UCD3138ARMHR

UCD3138ARMHR is a TI/Unitrode digital power controller optimized for high‑reliability power electronics. It combines an ARM‑based core with rich analog peripherals to implement closed‑loop control of switch‑mode converters. On‑chip resources typically include multiple ADCs, PWM outputs, timers, comparators, a DAC, on‑chip flash and RAM, and safety features such as fault protection and watchdogs. The device is designed for deterministic, real‑time control loops in applications like offline/DC‑DC power supplies, AC/DC converters, motor drives, and energy‑storage interfaces, where stability, speed, and reliability are critical. Software support covers current‑ and voltage‑mode control (PI/PID), protection logic, and debugging with TI’s code libraries and development tools. The HR suffix denotes high‑reliability variants suitable for aerospace/industrial environments. In short, UCD3138ARMHR provides a single‑chip digital control solution that reduces system bill‑of‑materials and enables fast time‑to‑market for power electronics.

Not a direct drop-in. Closest equivalents by function:
- Microchip UCD316x/UCD314x series (other digital-power MCUs)
- TI C2000 digital-power MCUs (e.g., F2837x, F2807x)
- ST STM32F4/F7 (ARM Cortex-M4/M7)
- NXP LPC43xx/LPC55xx (ARM Cortex-M4/M33)
- Renesas RX/RL78/G1 (high-performance control MCUs)
Note: pinouts/peripherals differ; check datasheets for PWM/ADC/DAC counts and features.

UCD3138ARMHR is a Microchip/Unitrode digital-power controller with an ARM-based core designed for real-time power electronics control. Key features include:
- 32-bit ARM-based high-performance CPU for closed-loop control
- On-chip flash and RAM for firmware and data
- Multiple high-resolution PWM outputs with dead-time, fault protection, and synchronized updates for multi-phase converters
- Multi-channel, high-speed 12-bit ADCs with simultaneous sampling for accurate feedback
- On-chip DACs for reference/generator signals
- Rich timing and control peripherals: timers, capture/compare, event generation, and programmable interlocks
- Programmable analog blocks: comparators, op-amps, and gain options
- Serial communications: SPI, I2C, and UART/SERIAL interfaces (for peripherals and control)
- Flexible clocking and power-management features with various sleep/wake modes
- Safety and fault features: watchdog, brown-out protection, fault capture
- Development support: library code, example projects, and toolchain compatibility for digital-power applications
Designed for digital power conversion, motor drive, and other closed-loop power-control tasks.

- Pin count: 100 pins (high‑reliability package, HR variant).
- Function: 32‑bit ARM7TDMI‑S based microcontroller for digital power‑electronics control, offering multiple PWM channels, ADCs, DACs, comparators, timers, and serial interfaces for control loops in power converters/inverters.

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational technology and semiconductor company that designs and manufactures analog and embedded processing semiconductors (including microcontrollers and DSPs) for automotive, industrial, and consumer electronics.

UCD3138ARMHR is an ARM-based, high-reliability digital power controller. Typical application areas include:
- Digital control of switch-mode power supplies (SMPS) and DC-DC converters
- Active power factor correction (PFC)
- Three-phase motor drives and servo control (PMSM/BLDC)
- Renewable energy interfaces and grid-tied inverters (solar/wind)
- UPS, battery chargers and energy-storage systems
- Automotive power electronics and general industrial control
These cover power electronics, energy, and industrial control applications.

RoHS-compliant 208-pin LQFP (Low-Profile Quad Flat Pack) package.