Product Summary

The LM2438T is an integrated high voltage CRT driver circuit designed for use in color monitor applications. The IC contains three high input impedance, wide band amplifiers which directly drive the RGB cathodes of a CRT. The LM2438T has its gain internally set to −14 and can drive CRT capacitive loads as well as resistive loads present in other applications, limited only by the package’s power dissipation. The LM2438T is packaged in an industry standard 9-lead TO-220 molded plastic power package. See Thermal Considerations section.

Parametrics

LM2438T absolute maximum ratings: (1)Supply Voltage (VCC): +90V; (2)Bias Voltage (VBB): +16V; (3)Input Voltage (VIN): 0V to 6V; (4)Storage Temperature Range (TSTG): -65℃ to +150℃; (5)Lead Temperature (Soldering, <10 sec.): 300℃; (6)ESD Tolerance, Human Body Model: 2 kV; (7)ESD Tolerance, Machine Model: 250V.

Features

LM2438T features: (1)Well matched with LM1279 video preamp; (2)0V to 5V input range; (3)Stable with 0–20 pF capacitive loads and inductive peaking networks; (4)Convenient TO-220 staggered lead package style; (5)Standard LM243X Family Pinout which is designed for easy PCB layout.

Diagrams

LM2438T block diagram

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