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- 产品类别:电源管理
- 技术类目:监控器和复位 IC
- 功能描述:增强型产品微功耗电源电压监控器
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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 (see ), the memory circuit is automatically disabled during a power loss. (In this application the TLC77xx power has to be supplied by the battery.)
- 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 mA
- Power Saving Totem-Pole Outputs
- Number of supplies monitored
- 1
- Threshold voltage 1 (Typ) (V)
- Adjustable, 1.1, 2.93, 4.5
- Features
- Manual reset capable, Complimentary output
- Reset threshold accuracy (%)
- 5.4
- Output driver type/reset output
- Active-high, Active-low, Push-pull
- Time delay (ms)
- Programmable
- Rating
- HiRel Enhanced Product
- Watchdog timer WDI (sec)
- None
- Operating temperature range (C)
- -40 to 125, -55 to 125
TLC77-EP的完整型号有:TLC7701MDREP、TLC7701MPWREP、TLC7701MPWREPG4、TLC7701QPWREP、TLC7705QPWREP、TLC7733MPWREP、TLC7733QPWREP、V62/04604-01XE、V62/04604-02XE、V62/04604-03XE、V62/04604-04XE、V62/04604-04YE、V62/04604-06XE,以下是这些产品的关键参数及官网采购报价:
TLC7701MDREP,工作温度:-55 to 125,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7701MDREP的批量USD价格:2.549(1000+)
TLC7701MPWREP,工作温度:-55 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7701MPWREP的批量USD价格:2.549(1000+)
TLC7701MPWREPG4,工作温度:-55 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7701MPWREPG4的批量USD价格:2.549(1000+)
TLC7701QPWREP,工作温度:-40 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7701QPWREP的批量USD价格:2.549(1000+)
TLC7705QPWREP,工作温度:-40 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7705QPWREP的批量USD价格:2.428(1000+)
TLC7733MPWREP,工作温度:-55 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7733MPWREP的批量USD价格:3.186(1000+)
TLC7733QPWREP,工作温度:-40 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TLC7733QPWREP的批量USD价格:3.186(1000+)
V62/04604-01XE,工作温度:-40 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/04604-01XE的批量USD价格:2.549(1000+)
V62/04604-02XE,工作温度:-40 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/04604-02XE的批量USD价格:2.428(1000+)
V62/04604-03XE,工作温度:-40 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/04604-03XE的批量USD价格:3.186(1000+)
V62/04604-04XE,工作温度:-55 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/04604-04XE的批量USD价格:2.549(1000+)
V62/04604-04YE,工作温度:-55 to 125,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/04604-04YE的批量USD价格:2.549(1000+)
V62/04604-06XE,工作温度:-55 to 125,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网V62/04604-06XE的批量USD价格:3.186(1000+)
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