Rohm Breadcrumb

Rohm Productdetail

White LED Driver for large LCD Panels (DCDC Converter type) - BD9479FV

BD9479FV is a high efficiency driver for white LEDsand designed for large LCDs. This IC is built-in a boostDCDC converters that employ an array of LEDs as thelight source. BD9479FV has some protect functionagainst fault conditions, such as the over-voltageprotection (OVP), the over current limit protection ofDCDC (OCP), the short circuit protection (SCP), theopen detection of LED string. Therefore BD9479FV isavailable for the fail-safe design over a wide rangeoutput voltage.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BD9479FV-GE2
Status | Active
Package | SSOP-B40
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | Yes

Specifications:

Topology

Boost

Number of Outputs

8

Vin(Min.)[V]

9.0

Vin(Max.)[V]

35.0

Frequency(Max.)[MHz]

0.8

Integrated FET

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

・ 8ch LED constant current driver (external PNP Tr Type)
・ Maximum LED setting current 500mA (VREF pin setting)
・ Build-in DC/DC converter
・ Analog Dimming (Linear) function
・ Individual channel PWM Dimming function
・ LED protection function (Open Short protection) [PWM-independent Type]
・ Output short protection (OVP)
・ Built-in Timer latch function (CP)
・ Built-in under voltage Lockout function (UVLO)・over voltage protection (OVP)
・ Built-in FAIL indication function
・ Built-in OVP voltage Feedback function
・ Built-in PWM-independent soft start circuit
・ SSOP-B40 Package