 5V, Current Into Pin

65

120

μA

PWM1-3 Input Low Voltage

0.4

V

PWM1-3 Input High Voltage

1.2

V

PWM1-3 Pin Current

Current Into Pin

160

210

μA

Gate Off Voltage (ISP1-3–TG1-3)

ISP1-3 = 60V, PWM1-3 = 0V

0.1

0.3

V

Gate On Voltage (ISP1-3–TG1-3)

ISP1-3 = 60V

5.5

6.5

7.5

V

Gate Turn-On Delay

110

ns

Gate Turn-Off Delay

110

ns

TYPICAL PERFORMANCE CHARACTERISTICS

SWITCH CURRENT (mA)

0

300

400

600

500

800

3492 G02

200

100

0

200

400

600

1000