TLC3704IPW Equivalent & Substitute Parts

Part Overview

The TLC3704IPW is a general-purpose CMOS comparator IC manufactured by Texas Instruments, featuring four independent comparators in a 14-TSSOP surface-mount package. This device operates across a wide supply voltage range of 3V to 16V and delivers push-pull TTL-compatible outputs suitable for signal conditioning and threshold detection applications.

The TLC3704IPW carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this specific packaging variant. Equivalent and substitute parts are necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements.

Key Parameters

Parameter	Value	Unit
Number of Elements	4	-
Output Type	CMOS, Push-Pull, TTL	-
Voltage - Supply, Single/Dual (±)	3V ~ 16V	V
Voltage - Input Offset (Max)	5mV @ 10V	mV
Current - Input Bias (Max)	5pA @ 5V	pA
Current - Output (Typ)	20mA	mA
Current - Quiescent (Max)	125µA	µA
CMRR (Typ)	84dB	dB
Propagation Delay (Max)	4.5µs	µs
Operating Temperature	-40°C ~ 85°C	°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the TLC3704IPW is determined by the following critical parameters:

Primary Substitution Criteria:

Number of comparator elements: 4
Output type compatibility: CMOS, Push-Pull, TTL
Supply voltage range: Minimum 3V to 16V capability
Package type: 14-TSSOP surface-mount form factor
Input offset voltage: Maximum 5mV @ 10V
Quiescent current: Maximum 125µA
Operating temperature range: -40°C to 85°C

Substitute Categories:

Category 1: Texas Instruments LinCMOS™ Series (Direct Base Product Substitutes)

TLC3704IPWR and TLC3704CPWR are alternative packaging variants of the same base product (TLC3704) from Texas Instruments, maintaining identical electrical specifications and 14-TSSOP package geometry. These parts differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Category 2: Analog Devices Maxim Integrated Beyond-the-Rails™ Series (Package Variant Substitutes)

MAX964EEE+, MAX964ESE+, and MAX964ESE+T represent functionally equivalent four-comparator solutions with different package options (16-QSOP and 16-SOIC). These parts meet the core electrical requirements but require PCB layout adaptation due to different pin counts and package dimensions.

Category 3: STMicroelectronics Series (Extended Temperature Range Substitutes)

TS339CPT, TS339IPT, and TS3704IPT are STMicroelectronics comparators in 14-TSSOP packages with comparable electrical performance. TS3704IPT provides the closest electrical match with push-pull output configuration. TS339 variants feature open-drain output and extended temperature capability to 125°C.

Parameter Comparison

Part Number	Manufacturer	Output Type	Supply Voltage Range	Input Offset (Max)	Quiescent Current (Max)	Operating Temp	Package	Product Status
TLC3704IPW	Texas Instruments	CMOS, Push-Pull, TTL	3V ~ 16V	5mV @ 10V	125µA	-40°C ~ 85°C	14-TSSOP	Last Time Buy
TLC3704IPWR	Texas Instruments	CMOS, Push-Pull, TTL	3V ~ 16V	5mV @ 10V	125µA	-40°C ~ 85°C	14-TSSOP	Active
TLC3704CPWR	Texas Instruments	CMOS, Push-Pull, TTL	3V ~ 16V	5mV @ 10V	100µA	0°C ~ 70°C	14-TSSOP	Active
MAX964EEE+	Analog Devices Inc./Maxim Integrated	CMOS, TTL	2.7V ~ 5.5V	1.5mV @ 5V	9mA	-40°C ~ 85°C	16-QSOP	Active
MAX964ESE+	Analog Devices Inc./Maxim Integrated	CMOS, TTL	2.7V ~ 5.5V	1.5mV @ 5V	9mA	-40°C ~ 85°C	16-SOIC	Active
MAX964ESE+T	Analog Devices Inc./Maxim Integrated	CMOS, TTL	2.7V ~ 5.5V	1.5mV @ 5V	9mA	-40°C ~ 85°C	16-SOIC	Active
TS3704IPT	STMicroelectronics	CMOS, Push-Pull	2.7V ~ 16V, ±1.35V ~ 8V	5mV @ 10V	25µA	-40°C ~ 125°C	14-TSSOP	Active
TS339IPT	STMicroelectronics	CMOS, Open-Drain	2.7V ~ 16V, ±1.35V ~ 8V	5mV @ 10V	25µA	-40°C ~ 125°C	14-TSSOP	Active
TS339CPT	STMicroelectronics	CMOS, Open-Drain	2.7V ~ 16V, ±1.35V ~ 8V	5mV @ 10V	25µA	0°C ~ 70°C	14-TSSOP	Active

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Recommended for Immediate Substitution):

TLC3704IPWR is the primary recommended substitute. This part maintains identical electrical specifications to the TLC3704IPW, operates across the same supply voltage range (3V to 16V), and is packaged in the same 14-TSSOP form factor. The part is in Active product status with robust inventory availability (17,208 units). No PCB layout modifications are required. Both parts are ROHS3 compliant with MSL 1 rating.

