Data Sheet

LT8615

analog.com

Rev 0

5 of 31

(TJ = -40°C to +150°C, unless otherwise noted. Typical values are at TA. = 25°C. All voltages are referenced to GND,

unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS/COMMENTS

MIN

TYP

MAX

UNITS

EN/UV Pin Threshold

VEN

EN/UV Rising

0.99

1.05

1.11

V

EN/UV Hysteresis

50

mV

EN/UV Pin Current

IEN

VEN/UV = 2V

400

nA

PG Upper Threshold

Offset from VFB

PGH

VFB Rising

5.0

7.5

10.0

%

PG Lower Threshold

Offset from VFB

PGL

VFB Falling

5.5

8.0

10.5

%

PG Hysteresis

PGHYS

0.5

%

PG Leakage

IPG-LKG

VPG = 42V

-200

+200

nA

PG Pull-Down

Resistance

RPG

VPG = 0.1V

500

1200

Ω

SYNC Threshold

VSYNC

SYNC DC and Clock Low Level

Voltage

0.4

0.9

V

SYNC Clock High Level Voltage

1.3

1.5

SYNC DC High Level Voltage

2.2

2.7

3.2

TR/SS Source Current

ISS

1.0

2.5

4.0

μA

TR/SS Pull-Down

Resistance

RSS

Fault Condition, TR/SS = 0.1V, TA =

+25°C

300

900

Ω

Spread-Spectrum

Modulation Frequency

fSSFM

VSYNC = 3.3V, TA = +25°C

1

3

6

kHz

.