UCD90124 12 通道序列发生器和系统安全监视器
UCD90124 描述
The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and system-health monitor. The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature inputs. Twenty-six GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Twelve of these pins offer PWM functionality. Using these pins, the UCD90124 offers support for fan control, margining, and general-purpose PWM functions.
Fan-control signals can be sent using PMBus commands or generated from one of two built-in fan-control algorithms. PWM outputs combined with temperature and fan-speed measurements provide a complete fan-control solution for up to four independent fans
|
UCD90120 |
UCD90124 |
UCD9090 |
UCD90910 |
| No. of Supervisors |
12 |
12 |
9 |
|
| Time Delay(ms) |
Prog |
Prog |
Prog |
Prog |
| # of supplies monitored |
13 |
13 |
11 |
10 |
| IDD(Typ)(uA) |
50000 |
50000 |
50000 |
50000 |
| Pin/Package |
64VQFN |
64VQFN |
48VQFN |
64VQFN |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
UCD90124 特性
- Monitor and Sequence 12 Voltage Rails
- All Rails Sampled Every 400 µs
- 12-bit ADC With 2.5-V, 0.5% Internal VREF
- Sequence Based on Time, Rail and Pin Dependencies
- Four Programmable Undervoltage and Overvoltage Thresholds per Monitor
- Fan Control and Monitoring
- Supports Four Fans With Five User-Defined Speed-vs-Temperature Setpoints
- Supports Two-, Three-, and Four-Wire Fans
- Nonvolatile Error and Peak-Value Logging per Monitor (up to 12 Faults)
- Closed-Loop Margining for 10 Rails
- Margin Output Adjusts Rail Voltage to Match User-Defined Margin Thresholds
- Programmable Watchdog Timer and System Reset
- Flexible Digital I/O Configuration
- Multiphase PWM Clock Generator
- Clock Frequencies From 15.259 kHz to 125 MHz
- Capability to Configure Independent Clock Outputs for Synchronizing
Switch-Mode Power Supplies
- Internal Temperature Sensor
- JTAG and I2C/SMBus/PMBus Interfaces
- APPLICATIONS
UCD90124 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| UCD90124RGCR |
ACTIVE |
-40 to 125 |
4.95 | 1ku |
VQFN (RGC) | 64 |
2000 | LARGE T&R |
UCD90124 |
| UCD90124RGCT |
ACTIVE |
-40 to 125 |
5.70 | 1ku |
VQFN (RGC) | 64 |
250 | SMALL T&R |
UCD90124 |
UCD90124 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| UCD90124RGCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
UCD90124RGCR |
UCD90124RGCR |
| UCD90124RGCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
UCD90124RGCT |
UCD90124RGCT |
UCD90124 应用技术支持与电子电路设计开发资源下载
- UCD90124 数据资料 dataSheet 下载.PDF
- TI 德州仪器监控电路（电压监控器）产品选型与价格 . xls
UCD90124 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| UCD90124 评估模块 |
UCD90124EVM |
Texas Instruments |
开发电路板/EVM |
