MAX817LCSA+ Equivalent & Substitute Parts

Part Overview

The MAX817LCSA+ is a single-channel supervisor IC manufactured by Analog Devices Inc./Maxim Integrated, designed for battery backup circuit applications. This 8-SOIC surface-mount power management component monitors voltage levels and provides active-low reset functionality with a 140ms minimum timeout. The part is ROHS3 compliant and currently in active production status with 2000 units in stock.

Equivalent and substitute parts are necessary when the primary part is unavailable, when alternative packaging formats are required for manufacturing processes, or when extended operating temperature ranges are needed for specific application environments.

Key Parameters

Parameter	Specification
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Power Management (PMIC)
Type	Battery Backup Circuit
Number of Voltages Monitored	1
Voltage Threshold	4.65V
Reset Type	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX817LCSA+ is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Voltage threshold: 4.65V
Number of voltages monitored: 1 channel
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Reset type: Active Low
Mounting type: Surface Mount
RoHS compliance: ROHS3 Compliant

Variable Parameters Affecting Substitution:

Output type (Open Drain/Open Collector vs. Push-Pull/Totem Pole)
Reset timeout duration (35ms vs. 140ms minimum)
Operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C)
Packaging format (Tube vs. Tape & Reel vs. Cut Tape)

Substitute parts are grouped into two categories: parametric equivalents with identical core functionality and manufacturer-recommended alternatives with extended operating ranges or different output configurations.

Parameter Comparison

Part Number	Manufacturer	Output Type	Reset Timeout	Operating Temperature	Package Format	Inventory
MAX817LCSA+	Analog Devices Inc./Maxim Integrated	—	140ms Minimum	0°C ~ 70°C	Tube	2000 Pcs
MAX690ACSA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	140ms Minimum	0°C ~ 70°C	Tube	4200 Pcs
MAX703CSA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	140ms Minimum	0°C ~ 70°C	Tube	2900 Pcs
ADM690AARNZ	Analog Devices Inc.	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Tube	1435 Pcs
ADM690AARNZ-REEL	Analog Devices Inc.	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Cut Tape & Digi-Reel	10300 Pcs
ADM802LARNZ	Analog Devices Inc.	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Tube	50100 Pcs
ADM802LARNZ-REEL	Analog Devices Inc.	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Tape & Reel	980 Pcs
ADM8690ARNZ	Analog Devices Inc.	Push-Pull, Totem Pole	35ms Minimum	-40°C ~ 85°C	Tube	2200 Pcs
LTC690CS8#PBF	Analog Devices Inc.	Open Drain or Open Collector	35ms Minimum	0°C ~ 70°C	Tube	1845 Pcs
LTC690CS8#TRPBF	Analog Devices Inc.	Open Drain or Open Collector	35ms Minimum	0°C ~ 70°C	Tape & Reel	2013 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Operating Conditions): MAX690ACSA+ and MAX703CSA+ are parametric equivalents with matching voltage thresholds, reset timeouts, and operating temperature ranges. Both maintain ROHS3 compliance and MSL 1 rating. Selection between these and the primary part depends on output configuration requirements and inventory availability.

For Extended Temperature Range Applications: ADM690AARNZ, ADM690AARNZ-REEL, ADM802LARNZ, ADM802LARNZ-REEL, and ADM8690ARNZ support -40°C ~ 85°C operating temperatures, suitable for industrial and automotive environments. All maintain ROHS3 compliance and MSL 1 rating. ADM802LARNZ offers the highest inventory availability (50100 units).

For Packaging Format Alternatives: Tape & Reel and Cut Tape formats are available through ADM690AARNZ-REEL, ADM802LARNZ-REEL, and LTC690CS8#TRPBF for high-volume automated assembly processes. Tube packaging remains standard for lower-volume applications.

For Faster Reset Timeout Requirements: ADM8690ARNZ and LTC690CS8#PBF provide 35ms minimum reset timeout compared to 140ms in the primary part. These are suitable only when faster reset response is functionally required.

All substitute parts are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification matching the primary part specifications.

Frequently Asked Questions (FAQ)

Q: Can MAX690ACSA+ directly replace MAX817LCSA+ in existing designs? A: MAX690ACSA+ shares the same voltage threshold (4.65V), reset type (Active Low), reset timeout (140ms minimum), operating temperature range (0°C ~ 70°C), and 8-SOIC package. The primary difference is output configuration (Push-Pull/Totem Pole vs. unspecified). Verify output compatibility with your circuit design before substitution.

Q: What is the difference between ADM802LARNZ and ADM690AARNZ? A: Both parts support -40°C ~ 85°C operating temperature and 140ms reset timeout. ADM802LARNZ has significantly higher inventory (50100 units vs. 1435 units) and is recommended for applications requiring extended temperature range with standard availability.

Q: Why do some parts have different reset timeout values? A: Reset timeout determines how long the supervisor holds the reset signal active after power stabilization. ADM8690ARNZ and LTC690CS8 series provide 35ms minimum timeout versus 140ms in other parts. Use 35ms variants only when faster reset response is required by system specifications.

Q: Are Tape & Reel packaged parts functionally identical to Tube packaged parts? A: Yes. ADM690AARNZ-REEL, ADM802LARNZ-REEL, and LTC690CS8#TRPBF are functionally identical to their Tube counterparts. Packaging format selection depends on manufacturing process requirements (automated pick-and-place vs. manual assembly).

Q: Which substitute part has the best inventory availability? A: ADM802LARNZ offers the highest inventory with 50100 units in stock. This part supports extended operating temperature (-40°C ~ 85°C) and 140ms reset timeout, making it suitable for most applications requiring the primary part specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, matching the primary part's environmental and regulatory certifications.

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