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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Diodes Incorporated PT7M6832VD3TA3EX

Name: PT7M6832VD3TA3EX
Brand: Diodes Incorporated
SKU: PT7M6832VD3TA3EX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PT7M6832VD3TA3EX

Manufacturer:: Diodes Incorporated

Category:: Supervisors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PT7M6832VD3TA3EX.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT23-3

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Product details

Overview

PT7M6832VD3TA3EX from Pericom Semiconductor is an ultra-low-voltage supervisor IC with factory-set 1.575V reset threshold, 210ms timeout period, push-pull active-low RESET output, and operation down to 0.9V V_CC. It monitors +1.2V to +1.8V supply rails in microprocessor systems, delivers ±1.5% threshold accuracy, consumes only 7.5μA typical supply current, and is housed in a lead-free SOT23-3L package for portable power-sensitive applications.

For engineers reviewing the PT7M6832VD3TA3EX datasheet, PT7M6832VD3TA3EX pinout, PT7M6832VD3TA3EX application, or PT7M6832VD3TA3EX equivalent, this page provides verified functional identity, exact pin roles, timeout timing behavior, reset assertion logic under brownout, and validated alternative options for low-voltage monitoring in battery-powered embedded systems.

Technical Context

The PT7M6832VD3TA3EX uses an internal 444mV reference voltage with 70ppm/°C temperature coefficient to generate its 1.575V reset threshold via resistor scaling. Its comparator ignores fast V_CC transients and asserts RESET when V_CC falls below threshold, holding it low for exactly 210ms after V_CC recovers above threshold.

No manual reset (MR) or RESET-IN pins are present - this variant implements fixed-threshold supervision only. The push-pull active-low RESET output drives CMOS inputs directly without external pull-up, sourcing ≥0.8×V_CC high and sinking ≤0.2×V_CC low at rated load, ensuring deterministic reset signaling across its full 0.9–5.5V operating range.

Key Specifications

Parameter	Value and Actual Design Meaning
Reset Threshold	1.575V ±1.5% - ensures reliable detection of 1.6V nominal supply brownout before µP malfunction.
Timeout Period	210ms - guarantees sufficient reset hold time for full microcontroller initialization after power recovery.
Supply Current	7.5μA typ @ 1.2V - enables multi-year battery life in always-on monitoring circuits.
V_CC Operating Range	0.9V to 5.5V - supports valid reset assertion even during deep brownout down to sub-1V supply collapse.
Output Type	Push-pull active-low - eliminates need for external pull-up; drives RESET line directly to GND or V_CC.
Reset Propagation Delay	70μs - ensures rapid response to supply dips without missing critical power-event windows.
Hysteresis	0.75% of V_TH - prevents chatter during slow-rising/falling supply edges near threshold.

Pinout & Package

PT7M6832VD3TA3EX is packaged in a RoHS-compliant, lead-free SOT23-3L surface-mount package (3-pin, 1.3mm × 2.9mm footprint, 1.45mm height), optimized for space-constrained PCB layouts in portable electronics.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Ground reference for internal comparator and output stage; must be connected to system ground plane.
2	V_CC	Monitored supply input and IC power rail; supplies internal reference and logic; operates from 0.9V to 5.5V.
3	RESET	Active-low push-pull reset output; drives low during fault and remains low for 210ms after V_CC recovery.

Key Features

Feature	Design Value
Factory-trimmed threshold	1.575V ±1.5% - eliminates external resistor network and calibration effort for 1.6V supply monitoring.
Ultra-low quiescent current	7.5μA @ 1.2V - reduces standby power in battery-backed systems by >90% vs. legacy supervisors.
Dedicated 210ms timeout	Fixed delay per JEDEC JESD78 - meets µP reset timing requirements without external RC components.
Brownout immunity	Valid RESET assertion down to V_CC = 0.9V - prevents spurious release during partial power collapse.
Transient rejection	Immune to <100ns negative V_CC spikes - avoids false resets from switching noise or ESD coupling.

Applications

Wearable Health Monitor

Industrial Sensor Node

Use Scenario: Continuous ECG sampling powered by coin-cell battery with 1.5V nominal rail.

IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low RESET to ARM Cortex-M0+ MCU during battery sag below 1.575V.

Use Value: Prevents firmware corruption by guaranteeing 210ms minimum reset pulse while consuming only 7.5μA in sleep mode.

Use Scenario: Wireless temperature node using 1.8V LDO-regulated supply in harsh factory environment.

IC Role / Device Role / Timing Role: Brownout detector triggering hardware reset before ADC or RF transceiver misbehavior occurs.

Use Value: ±1.5% threshold accuracy ensures consistent trip point across -40°C to +85°C, eliminating field failures from thermal drift.

Smart Meter RTC Backup

USB-C Power Delivery Controller

Use Scenario: Real-time clock module backed by supercapacitor maintaining 1.2V rail during main power loss.

