ADM8690ADM8695

Upgrade for ADM690/ADM695, MAX690MAX695 Specified Over Temperature Low Power Consumption (0.7 mW)
Precision Voltage Monitor Reset Assertion Down to 1 V V_CC Low Switch On-Resistance 0.7   Normal, 7   in Backup
High Current Drive (100 mA) Watchdog Timer-100 ms, 1.6 s, or Adjustable 400 nA Standby Current  Automatic Battery Backup Power Switching Extremely Fast Gating of Chip Enable Signals (3 ns) Voltage Monitor for Power Fail Available in TSSOP Package

V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.3 V to +6 V
V_BATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +6 V
All Other Inputs . . . . . . . . . . . . . . . . . 0.3 V to V_OUT + 0.5 V
Input Current
V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 mA
V_BATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Power Dissipation, N-8 DIP . . . . . . . . . . . . . . . . . . . . 400 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 120°C/W
Power Dissipation, N-16 DIP . . . . . . . . . . . . . . . . . . . 600 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 135°C/W
Power Dissipation, RU-16 DIP . . . . . . . . . . . . . . . . . . 600 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 158°C/W
Power Dissipation, R-16 SOIC . . . . . . . . . . . . . . . . . . 600 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 110°C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . 40°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . .55°C to +125°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C

*Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum ratings for extended periods of time may affect device reliability.

The ADM8690ADM8695 family of supervisory circuits offers complete single chip solutions for power supply  onitoring and battery control functions in microprocessor systems. These functions include mP reset, backup battery switchover, watchdog timer, CMOS RAM write protection and power failure warning.

The complete ADM8690ADM8695 family provides a variety of configurations to satisfy most microprocessor system requirements.
TheADM8690ADM8695 are available in 8-pin DIP packages and provide:
1. Power-on reset output during power-up, power-down and brownout conditions. The RESET output remains operational with VCC as low as 1 V.
2. Battery backup switching for CMOS RAM, CMOS microprocessor or other low power logic.
3. A reset pulse if the optional watchdog timer has not been toggled within a specified time.
4. A 1.3 V threshold detector for power fail warning, low battery detection or to monitor a power supply other than +5 V.

The ADM8690ADM8695 are available in 16-pin DIP and small outline packages (including TSSOP) and
provide three additional functions:
1. Write protection of CMOS RAM or EEPROM.
2. Adjustable reset and watchdog timeout periods.
3. Separate watchdog timeout, backup battery switchover, and low VCC status outputs.