数字PWM系统控制器 Digital PWM System Controller
DESCRIPON
The UCD9248 is a multi-rail, multi-phase synchronous buck digital PWM controller designed for
non-isolated DC/DC power applications. This device integrates dedicated circuitry for DC/DC loop
management with flash memory and a serial interface to support configurability, monitoring and
management.
FEATURES
• Fully Configurable Multi-Output and Multi Phase Non-Isolated DC/DC PWM Controller
• Controls Up to 4 Voltage Rails and Up to 8 Phases
• Supports Switching Frequencies Up to 2MHz with 250 ps Duty-Cycle Resolution
• Up To 1mV 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
• Supports Voltage Tracking, Margining and Sequencing
• Supports Current and Temperature Balancing for Multi-Phase Power Stages
• Supports Phase Adding/Shedding for Multi-Phase Power Stages
• Sync In/Out Pins Align DPWM Clocks Between Multiple UCD92xx Devices
• 12-Bit Digital Monitoring of Power Supply Parameters Including:
– Input/Output Current and Voltage
– Temperature at Each Power Stage
• Multiple Levels of Over-current Fault Protection:
– External Current Fault Inputs
– Analog Comparators Monitor Current Sense Voltage
– Current Continually Digitally Monitored
• Over- and Under-voltage Fault Protection
• Over-temperature Fault Protection
• Enhanced Nonvolatile Memory with Error Correction Code ECC
• Device Operates From a Single Supply with an Internal Regulator Controller That Allows
Operation Over a Wide Supply Voltage Range
• Supported by Fusion Digital Power™ Designer, a Full Featured PC Based Design Tool to Simulate, Configure, and Monitor Power Supply Performance
APPLICATIONS
• Industrial/ATE
• Networking Equipment
• Telecommunications Equipment
• Servers
• Storage Systems
• FPGA, DSP and Memory Power
型号 | 品牌 | 下载 |
---|---|---|
UCD9248PFCR | TI 德州仪器 | 下载 |
UCD90120ARGCT | TI 德州仪器 | 下载 |
UCD9224EVM-464 | TI 德州仪器 | 下载 |
UCD9090RGZT | TI 德州仪器 | 下载 |
UCD9222RGZT | TI 德州仪器 | 下载 |
UCD90120EVM | TI 德州仪器 | 下载 |
UCD9224RGZR | TI 德州仪器 | 下载 |
UCD9112RHBT | TI 德州仪器 | 下载 |
UCD9220RGZR | TI 德州仪器 | 下载 |
UCD9222RGZR | TI 德州仪器 | 下载 |
UCD9224RGZT | TI 德州仪器 | 下载 |