ISL99125B, ISL99135B

7

FN8848.4

January 24, 2017

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Tri-State Shutdown Window

2.2

2.8

V

PS4 Exit Latency

15

µs

SWITCHING TIME

GH Turn-On Propagation Delay

20

ns

GH Turn-Off Propagation Delay

18

ns

GL Turn-On Propagation Delay

20

ns

GL Turn-Off Propagation Delay

25

ns

GH/GL Exit Tri-State Propagation Delay

35

ns

PWM Tri-State Shutdown Hold-Off Time

100

175

250

ns

Minimum GL On-Time in DCM

350

ns

BOOTSTRAP DIODE

Forward Voltage

0.43

0.55

0.65

V

NOTES:

6. Compliance to datasheet limits is assured by one or more methods: production test, characterization, and/or design.

operating temperature range, -40°C to +85°C. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

FIGURE 6. TIMING DIAGRAM

PWM

GH

GL

TABLE 2. GATE DRIVE TRUTH TABLE

FCCM

PWM

GL

GH

Tri-State

X

L

L

LL

H (Note 7)L

LH

L

H

HL

H

L

HH

L

H

NOTE:

7. The LG stays high until inductor current drops to zero.