PCA9515ATP,147 Equivalent & Substitute Parts

Part Overview

The PCA9515ATP,147 is a Buffer/ReDriver interface IC manufactured by NXP USA Inc., designed for I2C 2-channel applications with a maximum data rate of 400kHz. This component features an 8-HWSON (2x3) package and operates across a supply voltage range of 2.3V to 3.6V with a maximum supply current of 800µA. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Type	Buffer, ReDriver
Applications	I2C
Number of Channels	2
Data Rate (Max)	400kHz
Input/Output	2-Wire Bus
Voltage - Supply	2.3V ~ 3.6V
Current - Supply	800µA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the PCA9515ATP,147 is determined by the following critical parameters:

Functional Type: Buffer/ReDriver for I2C applications
Channel Configuration: 2-channel architecture
Data Rate Compatibility: 400kHz maximum operation
Bus Interface: 2-Wire Bus input and output
Supply Voltage Range: Minimum 2.3V operation required
Operating Temperature Range: -40°C to 85°C capability
Compliance: ROHS3 and REACH compliance status

Substitute parts are grouped into two categories based on these parameters:

Category 1 - NXP Direct Substitutes: PCA9515ADP,118 maintains identical electrical specifications with alternative packaging (8-TSSOP vs. 8-HWSON).

Category 2 - Analog Devices LTC4301 Series: LTC4301 variants provide I2C hotswap functionality with compatible 2-channel, 400kHz operation. These parts operate across an extended supply voltage range (2.7V ~ 5.5V) and feature higher input capacitance (10 pF vs. 6 pF) and supply current (4.5mA vs. 800µA).

Parameter Comparison

Parameter	PCA9515ATP,147	PCA9515ADP,118	LTC4301CMS8#PBF	LTC4301CMS8#TRPBF	LTC4301IMS8#PBF	LTC4301IMS8#TRPBF	LTC4301LCMS8#PBF	LTC4301LCMS8#TRPBF	LTC4301LIMS8#PBF	LTC4301LIMS8#TRPBF	PCA9515BDGKR
Manufacturer	NXP USA Inc.	NXP USA Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Texas Instruments
Type	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver	Buffer, ReDriver
Applications	I2C	I2C	I2C - Hotswap	I2C - Hotswap	I2C - Hotswap	I2C - Hotswap	I2C - Hotswap	I2C - Hotswap	I2C - Hotswap	I2C - Hotswap	I2C
Number of Channels	2	2	2	2	2	2	2	2	2	2	2
Data Rate (Max)	400kHz	400kHz	400kHz	400kHz	400kHz	400kHz	400kHz	400kHz	400kHz	400kHz	400kHz
Input/Output	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus	2-Wire Bus
Capacitance - Input	6 pF	6 pF	10 pF	10 pF	10 pF	10 pF	10 pF	10 pF	10 pF	10 pF	7 pF
Voltage - Supply	2.3V ~ 3.6V	2.3V ~ 3.6V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.3V ~ 3.6V
Current - Supply	800µA	800µA	4.5mA	4.5mA	4.5mA	4.5mA	4.5mA	4.5mA	4.5mA	4.5mA	500µA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-WFDFN Exposed Pad	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - PCA9515ADP,118: This NXP part maintains identical electrical specifications and operating parameters to the PCA9515ATP,147. The only difference is packaging format (8-TSSOP vs. 8-HWSON). This part is Active status and fully compliant with ROHS3 and REACH requirements. Selection of this substitute requires PCB layout modification to accommodate the different package footprint.

Secondary Substitutes - Analog Devices LTC4301 Series: The LTC4301 family provides functional I2C 2-channel, 400kHz redriver capability with extended supply voltage range (2.7V ~ 5.5V). These parts are Active status and ROHS3/REACH compliant. Operating temperature variants are available: standard grade (0°C ~ 70°C) and industrial grade (-40°C ~ 85°C). Supply current is significantly higher (4.5mA vs. 800µA). Input capacitance is higher (10 pF vs. 6 pF). Packaging options include Tube and Tape & Reel formats in 8-MSOP configuration.

Tertiary Substitute - PCA9515BDGKR: This Texas Instruments part offers identical I2C 2-channel, 400kHz functionality with supply voltage range matching the original (2.3V ~ 3.6V). Operating temperature range is -40°C ~ 85°C. Supply current is lower (500µA vs. 800µA) and input capacitance is 7 pF. This part is Active status with ROHS3 and REACH compliance. Package is 8-VSSOP format.

Frequently Asked Questions (FAQ)

Q: Can PCA9515ADP,118 directly replace PCA9515ATP,147 without circuit modification?

A: Electrical specifications are identical. However, the package format differs (8-TSSOP vs. 8-HWSON), requiring PCB footprint redesign. Pin assignments and functional behavior remain equivalent.

Q: What are the key differences between LTC4301 variants?

A: LTC4301 variants differ in operating temperature range and packaging format. Temperature grades include standard (0°C ~ 70°C) and industrial (-40°C ~ 85°C). Packaging options are Tube or Tape & Reel. All variants maintain identical electrical specifications for I2C redriver functionality.

Q: Is the higher supply current of LTC4301 (4.5mA vs. 800µA) a concern?

A: Supply current difference reflects different IC design architecture. Selection depends on power budget constraints of the application. Both parts meet the 400kHz I2C data rate requirement.

Q: Can LTC4301 operate at 2.3V supply voltage?

A: No. LTC4301 minimum supply voltage is 2.7V. Applications requiring 2.3V operation must use PCA9515ADP,118 or PCA9515BDGKR.

Q: What is the significance of the "Hotswap" designation in LTC4301 parts?

A: Hotswap capability indicates the part can handle I2C bus connection/disconnection events without damage. This is an additional feature not present in standard PCA9515 parts.

Q: Are all substitute parts ROHS3 and REACH compliant?

A: Yes. All listed substitute parts maintain ROHS3 Compliant and REACH Unaffected status, matching the original PCA9515ATP,147 compliance profile.

Q: Which substitute offers the lowest power consumption?

A: PCA9515BDGKR provides the lowest supply current at 500µA, compared to 800µA for the original part and 4.5mA for LTC4301 variants.

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