Partial Power Buck-Boost WLED Driver ( MP24830-C470 for Backlight, MP24830 for General Lighting )
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The MP24830 is a 90V white LED driver suitable for either step-down or inverting step up/down applications. It supports a wide input range with excellent load and line regulation. Its programmable current limit provides customized applications with a wide power range. Current mode operation provides a fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cyclebycycle peak-current limiting, open-string protection, and output short-circuit protection. The MP24830 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive-to-negative power conversion. The MP24830 requires a minimal number of readily-available external components. It is available in 14-pin SOIC and QFN packages.
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Features & Benefits
- Programmable Maximum Output Current
- Unique Step-Up/Down Operation (Buck-Boost Mode)
- Wide 4.5V-to-90V Operating Input Range for Step-Down Applications (Buck Mode)
- Adjustable Switching Frequency
- Analog and PWM Dimming
- 0.2V Reference Voltage
- 10μA Shutdown Mode
- No Minimum LED Quantity Required
- Stable with Low ESR Output Ceramic Capacitors
- Cycle-by-Cycle Over-Current Protection
- Thermal Shutdown Protection
- Open-String Protection
- Output Short-Circuit Protection
- Available in 14-Pin SOIC and QFN Packages
Active Part Numbers:
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
EV24830-S-00C Evaluation Kit 5V to 90V White LED Driver with Buck Mode and Configurable Frequency Evaluation Board
The EV24830-S-00C is designed to demonstrate the capabilities of the MP24830, a 90V white LED driver that is suitable for step-down applications. It supports a wide input range with excellent load and line regulation. Its configurable current limit provides customized applications with a wide power range. Current mode operation provides fast transient response and eases loop stabilization. Protections include thermal shutdown, cyclebycycle over-current protection (OCP), open-string protection, and output short-circuit protection (SCP).
The MP24830 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for direct enabling and/or dimming control for positive to negative power conversion. The MP24830 is available in a SOIC-14 package.
Buck-Boost Mode White LED Driver 8V- 24V, Programmable Frequency
Buck-Boost Mode White LED Driver 5V- 90V, Programmable Frequency