TPS3820-50是TI公司的一款无产品,TPS3820-50是处理器监控电路,本页介绍了TPS3820-50的产品说明、应用、特性等,并给出了与TPS3820-50相关的TI元器件型号供参考。
TPS3820-50 - 处理器监控电路 - 无 - 监控器和复位IC - TI公司(Texas Instruments,德州仪器)
- Power-On Reset Generator With Fixed Delay Time of 200 ms (TPS3823/4/5/8) or 25 ms (TPS3820)
- Manual Reset Input (TPS3820/3/5/8)
- Reset Output Available in Active-Low (TPS3820/3/4/5), Active-High (TPS3824/5), and Open Drain (TPS3828)
- Supply Voltage Supervision Range: 2.5 V, 3 V, 3.3 V, 5 V
- Watchdog Timer (TPS3820/3/4/8)
- Supply Current of 15 μA (Typical)
- 5-Pin SOT-23 Package
- Temperature Range: −40°C to 85°C
- DSPs, Microcontrollers, or Microprocessors
- Industrial Equipment
- Programmable Controls
- Automotive Systems
- Portable and Battery-Powered Equipment
- Intelligent Instruments
- Wireless Communications Systems
- Notebook and Desktop Computers
The TPS382x family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains less than the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage (VIT− + VHYS). When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x family also offers watchdog time out options of 200 ms (TPS3820) and 1.6 s (TPS3823/4/8).
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS382x | SOT-23 (5) | 2.90 mm × 1.60 mm |