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High Voltage Output Boost LED Constant Current Regulator
Overview
- Max Duty Cycle (%):90
- Input Voltage Range Max:5.5
- Input Voltage Range Min:2.4
- # of Outputs:0
- Output Current:300
- Driver Type:Step Up (Boost)
- Quiescent Current:0.25
- Synchronous Rectifier:No
- Temp Range Max °C (degrees Celsius):125
- Temp Range Min °C (degrees Celsius):-40
- Vout Max:32
- Vfb V (volt):0.3
- Vref (V):0
- Up to 92% Efficiency
- High Output Voltage Range: up to 32V
- ILEDup to 300 mA @ 5.0V VIN, 4 White LEDs
- ILED up to 200 mA @ 3.3V VIN, 4 White LEDs
- ILED up to 150 mA @ 4.2V VIN, 8 White LEDs
- Input Voltage Range: 2.4V to 5.5V
- UVLO@VIN Rising: 2.3V, typical
- UVLO@VIN Falling: 1.85, typical
- No Load Input Current: 250 µA, typical
- Sleep mode with 200 nA Typical Quiescent Current
- PWM Operation with Skip mode: 500 kHz
- Feedback Voltage Reference: VFB= 300 mV
- Cycle-by-Cycle Current Limiting
- Internal Compensation
- Inrush Current Limiting and Internal Soft-Start
- Feedback Pin Shorted to GND (Prevent Excessive Current into LEDs)
- Disconnected LED String (Prevent Overvoltage to the Converter’s Output and SW Pin)
- Overtemperature Protection
- Available Packages: 5-Lead SOT-23 or 2x3 8-Lead TDFN
The MCP1664 device is a compact, space-efficient, fixed-frequency, non-synchronous step-up converter optimized to drive LED strings with constant current from two and three-cell alkaline and NiMH/NiCd or one-cell Li-Ion or Li-Polymer batteries.
The device integrates a 36V, 400 mΩ low-side switch, which is protected by the 1.8A cycle-by-cycle inductor peak current limit operation. Low-voltage technology allows the MCP1664 to start-up without high inrush current or output overshoot. All compensation and protection circuitry is integrated to minimize the number of external components.
The device integrates a 36V, 400 mΩ low-side switch, which is protected by the 1.8A cycle-by-cycle inductor peak current limit operation. Low-voltage technology allows the MCP1664 to start-up without high inrush current or output overshoot. All compensation and protection circuitry is integrated to minimize the number of external components.
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Tools And Software
Development Environment
Demo & Evaluation Boards
| Tools |
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 Online power solutions, accelerated
MPLAB Analog Designer (MAD) allows you to choose an existing solution or customize a suggested design. Schematics and component lists are included. View or modify your choice and, with one click, export the design files to MPLAB Mindi Analog Simulator for verification and analysis.
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| Tools |
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| The MCP1664 LED Driver Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MCP1664 product. This board demonstrates the MCP1664 in a boost converter application supplied from an external voltage source, which drives a string of LEDs with three selectable currents. The MCP1664 LED Driver Evaluation Board was developed to help engineers reduce the product design cycle time. |
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["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
referencedesigns,Reference Designs:
codeexamples,Code Examples:
ibisboarddesignfiles,Board Design Files: