BU7252SFVM-TR Equivalent & Substitute Parts

Part Overview

The BU7252SFVM-TR is a general-purpose dual comparator IC manufactured by Rohm Semiconductor in 8-MSOP surface mount packaging. This active product features push-pull output configuration with supply voltage range of 1.8V to 5.5V (single supply) or ±0.9V to ±2.75V (dual supply). The device is designed for general-purpose comparison applications requiring low input offset voltage and moderate propagation delay. Equivalent and substitute parts are identified when alternative manufacturers offer comparable functional and electrical characteristics within the same package class and operating parameters.

Substiute Parts

BU7252SFVM-TR

Rohm SemiconductorIn Stock: 762BU7252SFVM-TR Datasheet

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MAX9022AUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 916MAX9022AUA+ Datasheet

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MAX9022AUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 958MAX9022AUA+T Datasheet

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MAX9032AUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2477MAX9032AUA+ Datasheet

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MAX9032AUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 10140MAX9032AUA+T Datasheet

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TC75W56FU,LF

Toshiba Semiconductor and StorageIn Stock: 3878TC75W56FU,LF Datasheet

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TC75W57FU,LF

Toshiba Semiconductor and StorageIn Stock: 24822TC75W57FU,LF Datasheet

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TSX3702IQ2T

STMicroelectronicsIn Stock: 2187TSX3702IQ2T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BU7252SFVM-TR are qualified based on the following criteria:

Functional Equivalence: Dual general-purpose comparator with push-pull output configuration.

Electrical Compatibility: Supply voltage range overlap, input offset voltage within acceptable tolerance for general-purpose applications, and propagation delay suitable for non-critical timing applications.

Package Compatibility: Surface mount 8-pin packages (8-MSOP, 8-TSSOP, 8-uMAX/uSOP, or 8-DFN) with compatible pinout and thermal characteristics.

Compliance & Status: Active product status with ROHS3 compliance and MSL rating of 1 (Unlimited).

Key Substitution Parameters:

• Number of Elements: 2
• Output Type: Push-Pull
• Supply Voltage Range: Minimum 1.8V single supply or ±0.9V dual supply
• Operating Temperature: -40°C minimum
• Package Class: 8-pin surface mount
• RoHS3 Compliance: Required

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and MSL rating of 1 (Unlimited), meeting the same regulatory and environmental standards as the BU7252SFVM-TR.

MAX9032AUA+T provides the closest electrical match with push-pull, rail-to-rail output, lower input offset voltage (1mV), faster propagation delay (228ns), and extended operating temperature range (-40°C to 125°C). Package dimensions differ slightly (0.118" vs 0.110" width) but remain within 8-MSOP class compatibility.

TC75W56FU,LF and TC75W57FU,LF offer extended supply voltage range (1.8V to 7V) and compatible package dimensions (0.110" width). TC75W57FU,LF provides significantly faster propagation delay (140ns) but exhibits higher quiescent current (400µA). TC75W56FU,LF maintains lower quiescent current (40µA) with moderate propagation delay (680ns).

TSX3702IQ2T features the widest supply voltage range (2.7V to 16V) and lowest quiescent current (8µA) but uses 8-DFN package format requiring PCB layout adjustment. Input offset voltage (5mV) and CMRR/PSRR specifications remain suitable for general-purpose applications.

MAX9022AUA+T offers CMOS rail-to-rail TTL output with superior input offset voltage (1mV) and lowest quiescent current (5µA) but exhibits significantly slower propagation delay (8µs), limiting use in timing-critical applications.

Frequently Asked Questions (FAQ)

Q: Can MAX9022AUA+T replace BU7252SFVM-TR in all applications?

A: MAX9022AUA+T is electrically compatible for supply voltage and general-purpose comparison functions. However, its propagation delay of 8µs is substantially slower than the BU7252SFVM-TR (550ns). Applications requiring faster response times must use MAX9032AUA+T, TC75W57FU,LF, or TSX3702IQ2T instead.

Q: What is the difference between TC75W56FU,LF and TC75W57FU,LF?

A: Both devices share identical electrical specifications except for propagation delay and quiescent current. TC75W57FU,LF provides 140ns propagation delay with 400µA quiescent current, while TC75W56FU,LF offers 680ns propagation delay with 40µA quiescent current. Selection depends on timing requirements and power consumption constraints.

Q: Are package dimensions interchangeable between all substitutes?

A: Most substitutes use 8-MSOP or 8-TSSOP packages with compatible pinouts. TSX3702IQ2T uses 8-DFN (2x2) package, requiring PCB layout modification. Verify pinout compatibility and thermal pad requirements before substitution.

Q: Which substitute offers the best low-power performance?

A: MAX9022AUA+T provides the lowest quiescent current at 5µA, followed by TSX3702IQ2T at 8µA. Both are suitable for battery-powered or low-power applications where quiescent current is a primary design constraint.

Q: Do all substitutes support the full -40°C to 105°C operating temperature range?

A: No. TC75W56FU,LF and TC75W57FU,LF operate only to 85°C maximum. MAX9032AUA+T, MAX9022AUA+T, and TSX3702IQ2T extend to 125°C. Verify application temperature requirements before selection.

Q: What is the significance of input offset voltage differences?

A: Input offset voltage determines comparison accuracy at low signal levels. BU7252SFVM-TR specifies 11mV maximum, while MAX9032AUA+T and MAX9022AUA+T specify 1mV. Lower offset voltage improves precision in precision measurement applications but is not critical for general-purpose switching applications.