TPS3823-25DBVT Equivalent & Substitute Parts

Part Overview

The TPS3823-25DBVT is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and supervisory functions in embedded systems. This device monitors a 2.25V voltage threshold and provides active-low reset output with push-pull, totem-pole configuration. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or long-term support requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPS3823-25DBVT
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.25V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	120ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the TPS3823-25DBVT is determined by the following critical parameters:

Single-channel voltage monitoring capability
2.25V voltage threshold setting
Push-pull, totem-pole output configuration
Active-low reset logic
Surface-mount packaging in SC-74A / SOT-753 form factor
Operating temperature range of -40°C to 85°C
ROHS3 compliance and REACH unaffected status

Two substitute parts meet these core electrical and mechanical requirements: the TPS3823-25DBVR (parametric equivalent from Texas Instruments) and the APX823-23W5G-7 (manufacturer-recommended alternative from Diodes Incorporated). Both devices provide identical functional performance within the specified parameter set, though packaging format and reset timeout specifications differ.

Parameter Comparison

Parameter	TPS3823-25DBVT	TPS3823-25DBVR	APX823-23W5G-7
Manufacturer	Texas Instruments	Texas Instruments	Diodes Incorporated
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset
Number of Voltages Monitored	1	1	1
Voltage - Threshold	2.25V	2.25V	2.25V
Output Configuration	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
Reset Logic	Active Low	Active Low	Active Low
Reset Timeout	120ms Minimum	120ms Minimum	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Last Time Buy	Active	Active
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)

Engineering Selection Recommendations

The TPS3823-25DBVR is the primary substitute for the TPS3823-25DBVT. Both parts are manufactured by Texas Instruments, share identical electrical specifications including the 120ms minimum reset timeout, and maintain the same MSL rating of 1 (Unlimited). The TPS3823-25DBVR is currently in Active product status, ensuring long-term availability and supply chain stability. The only difference is packaging format: the TPS3823-25DBVR is supplied in Cut Tape and Digi-Reel format rather than standard Tape & Reel.

The APX823-23W5G-7 from Diodes Incorporated is a manufacturer-recommended alternative that meets all core electrical and mechanical requirements. This part maintains identical voltage threshold, output configuration, and operating temperature specifications. However, the APX823-23W5G-7 specifies a 140ms minimum reset timeout compared to the 120ms of the primary part, and carries an MSL rating of 3 (168 Hours) versus MSL 1. These differences must be evaluated against specific application requirements before selection.

Frequently Asked Questions (FAQ)

Q: Can the TPS3823-25DBVR directly replace the TPS3823-25DBVT in production?

A: Yes. Both parts are electrically identical with matching voltage thresholds, output configurations, reset logic, and operating temperature ranges. The primary difference is packaging format. Verify that your assembly process accommodates Cut Tape and Digi-Reel packaging if transitioning from standard Tape & Reel.

Q: What is the significance of the different reset timeout values between TPS3823-25DBVR and APX823-23W5G-7?

A: The TPS3823-25DBVR specifies 120ms minimum reset timeout, while the APX823-23W5G-7 specifies 140ms minimum. This difference affects the duration of the reset pulse. Confirm that your system design accommodates the longer timeout if selecting the Diodes part.

Q: Does the MSL rating difference between TPS3823-25DBVR (MSL 1) and APX823-23W5G-7 (MSL 3) affect component selection?

A: MSL rating determines moisture sensitivity and storage requirements. MSL 1 (Unlimited) allows indefinite storage without baking, while MSL 3 (168 Hours) requires baking after 168 hours of exposure to ambient humidity. Select based on your supply chain and storage capabilities.

Q: Are all three parts ROHS3 compliant and REACH unaffected?

A: Yes. All three parts—TPS3823-25DBVT, TPS3823-25DBVR, and APX823-23W5G-7—are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the TPS3823-25DBVT marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this specific part number. The TPS3823-25DBVR (Active status) is the recommended transition path for continued supply.

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