BD9203EFV Просмотр технического описания (PDF) - ROHM Semiconductor

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BD9203EFV

White LED Driver for LCD Backlights with step-up DC/DC controller

ROHM Semiconductor 

1/4

STRUCTURE

PRODUCT

TYPE

FEATURE

Silicon Monolithic Integrated Circuit

White LED Driver for LCD Backlights with step-up DC/DC controller

BD9203EFV

・ 6CH LED current driver up to 150mA/CH built-in *2

・ Over voltage protection (OVP), Short circuit protection (SCP), LED open and short detection

・ Step-up DC/DC controller built-in

・ PWM and DC Dimming

・ Programmable timer latch and soft-start period by external capacitor

・ Over voltage protection (OVP), Short current protection (SCP), LED open and short detection

・ Under voltage lock out (UVLO)

・ HTSSOP-B28 package

○ ABSOLUTE MAXIMUM RATINGS (Ta=25℃)

PARAMETER

Symbol

Limit

Unit

Power Supply Voltage

VCC

VREF5V

36

V

7

V

STB Voltage

STB

36

V

LED Output Voltage

LED1～6

40

V

FAIL Output Voltage

FAIL

40

V

SEL, UVLO, PWM1, PWM2, RT,

Pin Voltage

SS, SLOPE, ISET, VREF,

CP, FB, OVP, CS

7

V

N

15

V

Power Dissipation

Pd

3.30 *1

W

Operating Temperature Range

Topr

-40～+85

℃

Storage Temperature Range

Tstg

-55～+150

℃

LED Maximum Current

ILED

150 *2

mA

*1 Pd derated at 26.4 mW/℃ for temperature above Ta=25℃,

mounted on 70mm×70mm×1.6mm 2 layer(cupper area 70mm×70mm)glass-epoxy PCB.

*2 This is the constant current value per 1ch. Please perform setting of the constant current value

in the range that is not beyond a value of Pd.

This product is not designed for protection against radioactive rays.

○ OPERATING CONDITIONS (Ta=25℃)

PARAMETER

Power Supply Voltage

CT Oscillation Frequency Range

VREF input voltage range

Symbol

VCC

FCT

VREF

Limit

Unit

9～35

V

100～1000

kHz

0～VREF5V

V

REV. Ａ

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