AP1704FWG-7 Equivalent & Substitute Parts

Part Overview

The AP1704FWG-7 is a Power Management Integrated Circuit (PMIC) supervisor manufactured by Diodes Incorporated. This device functions as a simple reset/power-on reset supervisor with push-pull, totem pole output configuration, monitoring a single voltage channel. The part is classified as Obsolete, which necessitates identification of equivalent and substitute components for ongoing system support and new design considerations.

Substiute Parts

AP1704FWG-7

Diodes IncorporatedIn Stock: 6175AP1704FWG-7 Datasheet

Current PartRFQ

APX810-29SRG-7

Diodes IncorporatedIn Stock: 17398APX810-29SRG-7 Datasheet

DirectRFQ

AP1702FWG-7

Diodes IncorporatedIn Stock: 1358AP1702FWG-7 Datasheet

Parametric EquivalentRFQ

AP1704FWG-7

Diodes IncorporatedIn Stock: 6175AP1704FWG-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AP1704FWG-7 is determined by the following critical parameters:

Primary Substitution Criteria:

• Type: Simple Reset/Power-On Reset supervisor functionality
• Number of Voltages Monitored: 1 channel
• Output Configuration: Push-Pull, Totem Pole
• Reset Logic: Active High
• Package Compatibility: TO-236-3, SC-59, SOT-23-3 family
• Mounting Type: Surface Mount

Secondary Compatibility Parameters:

• Voltage Threshold: 2.63V (exact match preferred; variations indicate different voltage monitoring points)
• Reset Timeout: 100ms Minimum (timing specifications must meet or exceed application requirements)
• Operating Temperature Range: 0°C ~ 70°C (application-dependent; extended range substitutes acceptable if system operates within specified limits)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The APX810-29SRG-7 qualifies as a direct functional substitute, sharing identical output configuration, reset logic, and single-channel monitoring architecture. Parametric equivalents such as AP1702FWG-7 maintain identical electrical specifications and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Existing System Support (AP1704FWG-7 Replacement):

The AP1702FWG-7 serves as the primary parametric equivalent, offering identical voltage threshold (2.63V), reset timeout (100ms minimum), and operating temperature range (0°C ~ 70°C). Both parts maintain ROHS3 compliance and REACH unaffected status. This substitution preserves all electrical and thermal specifications of the original design.

For Extended Operating Conditions:

The APX810-29SRG-7 provides expanded operating temperature range (-40°C ~ 85°C) and superior moisture sensitivity rating (MSL 1 vs. MSL 3). This substitute accommodates applications requiring broader environmental tolerance. The voltage threshold differential (2.93V vs. 2.63V) and extended reset timeout (140ms vs. 100ms) represent measurable parameter variations that must align with application requirements.

Compliance Considerations:

All identified substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. Product status designations (Obsolete or Not For New Designs) reflect manufacturing lifecycle positions and do not preclude functional substitution in existing systems.

Frequently Asked Questions (FAQ)

Q: Can the APX810-29SRG-7 directly replace the AP1704FWG-7 in existing designs?

A: The APX810-29SRG-7 shares identical output configuration (push-pull, totem pole), reset logic (active high), and single-channel monitoring architecture. However, the voltage threshold differs (2.93V vs. 2.63V) and reset timeout extends (140ms vs. 100ms). Substitution is valid only when application voltage monitoring and timing specifications accommodate these parameter variations.

Q: What is the significance of the voltage threshold difference between AP1704FWG-7 (2.63V) and APX810-29SRG-7 (2.93V)?

A: The voltage threshold defines the supply voltage level at which the supervisor triggers a reset signal. A higher threshold (2.93V) means the reset activates at a higher supply voltage. Applications designed for 2.63V threshold operation require verification that system behavior remains acceptable at the 2.93V threshold point.

Q: Are there package compatibility concerns when substituting these parts?

A: All identified substitutes utilize the same package family (TO-236-3, SC-59, SOT-23-3). Physical footprint compatibility is maintained across direct substitutes and parametric equivalents. Supplier device package designations (SC-59-3 vs. SOT23R) reflect manufacturer packaging nomenclature but represent equivalent physical form factors.

Q: How does the moisture sensitivity level (MSL) rating affect component selection?

A: MSL 3 (168 Hours) indicates the component tolerates moisture exposure for 168 hours before baking is required. MSL 1 (Unlimited) represents superior moisture resistance. The APX810-29SRG-7 offers enhanced moisture tolerance, beneficial for applications with extended storage or high-humidity environments. Original AP1704FWG-7 specifications must be observed if MSL 3 handling procedures are already established in manufacturing workflows.

Q: Why is the AP1704FWG-7 classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The AP1702FWG-7 provides parametric equivalence for ongoing system support. The APX810-29SRG-7, classified as Not For New Designs, remains available but is not recommended for new product development.