MAX802LCPA+ Equivalent & Substitute Parts

Part Overview

The MAX802LCPA+ is a single-channel supervisor IC with push-pull totem pole output, designed for battery backup circuit applications. Manufactured by Analog Devices Inc./Maxim Integrated, this component monitors a single voltage threshold at 4.65V with an active-low reset and 140ms minimum reset timeout. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX802LCPA+
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Power Management (PMIC)
Type	Battery Backup Circuit
Number of Voltages Monitored	1
Voltage - Threshold	4.65V
Output Type	Push-Pull, Totem Pole
Reset	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX802LCPA+ is determined by strict alignment of the following critical parameters:

Voltage Threshold: 4.65V (all substitutes must match)
Number of Voltages Monitored: 1 channel
Package / Case: 8-DIP (0.300", 7.62mm)
Mounting Type: Through Hole
Reset Polarity: Active Low
Reset Timeout: 140ms Minimum
Output Configuration: Push-Pull, Totem Pole (primary requirement) or Open Drain/Open Collector (alternative output type)

Substitute parts are grouped into two categories:

Parametric Equivalents (MAX690ACPA+, MAX694CPA+, MAX703CPA+): These parts maintain identical electrical specifications including push-pull totem pole output, 4.65V threshold, active-low reset, and 140ms reset timeout. These are direct functional replacements with active product status.

Manufacturer Recommended Alternatives (ADM690AANZ, ADM690ANZ, LTC690CN8#PBF, LTC690IN8#PBF, LTC694CN8#PBF, LTC694IN8#PBF): These parts share the core voltage monitoring function, 4.65V threshold, and 8-DIP package but may differ in output type (open drain/open collector), reset timeout specifications, or operating temperature range. Selection depends on circuit design requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset	Reset Timeout	Operating Temperature	Product Status	Package
MAX802LCPA+	Analog Devices Inc./Maxim Integrated	4.65V	Push-Pull, Totem Pole	Active Low	140ms Minimum	0°C ~ 70°C	Obsolete	8-DIP
MAX690ACPA+	Analog Devices Inc./Maxim Integrated	4.65V	Push-Pull, Totem Pole	Active Low	140ms Minimum	0°C ~ 70°C	Active	8-DIP
MAX694CPA+	Analog Devices Inc./Maxim Integrated	4.65V	Push-Pull, Totem Pole	Active Low	140ms Minimum	0°C ~ 70°C	Active	8-DIP
MAX703CPA+	Analog Devices Inc./Maxim Integrated	4.65V	Push-Pull, Totem Pole	Active Low	140ms Minimum	0°C ~ 70°C	Active	8-DIP
ADM690AANZ	Analog Devices Inc.	4.65V	Push-Pull, Totem Pole	Active Low	140ms Minimum	-40°C ~ 85°C	Active	8-DIP
ADM690ANZ	Analog Devices Inc.	4.65V	Push-Pull, Totem Pole	Active Low	35ms Minimum	-40°C ~ 85°C	Active	8-DIP
LTC690CN8#PBF	Analog Devices Inc.	4.65V	Open Drain or Open Collector	Active Low	35ms Minimum	0°C ~ 70°C	Active	8-DIP
LTC690IN8#PBF	Analog Devices Inc.	4.65V	Open Drain or Open Collector	Active Low	35ms Minimum	-40°C ~ 85°C	Active	8-DIP
LTC694CN8#PBF	Analog Devices Inc.	4.65V	Open Drain or Open Collector	Active High/Active Low	140ms Minimum	0°C ~ 70°C	Active	8-DIP
LTC694IN8#PBF	Linear Technology	4.65V	Open Drain or Open Collector	Active High/Active Low	140ms Minimum	-40°C ~ 85°C	Active	8-DIP

Engineering Selection Recommendations

Direct Replacement (Preferred): MAX690ACPA+, MAX694CPA+, and MAX703CPA+ are functionally identical to the MAX802LCPA+ across all critical parameters. All three are active products with ROHS3 compliance and MSL 1 rating. These parts require no circuit redesign and maintain identical electrical behavior.

Extended Temperature Range Alternative: ADM690AANZ provides identical electrical specifications to the MAX802LCPA+ with extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). This part is suitable for applications requiring wider temperature operation while maintaining push-pull totem pole output and 140ms reset timeout.

Output Type Consideration: LTC694CN8#PBF and LTC694IN8#PBF maintain the 140ms reset timeout and 4.65V threshold but employ open drain/open collector output instead of push-pull totem pole. These parts are suitable only for circuits designed to accommodate open drain output topology. LTC694IN8#PBF extends the operating temperature to -40°C ~ 85°C.

Reset Timeout Variation: ADM690ANZ and LTC690CN8#PBF feature 35ms minimum reset timeout instead of 140ms. These parts are not suitable for applications requiring the 140ms specification.

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX690ACPA+ directly replace MAX802LCPA+ without circuit modification?

A: Yes. MAX690ACPA+ matches all critical electrical parameters: 4.65V threshold, push-pull totem pole output, active-low reset, and 140ms reset timeout. The 8-DIP package and through-hole mounting are identical. No circuit redesign is required.

Q: What is the difference between push-pull totem pole and open drain output?

A: Push-pull totem pole output actively drives both high and low logic states. Open drain/open collector output only pulls low; the high state requires an external pull-up resistor. Circuits designed for push-pull output cannot directly use open drain parts without additional resistor network modifications.

Q: Why do some substitutes have different reset timeout values?

A: Reset timeout determines how long the supervisor holds the reset signal active after power stabilization. The MAX802LCPA+ specifies 140ms minimum. Parts with 35ms timeout (ADM690ANZ, LTC690CN8#PBF) are unsuitable for applications requiring the longer timeout specification.

Q: Is ADM690AANZ suitable for high-temperature applications?

A: ADM690AANZ operates from -40°C ~ 85°C, compared to the MAX802LCPA+ range of 0°C ~ 70°C. It is suitable for extended temperature applications while maintaining identical electrical specifications and push-pull output configuration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance and MSL 1 rating, meeting current environmental and manufacturing standards.

Q: Can LTC694CN8#PBF replace MAX802LCPA+ in existing designs?

A: LTC694CN8#PBF shares the 4.65V threshold and 140ms reset timeout but uses open drain output instead of push-pull totem pole. Direct substitution requires circuit redesign to accommodate the output type difference. This part is not a plug-and-play replacement.

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