TLC352CDRG4 Equivalent & Substitute Parts

Part Overview

The TLC352CDRG4 is a dual differential comparator IC manufactured by Texas Instruments in 8-SOIC surface mount packaging. This LinCMOS™ series component features CMOS, MOS, open-drain, and TTL output configurations suitable for precision voltage comparison applications. The part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production continuity.

Key Parameters

Parameter	TLC352CDRG4
Manufacturer	Texas Instruments
Type	Differential Comparator
Number of Elements	2
Output Type	CMOS, MOS, Open-Drain, TTL
Voltage Supply Range (Single/Dual)	1.4V ~ 16V / ±0.7V ~ 8V
Input Offset Voltage (Max)	5mV @ 5V
Input Bias Current (Max)	5pA @ 5V
Output Current (Typ)	20mA
Quiescent Current (Max)	400µA
Operating Temperature	0°C ~ 70°C
Package	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TLC352CDRG4 are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Package type: 8-SOIC surface mount form factor (0.154", 3.90mm width)
Number of elements: Dual comparator configuration
Output type compatibility: Open-drain output capability
Supply voltage range: Minimum overlap with 1.4V ~ 16V range
Input offset voltage: Maximum 5mV specification
Input bias current: Maximum 5pA specification
Output current capability: Minimum 20mA
Operating temperature range: Minimum 0°C ~ 70°C coverage
Compliance: ROHS3 compliant, REACH unaffected

Grouping Categories:

Group 1 - Differential Comparators (Direct Type Match): TS372CDT, TS372IDT — Maintain differential comparator topology with matching output characteristics and temperature range options.

Group 2 - General Purpose Comparators (Functional Equivalents): NCS3402DR2G, TS393CDT, TS393IDT, TS393IYDT — General purpose comparators with open-drain output and compatible supply voltage ranges, suitable for applications where differential input stage is not required.

Parameter Comparison

Parameter	TLC352CDRG4	NCS3402DR2G	TS372CDT	TS372IDT	TS393CDT	TS393IDT	TS393IYDT
Manufacturer	Texas Instruments	onsemi	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Type	Differential	General Purpose	Differential	Differential	General Purpose	General Purpose	General Purpose
Number of Elements	2	2	2	2	2	2	2
Output Type	CMOS, MOS, Open-Drain, TTL	Open-Drain	CMOS, MOS, Open-Drain, TTL	CMOS, MOS, Open-Drain, TTL	CMOS, Open-Drain	CMOS, Open-Drain	CMOS, Open-Drain
Voltage Supply Range (Single)	1.4V ~ 16V	2.5V ~ 16V	3V ~ 16V	3V ~ 16V	2.7V ~ 16V	2.7V ~ 16V	2.7V ~ 16V
Voltage Supply Range (Dual)	±0.7V ~ 8V	—	±1.5V ~ 8V	±1.5V ~ 8V	±1.35V ~ 8V	±1.35V ~ 8V	±1.35V ~ 8V
Input Offset Voltage (Max)	5mV @ 5V	3.6mV @ 15V	10mV @ 5V	10mV @ 5V	5mV @ 10V	5mV @ 10V	5mV @ 10V
Input Bias Current (Max)	5pA @ 5V	250pA @ 15V	1pA	1pA	1pA @ 5V	1pA @ 5V	1pA @ 5V
Output Current (Typ)	20mA	10mA	20mA	20mA	20mA	20mA	20mA
Quiescent Current (Max)	400µA	640nA	375µA	375µA	25µA	25µA	25µA
Operating Temperature	0°C ~ 70°C	-40°C ~ 125°C	0°C ~ 70°C	-40°C ~ 125°C	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 125°C
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Discontinued	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Differential Comparator Replacement (Preferred): TS372CDT and TS372IDT maintain the differential comparator topology of the TLC352CDRG4. TS372IDT extends the operating temperature range to -40°C ~ 125°C, providing broader environmental coverage. Both parts are active products with ROHS3 compliance and REACH unaffected status. TS372IDT is recommended for applications requiring extended temperature operation.

For General Purpose Comparator Applications: NCS3402DR2G, TS393CDT, TS393IDT, and TS393IYDT function as general purpose comparators with open-drain outputs. These parts are suitable for applications where the differential input stage of the TLC352CDRG4 is not required. TS393IYDT includes AEC-Q100 automotive qualification and extended temperature range (-40°C ~ 125°C), making it appropriate for automotive and industrial environments. TS393CDT and TS393IDT maintain standard industrial temperature ranges (0°C ~ 70°C and -40°C ~ 125°C respectively).

Supply Voltage Considerations: All substitute parts operate within the upper voltage range of the TLC352CDRG4 (up to 16V). However, minimum supply voltage requirements differ. Applications requiring operation below 2.5V should use TS372CDT or TS372IDT. NCS3402DR2G has a minimum supply voltage of 2.5V and is not suitable for ultra-low voltage applications.

Quiescent Current Profile: TS393 series parts (TS393CDT, TS393IDT, TS393IYDT) offer significantly lower quiescent current (25µA max) compared to the TLC352CDRG4 (400µA max), providing power efficiency advantages in battery-powered or low-power applications. NCS3402DR2G and TS372 series maintain higher quiescent current specifications.

Frequently Asked Questions (FAQ)

Q: Can TS393 series parts directly replace the TLC352CDRG4 in all applications? A: TS393 series parts are general purpose comparators, while the TLC352CDRG4 is a differential comparator. Direct replacement is possible only if the application does not require differential input stage functionality. Verify circuit topology and input signal requirements before substitution.

Q: What is the key difference between TS372CDT and TS372IDT? A: Both are differential comparators with identical electrical specifications. The primary difference is operating temperature range: TS372CDT operates 0°C ~ 70°C, while TS372IDT extends to -40°C ~ 125°C. TS372IDT is recommended for industrial and extended temperature applications.

Q: Why does NCS3402DR2G have lower output current (10mA) compared to the TLC352CDRG4 (20mA)? A: NCS3402DR2G is specified with 10mA typical output current, which may limit applications requiring higher output drive capability. Verify output current requirements in the application circuit before selecting this substitute.

Q: Is TS393IYDT suitable for automotive applications? A: Yes. TS393IYDT includes AEC-Q100 automotive qualification and operates across -40°C ~ 125°C, making it appropriate for automotive and harsh industrial environments. Other TS393 variants lack automotive qualification.

Q: What packaging options are available for these substitute parts? A: All substitute parts are available in 8-SOIC surface mount packaging, matching the TLC352CDRG4 form factor. Packaging variants (Tape & Reel, Cut Tape & Digi-Reel) differ by supplier but maintain identical electrical and mechanical specifications.

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 TLC352CDRG4.

Q: Which substitute part offers the best power efficiency? A: TS393 series parts (TS393CDT, TS393IDT, TS393IYDT) offer the lowest quiescent current at 25µA maximum, compared to 400µA for the TLC352CDRG4. These parts are preferred for power-sensitive applications.

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