Overview
The UCD9222RGZR is a dual-phase digital PWM buck controller produced by Texas Instruments. This device is designed for non-isolated DC/DC power applications and integrates dedicated circuitry for DC/DC loop management. It supports up to two Voltage Identification (VID) interfaces, including 4-bit, 6-bit, and 8-bit parallel VID modes. The UCD9222 features flash memory and a serial interface for configurability, monitoring, and management, making it highly versatile for various power supply needs.
Key Specifications
| Parameter | Description |
|---|---|
| Package | 48-VQFN (7x7) with Exposed Pad |
| Number of Pins | 48 |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage (Vcc/Vdd) | 3 V ~ 3.6 V |
| Topology | Buck |
| Switching Frequency | 15.26 kHz ~ 2 MHz |
| Duty Cycle (Max) | 100% |
| Number of Outputs | 2 |
| Output Configuration | Positive |
| Serial Interfaces | I²C, PMBus, SMBus |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Fully configurable two-output non-isolated DC/DC PWM controller with support for TMS320C6670™ and TMS320C6678™ DSP VID interfaces.
- Supports switching frequencies up to 2 MHz with 250 ps duty-cycle resolution and up to 1 mV closed-loop resolution.
- Hardware-accelerated, 3-pole/3-zero compensator with non-linear gain for improved transient performance.
- Supports multiple soft-start and soft-stop configurations, including prebias start-up, voltage margining, and sequencing.
- Sync In/Out pins to align DPWM clocks between multiple UCD92xx devices.
- 12-bit digital monitoring of power supply parameters, including input current and voltage, output current and voltage, temperature at each power stage, and auxiliary ADC inputs.
- Multiple levels of over-current fault protection, over and under-voltage fault protection, and over-temperature fault protection.
- Enhanced nonvolatile memory with error correction code (ECC).
- Device operates from a single supply with an internal regulator controller, allowing operation over a wide supply voltage range.
- Supported by Fusion Digital Power™ Designer, a full-featured PC-based design tool for simulation, configuration, and monitoring of power supply performance).
Applications
- Networking Equipment).
- Telecommunications Equipment).
- FPGA, DSP, and Memory Power).
Q & A
- What is the UCD9222RGZR?
The UCD9222RGZR is a dual-phase digital PWM buck controller designed for non-isolated DC/DC power applications, produced by Texas Instruments).
- What are the supported VID modes for the UCD9222RGZR?
The UCD9222RGZR supports 4-bit, 6-bit, and 8-bit parallel VID modes, as well as an 8-bit serial interface).
- What is the operating temperature range of the UCD9222RGZR?
The operating temperature range is -40°C to 125°C).
- What are the supported serial interfaces for the UCD9222RGZR?
The device supports I²C, PMBus, and SMBus serial interfaces).
- What is the maximum switching frequency of the UCD9222RGZR?
The maximum switching frequency is up to 2 MHz).
- Does the UCD9222RGZR support multiple fault protections?
Yes, it supports multiple levels of over-current fault protection, over and under-voltage fault protection, and over-temperature fault protection).
- What tool is provided for configuring and monitoring the UCD9222RGZR?
The Fusion Digital Power™ Designer is a PC-based design tool provided for simulation, configuration, and monitoring of power supply performance).
- What is the package type and pin count of the UCD9222RGZR?
The package type is 48-VQFN (7x7) with 48 pins).
- Is the UCD9222RGZR RoHS compliant?
Yes, the UCD9222RGZR is lead-free and RoHS compliant).
- What are some of the key applications for the UCD9222RGZR?
Key applications include networking equipment, telecommunications equipment, and FPGA, DSP, and memory power).
