IW3620-00 LED Driver IC: Equivalent & Substitute Parts

Part Overview

The IW3620-00 is an AC DC offline switcher LED driver IC manufactured by Renesas Electronics Corporation, designed for LED lighting applications. This single-output flyback topology device delivers 870mA output current at 21V to 24V output voltage, operating across -40°C to 85°C. The device is RoHS compliant and currently in active production status. Substitute parts are identified to address inventory availability, extended operating temperature ranges, or alternative topology requirements while maintaining functional compatibility within specified electrical parameters.

Substiute Parts

IW3620-00

Renesas Electronics CorporationIn Stock: 23243IW3620-00 Datasheet

Current PartRFQ

AL9910-5SP-13

Diodes IncorporatedIn Stock: 11701AL9910-5SP-13 Datasheet

MFR RecommendedRFQ

HV9925SG-G

Microchip TechnologyIn Stock: 2036HV9925SG-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IW3620-00 are qualified based on the following criteria:

Electrical Compatibility Parameters:

• AC DC offline switcher topology classification
• Single output configuration
• Surface mount 8-SOIC package compatibility
• Operating temperature range overlap or extension
• RoHS and REACH compliance status
• Dimming capability (PWM or Analog)

Substitution Logic: The IW3620-00 operates with a maximum supply voltage of 16V and delivers 870mA at 21V-24V output. Substitute parts must support AC DC offline switching for LED lighting applications. While output voltage and current specifications may differ between candidates, substitutes are selected based on topology class, package form factor, and compliance certifications. Parts with extended supply voltage ranges (15V-500V) and alternative topologies (Buck, Boost) are included as they accommodate broader application requirements while maintaining the 8-SOIC package standard and surface mount configuration.

Parameter Comparison

Engineering Selection Recommendations

AL9910-5SP-13 (Diodes Incorporated): This substitute offers extended operating temperature range (-40°C to 105°C) and higher supply voltage tolerance (15V-500V). The Buck/Boost topology provides flexibility for diverse LED lighting configurations. ROHS3 compliance and MSL 1 rating indicate superior moisture resistance compared to the main part. Suitable for applications requiring extended thermal operating range or variable supply voltage conditions.

HV9925SG-G (Microchip Technology): This substitute maintains the same operating temperature range as the main part (-40°C to 85°C) and features internal switching capability. The Step-Down (Buck) topology with PWM dimming supports standard LED lighting applications. ROHS3 compliance and MSL 1 rating provide enhanced reliability. Note that the 50mA output current specification is significantly lower than the main part's 870mA rating, limiting applicability to lower-power LED driver scenarios.

Both substitutes are active products with current manufacturing status and full RoHS compliance certification, ensuring long-term availability and regulatory compliance for production designs.

Frequently Asked Questions (FAQ)

Q: Can AL9910-5SP-13 directly replace IW3620-00 in existing designs? A: AL9910-5SP-13 shares the 8-SOIC package form factor and AC DC offline switcher classification. However, the Buck/Boost topology differs from the main part's Flyback topology. Circuit design modifications may be required to accommodate the alternative topology and dimming control method (Analog/PWM vs. unspecified). Verify output voltage and current specifications against application requirements before substitution.

Q: What is the significance of the MSL rating difference? A: The main part (IW3620-00) carries MSL 3 (168 hours), while both substitutes carry MSL 1 (Unlimited). MSL 1 indicates superior moisture resistance and longer shelf life without baking requirements. For high-volume production or extended storage periods, the substitutes offer logistical advantages.

Q: Is HV9925SG-G suitable for high-current LED applications? A: No. HV9925SG-G specifies 50mA maximum output current, compared to IW3620-00's 870mA. This substitute is appropriate only for low-power LED driver applications. For applications requiring 870mA output current, HV9925SG-G is not functionally equivalent.

Q: Do all three parts require identical PCB layouts? A: No. While all three parts use the 8-SOIC package, the exposed pad variants (AL9910-5SP-13 and HV9925SG-G) require thermal pad connection to ground plane for optimal performance. The main part (IW3620-00) standard 8-SOIC package does not include an exposed pad. PCB layout modifications are necessary when substituting.

Q: Are there supply voltage compatibility concerns? A: Yes. The main part specifies maximum supply voltage of 16V, while AL9910-5SP-13 tolerates up to 500V and HV9925SG-G up to 400V. Ensure your power supply design operates within the specified range for each selected part. Higher voltage tolerance does not permit operation above the main part's 16V specification in equivalent applications.

Q: What compliance certifications apply to all three parts? A: All three parts are RoHS compliant and carry active product status. AL9910-5SP-13 and HV9925SG-G additionally carry ROHS3 and REACH Unaffected certifications, providing enhanced regulatory coverage for international markets.