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Overview
| Topology | Buck Converter |
| Input voltage | 5.3-16 V |
| Output 1 | 2 A |
| IC revision | B |
Description
The MCP1631/MCP1631V is a high-speed analog pulse width modulator (PWM) used to develop intelligent power systems. When combined with amicrocontroller, 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 frequencyand 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 andprogrammable 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 conditioning 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.
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 SwitchingFrequency and Maximum Duty Cycle Limit
- External Reference Input Sets Regulation Voltageor Current
- Error Amplifier, Battery Current ISNS Amplifier,Battery Voltage VSNS Amplifier Integrated
- Integrated Overvoltage Comparator
- Integrated High Current Low Side MOSFETDriver (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)
Typical applications
- LED Lighting Applications
- USB Input Programmable Switching Battery Chargers
- Constant Current SEPIC Power Train Design
- High Input Voltage Programmable Switching Battery Chargers
- Supports Multiple Chemistries Li-Ion, NiMH, NiCd Intelligent and Pb-Acid
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | Application | PCB/Cable/Panel | Modularity | Wire Section | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | Pitch (mm) | Mount | Working Voltage (V (AC)) | Contact Resistance (mΩ) | Tol. R | L (mm) | Stranded Wire Section (AWG) | Stranded Wire Section (Metric) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q (%) | DF (%) | RISO | Ceramic Type | W (mm) | Fl (mm) | H (mm) | Operation Force (Value) (g) | Electrical Life (Cycles) | Actuator Color | Vaporphase process | L1 (µH) | L2 (µH) | IR (A) | IR 2 (A) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Type | Pins | Rows | Gender | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691210910002 | SPEC | – | 6 files | WR-TBL Series 2109 - 2.54 mm Horiz. Entry | Rising Cage Clamp | PCB | No | 30 to 18 (AWG) 0.2 to 0.75 (mm²) | – | – | – | – | – | – | – | 2.54 | THT | 150 | 20 | max. | 5.48 | 30 to 18 (AWG) | 0.2 to 0.75 (mm²) | – | – | – | – | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Horizontal | 2 | – | – | 6 | Box | |
 | 744870100 | SPEC | 8 files | WE-DD SMT Shielded Coupled Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 12.5 | – | – | – | – | – | 1280 | -40 °C up to +125 °C | – | – | – | – | 12.5 | – | 8.5 | – | – | – | – | 10 | 10 | 2.7 | 2.7 | 7 | 0.038 | 0.038 | 0.044 | 0.044 | 18 | – | – | – | – | 2.7 | – | ||
 | 150080YS75000 | SPEC | 6 files | WL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | 590 | Yellow | 595 | 120 | 2 | AlInGaP | 140 | – | SMT | – | – | – | 2 | – | – | – | – | – | 0805 | -40 °C up to +85 °C | – | – | – | – | 1.25 | – | 0.7 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Tape and Reel | ||
 | 885012007053 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | 22 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 840 | – | 10 GΩ | NP0 Class I | 1.25 | 0.5 | 0.6 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
| 885012207025 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | 4.7 µF | ±10% | 10 | 0805 | -55 °C up to +125 °C | – | 10 | 0.02 GΩ | X7R Class II | 1.25 | 0.5 | 1.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
| 885012207045 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | 100 nF | ±10% | 16 | 0805 | -55 °C up to +125 °C | – | 3.5 | 5 GΩ | X7R Class II | 1.25 | 0.5 | 0.8 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
| 885012207078 | SPEC | 7 files | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | 1 µF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 5 | 0.5 GΩ | X7R Class II | 1.25 | 0.5 | 1.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
| 885012207079 | SPEC | 7 files | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | 2.2 µF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 10 | 0.05 GΩ | X7R Class II | 1.25 | 0.5 | 1.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
| 885012207087 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | 1.5 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Class II | 1.25 | 0.5 | 0.8 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
| 885012108021 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 3.2 | – | – | 10 µF | ±20% | 25 | 1206 | -55 °C up to +85 °C | – | 10 | 0.01 GΩ | X5R Class II | 1.6 | 0.6 | 1.6 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
 | 61900511121 | SPEC | – | 6 files | WR-WTB 2.54 mm Male Locking Header | – | PCB | – | – | – | – | – | – | – | – | – | 2.54 | THT | 250 | 20 | max. | 12.7 | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Vertical | 5 | – | Male | 3 | Bag | |
 | 61303611021 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Angled Pin Header | – | – | – | – | – | – | – | – | – | – | – | 2.54 | THT | 250 | 20 | max. | 91.44 | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Angled | 36 | Single | Pin Header | 3 | Bag | |
 | 430152043826 | SPEC | – | 5 files | WS-TASV SMT Tact Switch 6x6 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 12 | – | -40 °C up to +85 °C | – | – | 100 MΩ | – | – | – | 4.3 | 260 | 200000 | White | not specified | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.05 | Tape and Reel | |
 | 61300511121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | 2.54 | THT | 250 | 20 | max. | 12.7 | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Straight | 5 | Single | Pin Header | 3 | Bag |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | Application | PCB/Cable/Panel | Modularity | Wire Section | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | Pitch (mm) | Mount | Working Voltage (V (AC)) | Contact Resistance (mΩ) | Tol. R | L (mm) | Stranded Wire Section (AWG) | Stranded Wire Section (Metric) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q (%) | DF (%) | RISO | Ceramic Type | W (mm) | Fl (mm) | H (mm) | Operation Force (Value) (g) | Electrical Life (Cycles) | Actuator Color | Vaporphase process | L1 (µH) | L2 (µH) | IR (A) | IR 2 (A) | ISAT (A) | RDC1 typ (Ω) | RDC2 typ (Ω) | RDC1 max (Ω) | RDC2 max (Ω) | fres (MHz) | Type | Pins | Rows | Gender | IR (A) | Packaging | Samples |
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