SP705CN-L/TR Equivalent & Substitute Parts

Part Overview

The SP705CN-L/TR is a single-channel power supply supervisor IC manufactured by MaxLinear, Inc., designed for power management applications requiring reset signal generation and voltage monitoring. This device operates as a simple reset/power-on reset supervisor with an active-low reset output, housed in an 8-SOIC surface-mount package. The part is currently in active production status with RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and functional equivalence within the power management supervisor category. Substitutes maintain the same voltage threshold monitoring capability (4.65V), reset polarity requirements, and physical package dimensions while offering variations in output configuration, operating temperature range, and packaging format.

Key Parameters

Parameter	SP705CN-L/TR Specification
Manufacturer	MaxLinear, Inc.
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.65V
Reset Output	Active Low
Reset Timeout	140ms Minimum
Operating Temperature Range	0°C ~ 70°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Packaging Format	Tape & Reel (TR)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the SP705CN-L/TR are qualified based on the following critical parameters that determine functional equivalence:

Core Matching Criteria:

Voltage threshold: 4.65V (all substitutes match)
Package type: 8-SOIC with 0.154" width / 3.90mm width (all substitutes match)
Mounting type: Surface mount (all substitutes match)
Number of voltages monitored: 1 channel (all substitutes match)
Reset polarity: Active low (primary substitutes) or active high (DS1706LESA+ variant)
Reset timeout: 140ms minimum (SP705CN-L/TR and MAX705 series) or 160ms minimum (ADM705 series) or 130ms minimum (DS1706LESA+)
Operating temperature: 0°C ~ 70°C (SP705CN-L/TR and MAX705CSA+/MAX705CSA+T) or -40°C ~ 85°C (extended range alternatives)
Output configuration: Open-drain/simple output (SP705CN-L/TR, MIC705 series) or push-pull/totem-pole output (ADM705 series, MAX705 series, DS1706LESA+)

Substitutes are grouped into two functional categories: direct replacements with matching output characteristics and functional equivalents with enhanced output drive capability (push-pull configuration). All substitutes maintain the same 8-SOIC package footprint and are available in multiple packaging formats (tube, cut tape, tape & reel).

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Reset Output	Reset Timeout	Operating Temperature	Output Type	Package Format	RoHS Status
SP705CN-L/TR	MaxLinear, Inc.	4.65V	Active Low	140ms Min	0°C ~ 70°C	Open-Drain	Tape & Reel	RoHS Compliant
MAX705CSA+	Analog Devices Inc./Maxim Integrated	4.65V	Active Low	140ms Min	0°C ~ 70°C	Push-Pull	Tube	ROHS3 Compliant
MAX705CSA+T	Analog Devices Inc./Maxim Integrated	4.65V	Active Low	140ms Min	0°C ~ 70°C	Push-Pull	Cut Tape & Digi-Reel	ROHS3 Compliant
MAX705ESA+	Analog Devices Inc./Maxim Integrated	4.65V	Active Low	140ms Min	-40°C ~ 85°C	Push-Pull	Tube	ROHS3 Compliant
MAX705ESA+T	Analog Devices Inc./Maxim Integrated	4.65V	Active Low	140ms Min	-40°C ~ 85°C	Push-Pull	Cut Tape & Digi-Reel	ROHS3 Compliant
ADM705ARZ	Analog Devices Inc.	4.65V	Active Low	160ms Min	-40°C ~ 85°C	Push-Pull	Tube	ROHS3 Compliant
ADM705ARZ-REEL	Analog Devices Inc.	4.65V	Active Low	160ms Min	-40°C ~ 85°C	Push-Pull	Cut Tape & Digi-Reel	ROHS3 Compliant
ADM705ARZ-REEL7	Analog Devices Inc.	4.65V	Active Low	160ms Min	-40°C ~ 85°C	Push-Pull	Cut Tape & Digi-Reel	ROHS3 Compliant
DS1706LESA+	Analog Devices Inc./Maxim Integrated	4.65V	Active High	130ms Min	-40°C ~ 85°C	Push-Pull	Tube	ROHS3 Compliant
MIC705MY	Microchip Technology	4.65V	Active Low	140ms Min	-40°C ~ 85°C	Open-Drain	Tube	ROHS3 Compliant
MIC705MY-TR	Microchip Technology	4.65V	Active Low	140ms Min	-40°C ~ 85°C	Open-Drain	Tape & Reel	ROHS3 Compliant

Engineering Selection Recommendations

Direct Functional Equivalents (Matching Output Configuration):

MIC705MY and MIC705MY-TR are direct functional equivalents to SP705CN-L/TR, maintaining identical open-drain output configuration, active-low reset polarity, and 140ms reset timeout specification. Both parts are manufactured by Microchip Technology and carry ROHS3 compliance. MIC705MY-TR provides tape & reel packaging identical to the original part format. The MIC705 series extends operating temperature range to -40°C ~ 85°C, providing enhanced thermal performance for applications requiring extended temperature operation.

