Microchip Technology TP2502N8-G

Overview

TP2502N8-G from Microchip Technology is a P-channel enhancement-mode vertical DMOS FET in a 3-lead SOT-89 package, featuring –2.4 V maximum gate threshold voltage, 2 Ω typical R_DS(ON) at V_GS = –10 V, –20 V drain-to-source breakdown voltage, and 125 pF maximum input capacitance - optimized for low-voltage logic-level switching in battery-operated systems and solid-state relays.

For engineers reviewing the TP2502N8-G datasheet, TP2502N8-G pinout, TP2502N8-G application, or TP2502N8-G equivalent, this device serves as a high-input-impedance, thermally stable power switch with verified low-threshold operation, fast 10 ns turn-on delay, and no secondary breakdown risk - critical for TTL/CMOS interface design and photovoltaic drive circuits.

Technical Context

The TP2502N8-G employs a vertical DMOS structure with silicon-gate process, delivering bipolar-like power handling while retaining MOS advantages: positive temperature coefficient of R_DS(ON), inherent thermal stability, and freedom from thermal runaway. Its –2.4 V V_GS(th) enables direct drive from 3.3 V or 5 V logic without level shifting.

It integrates an intrinsic body diode with –1.3 V typical forward voltage and 300 ns reverse recovery time, supporting bidirectional current flow in analog switches and line drivers. Gate charge characteristics (Q_G ≈ 8–20 nC per Figure 2-12) support efficient PWM control at frequencies up to several hundred kHz.

Key Specifications

Pinout & Package

TP2502N8-G uses a 3-lead SOT-89 (TO-243AA) surface-mount package with exposed drain pad for thermal enhancement. Pin 1 is Gate, Pins 2 and 4 are internally connected Drain terminals, and Pin 3 is Source - enabling low-inductance, high-current drain routing and simplified PCB layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel MOSFET switching applications.

Compared with Si2301DDS-T1-GE3 and DMG1012T, TP2502N8-G trades lower R_DS(ON) for superior thermal robustness (133°C/W θ_JA, 150°C T_J), higher safe operating voltage (–20 V), and proven secondary-breakdown immunity - making it uniquely suitable for industrial relay replacement and photovoltaic string isolation where reliability trumps raw conductivity.

Availability

TP2502N8-G is available at Aetrix Electronics and suitable for battery-operated systems, solid-state relays, and photovoltaic drives requiring stable component supply, RoHS-compliant packaging, and long-term industrial lifecycle support.

Supply support for TP2502N8-G 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

Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power semiconductors, with ISO/TS-16949 certified manufacturing and global technical support infrastructure.

The TP2502N8-G belongs to Microchip's vertical DMOS FET product line, engineered specifically for high-reliability, low-threshold switching in logic interfaces, battery management, and renewable energy systems where thermal stability and gate drive simplicity are essential.

FAQ

What is the maximum gate-to-source voltage rating for TP2502N8-G?

The TP2502N8-G has a gate-to-source voltage rating of ±20 V, meaning it can safely withstand –20 V to +20 V between gate and source terminals. This rating allows robust gate drive design with margin against transient spikes and simplifies ESD protection circuitry. Exceeding ±20 V risks permanent gate oxide damage, as confirmed in the Absolute Maximum Ratings table on page 2 of DS20005962A.

Does TP2502N8-G include an integrated body diode, and what are its key parameters?

Yes, TP2502N8-G incorporates an intrinsic body diode with a typical forward voltage of –1.3 V at –1.5 A and a reverse recovery time of 300 ns. These values are measured under V_GS = 0 V conditions and support bidirectional current handling in analog switches and line drivers. The diode's soft recovery characteristic helps reduce EMI in switching applications, as documented in the Diode Parameter section on page 2 of DS20005962A.

Can TP2502N8-G operate reliably at elevated temperatures such as 125°C junction temperature?

Yes, TP2502N8-G is rated for continuous operation up to +150°C junction temperature, and its DC electrical specifications include a –10 mA I_DSS limit at T_A = 125°C. The device's positive R_DS(ON) temperature coefficient ensures current sharing stability in parallel configurations. Thermal derating curves in Figure 2-5 confirm usable power dissipation (≥0.4 W) even at 125°C ambient when mounted on standard FR4.

How does the TP2502N8-G pinout differ from standard SOT-89 layouts, and why are pins 2 and 4 both labeled Drain?

TP2502N8-G uses a nonstandard SOT-89 variant where pins 2 and 4 are internally bonded to the same drain node - a configuration explicitly defined in Table 3-1 and the top-view diagram on page 6 of DS20005962A. This dual-drain arrangement improves thermal conduction and current handling by distributing drain current across two leads and the exposed pad, reducing effective lead resistance and enhancing reliability in high-pulse-current applications.

Is TP2502N8-G suitable for use in photovoltaic (PV) string isolation, and what specification supports this application?

Yes, TP2502N8-G is suitable for PV string isolation due to its –20 V drain-to-source breakdown voltage (BVDSS), which provides headroom above typical PV open-circuit voltages (≤18 V per string), and its –100 μA maximum zero-gate-voltage drain current (I_DSS) at rated voltage - minimizing dark-current power loss. These parameters are validated in the DC Electrical Characteristics table on page 2 of DS20005962A and align with Microchip's stated Photovoltaic Drives application.