DGD2108S8-13 Equivalent & Substitute Parts

Part Overview

The DGD2108S8-13 is a half-bridge gate driver IC manufactured by Diodes Incorporated, designed for driving IGBT and N-Channel MOSFET configurations in power management applications. This device operates with a supply voltage range of 10V to 20V and supports a maximum bootstrap voltage of 600V, making it suitable for half-bridge topologies in industrial and consumer power conversion circuits.

The DGD2108S8-13 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

DGD2108S8-13

Diodes IncorporatedIn Stock: 18004DGD2108S8-13 Datasheet

Current PartRFQ

IR2108STRPBF

Infineon TechnologiesIn Stock: 42966IR2108STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DGD2108S8-13 is determined by the following critical parameters:

• Driven Configuration: Must be Half-Bridge
• Number of Drivers: Must be 2 independent channels
• Gate Type: Must support IGBT and N-Channel MOSFET
• Voltage - Supply: Must operate within 10V ~ 20V range
• High Side Voltage - Max (Bootstrap): Must support minimum 600V
• Package / Case: Must be 8-SOIC form factor with 0.154" (3.90mm) width
• Mounting Type: Must be Surface Mount
• Operating Temperature Range: Must cover -40°C ~ 150°C (TJ)
• RoHS Compliance: Must meet ROHS3 standard

The IR2108STRPBF meets all mandatory substitution criteria and is classified as an active product with verified inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The IR2108STRPBF is a direct functional substitute for the obsolete DGD2108S8-13. Both devices meet identical core specifications for half-bridge gate driver applications, including supply voltage range, bootstrap voltage capability, package form factor, and operating temperature range.

The IR2108STRPBF offers the advantage of active product status with established supply chain availability. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production continuity.

The IR2108STRPBF exhibits lower peak output current specifications (200mA source, 350mA sink versus 290mA source, 600mA sink) and slightly extended rise/fall times (150ns/50ns versus 100ns/35ns). These differences are within acceptable tolerances for standard half-bridge gate driver applications and do not preclude functional equivalence.

The IR2108STRPBF maintains superior moisture sensitivity characteristics (MSL 2 versus MSL 3), providing enhanced reliability during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the IR2108STRPBF be used as a direct replacement for the DGD2108S8-13 in existing designs?

A: Yes. Both devices share identical half-bridge configuration, dual independent driver channels, IGBT and N-Channel MOSFET gate type support, 10V-20V supply voltage range, 600V bootstrap voltage capability, and 8-SOIC package form factor. The devices are pin-compatible and functionally equivalent for half-bridge gate driver applications.

Q: What are the differences in output current capability between these parts?

A: The DGD2108S8-13 provides 290mA source and 600mA sink peak output current. The IR2108STRPBF provides 200mA source and 350mA sink peak output current. Applications requiring the higher current specifications of the original part should evaluate circuit requirements against the substitute's capabilities.

Q: Are there differences in switching speed between these devices?

A: The DGD2108S8-13 exhibits rise/fall times of 100ns and 35ns respectively. The IR2108STRPBF exhibits rise/fall times of 150ns and 50ns respectively. These differences may affect switching transient characteristics in high-frequency applications but remain within acceptable parameters for standard half-bridge topologies.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the DGD2108S8-13 and IR2108STRPBF are ROHS3 compliant and REACH unaffected, satisfying equivalent regulatory requirements.

Q: What is the significance of the different MSL ratings?

A: The DGD2108S8-13 carries MSL 3 (168 hours), while the IR2108STRPBF carries MSL 2 (1 year). MSL 2 indicates superior moisture resistance and longer shelf life under standard storage conditions. The IR2108STRPBF provides enhanced reliability during extended storage and handling.

Q: Are the logic voltage thresholds identical between these parts?

A: No. The DGD2108S8-13 specifies VIL and VIH of 0.6V and 2.5V respectively. The IR2108STRPBF specifies VIL and VIH of 0.8V and 2.9V respectively. These differences are minor and do not affect compatibility with standard logic signal levels in typical gate driver applications.