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Microchip Technology MCP19117T-E/MQ
- Part No.:
- MCP19117T-E/MQ
- Manufacturer:
- Microchip Technology
- Category:
- DC DC Switching Controllers
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
MCP19117T-E/MQ.pdf
- Description:
- IC PWM CTLR SYNC LOW SIDE 28QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,518
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Product details
Overview
MCP19117T-E/MQ from Microchip Technology is a digitally enhanced, mixed-signal synchronous low-side PWM controller with integrated 8-bit microcontroller core, designed for LED lighting, battery charging, and isolated/non-isolated DC-DC converters. It supports flyback, boost, SEPIC, and Ćuk topologies; operates from 4.5V to 42V input; delivers dual low-side gate drive (1A/10V or 0.5A/5V); features peak current mode control, differential remote output sensing, and AEC-Q100 qualification.
For engineers reviewing the MCP19117T-E/MQ datasheet, MCP19117T-E/MQ pinout, MCP19117T-E/MQ application, or MCP19117T-E/MQ equivalent, key selection considerations include its 28-pin QFN package, programmable dead time (16–256 ns), fixed-frequency range (31.25 kHz–2 MHz), quasi-resonant capability with built-in comparator, and integrated 10-bit ADC with seven analog inputs.
Technical Context
The MCP19117T-E/MQ integrates an analog PWM controller (similar to MCP1631) with a PIC®-compatible 8-bit microcontroller core (8192-word Flash, 336-byte RAM). Its dual low-side gate drivers support independent dead-time programming and operate at either 5V (0.5A sink/source) or 10V (1A sink/source) VDR, enabled via external voltage doubler (e.g., TC1240A).
It implements peak current mode control with leading-edge blanking (0/50/100/200 ns), 6-bit slope compensation, and differential current sensing using integrated low-side amplifier. The device uses two internal LDOs: 5V VDD for digital core and 4V AVDD for analog circuitry, with selectable ADC reference (VDD or AVDD).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +4.5V to +42V - Supports wide-input industrial and automotive power supplies; absolute max 44V continuous, 48V transient (500 ms). |
| Gate Drive Capability | 1A sink/source @ 10V VDR - Enables direct driving of medium-power MOSFETs without external buffers in high-efficiency converters. |
| Switching Frequency | 31.25 kHz to 2.0 MHz - Programmable fixed-frequency operation allows optimization for EMI, size, and efficiency across topologies. |
| ADC Resolution & Channels | 10-bit, 7 external channels (AN0–AN7) - Enables precise closed-loop monitoring of input voltage, output voltage, temperature, and current in multi-sensor systems. |
| Program Memory | 8192 words Flash - Sufficient for complex startup/shutdown profiles, protection logic, and communication stacks (I²C/AUSART). |
| Quiescent Current | 5 mA typical - Minimizes no-load power loss in always-on applications such as LED drivers and standby power supplies. |
| Sleep Current | 50 µA typical - Enables ultra-low-power modes for battery-backed or energy-harvesting systems. |
Pinout & Package
Package: 28-pin QFN (5 mm × 5 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply voltage input | Primary power rail connection; powers internal LDOs and bias circuits; requires input filtering per design guidelines. |
| VDD | +5V LDO output | Supplies microcontroller core and digital peripherals; can source gate drive when used with external RC filter to VDR. |
| VDR | Gate drive supply voltage | Accepts 4.5V–12V; determines gate drive strength (1A @ 10V, 0.5A @ 5V); must be decoupled with dual 4.7 µF caps and 10Ω isolation resistor. |
| PDRV / SDRV | Primary / secondary low-side gate drive outputs | CMOS push-pull outputs with independent programmable dead time (16–256 ns); support bidirectional converter operation. |
| ISP / ISN | Current sense amplifier non-inverting / inverting inputs | Differential inputs for secondary-side current sensing; integrated amplifier enables accurate low-side current measurement. |
| VS / IFB / ICOMP | Output voltage sense / error amp feedback / error amp output | Forms closed-loop voltage regulation path; VS connects to resistive divider; IFB accepts feedback signal; ICOMP drives external compensation network. |
| DESATP/ISOUT / DESATN | DESAT comparator positive input or current sense output / DESAT comparator negative input | Configurable pin: enables quasi-resonant zero-voltage switching detection (DESAT mode) or secondary current monitor output (ISOUT mode). |
