MAX709LCPA Equivalent & Substitute Parts

Part Overview

The MAX709LCPA is a single-channel power supply supervisor IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power-on reset and simple reset applications. This device monitors a single voltage threshold and provides push-pull, totem pole output control with active-low reset functionality. The MAX709LCPA is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Substitute parts maintain identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Key Parameters

Parameter	Specification
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage Threshold	4.65V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	140ms Minimum
Operating Temperature Range	0°C ~ 70°C (TA)
Package Type	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX709LCPA is determined by strict equivalence across the following critical parameters:

Single voltage monitoring channel with 4.65V threshold
Push-pull, totem pole output configuration
Active-low reset logic with 140ms minimum timeout
0°C to 70°C operating temperature range
8-DIP through-hole package (0.300", 7.62mm)
Unlimited moisture sensitivity level (MSL 1)

Two substitute parts meet these criteria: MAX709LCPA+ (direct manufacturer equivalent with improved product status) and MAX705CPA+ (parametric equivalent from the same manufacturer base series). Both maintain identical electrical performance and mechanical compatibility with the original MAX709LCPA specification.

Parameter Comparison

Parameter	MAX709LCPA	MAX709LCPA+	MAX705CPA+
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active	Active
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset
Number of Voltages Monitored	1	1	1
Voltage Threshold	4.65V	4.65V	4.65V
Output Configuration	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
Reset Logic	Active Low	Active Low	Active Low
Reset Timeout	140ms Minimum	140ms Minimum	140ms Minimum
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

MAX709LCPA+ is the primary substitute for direct replacement applications. This part maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. The transition from obsolete to active status ensures continued manufacturer support and supply chain availability.

MAX705CPA+ serves as a parametric equivalent for applications where the MAX709 base series is interchangeable. This part provides identical functional performance with the same compliance certifications and active product status. Selection between MAX709LCPA+ and MAX705CPA+ depends on design documentation requirements and existing part qualification records.

Both substitute parts are ROHS3 compliant, addressing environmental and regulatory requirements that the original MAX709LCPA does not meet. Inventory availability is confirmed for both alternatives, supporting immediate procurement for production and repair applications.

Frequently Asked Questions (FAQ)

Q: Can MAX709LCPA+ be used as a direct replacement for MAX709LCPA?

A: Yes. MAX709LCPA+ maintains identical electrical performance, voltage threshold (4.65V), output configuration (push-pull, totem pole), reset logic (active low), and 8-DIP through-hole package. The primary difference is product status (active versus obsolete) and ROHS3 compliance.

Q: What is the difference between MAX709LCPA+ and MAX705CPA+?

A: Both parts are parametric equivalents with identical electrical specifications and package configuration. The difference lies in the base product number (MAX709 versus MAX705). Both are active products with ROHS3 compliance and equivalent inventory availability.

Q: Are there any package or pinout differences between these parts?

A: No. All three parts use the same 8-DIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical compatibility.

Q: Does the voltage threshold remain the same across all substitute parts?

A: Yes. The voltage threshold is fixed at 4.65V for MAX709LCPA, MAX709LCPA+, and MAX705CPA+. This parameter is not variable across the substitute group.

Q: What is the reset timeout specification for these supervisor ICs?

A: The reset timeout is 140ms minimum for all three parts. This timing parameter is identical across MAX709LCPA, MAX709LCPA+, and MAX705CPA+.

Q: Are there compliance or certification differences between the original and substitute parts?

A: Yes. MAX709LCPA is RoHS non-compliant, while both MAX709LCPA+ and MAX705CPA+ are ROHS3 compliant. All three parts maintain REACH Unaffected and EAR99 ECCN classifications.

Q: What is the operating temperature range for these parts?

A: The operating temperature range is 0°C to 70°C (TA) for all three parts. This specification is consistent across MAX709LCPA, MAX709LCPA+, and MAX705CPA+.

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