BD9412F datasheet(6/28 Pages) ROHM

Part #	BD9412F

Description	PFC Direct current resonance type White LED Driver for Large LCD

Download	28 Pages

Scroll/Zoom	100%

Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

Logo

6 / 28 page

6/24

TSZ02201-0F5F0C100070-1-2

12.Aug.2015 Rev.002

www.rohm.com

TSZ22111 • 15 • 001

BD9412F

Pin Description

Pin No.

Pin Name

IN/OUT

Function

Rating [V]

1

VCC

IN

Power Supply Pin for IC (Built-In UVLO Function)

-0.3 to +20

2

STB

IN

Power ON/OFF Control Pin for IC

Power OFF when STB=L and Power ON when STB=H.

-0.3 to +20

3

GND

IN

Ground Pin for Internal Signal in IC

-

4

RT

OUT

Drive Frequency Setting Pin

Basic Frequency is set by the resistor between RT and

GND and Drive Frequency Modulation Range is set by

the resistor between RT and FB.

-0.3 to +5.5

5

FB

OUT

Error Amplifier Output pin for LED Current feedback and

LED Voltage feedback

-0.3 to +5.5

6

IS

IN

Error Amplifier Input pin for LED Current feedback

-0.3 to +5.5

7

VS

IN

Error Amplifier Input pin for LED Open Voltage feedback

-0.3 to +5.5

8

PWMCMP

IN

PWM Comparator Input Pin which controls PWM

operation during brightness adjustment.

N1 and N2 output stop when PWMCMP=L, and they

output Max Duty when PWMCMP=H

-0.3 to +5.5

9

CP

OUT

Timer Latch Setting Pin

In abnormal case, 1µA (Typ) will be charged to the

capacitor connected to CP, and IC becomes latch status

after output operation stops at CP>2V(Typ)

-0.3 to +5.5

10

PWMIN

IN

PWM Signal Input Pin for burst brightness adjustment

-0.3 to +5.5

11

ADIM

IN

DC Signal Input Pin for analog dimming

-0.3 to +5.5

12

SS

OUT

Soft Start timer and COMPSD timer Setting Pin

During start-up, 2µA (Typ) will be charged to connected

capacitor. At SS>2.0V(typ), COMPSD can start to

detect. At SS>2.5V (typ), CP can accept charge

operation.

-0.3 to +5.5

13

FAIL

OUT

Error Indication Signal Output Pin

Normal : L, Error : Open

-0.3 to +5.5

14

COMPSD

IN

Abnormal Over Voltage Detection Pin

When detecting abnormality, output operation stops and

IC becomes latch status after 2 clocks.

-0.3 to +5.5

15

PWM2DC

IN

Pulse to DC converting pin

Pulse Signal is translated to flat dc level by 100kΩ

resistor in IC and the capacitor connected to ADIM.

-0.3 to +20

16

PGND

IN

Power Ground for external MOSFET drive

-

17

N2

OUT

Output pin for external FET drive circuit (Channel N2)

-0.3 to +20

18

N1

OUT

Output pin for external FET drive circuit (Channel N1)

-0.3 to +20

Similar Part No. - BD9412F

Manufacturer	Part #	Datasheet	Description
Rohm	BD94121F	2Mb / 28P	PFC Direct current resonance type White LED Driver for Large LCD
	BD94121F-E2	2Mb / 28P	PFC Direct current resonance type White LED Driver for Large LCD
	BD94122F	2Mb / 28P	PFC Direct Current Resonance Type White LED Driver for Large LCD

More results

Similar Description - BD9412F

Manufacturer	Part #	Datasheet	Description
Rohm	BD92111F	2Mb / 28P	PFC Direct current resonance type White LED Driver for Large LCD
	BD94121F	2Mb / 28P	PFC Direct current resonance type White LED Driver for Large LCD
	BD94122F	2Mb / 28P	PFC Direct Current Resonance Type White LED Driver for Large LCD
	BD94062F	2Mb / 35P	1ch Buck Type White LED Driver for Large LCD 15.May.2018 Rev.002
	BD9397EFV	1Mb / 31P	White LED Driver for large LCD panel
	BD9397EFV	862Kb / 30P	White LED Driver for large LCD panel
	BD9422EFV	1Mb / 28P	White LED Driver for large LCD panel
	BD9422EFV	1Mb / 30P	White LED Driver for large LCD panel
	BD9413F	1Mb / 37P	1ch Boost up type White LED Driver for large LCD
	BD9428	759Kb / 29P	White LED Driver for large LCD Panels (DCDC Converter type)

More results

BD9412F Datasheet(PDF) 6 Page - Rohm

BD9412F Datasheet(HTML) 6 Page - Rohm

Similar Part No. - BD9412F

Similar Description - BD9412F

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Datasheet Download

Link URL