TLC393IPW Equivalent & Substitute Parts

Part Overview

The TLC393IPW is a dual general-purpose comparator IC manufactured by Texas Instruments, featuring MOS open-drain output architecture in an 8-TSSOP surface mount package. This device operates across a 3V to 16V supply range and is designed for precision voltage comparison applications requiring low input offset voltage and minimal input bias current.

The TLC393IPW carries an Obsolete product status. Identifying functionally equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Key Parameters

Parameter	Value	Specification
Manufacturer	Texas Instruments	LinCMOS™ Series
Package Type	8-TSSOP	0.173" width, 4.40mm
Number of Elements	2	Dual comparator
Output Type	MOS, Open-Drain	General purpose
Supply Voltage Range	3V ~ 16V	Single supply
Input Offset Voltage (Max)	5mV @ 10V	Precision specification
Input Bias Current (Max)	5pA @ 5V	Ultra-low input current
Output Current (Typ)	20mA	Drive capability
Quiescent Current (Max)	65µA	Power consumption
CMRR (Typ)	84dB	Common-mode rejection
Propagation Delay (Max)	4.5µs	Response time
Operating Temperature	-40°C ~ 85°C	Industrial range
RoHS Status	ROHS3 Compliant	Environmental compliance
Moisture Sensitivity Level	MSL 1	Unlimited shelf life

Substitute Part Grouping Explanation

Substitution eligibility for the TLC393IPW is determined by the following critical parameters:

Core Functional Requirements:

Dual comparator architecture (2 elements)
MOS or CMOS open-drain output topology
Supply voltage range compatibility (minimum 3V ~ 16V support)
Input offset voltage specification ≤ 5mV @ 10V
Input bias current specification ≤ 5pA @ 5V
Output current capability ≥ 20mA typical
Propagation delay ≤ 4.5µs maximum
CMRR ≥ 71dB typical

Package and Mounting Compatibility:

Surface mount technology required
8-pin package configuration (TSSOP or SOIC variants acceptable)
Pin-compatible footprints within the same base product family

Compliance and Certification:

RoHS3 compliance mandatory
MSL 1 rating required
REACH unaffected status

Three substitute parts meet these criteria: TLC393IPWR (same package, active status), TLC393CDR (8-SOIC package variant, active status), and TS393IPT (cross-manufacturer alternative with enhanced specifications).

Parameter Comparison

Parameter	TLC393IPW	TLC393IPWR	TLC393CDR	TS393IPT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	STMicroelectronics
Product Status	Obsolete	Active	Active	Active
Package / Case	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-SOIC (0.154", 3.90mm)	8-TSSOP (0.173", 4.40mm)
Packaging Format	Tube	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®
Number of Elements	2	2	2	2
Output Type	MOS, Open-Drain	MOS, Open-Drain	MOS, Open-Drain	CMOS, Open-Drain
Supply Voltage Range	3V ~ 16V	3V ~ 16V	3V ~ 16V	2.7V ~ 16V, ±1.35V ~ 8V
Input Offset Voltage (Max)	5mV @ 10V	5mV @ 10V	5mV @ 10V	5mV @ 10V
Input Bias Current (Max)	5pA @ 5V	5pA @ 5V	5pA @ 5V	1pA @ 5V
Output Current (Typ)	20mA	20mA	20mA	20mA
Quiescent Current (Max)	65µA	40µA	50µA	25µA
CMRR (Typ)	84dB	84dB	84dB	71dB
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1	MSL 1	MSL 1	MSL 1

Engineering Selection Recommendations

TLC393IPWR (Primary Substitute - Same Manufacturer, Active Status)

The TLC393IPWR is the direct functional equivalent of the TLC393IPW, maintaining identical electrical specifications and the same 8-TSSOP package footprint. This part carries Active product status from Texas Instruments, ensuring long-term availability and supply chain stability. The primary difference is packaging format (Tape & Reel versus Tube), which is suitable for automated assembly environments. Quiescent current is reduced to 40µA, providing improved power efficiency. This part is recommended as the first-choice substitute for direct replacement in new production runs.

TLC393CDR (Package Variant - Active Status)

The TLC393CDR provides equivalent electrical performance within an 8-SOIC package (0.154" width, 3.90mm) rather than TSSOP. This substitute is appropriate for designs where SOIC footprint compatibility exists or where board space constraints favor the narrower package width. Operating temperature range is limited to 0°C ~ 70°C (commercial range), which may restrict use in extended industrial applications. Quiescent current is 50µA. This part is suitable for applications not requiring the full -40°C ~ 85°C industrial temperature range.

TS393IPT (Cross-Manufacturer Alternative - Active Status)

The TS393IPT from STMicroelectronics maintains the 8-TSSOP package and extends the operating temperature range to -40°C ~ 125°C. This part demonstrates superior electrical characteristics: input bias current of 1pA (versus 5pA), quiescent current of 25µA (versus 65µA), and extended supply voltage flexibility (±1.35V ~ 8V dual supply option). CMRR is specified at 71dB, which is lower than the TLC393IPW specification of 84dB. This part is suitable for applications requiring extended temperature operation or ultra-low power consumption, provided the reduced CMRR specification is acceptable for the intended application.

All three substitute parts maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status, ensuring regulatory and environmental compliance equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can TLC393IPWR be used as a direct drop-in replacement for TLC393IPW?

A: Yes. The TLC393IPWR is electrically and functionally identical to the TLC393IPW, with the same 8-TSSOP package footprint, pin configuration, and electrical specifications. The only difference is packaging format (Tape & Reel versus Tube). No circuit modifications are required.

Q: What is the key difference between TLC393CDR and TLC393IPWR?

A: The TLC393CDR uses an 8-SOIC package (0.154" width) instead of 8-TSSOP (0.173" width), and the operating temperature range is limited to 0°C ~ 70°C commercial range rather than -40°C ~ 85°C industrial range. Electrical specifications are otherwise equivalent. PCB footprint changes are required for SOIC implementation.

Q: Is TS393IPT a suitable substitute if CMRR performance is critical?

A: The TS393IPT specifies 71dB CMRR compared to 84dB for the TLC393IPW. If the application requires the higher CMRR specification, TS393IPT is not suitable. If the application can tolerate 71dB CMRR, TS393IPT offers superior quiescent current (25µA) and extended temperature range (-40°C ~ 125°C).

Q: Can I use TS393IPT in applications requiring -40°C ~ 85°C operation?

A: Yes. The TS393IPT operating range of -40°C ~ 125°C fully encompasses the -40°C ~ 85°C requirement of the TLC393IPW. This part is suitable for this temperature specification.

Q: What packaging considerations apply when selecting a substitute?

A: TLC393IPWR and TS393IPT both use 8-TSSOP packages with identical footprints and pin assignments, requiring no PCB modifications. TLC393CDR uses 8-SOIC packaging, which requires PCB footprint redesign. Verify your PCB layout supports the selected package before implementation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. TLC393IPWR, TLC393CDR, and TS393IPT are all ROHS3 compliant with MSL 1 rating and REACH unaffected status, matching the environmental and regulatory compliance of the original TLC393IPW.

Q: Which substitute offers the lowest power consumption?

A: The TS393IPT provides the lowest quiescent current at 25µA maximum, compared to 65µA for TLC393IPW, 40µA for TLC393IPWR, and 50µA for TLC393CDR. This makes TS393IPT the optimal choice for battery-powered or ultra-low-power applications.

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