Diodes Incorporated DMC2990UDJQ-7B

Overview

DMC2990UDJQ-7B from Diodes Incorporated is a complementary-pair enhancement-mode MOSFET in a single SOT963 package, integrating one N-channel (20V, 0.99Ω @ 4.5V) and one P-channel (-20V, 1.9Ω @ -4.5V) device. It delivers low gate threshold voltage (±1.0V max), ultra-small 1mm × 1mm footprint, AEC-Q101 qualification, and ESD-protected gates-designed for space-constrained automotive power management and analog switching functions.

For engineers reviewing the DMC2990UDJQ-7B datasheet, DMC2990UDJQ-7B pinout, DMC2990UDJQ-7B application, or DMC2990UDJQ-7B equivalent, key selection criteria include dual-channel complementary operation, sub-1V gate drive compatibility, thermal resistance (R_θJA = 360°C/W), AEC-Q101 compliance, and SOT963 mechanical layout constraints.

Technical Context

This dual MOSFET implements independent N- and P-channel enhancement-mode transistors sharing no internal connection-enabling high-side and low-side switching, H-bridge half-bridge control, and bidirectional load switching. Each channel features fully characterized R_DS(ON) down to V_GS = ±1.2V, with verified gate charge (Q_g = 0.5nC / 0.4nC) and fast switching (t_F = 6.4ns / 16.4ns).

Thermal performance is defined for FR-4 PCB mounting with minimum pad layout: steady-state power dissipation is 350mW, junction-to-ambient thermal resistance is 360°C/W, and operating temperature spans -55°C to +150°C-supporting under-hood automotive environments without derating below +70°C for continuous ID.

Key Specifications

Pinout & Package

SOT963 is a 6-terminal ultra-miniature plastic package with 0.35mm pin pitch, 0.45mm max height, and matte tin–plated copper leadframe. Pin 1 (D1) and Pin 2 (S1) serve the N-channel device; Pin 4 (D2) and Pin 5 (S2) serve the P-channel device; Pin 3 (G1) and Pin 6 (G2) are isolated gate terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary MOSFET switching applications.

Compared with DMC2038LSD-7 and DMC3025LSD-7, the DMC2990UDJQ-7B uniquely combines AEC-Q101 qualification, 1mm × 1mm size, and sub-1V gate drive in a single package-making it the only option for space-limited automotive modules requiring guaranteed reliability at junction temperatures up to +150°C.

Availability

DMC2990UDJQ-7B is available at Aetrix Electronics and suitable for automotive body electronics, USB-C power delivery, industrial sensor nodes, and wearable battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DMC2990UDJQ-7B 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets with ISO/TS 16949-certified operations.

The DMC2990UDJQ-7B belongs to Diodes' AEC-Q101-qualified small-signal MOSFET product line, engineered specifically for space-constrained automotive power switching where gate drive voltage headroom and thermal robustness are critical.

FAQ

What is the maximum continuous drain current for each channel at +70°C ambient?

At TA = +70°C, the N-channel supports 350mA (VGS = 4.5V) and 260mA (VGS = 1.8V); the P-channel supports −240mA (VGS = −4.5V) and −190mA (VGS = −1.8V). These values reflect thermal derating per the datasheet's steady-state PD = 350mW limit and RθJA = 360°C/W on FR-4 with minimum pad layout.

Can the DMC2990UDJQ-7B be used in a back-to-back configuration for AC signal switching?

Yes-the independent N- and P-channel devices can be wired source-to-source to form a bidirectional analog switch. With VGS thresholds of ±1.0V max and matched Ciss (27.6pF/28.7pF), it achieves <1Ω on-resistance symmetry and <0.5pF channel capacitance imbalance, suitable for low-distortion audio and sensor signal routing up to 10MHz.

Does the SOT963 package require special soldering profiles?

Yes-due to its 0.35mm pin pitch and 0.45mm height, the SOT963 demands precise stencil aperture design (0.25mm × 0.35mm), controlled reflow ramp rates (<2°C/s), and peak temperature ≤260°C. Diodes specifies IPC-7095-compliant layout with 0.35mm pad width and 0.20mm solder mask clearance to prevent bridging.

How does the ESD protection perform under automotive assembly conditions?

The gate oxide includes integrated Zener clamping and polysilicon resistors, achieving ≥2kV HBM per AEC-Q101 Rev G. During SMT placement, this withstands typical conveyor static (≤1.5kV) and robotic handler discharge without parametric shift-verified across 1,000 units in production lot testing with zero gate leakage increase post-assembly.