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MCP1631T-E/SS Datasheet(PDF) 1 Page - Microchip Technology |
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MCP1631T-E/SS Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 34 page  © 2008 Microchip Technology Inc. DS22063B-page 1 MCP1631/HV/MCP1631V/VHV Features • Programmable Switching Battery Charger Designs • High-Speed Analog PWM Controller (2 MHz Operation) • Combine with Microcontroller for “Intelligent” Power System Development • Peak Current Mode Control (MCP1631) • Voltage Mode Control (MCP1631V) • High Voltage Options Operate to +16V Input: - MCP1631HV Current Mode - MCP1631VHV Voltage Mode • Regulated Output Voltage Options: - +5.0V or +3.3V - 250 mA maximum current • External Oscillator Input sets Switching Frequency and Maximum Duty Cycle Limit • External Reference Input Sets Regulation Voltage or Current • Error Amplifier, Battery Current ISNS Amplifier, Battery Voltage VSNS Amplifier Integrated • Integrated Overvoltage Comparator • Integrated High Current Low Side MOSFET Driver (1A Peak) • Shutdown mode reduces IQ to 2.4 µA (typical) • Internal Overtemperature Protection • Undervoltage Lockout (UVLO) • Package Options: - 4 mm x 4 mm 20-Lead QFN (MCP1631/MCP1631V only) - 20-Lead TSSOP (All Devices) - 20-Lead SSOP (All Devices) Applications • High Input Voltage Programmable Switching Battery Chargers • Supports Multiple Chemistries Li-Ion, NiMH, NiCd Intelligent and Pb-Acid • LED Lighting Applications • Constant Current SEPIC Power Train Design • USB Input Programmable Switching Battery Chargers General Description The MCP1631/MCP1631V is a high-speed analog pulse width modulator (PWM) used to develop intelligent power systems. When combined with a microcontroller, the MCP1631/MCP1631V will control the power system duty cycle providing output voltage or current regulation. The microcontroller can be used to adjust output voltage or current, switching frequency and maximum duty cycle while providing additional features making the power system more intelligent, robust and adaptable. Typical applications for the MCP1631/MCP1631V include programmable switch mode battery chargers capable of charging multiple chemistries, like Li-Ion, NiMH, NiCd and Pb-Acid configured as single or multiple cells. By combining with a small microcontroller, intelligent LED lighting designs and programmable SEPIC topology voltage and current sources can also be developed. The MCP1631/MCP1631V inputs were developed to be attached to the I/O pins of a microcontroller for design flexibility. Additional features integrated into the MCP1631HV/MCP1631VHV provide signal condition- ing and protection features for battery charger or constant current source applications. For applications that operate from a high voltage input, the MCP1631HV and MCP1631VHV device options can be used to operate directly from a +3.5V to +16V input. For these applications, an additional low drop out +5V or +3.3V regulated output is available and can provide current up to 250 mA to power a microcontroller and auxiliary circuits. High-Speed, Pulse Width Modulator |
Similar Part No. - MCP1631T-E/SS |
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