LM5101ASD Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5101ASD is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in half-bridge configurations. This device operates with a supply voltage range of 9V to 14V and delivers peak output currents of 3A for both source and sink operations. The LM5101ASD is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for design continuity and long-term component sourcing.

Key Parameters

Parameter	Value
Driven Configuration	Half-Bridge
Number of Drivers	2
Gate Type	N-Channel MOSFET
Voltage - Supply	9V ~ 14V
Current - Peak Output (Source, Sink)	3A, 3A
Input Type	Non-Inverting
High Side Voltage - Max (Bootstrap)	118 V
Rise / Fall Time (Typ)	430ns, 260ns
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	10-WDFN Exposed Pad
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LM5101ASD is determined by the following critical parameters:

Half-bridge driven configuration with independent dual channels
N-channel MOSFET gate drive capability
Non-inverting input logic
Peak output current capability of 3A minimum (source and sink)
Bootstrap voltage support of 114V minimum
Surface mount 10-pin WDFN package compatibility
ROHS3 compliance and EAR99 export classification

Substitute parts must maintain compatibility across these core electrical and mechanical specifications. Variations in supply voltage range, logic thresholds, rise/fall times, and operating temperature limits are permissible provided the substitute meets or exceeds the minimum performance requirements of the LM5101ASD.

Parameter Comparison

Parameter	LM5101ASD	LM5101ASD/NOPB	UCC27201ADPRR	ISL2111ARTZ	ISL2111ARTZ-T
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Renesas Electronics	Renesas Electronics
Driven Configuration	Half-Bridge	Half-Bridge	Half-Bridge	Half-Bridge	Half-Bridge
Number of Drivers	2	2	2	2	2
Gate Type	N-Channel MOSFET	N-Channel MOSFET	N-Channel MOSFET	N-Channel MOSFET	N-Channel MOSFET
Voltage - Supply	9V ~ 14V	9V ~ 14V	8V ~ 17V	8V ~ 14V	8V ~ 14V
Logic Voltage - VIL, VIH	2.3V, -	2.3V, -	0.8V, 2.5V	1.4V, 2.2V	1.4V, 2.2V
Current - Peak Output (Source, Sink)	3A, 3A	3A, 3A	3A, 3A	3A, 4A	3A, 4A
Input Type	Non-Inverting	Non-Inverting	Non-Inverting	Non-Inverting	Non-Inverting
High Side Voltage - Max (Bootstrap)	118 V	118 V	120 V	114 V	114 V
Rise / Fall Time (Typ)	430ns, 260ns	430ns, 260ns	8ns, 7ns	9ns, 7.5ns	9ns, 7.5ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 140°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	10-WDFN Exposed Pad	10-WDFN Exposed Pad	10-WDFN Exposed Pad	10-WDFN Exposed Pad	10-WDFN Exposed Pad
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Last Time Buy	Active	Active	Active	Active

Engineering Selection Recommendations

LM5101ASD/NOPB is the direct equivalent part from Texas Instruments with identical electrical specifications and active product status. This part is recommended as the primary replacement for the LM5101ASD and offers the highest compatibility with existing designs.

UCC27201ADPRR provides enhanced performance characteristics including faster rise and fall times (8ns/7ns versus 430ns/260ns), extended supply voltage range (8V to 17V), and higher operating temperature capability (-40°C to 140°C). This part is suitable for applications requiring improved switching speed and thermal margin, with active product status and ROHS3 compliance.

ISL2111ARTZ and ISL2111ARTZ-T are Renesas Electronics alternatives offering comparable performance with slightly faster switching times (9ns/7.5ns) and enhanced sink current capability (4A sink versus 3A). Both variants maintain ROHS3 compliance and active product status. ISL2111ARTZ is supplied in Tray packaging, while ISL2111ARTZ-T is supplied in Tape & Reel format. These parts are functionally compatible with the LM5101ASD within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can LM5101ASD/NOPB be used as a direct replacement for LM5101ASD?

A: Yes. LM5101ASD/NOPB is the direct equivalent with identical electrical and mechanical specifications. The primary difference is product status: LM5101ASD is Last Time Buy while LM5101ASD/NOPB is Active. Both parts are functionally interchangeable.

Q: What are the key differences between Texas Instruments and Renesas alternatives?

A: UCC27201ADPRR offers faster switching times and wider supply voltage range. ISL2111ARTZ and ISL2111ARTZ-T provide comparable switching performance with enhanced sink current capability. All three alternatives maintain the required half-bridge configuration, dual independent channels, and non-inverting input logic.

Q: Are there packaging considerations when selecting a substitute?

A: All substitute parts use the 10-WDFN Exposed Pad package, ensuring mechanical compatibility. Packaging format differs: LM5101ASD/NOPB is available in Cut Tape and Digi-Reel, UCC27201ADPRR packaging is not specified, ISL2111ARTZ is supplied in Tray, and ISL2111ARTZ-T is supplied in Tape & Reel. Verify packaging availability for your procurement requirements.

Q: Do all substitute parts meet compliance requirements?

A: Yes. All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes, matching the compliance profile of the LM5101ASD.

Q: What is the impact of faster rise/fall times in UCC27201ADPRR and Renesas alternatives?

A: Faster switching times reduce gate drive delay and improve overall system switching performance. This is beneficial for high-frequency applications but does not affect functional compatibility with the LM5101ASD in standard half-bridge gate drive circuits.

Q: Can ISL2111ARTZ variants be used interchangeably?

A: ISL2111ARTZ and ISL2111ARTZ-T are electrically identical. The difference is packaging format: Tray versus Tape & Reel. Selection depends on your assembly process and procurement workflow.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message