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White LED Driver for large LCD Panels (DCDC Converter type) - BD9483FVBD9483FV is a high efficiency driver for white LEDs and designed for large LCDs. This IC is built-in 2ch boost DCDC converters that employ an array of LEDs as the light source. BD9483FV has some protect function against fault conditions, such as the over-voltage protection (OVP),the over current limit protection of DCDC (OCP), Max duty protection, LED OCP protection. Therefore BD9483FV is available for the fail-safe design over a wide range output voltage.
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* This product is a STANDARD grade product and not recommend for on-vehicle devices. |
especificações:
Topology | Boost |
Number of Outputs | 2 |
Vin(Min.)[V] | 11.0 |
Vin(Max.)[V] | 35.0 |
Frequency(Max.)[MHz] | 0.15 |
Integrated FET | No |
Dimming | PWM |
Operating Temperature (Min.)[°C] | -40 |
Operating Temperature (Max.)[°C] | 85 |
características:
- ・2ch boost DCDC converter with current mode
・LED protection circuit (Max duty protection, LED OCP protection)
・Over-voltage protection (OVP) for the output voltage Vout
・Adjustable soft start
・The wide range of analog dimming 0.2V-3.0V
・2ch independent PWM dimming input
・The UVLO detection for the input voltage of the power stage
・FAIL logic output
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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