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参数资料
| 型号： | 5962-88685012A |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 10/23页 |
| 文件大小： | 630K |
| 代理商： | 5962-88685012A |
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TI Home > Semiconductors > Analog & Mixed-Signal > Power Management > Supervisory Circuits(Voltage Supervisors) >
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TL7705A, Status: ACTIVE
Single Supply Voltage Supervisor for 5V Systems with Programmable Time
Delay
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Simulation Models
Tools & Software
Reference Designs
Datasheet
Supply -Voltage Superv isors (Rev . H) (tl7705a.pdf, 354 KB)
01 May 2003 Download
TL7705A
No. of Supervisors
1
ICC(Max)(uA)
3000
VCC(Min)(V)
3.5
VCC(Max)(V)
18
Vsense1(Nom)(V)
5
Vit1(Typ)(V)
4.55
IDD(Typ)(uA)
1800
Reset Threshold
Accuracy(%)
1.1
Time Delay(ms)
Prog
Pin/Package
8PDIP,8SO,8SOIC
Approx. 1KU Price
(US$)
.25
Product Information
Features
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Power-On Reset Generator
Automatic Reset Generation After Voltage Drop
Wide Supply-Voltage Range
Precision Voltage Sensor
Temperature-C ompensated Voltage Reference
True and C omplement Reset Outputs
Externally Adjustable Pulse Duration
Description
The TL77xxA family of integrated-circuit supply-voltage supervisors is designed specifically for use as
reset controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitors
the supply for undervoltage conditions at the SENSE input. During power up, the RESET\ output becomes
active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above
VIT+), the delay timer function activates a time delay, after which outputs RESET\ and RESET go inactive
(high and low, respectively). When an undervoltage condition occurs during normal operation, RESET\
and RESET go active. To ensure that a complete reset occurs, the reset outputs remain active for a time
delay after the voltage at the SENSE input exceeds the positive-going threshold value. The time delay is
determined by the value of the external capacitor C T: td= 1.3 × 104 × C T, where C T is in farads (F) and td
is in seconds (s).
During power down and when SENSE is below VIT–, the outputs remain active until VCC falls below 2 V.
After this, the outputs are undefined.
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相关代理商/技术参数 |
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| 59628868501PA | 制造商:TI 功能描述:* |
| 5962-8868501PA | 制造商:Texas Instruments 功能描述: |
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