Tier 2 - Compatible Substitutes (Packaging Variant):

TLC3704CPWR provides electrical compatibility with a reduced operating temperature range (0°C to 70°C) and slightly lower quiescent current (100µA versus 125µA). This variant is suitable for applications not requiring the extended -40°C lower temperature limit. Packaging remains 14-TSSOP with no layout changes needed.

Tier 3 - Functional Equivalents (Package Adaptation Required):

TS3704IPT from STMicroelectronics offers push-pull output configuration in 14-TSSOP packaging with extended operating temperature to 125°C and lower quiescent current (25µA). This part is suitable for designs requiring enhanced temperature performance. Electrical specifications align with TLC3704IPW requirements. PCB layout remains unchanged due to identical package geometry.

Tier 4 - Alternative Solutions (Design Consideration Required):

MAX964ESE+ and MAX964EEE+ from Analog Devices provide four-comparator functionality with superior input offset voltage (1.5mV) and faster propagation delay (7ns). However, these parts operate within a narrower supply voltage range (2.7V to 5.5V) and require different package footprints (16-SOIC or 16-QSOP). PCB redesign is necessary. These parts are suitable only for applications operating within the 2.7V to 5.5V supply range.

TS339 variants (TS339IPT, TS339CPT) feature open-drain output configuration, requiring external pull-up resistors. These parts are suitable for applications where open-drain output is advantageous for wired-OR logic or multi-supply systems.

All recommended substitutes maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can TLC3704IPWR be used as a direct drop-in replacement for TLC3704IPW?

A: Yes. TLC3704IPWR is electrically and mechanically identical to TLC3704IPW. Both parts feature four comparators, push-pull TTL output, 3V to 16V supply range, and 14-TSSOP packaging. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube). No circuit modifications are required.

Q: What is the key difference between TLC3704CPWR and TLC3704IPWR?

A: TLC3704CPWR operates across a reduced temperature range (0°C to 70°C) compared to TLC3704IPWR (-40°C to 85°C). Quiescent current is also slightly lower (100µA versus 125µA). Both parts are electrically equivalent and use identical 14-TSSOP packaging. Selection depends on application temperature requirements.

Q: Why do MAX964 parts require PCB layout changes?

A: MAX964 comparators are packaged in 16-pin configurations (16-QSOP or 16-SOIC) compared to the 14-pin 14-TSSOP package of TLC3704. The different pin count and package footprint require PCB redesign. Additionally, MAX964 operates within a narrower supply voltage range (2.7V to 5.5V), limiting applicability to lower-voltage designs.

Q: Can TS3704IPT replace TLC3704IPW in all applications?

A: TS3704IPT is functionally compatible with TLC3704IPW in the same 14-TSSOP package. Both feature push-pull output and comparable input offset voltage (5mV @ 10V). TS3704IPT offers extended operating temperature to 125°C and lower quiescent current (25µA). No PCB layout changes are required. Verify that the extended temperature capability and lower quiescent current do not affect circuit behavior in your specific application.

Q: What is the difference between TS3704IPT and TS339IPT?

A: TS3704IPT features push-pull output configuration, while TS339IPT uses open-drain output. Both are packaged in 14-TSSOP and operate across 2.7V to 16V supply range. Push-pull output (TS3704IPT) is more directly compatible with TLC3704IPW. Open-drain output (TS339IPT) requires external pull-up resistors and is suitable for wired-OR applications or multi-supply systems.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TLC3704IPWR, TLC3704CPWR, MAX964 series, and TS3704/TS339 series) are ROHS3 compliant with MSL 1 moisture sensitivity rating, ensuring compatibility with standard lead-free manufacturing processes.

Q: Which substitute offers the best performance improvement over TLC3704IPW?

A: MAX964ESE+ and MAX964EEE+ provide superior input offset voltage (1.5mV versus 5mV) and significantly faster propagation delay (7ns versus 4.5µs). However, these improvements come with a narrower supply voltage range (2.7V to 5.5V) and require package redesign. TS3704IPT offers lower quiescent current (25µA versus 125µA) and extended temperature range (-40°C to 125°C) without package changes.

Q: What inventory considerations should guide part selection?

A: TLC3704IPWR has the highest inventory availability (17,208 units), making it the most readily available substitute. MAX964ESE+ offers substantial inventory (57,030 units). TS3704IPT and TS339IPT provide good availability (9,682 and 19,094 units respectively). For long-term production, TLC3704IPWR is recommended due to superior stock levels and Active product status.

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