AH5798-YG-13 Equivalent & Substitute Parts

Part Overview

The AH5798-YG-13 is a Brushless DC (BLDC) motor driver IC manufactured by Diodes Incorporated, designed for fan motor applications. It integrates control and power stage functionality in a compact SOT-89-5 package, operating across a 1.8V to 5V supply range with On/Off interface control. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

AH5798-YG-13

Diodes IncorporatedIn Stock: 7955AH5798-YG-13 Datasheet

Current PartRFQ

AH9485-WUF-7

Diodes IncorporatedIn Stock: 1015AH9485-WUF-7 Datasheet

MFR RecommendedRFQ

AH5798-YG-13

Diodes IncorporatedIn Stock: 7955AH5798-YG-13 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH5798-YG-13 is determined by the following critical parameters:

• Motor Driver Function: Fully integrated BLDC motor driver with control and power stage
• Output Configuration: Half Bridge (2) topology
• Technology: Power MOSFET-based implementation
• Supply Voltage Range: Minimum 1.8V to 5V operation capability
• Load Voltage Range: Minimum 1.8V to 5V operation capability
• Operating Temperature: -40°C to 105°C thermal envelope
• Mounting: Surface mount technology
• Compliance: ROHS3 and REACH requirements

The AH9485-WUF-7 qualifies as a manufacturer-recommended substitute based on functional equivalence across these parameters, despite differences in interface control method and package form factor.

Parameter Comparison

Engineering Selection Recommendations

The AH9485-WUF-7 is the manufacturer-recommended substitute for the obsolete AH5798-YG-13. Both components are manufactured by Diodes Incorporated and maintain identical compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification).

The substitute part maintains functional equivalence as a fully integrated BLDC motor driver with half-bridge output configuration and Power MOSFET technology. Both operate within the -40°C to 105°C thermal range and feature unlimited moisture sensitivity rating.

Key differences exist in supply voltage range (AH9485-WUF-7 extends to 6V maximum versus 5V for the original), interface control method (PWM versus On/Off), and package form factor (TSOT-26F versus SOT-89-5). The substitute provides specified output current of 300mA.

Selection of the AH9485-WUF-7 is appropriate for applications requiring active product status and ongoing manufacturer support. Design integration requires accommodation of the different package footprint and control interface methodology.

Frequently Asked Questions (FAQ)

Q: Can the AH9485-WUF-7 directly replace the AH5798-YG-13 without PCB modification?

A: No. The AH9485-WUF-7 uses TSOT-26F package (SOT-23-6 Thin) while the original uses SOT-89-5. PCB layout and footprint redesign is required. Additionally, the control interface differs (PWM versus On/Off), necessitating circuit topology changes.

Q: What is the voltage compatibility between these parts?

A: The AH5798-YG-13 operates at 1.8V to 5V supply and load voltage. The AH9485-WUF-7 operates at 2V to 6V. The substitute supports higher voltage operation and maintains compatibility within the original part's voltage envelope.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the AH5798-YG-13 and AH9485-WUF-7 are ROHS3 compliant and REACH unaffected, meeting current environmental standards.

Q: Why is the original part classified as obsolete?

A: The AH5798-YG-13 is no longer in active production. The AH9485-WUF-7 represents the current active product line from Diodes Incorporated for BLDC motor driver applications in this category.

Q: What is the significance of the PWM interface on the substitute versus On/Off on the original?

A: The AH9485-WUF-7 uses PWM (Pulse Width Modulation) control, enabling variable speed motor control through duty cycle adjustment. The original AH5798-YG-13 uses simple On/Off control. Application requirements determine which control method is appropriate.

Q: Is the 300mA output current specification on the substitute a limiting factor?

A: The AH5798-YG-13 does not specify output current. The AH9485-WUF-7 specifies 300mA output current. Design verification is necessary to confirm this specification meets application requirements.