Overview
The UCD9090QRGZRQ1, produced by Texas Instruments, is a highly advanced 10-rail power-supply sequencer and monitor designed for sophisticated power management in modern electronic systems. This device is particularly suited for automotive applications and is AEC-Q100 qualified, ensuring robust performance across a wide range of temperatures and conditions.
The UCD9090QRGZRQ1 integrates a 12-bit ADC for monitoring up to 10 power-supply voltage inputs and features 23 highly configurable GPIO pins, with 10 of these pins offering PWM functionality. This device supports both PMBus and I2C interfaces, making it versatile for various system configurations.
The Texas Instruments Fusion Digital Power Designer GUI provides a user-friendly interface for configuring the device, storing configurations in nonvolatile memory, and monitoring system status. This tool is essential for optimizing the sequencing and monitoring of power supplies in complex systems.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Number of Rails | Maximum number of power-supply rails that can be sequenced and monitored | 10 |
| ADC Resolution | Resolution of the ADC for voltage monitoring | 12-bit |
| GPIO Pins | Total number of GPIO pins available | 23 |
| PWM Capable GPIO Pins | Number of GPIO pins that can be used for PWM functions | 10 |
| Operating Temperature Range | Ambient operating temperature range | –40°C to 125°C |
| Storage Temperature Range | Storage temperature range | –40°C to 150°C |
| ESD Rating (HBM) | Human-body model ESD rating | 2.5 kV |
| ESD Rating (CDM) | Charged-device model ESD rating | 750 V |
| PMBus Compliance | PMBus standard revision supported | Revision 1.1 |
| Package Type | Type of package the device is available in | 48-VQFN |
Key Features
- PMBus and I2C Interface: Supports both PMBus and I2C interfaces for flexible system configuration and monitoring.
- 10-Rail Sequencing and Monitoring: Capable of sequencing and monitoring up to 10 power-supply voltage rails.
- Highly Configurable GPIOs: 23 GPIO pins, with 10 of these pins offering PWM functionality, allowing for various system control and monitoring functions.
- Advanced Fault Handling: Includes under- and overvoltage fault detection and flexible fault response options, such as restart, shutdown, or sequencing off.
- Margining and Closed-Loop Control: Supports accurate closed-loop margining of up to 10 power supplies and provides margining outputs for each rail.
- Fusion Digital Power Designer GUI: A PC-based graphical user interface for intuitive configuration, monitoring, and troubleshooting of the device.
- AEC-Q100 Qualified: Qualified for automotive applications, ensuring reliability and performance in harsh environments.
Applications
The UCD9090QRGZRQ1 is designed for use in complex electronic systems that require precise power supply sequencing and monitoring. Key applications include:
- Automotive Systems: Given its AEC-Q100 qualification, it is particularly suited for automotive applications where reliability and robustness are critical.
- Industrial Control Systems: Ideal for industrial control systems that require multiple power supplies to be sequenced and monitored accurately.
- Telecommunications Equipment: Used in telecommunications equipment to ensure proper power sequencing and fault handling.
- Medical Devices: Suitable for medical devices that require precise power management to ensure reliable operation.
- Data Centers and Servers: Can be used in data centers and servers to manage multiple power supplies efficiently.
Q & A
- What is the maximum number of power-supply rails that the UCD9090QRGZRQ1 can sequence and monitor?
The UCD9090QRGZRQ1 can sequence and monitor up to 10 power-supply rails.
- What is the resolution of the ADC used for voltage monitoring in the UCD9090QRGZRQ1?
The ADC resolution is 12-bit.
- How many GPIO pins are available on the UCD9090QRGZRQ1, and how many of these can be used for PWM functions?
There are 23 GPIO pins available, with 10 of these pins capable of PWM functions.
- What is the operating temperature range of the UCD9090QRGZRQ1?
The operating temperature range is –40°C to 125°C.
- Is the UCD9090QRGZRQ1 compliant with any specific power management standards?
Yes, it is compliant with PMBus standard revision 1.1 and SMBus 1.1 specification.
- How does the UCD9090QRGZRQ1 handle faults in the power supplies?
The device can handle faults by restarting, shutting down, or sequencing off the affected rails based on user-configured options.
- What is the role of the Texas Instruments Fusion Digital Power Designer GUI in configuring the UCD9090QRGZRQ1?
The Fusion Digital Power Designer GUI provides an intuitive interface for configuring system parameters, storing configurations, and monitoring system status.
- Can the UCD9090QRGZRQ1 be used in automotive applications?
Yes, it is AEC-Q100 qualified, making it suitable for automotive applications.
- How does the UCD9090QRGZRQ1 support margining and closed-loop control of power supplies?
The device supports accurate closed-loop margining of up to 10 power supplies and provides margining outputs for each rail.
- Can the GPIO pins be used as digital outputs with logic behind them?
Yes, the GPIO pins can be configured to function as digital outputs with logic behind them, including controlling ON/OFF of DC-DC converters or LDOs.
