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Overview
| Topology | SEPIC Buck-Boost Topology |
| Input voltage | 5-30 V |
| Output 1 | 30 V |
| IC revision | 1 |
Description
Microchip's MCP19215 Digitally Enhanced Power Analog (DEPA) controller [1] can perform all these tasks asa single-chip solution and is ideal for robust applications with added intelligence from the microcontrollercore.The chip is dual-channel, meaning in this particularapplication, it can charge the battery while the LEDlamp is on. Essentially, the application controls twoSEPIC converters that function independently, onecharges the battery while the other one drives a stringof LEDs. Each channel can control both voltage andcurrent. For the LED string, both the current and maximum voltage are controlled on the output side of theconverter. For the battery charging part, things aremore complicated because MPPT mechanisms mustbe incorporated
Features
Dual channel, for operating two power outputs from one controllerConstant-current or constant-voltage operation, with dynamic switching between those two control modes, and dynamic adjustment of the output levelCapable of bi-directional power supply controlWide input operating voltage range: 4.5-42VAnalog peak-current mode Pulse-Width Modulation (PWM) controlIntegrated 8-Bit PIC® MicrocontrollerComplete configurability: adjustable output voltage, output current, MOSFET deadtime, leading edge blanking time, thermal responses, slope compensation, over-current protection, over and under voltage lockout levelsAvailable fixed frequency operation from 31 kHz to 2 MHzI2C communication interface12 GPIOIntegrated low-side MOSFET driversIntegrated high voltage linear regulator, with external outputIntegrated temperature sense diodeIntegrated 10 bit A/D converterMinimal external components neededCustom algorithm supportTopologies supported: Boost, SEPIC, Flyback, and Cuk
Typical applications
- Solar MPPT Charger
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L1 (µH) | L2 (µH) | n | IR (A) | IR 2 (A) | ISAT1 (A) | ISAT2 (A) | RDC1 typ (mΩ) | RDC2 typ (mΩ) | RDC1 max (mΩ) | RDC2 max (mΩ) | fres (MHz) | LS (µH) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206079 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 220 pF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206041 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | 15 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206093 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 47 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206095 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207103 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 1 µF | ±10% | 50 | 0805 | -55 °C up to +125 °C | 10 | 0.1 GΩ | X7R Class II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012107018 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 4.7 µF | ±20% | 25 | 0805 | -55 °C up to +85 °C | 10 | 0.02 GΩ | X5R Class II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
 | 61300411121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 10.16 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 4 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 7448990047 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MCRI SMT Molded Coupled Inductor | – | – | 60 | 1090 | -40 °C up to +125 °C | – | – | – | 11 | 10 | – | 4.7 | 4.7 | 1:1 | 5.9 | 5.9 | 24.2 | 24.2 | 36 | 36 | 40 | 40 | 17.5 | 0.235 | – | – | 9 | – | – | 5.9 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206079 | SPEC | |
| 885012206041 | SPEC | |
| 885012206093 | SPEC | |
| 885012206095 | SPEC | |
| 885012207103 | SPEC | |
| 885012107018 | SPEC | |
| 61300411121 | SPEC | – |
| 7448990047 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L1 (µH) | L2 (µH) | n | IR (A) | IR 2 (A) | ISAT1 (A) | ISAT2 (A) | RDC1 typ (mΩ) | RDC2 typ (mΩ) | RDC1 max (mΩ) | RDC2 max (mΩ) | fres (MHz) | LS (µH) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|
