IXMS150PSI Equivalent & Substitute Parts

Part Overview

The IXMS150PSI is a half-bridge regulator controller IC manufactured by IXYS, designed for positive output step-up/step-down DC-DC conversion applications. This device integrates control and driver functionality in a 24-DIP package with a 12V supply voltage and switching frequency range of 10kHz to 400kHz. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

IXMS150PSI

IXYSIn Stock: 2540IXMS150PSI Datasheet

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L6227N

STMicroelectronicsIn Stock: 1944L6227N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXMS150PSI is based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

• Half-bridge topology with transistor driver output configuration
• 24-pin DIP package form factor (0.300", 7.62mm pitch)
• Through-hole mounting compatibility
• Supply voltage range encompassing 12V operation
• Switching frequency capability within or overlapping the 10kHz to 400kHz range
• Positive output configuration for step-up/step-down regulation

Secondary Compatibility Factors:

• Operating temperature range compatibility
• Control feature availability (dead time control, enable, frequency control)
• Regulatory compliance (REACH status)

The L6227N from STMicroelectronics meets the core substitution criteria through its half-bridge driver architecture, 24-pin PowerDIP package, and supply voltage range of 8V to 52V, which encompasses the 12V requirement of the IXMS150PSI.

Parameter Comparison

Engineering Selection Recommendations

Both the IXMS150PSI and L6227N are classified as obsolete products. Selection between these devices should be based on the following engineering considerations:

IXMS150PSI Retention:

• Retain in designs where existing inventory is available and product status does not impact system lifecycle requirements
• Suitable for legacy system maintenance and repair applications

L6227N as Substitute:

• Provides equivalent half-bridge driver functionality with extended supply voltage range (8V to 52V versus fixed 12V)
• Offers wider operating temperature range (-25°C to 125°C junction temperature versus -40°C to 85°C ambient)
• Maintains through-hole 24-pin DIP package compatibility for direct PCB layout substitution
• Both devices carry REACH Unaffected compliance status

For new designs, evaluation of current-generation half-bridge controller and driver solutions is recommended to ensure long-term product availability and support.

Frequently Asked Questions (FAQ)

Q: Can the L6227N directly replace the IXMS150PSI in existing PCB layouts?

A: Yes. Both devices use 24-pin DIP packages with 0.300" (7.62mm) pitch and through-hole mounting. PCB footprints are mechanically compatible. Functional verification of control signal timing and output drive characteristics is required during integration.

Q: What are the key differences between these two devices?

A: The L6227N provides a wider supply voltage range (8V to 52V) compared to the IXMS150PSI's fixed 12V specification, and operates across a broader temperature range. The L6227N integrates both control and power stage functionality, whereas the IXMS150PSI functions as a controller with transistor driver output.

Q: Are both devices still in production?

A: No. Both the IXMS150PSI and L6227N are classified as obsolete. Inventory availability is limited. For new designs, current-generation alternatives should be evaluated.

Q: What supply voltage should be used when substituting L6227N for IXMS150PSI?

A: The IXMS150PSI operates at 12V supply. The L6227N accepts 8V to 52V, so 12V operation is within specification. Verify that the application's power supply can deliver the required current for the L6227N's integrated power stage.

Q: Are there compliance or regulatory differences between these parts?

A: Both devices carry REACH Unaffected status. No regulatory compliance differences exist between the two parts for standard applications.