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TLC7701QDR 正在供货

具有可编程延迟时间的电压监控器

与 TLC7701QDRG4 相同 该器件型号与以上所列器件型号完全相同。您可仅批量订购上面所列的器件型号。

新增 - 有可用定制卷带
库存: 7,176
 

质量信息

RoHS
REACH
铅涂层/焊球材料 NIPDAU
MSL 等级/回流焊峰 Level-1-260C-UNLIM
材料成分 查看
MTBF/FIT 率 查看
资质摘要 查看
正在进行的可靠性监控 查看
器件标记 查看

封装信息

封装 | 引脚 包装数量 | 包装类型 温度
SOIC (D) | 8 2,500 | LARGE T&R
有可用定制卷带
Q (-40 to 125)
封装 | 引脚 SOIC (D) | 8
包装数量 | 包装类型 2,500 | LARGE T&R
有可用定制卷带
温度 Q (-40 to 125)
查看更多封装信息

TLC77 的特性

  • Power-On Reset Generator
  • Automatic Reset Generation After Voltage Drop
  • Precision Voltage Sensor
  • Temperature-Compensated Voltage Reference
  • Programmable Delay Time by External Capacitor
  • Supply Voltage Range . . . 2 V to 6 V
  • Defined RESET Output from VDD ≥ 1 V
  • Power-Down Control Support for Static RAM With Battery Backup
  • Maximum Supply Current of 16 µA
  • Power Saving Totem-Pole Outputs
  • Temperature Range . . . Up to –55°C to 125°C

TLC77 的说明

The TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer and microprocessor systems.

During power-on, RESET is asserted when VDD reaches 1 V. After minimum VDD (≥ 2 V) is established, the circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (VI(SENSE)) remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure proper system reset. The delay time, td, is determined by an external capacitor:

td = 2.1 × 104 × CT

Where

CT is in farads
td is in seconds

Except for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed sense threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold voltage, the outputs become active and stay in that state until SENSE voltage returns above threshold voltage and the delay time, td, has expired.

In addition to the power-on-reset and undervoltage-supervisor function, the TLC77xx adds power-down control support for static RAM. When CONTROL is tied to GND, RESET will act as active high. The voltage monitor contains additional logic intended for control of static memories with battery backup during power failure. By driving the chip select (CS) of the memory circuit with the RESET output of the TLC77xx and with the CONTROL driven by the memory bank select signal (CSH1) of the microprocessor, the memory circuit is automatically disabled during a power loss. (In this application the TLC77xx power has to be supplied by the battery.)

The TLC77xxI is characterized for operation over a temperature range of –40°C to 85°C; the TLC77xxQ is characterized for operation over a temperature range of –40°C to 125°C; and the TLC77xxM is characterized for operation over the full Military temperature range of –55°C to 125°C.

The 3×3 mm DRB package is also available as a non-magnetic package for medical imaging application.

价格


数量 单价 (USD)
1-99 $1.340
100-249 $1.106
250-999 $0.795
1,000+ $0.598

其他包装数量|包装方式选择

TLC7701QD 正在供货
包装数量 | 包装类型 75 | TUBE
库存 5,935
数量 | 价格 (USD) 1ku | $0.713 1-99 $1.597 100-249 $1.319 250-999 $0.948 1,000+ $0.713