BD9428 datasheet(4/29 Pages) ROHM

Part #	BD9428

Description	White LED Driver for large LCD Panels (DCDC Converter type)

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Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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Datasheet

4/25

TSZ02201-0F1F0C100290-1-2

16.Oct.2013 Rev.001

www.rohm.com

TSZ22111・15・001

BD9428

●Electrical Characteristics (Unless otherwise noted, Ta = 25

oC, VCC=24V)

Parameter

Symbol

Limit

Unit

Condition

Min.

Typ.

Max.

[STB Block]

STB pin high-level voltage

STBH

2

-

35

V

VSTB=SWEEP UP

STB pin low-level voltage

STBL

-0.3

-

0.8

V

VSTB=SWEEP DOWN

STB pin pull-down resistance

RSTB

500

1000

1500

k

Ω

VSTB=3V

[PWM Block]

PWM pin high-level voltage

PWMH

2

-

35

V

VPWM=SWEEP UP

PWM pin low-level voltage

PWML

-0.3

-

0.8

V

VPWM= SWEEP DOWN

PWM pin pull-down resistance

RPWM

180

300

420

k

Ω

VPWM=3V

[Failure Indication Block (Open Drain)]

FAIL pin on resistance

RFAIL

250

500

1000

Ω

VFAIL=1V

FAIL pin leakage current

ILFAIL

-2

0

2

uA

VFAIL=5V

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