Texas Instruments EMB1412MY/NOPB

Overview

EMB1412MY/NOPB from Texas Instruments is a single-channel high-speed MOSFET gate driver in an 8-pin HVSSOP package, delivering 7 A sink and 3 A source peak output current with 25 ns typical propagation delay and 14 ns/12 ns rise/fall times into 2 nF load. It supports both inverting and non-inverting logic inputs and operates across 3.5 V to 14 V supply range for Li-ion battery management, 48 V systems, and UPS applications.

For engineers reviewing the EMB1412MY/NOPB datasheet, EMB1412MY/NOPB pinout, EMB1412MY/NOPB application, or EMB1412MY/NOPB equivalent, key selection criteria include UVLO threshold (2.4–3.5 V), compound CMOS/bipolar output architecture, split-supply capability via dedicated IN_REF and VEE pins, and thermal performance (RθJA = 60°C/W) in thermally enhanced HVSSOP.

Technical Context

The EMB1412MY/NOPB integrates a compound output stage combining MOS and bipolar transistors in parallel: the MOS device ensures rail-to-rail output swing (VCC to VEE), while the bipolar device delivers high peak current during the Miller plateau region. This architecture reduces output current variation over voltage and temperature.

It features dual TTL-compatible inputs (IN and INB), independent input ground (IN_REF), and separate power ground (VEE), enabling flexible single-supply (IN_REF = VEE) or split-supply (IN_REF = logic ground, VEE = negative bias) configurations. UVLO disables the output when VCC–IN_REF falls below 2.8 V, holding OUT low for MOSFET protection.

Key Specifications

Pinout & Package

The EMB1412MY/NOPB uses an 8-pin HVSSOP (DGN) package with 3.00 mm × 3.00 mm body size and thermally enhanced exposed pad bonded to die substrate. The pad must be soldered to VEE ground plane for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar MOSFET gate driver applications.

Compared with UCC27531DR and LM5113SDX/NOPB, the EMB1412MY/NOPB uniquely provides dedicated IN_REF and VEE pins for true split-supply operation, enabling robust negative gate biasing and isolation between logic and power grounds - critical for battery protection ICs and high-reliability 48 V systems where ground loop immunity is mandatory.

Availability

EMB1412MY/NOPB is available at Aetrix Electronics and suitable for Li-ion battery management systems, 48 V automotive subsystems, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for EMB1412MY/NOPB 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

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and digital signal processing technologies for industrial, automotive, and communications markets.

The EMB1412MY/NOPB belongs to TI's high-performance gate driver product line, engineered specifically for high-current, high-speed switching in battery-powered and high-voltage DC systems where thermal efficiency, UVLO protection, and ground isolation are critical.

FAQ

What is the maximum allowable voltage difference between VCC and IN_REF for EMB1412MY/NOPB?

The absolute maximum rating specifies VCC to IN_REF as −0.3 V to +15 V, but the recommended operating condition requires a minimum of 3.5 V and maximum of 14 V differential. Exceeding 14 V risks damage to internal level-shifting circuitry and violates the safe operating area defined in Section 6.1 of the datasheet. For reliable operation, maintain VCC–IN_REF within 3.5 V to 14 V.

Can EMB1412MY/NOPB drive a MOSFET with negative gate voltage (e.g., −5 V) relative to source?

Yes. When configured in split-supply mode, connect IN_REF to controller ground and VEE to a negative bias rail (e.g., −5 V). The EMB1412MY/NOPB output swings from VEE to VCC, so with VCC = +12 V and VEE = −5 V, OUT delivers −5 V to +12 V relative to IN_REF - enabling robust negative VGS turn-off essential for high-reliability battery disconnect switches.

How should the exposed thermal pad of EMB1412MY/NOPB be connected on the PCB?

The exposed pad must be soldered directly to the VEE ground plane using ≥4 thermal vias (0.3 mm diameter, filled or capped) connecting to inner-layer ground planes. Per TI layout guidelines, this pad is internally bonded to the die substrate and serves as primary thermal and electrical return path. Leaving it floating or connecting to a different net violates thermal specifications and risks junction overheating above 125°C.

Does EMB1412MY/NOPB support TTL and CMOS logic levels simultaneously on IN and INB inputs?

Yes. Both IN and INB have TTL-compatible thresholds (VIH = 2.3 V min, VIL = 0.8 V max) and high-impedance CMOS input buffers. Either pin accepts standard 3.3 V or 5 V logic signals. When unused, IN should be pulled up to VCC and INB pulled down to VEE - ensuring no floating inputs cause spurious output transitions during power-up or fault conditions.

What is the purpose of the N/C pins (pins 5 and 8) on EMB1412MY/NOPB?

Pins 5 and 8 are not internally connected - they are un-bonded and electrically isolated from all internal circuitry. The datasheet explicitly states they must remain unconnected on the PCB. Routing traces to or placing components on these pins introduces parasitic capacitance and risk of mechanical shorting, potentially degrading switching performance or causing latch-up under ESD events.