PCA9515DP,118 Equivalent & Substitute Parts

Part Overview

The PCA9515DP,118 is a 2-channel I2C buffer and redriver IC manufactured by NXP USA Inc., designed for signal conditioning and bus extension in I2C applications. This part operates at 400kHz maximum data rate with a supply voltage range of 3V to 3.6V and is packaged in an 8-TSSOP surface mount configuration. The PCA9515DP,118 is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	PCA9515DP,118
Manufacturer	NXP USA Inc.
Category	Interface
Type	Buffer, ReDriver
Applications	I2C
Number of Channels	2
Data Rate (Max)	400kHz
Input/Output	2-Wire Bus
Voltage - Supply	3V ~ 3.6V
Current - Supply	2.3mA
Capacitance - Input	6 pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PCA9515DP,118 is determined by the following critical parameters: I2C application compatibility, 2-channel or single-channel configuration, 400kHz data rate support, 2-wire bus input/output, surface mount packaging, and operating temperature range. Substitute parts are grouped into two categories:

Category 1: Direct NXP Equivalents (Active Status) Parts that maintain identical electrical specifications and channel count while offering improved supply voltage flexibility and reduced current consumption. These include PCA9515ADP,118 (active status, lower supply voltage floor of 2.3V, reduced current to 800µA).

Category 2: Alternative Manufacturer Solutions (Active Status) Parts from Analog Devices Inc. and other manufacturers that provide 2-channel I2C redriver functionality with 400kHz data rate support. These alternatives may feature extended supply voltage ranges (2.7V ~ 5.5V), different package types (8-DFN), and hotswap capability. Single-channel alternatives such as PI6ULS5V9515AUEX from Diodes Incorporated are listed for reference but represent functional reduction and are not direct substitutes.

Substitution logic is based strictly on: matching channel count (2-channel primary), maintaining 400kHz data rate, supporting 2-wire I2C bus architecture, surface mount compatibility, and compliance certifications (ROHS3, REACH Unaffected).

Parameter Comparison

Part Number	Manufacturer	Channels	Data Rate (Max)	Voltage - Supply	Current - Supply	Capacitance - Input	Operating Temperature	Package	Product Status
PCA9515DP,118	NXP USA Inc.	2	400kHz	3V ~ 3.6V	2.3mA	6 pF	-40°C ~ 85°C	8-TSSOP	Obsolete
PCA9515ADP,118	NXP USA Inc.	2	400kHz	2.3V ~ 3.6V	800µA	6 pF	-40°C ~ 85°C	8-TSSOP	Active
PCA9515BDGKR	Texas Instruments	2	400kHz	2.3V ~ 3.6V	500µA	7 pF	-40°C ~ 85°C	8-VSSOP	Active
LTC4301CDD#TRPBF	Analog Devices Inc.	2	400kHz	2.7V ~ 5.5V	4.5mA	10 pF	0°C ~ 70°C	8-DFN (3x3)	Active
LTC4301IDD#TRPBF	Analog Devices Inc.	2	400kHz	2.7V ~ 5.5V	4.5mA	10 pF	-40°C ~ 85°C	8-DFN (3x3)	Active
LTC4301LIDD#TRPBF	Analog Devices Inc.	2	400kHz	2.7V ~ 5.5V	4.5mA	10 pF	-40°C ~ 85°C	8-DFN (3x3)	Active
PI6ULS5V9515AUEX	Diodes Incorporated	1	400kHz	2.3V ~ 3.6V	1.7mA	6 pF	Not Specified	8-MSOP	Active

Engineering Selection Recommendations

Primary Recommendation: PCA9515ADP,118 This NXP part is the direct active-status equivalent of the obsolete PCA9515DP,118. It maintains identical channel count (2), data rate (400kHz), input capacitance (6 pF), operating temperature range (-40°C ~ 85°C), and package type (8-TSSOP). The PCA9515ADP,118 offers improved supply voltage flexibility (2.3V floor versus 3V) and significantly reduced current consumption (800µA versus 2.3mA). Both parts are ROHS3 compliant and REACH unaffected. This part is recommended for direct replacement in existing designs.

Secondary Recommendation: PCA9515BDGKR This Texas Instruments part provides 2-channel I2C redriver functionality with 400kHz data rate and maintains the same operating temperature range (-40°C ~ 85°C). It features lower current consumption (500µA) and extended supply voltage range (2.3V ~ 3.6V). The package is 8-VSSOP rather than 8-TSSOP, requiring PCB layout verification. ROHS3 compliant and REACH unaffected.

Alternative for Extended Supply Voltage: LTC4301IDD#TRPBF For applications requiring extended supply voltage range (2.7V ~ 5.5V) and full industrial temperature range (-40°C ~ 85°C), the Analog Devices LTC4301IDD#TRPBF provides 2-channel I2C redriver functionality at 400kHz. This part includes hotswap capability and is packaged in 8-DFN (3x3). Higher current consumption (4.5mA) and input capacitance (10 pF) must be evaluated against system requirements. ROHS3 compliant and REACH unaffected.

Not Recommended: PI6ULS5V9515AUEX This Diodes Incorporated part is a single-channel redriver, representing functional reduction from the 2-channel requirement of the original PCA9515DP,118. It is listed for reference only and does not constitute a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can PCA9515ADP,118 be used as a direct replacement for PCA9515DP,118? A: Yes. Both parts are NXP products with identical channel count (2), data rate (400kHz), input capacitance (6 pF), operating temperature range (-40°C ~ 85°C), and 8-TSSOP packaging. The PCA9515ADP,118 is active status and offers improved electrical characteristics (lower supply voltage floor, reduced current consumption).

Q: What is the primary difference between PCA9515BDGKR and PCA9515ADP,118? A: The PCA9515BDGKR is manufactured by Texas Instruments and uses 8-VSSOP packaging instead of 8-TSSOP. Both maintain 2-channel, 400kHz I2C redriver functionality. The PCA9515BDGKR features lower current consumption (500µA versus 800µA) and slightly higher input capacitance (7 pF versus 6 pF). PCB layout changes are required due to package difference.

Q: Why are LTC4301 parts listed as alternatives if they have higher current consumption? A: LTC4301 parts provide extended supply voltage range (2.7V ~ 5.5V) and hotswap capability, making them suitable for applications with different power supply architectures. Higher current consumption (4.5mA) must be evaluated against system power budgets. These are alternatives for specific application requirements, not direct replacements.

Q: Can a single-channel part like PI6ULS5V9515AUEX substitute for the 2-channel PCA9515DP,118? A: No. The PI6ULS5V9515AUEX is a single-channel redriver and does not provide the 2-channel functionality required by the original PCA9515DP,118 specification. It is not a functional substitute.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the original PCA9515DP,118.

Q: What packaging considerations apply when switching from PCA9515ADP,118 to PCA9515BDGKR? A: The PCA9515ADP,118 uses 8-TSSOP packaging while PCA9515BDGKR uses 8-VSSOP packaging. Both are 8-pin surface mount packages with 0.118" width and 3.00mm body width, but pin layouts and thermal characteristics may differ. PCB footprint verification is required before implementation.

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