Low

LTC690CS8#PBF - 

Microcontroller Supervisor, Active-High, Active-Low Reset, 4.75V-5.5Vin, SOIC-8

LINEAR TECHNOLOGY LTC690CS8#PBF

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LTC690CS8#PBF
Order Code:
2295462
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC690CS8#PBF is a microprocessor Supervisory Circuit provides complete power supply monitoring and battery control functions for microprocessor reset, battery backup, CMOS RAM write protection, power failure warning and watchdog timing. A precise internal voltage reference and comparator circuit monitors the power supply line. When an out-of-tolerance condition occurs, the reset outputs are forced to active states and the chip enable output unconditionally write-protects external memory. In addition, the RESET output is guaranteed to remain logic low even with VCC as low as 1V. The LTC690 family powers the active CMOS RAMs with a charge pumped NMOS power switch to achieve low dropout and low supply current. When primary power is lost, auxiliary power, connected to the battery input pin, powers the RAMs in standby through an efficient PMOS switch. For an early warning of impending power failure, the LTC690 family provides an internal comparator with user-defined threshold.
  • Minimum external component count
  • Voltage monitor for power-fail or low-battery warning
  • Thermal limiting
  • Performance specified over-temperature
  • Superior upgrade for MAX690 family
  • Fast (35ns maximum) onboard gating of RAM chip enable signals
  • 1.5mA Maximum supply current
  • 1µA Maximum standby current

Applications

Sensing & Instrumentation, Computers & Computer Peripherals, Automation & Process Control, Automotive

Product Information

:
4.65V
:
1Monitors
:
4.75V
:
5.5V
:
Active-High, Active-Low
:
SOIC
:
8Pins
:
50ms
:
0°C
:
70°C
:
Each
:
-
:
-
:
MSL 1 - Unlimited
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