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White LED Driver for large LCD Panels (DCDC Converter type) - BD93941FP

BD93941FP is a high efficiency driver for white LEDs and designed for large LCDs. These ICs are built-in a boost DCDC converters that employ an array of LEDs as the light source. BD93941FP has some protect function against fault conditions, such as the over-voltage protection (OVP), the over current limit protection of DCDC (OCP), the short circuit protection (SCP), the open detection of LED string. Therefore BD93941FP is available for the fail-safe design over a wide range output voltage.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BD93941FP-E2
Status | Active
Package | HSOP20
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | Yes

Specifications:

Topology

Boost

Number of Outputs

4

Vin(Min.)[V]

9.0

Vin(Max.)[V]

35.0

Output Current(Max.)[mA]

200.0

Frequency(Max.)[MHz]

0.15

Dimming

PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

  • 4ch LED constant current driver and DC/DC converter
  • Maximum LED Current: 200mA
  • LED Feedback Voltage: 0.37V (@ADIM=2.5V)so lower heat. Adjustable Feed Back Voltage by following LED Current setting.
  • ±2% LED current accuracy (ADIM=2.5V, when each LED is set to 100mA)
  • Analog current (Linear) dimming at ADIM pin
  • LED pin rating 60V
  • Individual detection and individual LED OFF for both open and short circuits
  • Built-in ISET pin short-circuit protection circuit
  • Set Soft-Start time by external capacitor.
  • FET’s Gate (N pin) is driven by 5.8V swing
  • Built-in Vout discharge circuit for shutdown
  • Built-in Vout overvoltage protection (OVP) / reduced voltage protection (SCP) circuit