MAX690A：Microprocessor Supervisory Circuits
Industry-Standard, Full-Function uP Supervisor
The MAX690A/MAX692A/MAX802L/MAX802M/MAX805L reduce the complexity and number of components required for power-supply monitoring and battery-control functions in microprocessor (µP) systems. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. These parts provide four functions: 1) A reset output during power-up, power-down, and brownout conditions. 2) Battery-backup switching for CMOS RAM, CMOS µP, or other low-power logic. 3) A reset pulse if the optional watchdog timer has not been toggled within 1.6sec. 4) A 1.25V threshold detector for power-fail warning or low-battery detection, or to monitor a power supply other than +5V. The parts differ in their reset-voltage threshold levels and reset outputs. The MAX690A/MAX802L/MAX805L generate a reset pulse when the supply voltage drops below 4.65V, and the MAX692A/MAX802M generate a reset below 4.40V. The MAX802L/MAX802M guarantee power-fail accuracies to ±2%. The MAX805L is the same as the MAX690A except that RESET is provided instead of active-low RESET. All parts are available in 8-pin DIP and SO packages. The MAX690A/MAX802L are pin compatible with the MAX690 and MAX694. The MAX692A/MAX802M are pin compatible with the MAX692.
Key Features
| MAX690A, MAX692A, MAX802L, MAX802M, MAX805L: Typical Operating Circuit Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX690A-MAX805L Data Sheet | MAX690A-MAX805L.pdf |
Parametrics
| Part Number | Reset Thresh. (V) | Reset Out | ICC (µA) | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|
| max | See Notes | |||||
| MAX690A | 4.5 to 5.0 | Active Low Push-Pull | 350 | -55 to +125 -40 to +85 0 to +70 | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $3.88 @1k |
| MAX692A | 4.0 to 4.5 | Active Low Push-Pull | -55 to +125 -40 to +85 0 to +70 | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $4.37 @1k | |
| MAX802L | 4.5 to 5.0 | Active Low Push-Pull | -40 to +85 0 to +70 | PDIP(N)/8 SOIC(N)/8 | $4.04 @1k | |
| MAX802M | 4.0 to 4.5 | Active Low Push-Pull | -40 to +85 0 to +70 | PDIP(N)/8 SOIC(N)/8 | $6.22 @1k | |
| MAX805L | 4.5 to 5.0 | Active High Push-Pull | -55 to +125 -40 to +85 0 to +70 | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $3.55 @1k | |
Quality and Environmental Data
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX690AC/D | No Longer Available | DICE SALES,;NA pin;DICE; | 0°C to +70°C | See data sheet | |
| MAX690ACPA | No Longer Available | MAX690ACPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX690ACPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX690ACSA | No Longer Available | MAX690ACSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX690ACSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX690ACSA+T | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX690ACSA-T | No Longer Available | MAX690ACSA+T | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX690AEJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -40°C to +85°C | No | |
| MAX690AEPA | No Longer Available | MAX690AEPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| MAX690AEPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX690AESA | No Longer Available | MAX690AESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX690AESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX690AESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX690AESA-T | No Longer Available | MAX690AESA+T | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX690AESA/GG8 | Active | SOIC (; | -40°C to +85°C | See data sheet | |
| MAX690AESA/GH9 | No Longer Available | MAX690AESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX690AESA/GH9-T | No Longer Available | MAX690AESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX690AMJA | Active | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No | |
| MAX690AMJA/883B | Active | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No |
- MAX690A-MAX805L.pdf MAX805L
- MAX690A.pdf MAX690A
