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Product Detailed Parameters
- Description：IC DGTL PWR CTRLR 40WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Applications：Digital Power Controller
- Voltage - Input：2.1V
- Voltage - Supply：3V ~ 3.6V
- Current - Supply：-
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：40-WFQFN Exposed Pad
- Supplier Device Package：40-WQFN (6x6)
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Overview
The UCD3138ARMHT is a highly integrated digital power controller from Texas Instruments, part of the UCD3138A series. It operates within an input voltage range of 3 V to 3.6 V and draws 105 mA of input current. The device is housed in a WQFN-40 package suitable for SMD/SMT installation. It functions as a professional PMIC with a minimum operating temperature of -40 C and a maximum of +125 C.
Feature Summary
- Integrates a 32-bit ARM7TDMI-S processor for digital control execution
- Supports up to three independent feedback loops with hardware-accelerated PID compensation
- Features a high-speed Error ADC with up to 16 MHz sampling rate
- Includes multiple communication interfaces including I2C, PMBus, and UART
Applications
- Server power supplies
- Telecommunications rectifiers
- High-power DC/DC modules
- Industrial power systems
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and tape/reel specifications. Check for moisture sensitivity levels and storage conditions prior to assembly. Ensure firmware compatibility with existing design requirements before procurement.
Selection Notes
Select this model for designs requiring multi-loop digital control in isolated power applications. Consider the 40-pin WQFN package constraints for PCB layout. Evaluate the 32 KB program flash capacity against algorithm complexity. Verify thermal management capabilities given the specified operating temperature range.
Part Context
This component belongs to the UCD3138 family of digital power controllers designed for high-performance isolation applications. It replaces traditional analog controllers by integrating processing, sensing, and modulation on a single chip. The ARM-based architecture allows for flexible firmware updates and complex control strategies.
Replacement Considerations
Check for UCD3138 variants with different flash sizes or pin counts if system requirements change. Verify that alternative models support the same WQFN-40 footprint and electrical characteristics.
