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Monolithic Power Systems MPQ2483DQ | Demoboard EVQ2483-Q-00A
55V, Programmable Frequency White LED Driver Evaluation Board AEC-Q100 Qualified
Overview
| Topology | Buck-Boost Converter |
| Input voltage | 12 V |
| Output 1 | 0.7 A |
| IC revision | 1.0 |
Description
The MPQ2483 is a 55V, white LED driver suitable for either step-down or inverting step-up/down applications. It achieves 2.5A peak current over a wide input supply range with excellent load and line regulation. Currentmode operation provides fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown,cycle-by-cycle peak current limiting, input over voltage protection, open strings protection and output short circuit protection.
The MPQ2483 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for directenable and/or dimming control for a positive to negative power conversion.
The MPQ2483 is package in QFN10 (3 x 3)mm.
Features
- Unique Step-up/down Operation (Buck- Boost Mode)
- Wide 4.5V to 55V Operating Input Range for
- Step-Down Applications (Buck Mode)
- 0.28Ω Internal Power MOSFET Switch
- Adjustable Switching Frequency
- Analog and PWM Dimming
- 0.198V Reference Voltage
- 5μA Shutdown Mode
- No minimum LED required
- Stable with Low ESR Output Ceramic Capacitors
- Cycle-by-Cycle Over Current Protection
- Thermal Shutdown Protection
- Open Strings Protection
- Output Short Circuit Protection
- Available in 10-Pin 3x3 QFN Package
Typical applications
- General LED Illuminations
- Automotive Lighting
- LCD Backlight Panels