IC Role / Device Role / Timing Role: Supervisor monitoring backup rail and asserting RESET to preserve register state during capacitor discharge.

Use Value: Valid reset output down to 0.9V V_CC extends functional supervision window by 250mV beyond competing devices.

Use Scenario: PD controller IC requiring clean reset during 1.2V auxiliary supply ramp-up after cable insertion.

IC Role / Device Role / Timing Role: Power-on reset generator with precise 210ms hold time synchronized to VBUS stabilization.

Use Value: Push-pull output eliminates external pull-up, reducing BOM count and PCB area in space-critical USB-C port designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervisor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS3808G15DBVR	1.5V threshold, 200ms timeout, 1.5μA I_Q, SOT23-6 package with MR pin.	Includes manual reset input and lower quiescent current but requires 6-pin layout and external capacitor for timeout.	Select when MR functionality or sub-2μA standby is mandatory; avoid if board space or pin count is constrained.
MAX6326UT29D3+	2.93V threshold, 200ms timeout, 1.8μA I_Q, SOT23-3 package, no MR/RESET-IN.	Higher threshold unsuitable for 1.2–1.8V rails; identical 3-pin footprint but mismatched voltage range.	Not functionally substitutable - threshold deviation exceeds ±10%, violating core design requirement.

Compared with TPS3808G15DBVR, PT7M6832VD3TA3EX offers tighter threshold tolerance (±1.5% vs. ±2.5%) and pin-compatible simplicity, while MAX6326UT29D3+ fails basic voltage-range compatibility, confirming PT7M6832VD3TA3EX's unique fit for sub-1.6V supply monitoring.

Availability

PT7M6832VD3TA3EX is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, smart meter RTC backup systems, and USB-C power delivery controllers requiring stable component supply with guaranteed long-term availability.

Supply support for PT7M6832VD3TA3EX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-performance interface, timing, and power management ICs for communications and computing markets before acquisition in 2016.

This device belongs to Pericom's PT7M68xx ultra-low-voltage supervisor family, designed specifically to replace discrete reset circuits in battery-powered and energy-harvesting systems operating below 1.8V.

FAQ

What is the minimum V_CC required for valid RESET assertion?

PT7M6832VD3TA3EX guarantees valid active-low RESET assertion down to V_CC = 0.9V. Below this, the push-pull output enters high-impedance state; however, system-level operation is typically nonfunctional below 0.9V, making this the practical lower limit for supervised operation.

Does this part include a manual reset (MR) input?

No. PT7M6832VD3TA3EX has no MR pin - it is a fixed-threshold, single-supply monitor with only GND, V_CC, and RESET pins. Manual reset capability is present only in PT7M6835/6836/6837 (SOT143-4L) variants.

Can the RESET output drive a 10kΩ pull-up to 3.3V?

Yes. The push-pull output sources ≥0.8×V_CC high and sinks ≤0.2×V_CC low. With V_CC = 1.5V, it can sink ≥150μA - sufficient to drive a 10kΩ pull-up to 3.3V while maintaining valid logic levels at the µP RESET pin.

Is the 210ms timeout period adjustable?

No. The 210ms timeout is factory-programmed and unchangeable. It corresponds to the "D3" suffix in the part number and is implemented via on-chip RC timing - no external components or configuration pins affect this value.

PT7M6832VD3TA3EX Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: 1.575V

Output:: Push-Pull, Totem Pole

Reset:: Active Low

Reset Timeout:: 140ms Minimum

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

PT7M6832VD3TA3EX FAQ

1.How can I place an order for PT7M6832VD3TA3EX through Aetrix?

Please submit a Request for Quotation (RFQ) for PT7M6832VD3TA3EX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PT7M6832VD3TA3EX reliable?

The price and inventory of PT7M6832VD3TA3EX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PT7M6832VD3TA3EX is usually 5 days.

3.What payment methods are accepted for PT7M6832VD3TA3EX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PT7M6832VD3TA3EX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PT7M6832VD3TA3EX?

PT7M6832VD3TA3EX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PT7M6832VD3TA3EX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PT7M6832VD3TA3EX?

For technical support, including PT7M6832VD3TA3EX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PT7M6832VD3TA3EX requirements.

6.How does Aetrix verify that PT7M6832VD3TA3EX is sourced from the original manufacturer or authorized distributors?

All PT7M6832VD3TA3EX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PT7M6832VD3TA3EX meets industry standards.

7.What is the process for return or replacement of PT7M6832VD3TA3EX?

All PT7M6832VD3TA3EX units undergo pre-shipment inspection (PSI). If there is an issue with PT7M6832VD3TA3EX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PT7M6832VD3TA3EX part is unused and in its original packaging.

Return procedure for PT7M6832VD3TA3EX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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