UCD90120 12 通道序列发生器和系统安全监视器
UCD90120 描述
The UCD90120 Power Supply Sequencer and System Health Monitor monitors and sequences up to 12 independent voltage rails. The device integrates a 12-bit ADC with a 2.5V internal reference for monitoring up to 13 power supply voltage, current, or temperature inputs.
26 GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading multiple UCD90120 devices, or other system functions. 12 of these pins can be used as PWM outputs for power supply margining or general-purpose PWM functions including clock generation for switch-mode power supplies.
The TI Fusion Digital Power Designer is provided for device configuration. This PC-based Graphical User Interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.
|
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 |
UCD90120 特性
- Monitor and Sequence 12 Voltage Rails
- All Rails Sampled Every 200µs
- 12-bit ADC With 2.5V, 0.5% Internal VREF
- Sequence Based on Time, Rail and Pin Dependencies
- Six Hardware Comparators for Power Supply Fault Response in < 80µs
- Four Programmable Under-Voltage and Over-Voltage Thresholds per Monitor
- Programmable Fault Response Including Retries, Shutdown Slaves and Resequence
- Non-Volatile Error Logging
- Stores Up To 18 Faults
- Log Peak Values For All Monitor Inputs
- Closed Loop Margining for 10 Rails
- Margin Output Adjusts Rail Voltage to Match User-Defined Margin Thresholds
- Unused Margin Outputs can be Used as GPIOs or General-Purpose PWM Outputs
- Watchdog Timer and System Reset
- Programmable WDT Reset and Start Times
- Configurable System Reset Pulse Widths
- Flexible Digital I/O Configuration
- Boolean Logic Builder for GPO Config
- GPIOs can be Used as Enables, Resets, Power Good and Other On-Board Functions
- Wide Range Single Supply (3.3V to 12V)
UCD90120 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 |
| UCD90120RGCR |
ACTIVE |
-40 to 125 |
4.95 | 1ku |
VQFN (RGC) | 64 |
2000 | LARGE T&R |
UCD90120 |
| UCD90120RGCT |
ACTIVE |
-40 to 125 |
5.70 | 1ku |
VQFN (RGC) | 64 |
250 | SMALL T&R |
UCD90120 |
UCD90120 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 |
| UCD90120RGCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
UCD90120RGCR |
UCD90120RGCR |
| UCD90120RGCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
UCD90120RGCT |
UCD90120RGCT |
UCD90120 应用技术支持与电子电路设计开发资源下载
- UCD90120 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
UCD90120 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| UCD90120 评估模块 |
UCD90120EVM |
Texas Instruments |
开发电路板/EVM |
