AS3685A-ZDFT-2Y80 LED Driver IC Equivalent & Substitute Parts

Part Overview

The AS3685A-ZDFT-2Y80 is a Power Management IC (PMIC) classified as an LED Driver Regulator manufactured by ams-OSRAM USA INC. This device functions as a 1-output DC-DC regulator utilizing switched capacitor (charge pump) topology with 1A flash current capability, designed for camera flash applications. The part is currently listed as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production continuity.

Substiute Parts

AS3685A-ZDFT-2Y80

ams-OSRAM USA INC.In Stock: 801AS3685A-ZDFT-2Y80 Datasheet

Current PartRFQ

AS3685A-ZWLT-2Y80

ams-OSRAM USA INC.In Stock: 2491AS3685A-ZWLT-2Y80 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AS3685A-ZDFT-2Y80 is determined by strict parametric matching across the following critical criteria:

Mandatory Matching Parameters:

• Topology: Switched Capacitor (Charge Pump)
• Number of Outputs: 1
• Supply Voltage Range: 3V to 5.5V
• Output Current Capability: 1A (Flash)
• Operating Frequency: 1MHz
• Package Type: 10-VFDFN Exposed Pad
• Package Dimensions: 3x3mm
• Operating Temperature Range: -30°C to +85°C
• Mounting Type: Surface Mount
• Base Product Number: AS3685

The AS3685A-ZWLT-2Y80 meets all mandatory parametric requirements and qualifies as a direct parametric equivalent. The primary distinction between the main part and substitute is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

AS3685A-ZWLT-2Y80 as Primary Substitute:

The AS3685A-ZWLT-2Y80 is the direct parametric equivalent for the obsolete AS3685A-ZDFT-2Y80. Selection of this substitute is based on the following engineering factors:

1. Product Status Alignment: The substitute part carries Active product status, ensuring long-term availability and manufacturer support, whereas the main part is Obsolete.

2. Compliance Certification: The substitute part is explicitly certified as RoHS Compliant, providing enhanced environmental and regulatory compliance compared to the main part specification.

3. Parametric Identity: All electrical and mechanical parameters are identical across both parts, including supply voltage range (3V–5.5V), output current (1A flash), operating frequency (1MHz), package type (10-VFDFN Exposed Pad, 3x3mm), and operating temperature range (-30°C to +85°C).

4. Regulatory Equivalence: Both parts maintain identical REACH Status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8542.39.0001).

5. Inventory Availability: The substitute part demonstrates significantly higher inventory availability (2404 Pcs vs. 724 Pcs), supporting production continuity and supply chain stability.

For new designs or production transitions, the AS3685A-ZWLT-2Y80 is the appropriate selection. For existing designs currently using the AS3685A-ZDFT-2Y80, direct substitution is supported without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the AS3685A-ZWLT-2Y80 be used as a direct replacement for the AS3685A-ZDFT-2Y80 in existing designs?

A: Yes. Both parts are parametrically identical across all electrical and mechanical specifications. No circuit modifications are required. The substitute part is pin-compatible and functionally equivalent.

Q: What is the difference between the two part numbers?

A: The part numbers differ in the suffix designations (ZDFT vs. ZWLT). These designations reflect internal manufacturing or qualification variations. The functional specifications, package type, and electrical performance remain identical.

Q: Why is the main part listed as Obsolete?

A: Product obsolescence is determined by the manufacturer based on production lifecycle decisions. The AS3685A-ZWLT-2Y80 remains in Active status and serves the same application requirements.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the identical 10-VFDFN Exposed Pad package with 3x3mm dimensions. Pinout and mechanical specifications are identical.

Q: What is the significance of RoHS Compliance on the substitute part?

A: RoHS Compliance certification on the AS3685A-ZWLT-2Y80 indicates conformance to Restriction of Hazardous Substances regulations. This provides additional environmental and regulatory assurance for applications subject to RoHS requirements.

Q: Is the Moisture Sensitivity Level the same for both parts?

A: Yes. Both parts carry MSL 3 (168 Hours) rating, indicating identical moisture handling and storage requirements.

Q: Can I use the AS3685A-ZWLT-2Y80 in high-volume production?

A: Yes. The substitute part is in Active status with higher inventory availability (2404 Pcs), supporting high-volume production requirements and supply chain continuity.

Q: Are there any thermal or frequency performance differences?

A: No. Both parts operate at 1MHz frequency and support the identical operating temperature range of -30°C to +85°C. Thermal and frequency performance characteristics are equivalent.