Littelfuse EV Series 1A Sensitive Triacs Datasheet

Category: Electronics, Littelfuse Inc, Trigger Devices

Description and Features

The Littelfuse EV Series 1 Amp Sensitive Triacs datasheet highlights the specifications of a bi-directional solid state switch designed for microprocessor interfacing in compact TO-92 and surface mount SOT223 packages. The reliability of the die voltage blocking junctions is ensured through glass-passivation which provides long-term stability.

Key Features Include:

RoHS compliance and Halogen-Free design.
Blocking voltage capability up to 800V (VDRM/VRRM).
Surge capability of 10 Amps (ITSM).
Static dv/dt greater than 20 Volts per microsecond.
Availability in both through-hole and surface-mount packaging.

Applications

Specifically tailored for white goods, the LOI EV Series excels in controlling valves in appliances such as washing machines and serves as a dependable substitute for mechanical and hybrid relays that require extended life spans.

Absolute Maximum Ratings and Electrical Characteristics

Absolute maximum ratings delineate the extreme thresholds not to be exceeded without risking damage to the Triac. For instance, the RMS on-state current is specified at 1.0A for both TO-92 and SOT223 packages under specified temperature conditions. The datasheet also outlines non-repetitive peak on-state current (ITSM) as well as critical rate of rise of on-state current (dI/dt), with detailed values specific to certain operating conditions.

Some Absolute Maximum Ratings:

RMS on-state current (IT(RMS)): 1.0A
Surge peak on-state current (ITSM): 12A for TO-92, SOT223 under specified conditions
dv/dt: Critical rate of rise of on-state current at specified temperatures

Electrical Characteristics and Thermal Resistances

The datasheet provides in-depth electrical characteristics including gate trigger current (I_GT), holding current (I_H), and critical rate-of-rise parameters. These characteristics are vital for designers to understand the triggering and operating conditions of the Triac. Also disclosed are typical thermal resistances demonstrating how well the device can dissipate heat under different conditions. The document presents maximum values for peak on-state voltage (VTM) and off-state current (IDRM), as well as the thermal resistances between junction-to-case (RθJC) and junction-to-ambient (RθJA), defined in °C/W.

Sample Electrical Characteristics and Thermal Resistances:

Gate Trigger Current (I_GT): 12mA to 60mA
Gate Trigger Voltage (V_GT): Maximum of 1.3V
dv/dt: Minimum of 20V/μs (dc)
Thermal Resistance Junction-to-Case: 100°C/W for TO-92, indicative of heat transfer efficiency.

Revisions and Notices

The datasheet contains a notice about Littelfuse’s policy to change specifications without prior warning, and the version provided has a dated revision of 05/29/19, signaling the importance of securing the latest datasheet revisions for accurate designs and applications.