TPL9201N Equivalent & Substitute Parts

Part Overview

The TPL9201N is a Power Management Integrated Circuit (PMIC) functioning as a power switch/driver with 1:8 N-Channel configuration, rated for 150mA output current. Manufactured by Texas Instruments in a 20-PDIP through-hole package, this component is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for system redesign, legacy product support, and procurement continuity.

Substiute Parts

TPL9201N

Texas InstrumentsIn Stock: 930TPL9201N Datasheet

Current PartRFQ

TPL9201PWPR

Texas InstrumentsIn Stock: 3672TPL9201PWPR Datasheet

MFR RecommendedRFQ

MIC59P60YN

Microchip TechnologyIn Stock: 1377MIC59P60YN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPL9201N are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Number of Outputs: 8
• Ratio - Input:Output: 1:8
• Output Configuration: Low Side
• Interface: Serial
• Fault Protection: Current Limiting (Fixed), Over Temperature
• RoHS Status: ROHS3 Compliant

Secondary Considerations:

• Output Type (N-Channel preferred for direct replacement)
• Voltage - Load range compatibility
• Voltage - Supply range compatibility
• Current - Output rating (minimum 150mA)
• Operating Temperature range
• Package compatibility (through-hole or surface mount)

The TPL9201PWPR represents a direct functional equivalent from the same manufacturer (Texas Instruments) with identical electrical specifications but in a surface-mount package format. The MIC59P60YN from Microchip Technology provides functional substitution with compatible 1:8 output configuration and low-side switching, though with different output type (Bipolar vs. N-Channel) and higher current rating (500mA).

Parameter Comparison

Engineering Selection Recommendations

TPL9201PWPR (Texas Instruments): This part is the preferred substitute for direct replacement in new designs or legacy system updates. It maintains identical electrical specifications and operating parameters as the TPL9201N, with ROHS3 compliance and Last Time Buy status providing extended procurement availability. The primary design consideration is the transition from through-hole (20-DIP) to surface-mount (20-PowerTSSOP) packaging, which requires PCB layout modification. This substitution is recommended when board redesign is feasible.

MIC59P60YN (Microchip Technology): This part provides functional substitution with compatible 1:8 output configuration and low-side switching topology. It maintains through-hole 20-DIP packaging, eliminating PCB redesign requirements. However, the following differences require engineering evaluation: output type is Bipolar rather than N-Channel, maximum output current is 500mA (higher than the 150mA requirement), operating temperature range is -40°C ~ 85°C (narrower than the original -40°C ~ 125°C), and load voltage range is 5V ~ 12V (narrower than 7V ~ 18V). The MIC59P60YN is Active status, ensuring long-term availability. This substitution is recommended for through-hole-only designs where the specified parameter differences are acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can TPL9201PWPR be used as a direct pin-for-pin replacement for TPL9201N?

A: TPL9201PWPR is electrically equivalent but not pin-compatible due to different package formats. TPL9201N uses 20-DIP through-hole packaging while TPL9201PWPR uses 20-PowerTSSOP surface-mount packaging. PCB redesign is required for substitution.

Q: What are the key differences between TPL9201N and MIC59P60YN?

A: Both parts share 1:8 output configuration and low-side switching. Key differences include: output type (N-Channel vs. Bipolar), maximum output current (150mA vs. 500mA), operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C), and load voltage range (7V ~ 18V vs. 5V ~ 12V). Both maintain through-hole 20-DIP packaging and ROHS3 compliance.

Q: Why is TPL9201N classified as obsolete?

A: TPL9201N is listed as obsolete by Texas Instruments. TPL9201PWPR is designated Last Time Buy, indicating limited future availability. For new designs, MIC59P60YN (Active status) provides long-term supply assurance.

Q: Can MIC59P60YN handle the same load voltage range as TPL9201N?

A: No. TPL9201N supports 7V ~ 18V load voltage, while MIC59P60YN supports 5V ~ 12V. Applications requiring load voltages above 12V cannot use MIC59P60YN as a substitute.

Q: What is the impact of the higher current rating in MIC59P60YN?

A: MIC59P60YN is rated for 500mA maximum output current compared to TPL9201N's 150mA. This higher rating does not prevent substitution in applications requiring 150mA or less; however, thermal management and PCB layout considerations may differ due to the Bipolar output type.

Q: Are all three parts ROHS3 compliant?

A: Yes. TPL9201N, TPL9201PWPR, and MIC59P60YN are all ROHS3 compliant, meeting environmental and regulatory requirements for equivalent substitution.