Product Summary

The MAX690CPA+ is a supervisory circuit. It reduces the complexity and number of components required for power supply monitoring and battery control functions in microprocessor systems. These include μP reset and backup-battery switchover, watchdog timer, CMOS RAM write protection, and power-failure warning. The MAX690CPA+ significantly improves system reliability and accuracy compared to that obtainable with separate ICs or discrete components. The applications of the MAX690CPA+ include computers, controller, inteligent instruments, automotive systems and critical μP power monitoring.

Parametrics

MAX690CPA+ absolute maximum ratings: (1)terminal voltage with respect to GND, VCC: -0.3 to 6.0V; VBATT: -0.3 to 6.0V; all other inputs: -0.3 to VOUT+0.5V; (2)input current, VCC: 200mA; VBATT: 50mA; GND: 20mA; (3)output current, VOUT: short circuit protected; all other outputs: 20mA; (4)rate-of-rise, VBATT, VCC: 100V/μs; (5)operating temperature range: 0 to 70℃; (6)power dissipation: 400mW; (7)storage temperature range: -65 to 160℃; (8)lead temeprature (soldering, 10s): 300℃.

Features

MAX690CPA+ features: (1)precision voltage monitor; (2)power OK/Reset time delay: 50, 200ms, or adjustable; (3)watchdog timer: 100ms, 1.6sec, or adjustable; (4)minimum component count; (5)1μA standby current; (6)battery backup power switching; (7)onboard gating of chip enable signals; (8)voltage monitor for power fail or low battery warning.

Diagrams

MAX690CPA+ pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
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MAX690CPA+
MAX690CPA+

Maxim Integrated Products

Supervisory Circuits MPU Supervisor

Data Sheet

0-1: $4.97
1-25: $3.34
25-50: $2.42
50-100: $2.39
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX6001
MAX6001

Other


Data Sheet

Negotiable 
MAX6001EUR+T
MAX6001EUR+T

Maxim Integrated Products

Voltage & Current References Low-Power Low-Drop Voltage Ref

Data Sheet

0-1: $0.53
1-25: $0.43
25-50: $0.40
50-100: $0.38
MAX6001EUR-T
MAX6001EUR-T

Maxim Integrated Products

Voltage & Current References

Data Sheet

Negotiable 
MAX6002
MAX6002

Other


Data Sheet

Negotiable 
MAX6002EUR/V+T
MAX6002EUR/V+T

Maxim Integrated Products

Voltage & Current References Low-Power Low-Drop Voltage Ref

Data Sheet

Negotiable 
MAX6002EUR+T
MAX6002EUR+T

Maxim Integrated Products

Voltage & Current References Low-Power Low-Drop Voltage Ref

Data Sheet

0-1: $0.57
1-25: $0.43
25-50: $0.41
50-100: $0.38