Enhanced Output Drive Capability Substitutes:

MAX705 series (MAX705CSA+, MAX705CSA+T, MAX705ESA+, MAX705ESA+T) and ADM705 series (ADM705ARZ, ADM705ARZ-REEL, ADM705ARZ-REEL7) provide push-pull/totem-pole output configuration in place of the open-drain output. These substitutes maintain 4.65V threshold and active-low reset polarity. MAX705 variants match the 140ms reset timeout and are available in both standard (0°C ~ 70°C) and extended (−40°C ~ 85°C) temperature grades. ADM705 variants specify 160ms reset timeout and operate across −40°C ~ 85°C temperature range. Push-pull output configuration provides higher output drive current compared to open-drain topology.

Alternative Reset Polarity:

DS1706LESA+ (MicroMonitor™ series) operates with active-high reset output, differing from the active-low reset requirement of SP705CN-L/TR. This part is suitable only for applications designed to accept active-high reset signaling. DS1706LESA+ specifies 130ms reset timeout and operates across −40°C ~ 85°C temperature range with push-pull output configuration.

Packaging Format Considerations:

All substitutes are available in 8-SOIC package matching the original footprint. Packaging format variations include tube, cut tape & Digi-Reel, and tape & reel options. Selection should align with assembly process requirements and inventory management practices.

Compliance and Product Status:

All substitute parts maintain active product status with ROHS3 compliance certification. The original SP705CN-L/TR carries RoHS Compliant status. All parts are rated MSL 1 (unlimited moisture sensitivity), indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can MAX705 series parts directly replace SP705CN-L/TR without circuit modification?

A: MAX705 series parts maintain identical voltage threshold (4.65V), reset polarity (active low), and reset timeout (140ms for MAX705 variants). The primary difference is output configuration: MAX705 provides push-pull output versus the open-drain output of SP705CN-L/TR. Direct substitution is possible in applications where the reset input accepts push-pull drive levels. Applications designed specifically for open-drain output may require pull-up resistor adjustment or circuit redesign.

Q: What is the difference between ADM705ARZ, ADM705ARZ-REEL, and ADM705ARZ-REEL7?

A: All three ADM705 variants are functionally identical with 4.65V threshold, active-low reset, and 160ms reset timeout. Differences are limited to packaging format: ADM705ARZ is supplied in tube packaging, while ADM705ARZ-REEL and ADM705ARZ-REEL7 are supplied in cut tape & Digi-Reel format. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Is DS1706LESA+ compatible with SP705CN-L/TR applications?

A: DS1706LESA+ shares the same 4.65V voltage threshold and 8-SOIC package footprint. However, DS1706LESA+ operates with active-high reset output, whereas SP705CN-L/TR uses active-low reset. Substitution requires circuit redesign to accommodate the inverted reset polarity. Additionally, DS1706LESA+ specifies 130ms reset timeout compared to 140ms for SP705CN-L/TR.

Q: What are the temperature range implications when selecting between standard and extended-range variants?

A: SP705CN-L/TR operates across 0°C ~ 70°C. MAX705CSA+ and MAX705CSA+T match this range. Extended-range variants (MAX705ESA+, MAX705ESA+T, ADM705 series, MIC705 series) operate across −40°C ~ 85°C, providing operation in wider environmental conditions. Selection should align with application thermal requirements and system operating envelope.

Q: Can MIC705MY replace SP705CN-L/TR in tape & reel format applications?

A: MIC705MY is supplied in tube format. MIC705MY-TR is the tape & reel equivalent, matching the packaging format of SP705CN-L/TR. Both maintain identical open-drain output configuration, active-low reset, and 140ms reset timeout. MIC705MY-TR is the appropriate selection for applications requiring tape & reel packaging.

Q: What output drive capability differences exist between open-drain and push-pull configurations?

A: SP705CN-L/TR and MIC705 series provide open-drain output, requiring external pull-up resistor to establish high-level output voltage. MAX705 and ADM705 series provide push-pull/totem-pole output with integrated pull-up and pull-down transistors, delivering higher output drive current without external pull-up components. Push-pull configuration is suitable for applications requiring faster reset signal transitions or driving multiple logic inputs.

Q: Are all substitute parts RoHS compliant?

A: SP705CN-L/TR carries RoHS Compliant status. All substitute parts carry ROHS3 Compliant certification, which represents the current RoHS compliance standard. Both designations indicate compliance with hazardous substance restrictions.

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