Document
HT0740
High-Voltage Isolated MOSFET Driver
Features
• ±400V Input to Output Isolation • Low Input Logic Current, 500 µA (Maximum) • No External Voltage Supply Required • Floating Isolated Output Drivers • 5V Logic Compatible
Applications
• Telecommunications • Modems • Solid State Relays • High-side Switches • High-end Audio Switches • Avionics • Automatic Test Equipment
General Description
The HT0740 is a single-channel high-voltage low input current isolated driver that uses the HVCMOS® technology. It is designed to drive discrete MOSFETs configured as high-side switches up to 400V. The HT0740 generates an independent DC-isolated voltage across +VOUT and –VOUT when the logic input is at a logic high. The HT0740 does not require any external power supplies. The internal supply voltage is provided by the logic input when it is in high state.
Package Type
8-lead SOIC (Top view)
VIN 1 NC 2 -VOUT 3 +VOUT 4
8 NC 7 GND 6 NC 5 NC
See Table 2-1 for pin info.