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.

Data Sheet

Fale Conosco

Additional Information

FAQ

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.

número de peça	Estado de Condição	pacote	Quantidade Unidade	Quantidade mínima Package	tipo de embalagem	RoHS
BD93941FP-E2	Active	HSOP20	2000	2000	Taping	sim

especificações:

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

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características:

- 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

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Dados técnicos

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Part Explanation

For ICs