DS1706LESA/T&R Equivalent & Substitute Parts

Part Overview

The DS1706LESA/T&R is a supervisor integrated circuit manufactured by Analog Devices Inc./Maxim Integrated, classified as a Power Management PMIC. This device functions as a simple reset/power-on reset supervisor with push-pull, totem pole output configuration, monitoring a single voltage channel at 4.65V threshold. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Substitute parts must maintain functional equivalence in reset supervision, output topology, and package form factor while meeting current compliance and availability requirements.

Substiute Parts

DS1706LESA/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 987DS1706LESA/T&R Datasheet

Current PartRFQ

DS1706LESA+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 977DS1706LESA+T&R Datasheet

DirectRFQ

SP705CN-L/TR

MaxLinear, Inc.In Stock: 1425SP705CN-L/TR Datasheet

MFR RecommendedRFQ

SP705EN-L/TR

MaxLinear, Inc.In Stock: 34075SP705EN-L/TR Datasheet

MFR RecommendedRFQ

SP813LEN-L/TR

MaxLinear, Inc.In Stock: 17855SP813LEN-L/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS1706LESA/T&R are selected based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Single voltage channel monitoring at 4.65V threshold
• 8-SOIC surface mount package (0.154", 3.90mm Width)
• Simple reset/power-on reset functionality
• Operating temperature range capability

Secondary Compatibility Factors:

• Reset polarity (Active High vs. Active Low)
• Reset timeout duration (130ms minimum baseline)
• Output configuration (Push-Pull, Totem Pole)
• Product status and compliance certifications

The substitute parts are grouped into two categories: direct equivalents maintaining identical electrical characteristics, and functional alternatives with minor parameter variations that remain suitable for reset supervision applications.

Parameter Comparison

Engineering Selection Recommendations

DS1706LESA+T&R is the primary direct substitute for DS1706LESA/T&R. This part maintains identical electrical specifications including 4.65V threshold, active high reset polarity, and 130ms reset timeout. The primary distinction is product status: DS1706LESA+T&R is active and ROHS3 compliant, whereas the original part is obsolete and RoHS non-compliant. This substitute provides continuity for designs requiring the exact electrical characteristics of the original part with improved compliance posture.

SP813LEN-L/TR is a functional substitute suitable for applications where active high reset polarity is required. This MaxLinear part maintains the 4.65V threshold, active high reset configuration, and full -40°C to 85°C operating temperature range. The reset timeout is 140ms minimum, representing a 10ms increase from the original specification. This part is RoHS compliant and carries active product status with substantial inventory availability.

SP705EN-L/TR is a functional substitute for applications tolerant of active low reset polarity. This part maintains the 4.65V threshold and full -40°C to 85°C operating temperature range. The reset timeout is 140ms minimum. This substitute is ROHS3 compliant with the highest inventory availability among all listed alternatives.

SP705CN-L/TR is a functional substitute limited to applications with 0°C to 70°C operating temperature requirements. This part maintains the 4.65V threshold and active low reset polarity with 140ms reset timeout. Selection of this part requires confirmation that the narrower operating temperature range is acceptable for the target application.

Frequently Asked Questions (FAQ)

Q: Can DS1706LESA+T&R be used as a direct replacement for DS1706LESA/T&R?

A: Yes. DS1706LESA+T&R maintains identical electrical specifications including voltage threshold, reset polarity, reset timeout, and operating temperature range. The primary difference is product status and RoHS compliance. Both parts use the same 8-SOIC package and are functionally equivalent for reset supervision applications.

Q: What is the difference between active high and active low reset polarity?

A: Reset polarity determines the logic state that triggers a reset condition. Active high reset means the reset signal activates when the output goes high; active low reset activates when the output goes low. Circuit design must accommodate the selected polarity. DS1706LESA/T&R and SP813LEN-L/TR use active high reset, while SP705CN-L/TR and SP705EN-L/TR use active low reset.

Q: Can SP705CN-L/TR be used in applications requiring -40°C to 85°C operation?

A: No. SP705CN-L/TR is rated for 0°C to 70°C operating temperature only. Applications requiring full -40°C to 85°C operation must use DS1706LESA+T&R, SP813LEN-L/TR, or SP705EN-L/TR.

Q: What is the significance of the 10ms difference in reset timeout between the original part and MaxLinear substitutes?

A: The original DS1706LESA/T&R specifies 130ms minimum reset timeout, while SP705 and SP813 series parts specify 140ms minimum. This 10ms difference represents a longer power-on reset assertion period. Circuit designs must verify that the extended timeout does not conflict with system initialization requirements.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. All listed substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, enabling direct PCB footprint compatibility with the original DS1706LESA/T&R design.

Q: What compliance certifications apply to these supervisor parts?

A: DS1706LESA/T&R is RoHS non-compliant. DS1706LESA+T&R is ROHS3 compliant. SP705CN-L/TR and SP813LEN-L/TR are RoHS compliant. SP705EN-L/TR is ROHS3 compliant. All parts are REACH unaffected and classified as EAR99 for export control purposes.