| GPA0–GPA3, GPB0–GPB7 | General-purpose I/O with analog/digital functions | Eight configurable GPIOs (including open-drain options); support ADC (AN0–AN7), UART (RX/DT, TX/CK), I²C (SDA/SCL), ICSP (ICSPDAT/ICSPCLK), and capture/compare (CCD). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 10-bit ADC with 7 channels | Enables simultaneous monitoring of input voltage, output voltage, temperature, and up to four current paths without external sensors. |
| Programmable leading-edge blanking (LEB) | Four selectable values (0/50/100/200 ns) prevent false overcurrent triggering during MOSFET turn-on transients. |
| Dual low-side gate drivers with independent dead-time control | Eliminates shoot-through risk in synchronous rectification or bidirectional topologies; supports phase-shifted or interleaved designs. |
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures (−40°C to +125°C), enabling use in under-hood LED lighting and 12V/24V battery chargers. |
| Configurable UVLO/OVLO thresholds | Prevents unsafe operation during brown-out or overvoltage events; thresholds set digitally via registers, not fixed resistors. |
| I²C and AUSART communication interfaces | Allows real-time telemetry, firmware updates, and system-level coordination (e.g., dimming commands, fault reporting) without additional MCU overhead. |
Applications
| Automotive LED Headlamp Driver | Industrial Battery Charger |
|---|---|
|
Use Scenario: High-brightness LED headlamps requiring constant-current regulation, thermal derating, and CAN-linked dimming commands. IC Role / Device Role / Timing Role: Primary PWM controller and system manager; executes closed-loop current control, reads temperature via ADC, and interprets I²C dimming commands. Use Value: Eliminates need for separate MCU and analog controller; AEC-Q100 qualification ensures reliability in harsh automotive environments. |
Use Scenario: 24V lead-acid or Li-ion battery charger with adaptive charge profiling, input surge protection, and status reporting. IC Role / Device Role / Timing Role: Dual-role controller: manages synchronous rectification in buck-boost stage and implements state-machine-based CC/CV charging algorithm. Use Value: Integrated 8k-word Flash stores full charging profile; programmable OVLO/UVLO protects against grid instability; 50 µA sleep current extends standby life. |
| Isolated Flyback SMPS for Medical Equipment | High-Efficiency SEPIC LED Driver |
|
Use Scenario: Compact, low-noise 12V/5W isolated flyback supply for patient-connected devices requiring reinforced insulation and low EMI. IC Role / Device Role / Timing Role: Quasi-resonant flyback controller with DESAT-based ZVS detection; regulates output via optocoupler feedback to IFB pin. Use Value: Built-in QR comparator and offset adjustment reduce external component count; differential remote sensing improves load regulation accuracy to ±1%. |
Use Scenario: Wide-input (9–36V) constant-current LED driver for outdoor signage, supporting 12–48V LED strings with analog/digital dimming. IC Role / Device Role / Timing Role: SEPIC topology controller with primary current mode control; uses GPA0 as analog dimming input and GPB6 as PWM dimming output. Use Value: Seven ADC channels monitor input voltage, string voltage, heatsink temperature, and current sense; eliminates need for external DAC or op-amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally enhanced PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP19116T-E/MQ | 24-pin QFN, 4 analog inputs (AN0–AN3), no GPB4–GPB7, no RX/DT on GPB7 | Limited I/O and ADC channels; suitable for simpler single-output LED drivers or chargers with minimal telemetry. | Select when board space is constrained and full 7-channel ADC or dual UART/I²C is unnecessary. |
| UCC28950PW | Fixed-function phase-shifted full-bridge controller; no integrated MCU, no Flash, no ADC | Requires external MCU for telemetry or adaptive control; optimized for high-power telecom/server PSUs, not LED/battery apps. | Choose only for high-efficiency, high-power (>200W) isolated full-bridge designs where digital flexibility is secondary to analog precision. |
Compared with MCP19116T-E/MQ, the MCP19117T-E/MQ adds four ADC channels, dual UART capability, and expanded GPIO-enabling richer system monitoring and control without external components. Versus UCC28950PW, it trades fixed-function analog performance for software-defined adaptability, making it superior for cost-sensitive, feature-rich, medium-power applications.
