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Overview
| Topology | Buck-Boost Converter |
| Input voltage | 4.5-12 V |
| Output 1 | 1 A |
| IC revision | A |
Description
The MCP1632 Single-Cell Li-Ion Battery Charger Demo Board is a step-up/step-down, switch-mode, DC/DC converter used for battery charging applications. The demo board provides a 4.2V constant voltage source. Other output voltages can be obtained with minor modifications to the board’s Bill of Materials (BOM).The MCP1632 Single-Cell Li-Ion Battery Charger Demo Board is an intelligent battery charging system for a single-cell Lithium-Ion battery. MCP1632 Single-Cell Li-Ion Battery Charger Demo Board utilizes Microchip's MCP1632 high-speed Pulse-Width Modulator (PWM). The 8-pin MCP1632 device contains all the analog components necessary for a peak current mode control loop including an error amplifier, PWM comparator and a high-current driver output pin.An 8-pin PIC12F1822 microcontroller is used to implement the charging algorithm. In addition, the PIC12F1822 firmware supervises the battery voltage and current.
Features
- Compact size, highly efficient battery charger
- Can operate in Buck (step-down) or Boost (step-up) mode
- Maximum output current: 1500 mA; can be adjusted via firmware
- Chemistry-optimized charging algorithm
- Maximum output power: 7W
- Factory-programmed source code provided
- Additional application functions can be implemented in the firmware
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | 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 | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-DD SMT Shielded Coupled Inductor | Inductance 14.7 µH | Inductance 24.7 µH | Rated Current1.3 A | Rated Current 21.3 A | Saturation Current3 A | DC Resistance 10.065 Ω | DC Resistance 20.065 Ω | DC Resistance 10.075 Ω | DC Resistance 20.075 Ω | Self Resonant Frequency46 MHz | TypeStraight |