- MP4001
MP4001
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Description
The MP4001 is a high efficiency step-down converter designed for driving the high brightness Light Emitting Diodes (LEDs). The MP4001 drives external MOSFET with boundary conduction mode which features no reverse recovery loss in the freewheeling diode, soft turn on with zero-current and valley voltage for the power MOSFET. Such operation mode can achieve very high efficiency and in the same time minimize the inductor value and size. With the boundary conduction control mode, the LED current can be well regulated by control the MOSFET peak current which is sensed through an external resistor. Its low 300mV feedback voltage reduces power loss and improves the efficiency. The MP4001 integrates a high-voltage smart LDO, which allows the AC input to power up the IC directly. The smart LDO sinks current when the input voltage is lower than 24V to achieve higher efficiency. The MP4001 implements both PWM and DC input burst dimming The MP4001 features output short protections, maximum switching frequency limitation, under-voltage lockout and thermal shut down.
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Features & Benefits
- Constant-current LED Driver
- Universal AC Input (85VAC-265VAC)
- Power MOSFET Zero-Current Turn On
- High Efficiency Boundary Mode Operation
- Integrated High-voltage Smart LDO
- Low 1mA Operation Current
- PWM or DC Input Burst Dimming Control
- Hiccup Short Circuit Protection
- Maxim Frequency Limited to 110kHz
- Thermal Shutdown
- Available in SOIC8 Package

Active Part Numbers:
MP4001DS-LF-P MP4001DS-LF-Z
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MP4001 Resources
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APPLICATION
AC/DC LIGHTINGAPPLICATIONAC/DC lighting applications include signage, street lights, GU10, par lights, A19 bulbs, recessed downlighting, T8 tube lighting, and troffer lights. Any LED lighting setup must offer high energy efficiency and peak reliability to extend the lifetime of the light. Because LEDs are quickly becoming the leading lighting technology in office, industrial, and home-based situations, there is now a grea...
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REFERENCE DESIGN
SMART PLUG REFERENCE DESIGN - MP161 NON-ISOLATED BUCK REGULATOR WITH ESP8266REFERENCE DESIGNNowadays everything is connected. So why not also connect the wall plugs? MPS presents a reference design with the MP161 part that will allow customers to join the IoT market. This is a two boards product, one for the DC/DC converter and the relay and the other for the Wi-Fi module. The configuration is designed to fit into a wall-plug. IoT non-isolated designs This refer...
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VIDEO
HIGH-POWER PFC: TOTEM-POLE PFC VS. INTERLEAVED BOOST PFCVIDEOModern power supply designs require advanced power factor correction (PFC) circuitry to meet strict power factor (PF) standards while maintaining high efficiency and low cost. Interleaved boost PFC is the most commonly used PFC topology, but the advent of wide-bandgap semiconductors has enabled the implementation of bridgeless topologies like totem-pole PFC. This video explores the composition and...
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ARTICLE
LITHIUM-ION BATTERY CHARGER IC BASED MAXIMUM POWER POINT TRACKING SYSTEMARTICLEIn an era characterized by the internet of things (IoT), more connectivity means more outdoor devices are now battery-powered and constantly communicating. In particular, an increasing number of outdoor devices are being powered through solar panels. The charger should be suitable for maximum power point tracking (MPPT) in outdoor designs with a solar panel. This article illustrates design tips fo...
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ARTICLE
POWER FACTOR CORRECTIONARTICLEPower factor is defined as the ratio of energy a device is capable of transmitting to the output versus the total amount of energy it takes from the input power source. It is a key figure of merit for the design of electrical devices, especially due to the regulations put in place by countries and international organizations like the EU, which define the minimum power factor or maximum level of ha...
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REFERENCE DESIGN
BATTERY CHARGER WITH MPPT REFERENCE DESIGNREFERENCE DESIGN -
VIDEO
APEC 2020 HR121X DEMOVIDEOAC/DC power supply designs must meet strict performance and size requirements. This video explores the HR121x family of full digital PFC + LLC combo controllers from MPS. PFC + LLC Controllers HR1210
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ARTICLE
TOTAL INTEGRATED POWER SOLUTION FOR SMART LIGHTINGARTICLESmart lighting is considered to be the new frontier of the global lighting industry, as the trend of smart homes, Internet of Things (IoT), and a connected world are the main driving factors in global electronics growth. In terms of major applications of the smart lighting concept, the industry is currently more focused on light intensity dimming, lighting color temperature adjustment, ambient sen...
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ARTICLE
CAPACITIVE ISOLATION: A FUNDAMENTAL BUILDING BLOCK IN FUTURE AC/DC POWER CONVERSIONARTICLECapacitive isolation is a mature solution developed over the past decade to replace optocouplers in signal isolators, isolated gate drivers, isolated transceivers, and other applications1. However, the potential to use capacitive isolation to replace optocouplers in offline adaptors is often neglected. This articles explains why capacitive isolation can be a fundamental building block in future AC...
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