Availability
MCP19117T-E/MQ is available at Aetrix Electronics and suitable for automotive LED lighting, industrial battery charging, isolated medical power supplies, and high-efficiency SEPIC LED drivers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MCP19117T-E/MQ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.
The MCP19117T-E/MQ belongs to Microchip's Digitally Enhanced Power Analog (DEPA) controller family, engineered to replace discrete analog controllers + MCUs in medium-power DC-DC applications-delivering higher integration, faster time-to-market, and field-upgradable control algorithms.
FAQ
What topology configurations does the MCP19117T-E/MQ support?
The MCP19117T-E/MQ supports flyback, boost, SEPIC, and Ćuk topologies out of the box, with peak current mode control and programmable slope compensation. Its dual low-side gate drivers and quasi-resonant comparator enable robust implementation of synchronous rectified and ZVS-capable variants. The MCP19117T-E/MQ datasheet confirms compatibility with all four topologies on pages 9–12, including schematic examples for each.
How does the MCP19117T-E/MQ achieve AEC-Q100 qualification?
The MCP19117T-E/MQ achieves AEC-Q100 Grade 1 qualification through rigorous stress testing across −40°C to +125°C ambient, including HTOL, ESD, latch-up, and package reliability validation. This certification applies specifically to the MCP19117T-E/MQ device variant and is documented in Microchip's official qualification report DS20005479D, page 1.
Can the MCP19117T-E/MQ operate without external programming after power-up?
Yes-the MCP19117T-E/MQ contains factory-programmed boot code and default register settings that enable immediate operation in basic PWM mode. However, full utilization of its digital features (e.g., ADC calibration, I²C communication, custom protection thresholds) requires user firmware loaded via ICSP™ using MPLAB X IDE. The MCP19117T-E/MQ will function as a fixed-frequency PWM controller even without custom firmware.
What is the maximum gate drive voltage supported by the MCP19117T-E/MQ?
The MCP19117T-E/MQ supports gate drive voltages up to 12V on the VDR pin, with rated performance at 10V (1A sink/source) and 5V (0.5A sink/source). Higher VDR voltages require external regulation; Microchip recommends using the TC1240A voltage doubler from VDD to generate 10V VDR. The MCP19117T-E/MQ electrical specifications confirm VDR absolute maximum is 13.2V (DS20005479D, page 22).
Does the MCP19117T-E/MQ support both master and slave operation in multi-controller systems?
Yes-the MCP19117T-E/MQ supports master/slave configuration via the MSC<1:0> bits in the MODECON register. In master mode, GPB1 outputs VREF2 for synchronization; in slave mode, CLKPIN (GPA1) accepts external sync signals. This enables interleaving or coordinated control across multiple MCP19117T-E/MQ devices, as detailed in Section 6.0 of the datasheet.
MCP19117T-E/MQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 28-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, Cuk, Flyback, SEPIC
- Number of Outputs:
- 1
- Output Phases:
- 1
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 42V
- Frequency - Switching:
- 31.25kHz ~ 2MHz
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- No
- Clock Sync:
- Yes
- Serial Interfaces:
- I2C
- Control Features:
- EN
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-QFN (5x5)
MCP19117T-E/MQ FAQ
1.How can I place an order for MCP19117T-E/MQ through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP19117T-E/MQ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP19117T-E/MQ reliable?
The price and inventory of MCP19117T-E/MQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP19117T-E/MQ is usually 5 days.
3.What payment methods are accepted for MCP19117T-E/MQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP19117T-E/MQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP19117T-E/MQ?
MCP19117T-E/MQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP19117T-E/MQ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP19117T-E/MQ?
For technical support, including MCP19117T-E/MQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP19117T-E/MQ requirements.
6.How does Aetrix verify that MCP19117T-E/MQ is sourced from the original manufacturer or authorized distributors?
All MCP19117T-E/MQ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP19117T-E/MQ meets industry standards.
7.What is the process for return or replacement of MCP19117T-E/MQ?
All MCP19117T-E/MQ units undergo pre-shipment inspection (PSI). If there is an issue with MCP19117T-E/MQ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP19117T-E/MQ part is unused and in its original packaging.
Return procedure for MCP19117T-E/MQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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