HT0740 High Voltage, Isolated MOSFET Driver Features General Description ► ► ► ► ► The Supertex HT0740 is a single channel, high voltage, low input current, isolated driver utilizing Supertex’s proprietary 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 the pair of outputs when the logic input is at a logic high. The HT0740 does not require any external power supplies. The internal supply voltage is supplied from the logic input when it is in the high state. ±400V input to output isolation Low input logic current, 500µA max No external voltage supply required Floating isolated output drivers 5.0V logic compatible Applications ► ► ► ► ► ► ► Telecommunications Modems Solid state relays High side switches High end audio switches Avionics ATE Block Diagram Isolation Barrier VIN R 1 Logic & Internal Clock Driver 4 + VOUT – 10R 3 R GND 7 VISO HT0740 Ordering Information Package Options Device 8-Lead SOIC (Narrow Body) HT0740 HT0740LG HT0740LG-G -G indicates package is RoHS compliant (‘Green’) Pin Configuration Absolute Maximum Ratings Parameter Value Input to output isolation voltage, VISO ±400V VIN 1 NC 2 HT0740 8 NC 7 GND Logic input voltage, VIN -0.5 to +7.0V –VOUT 3 6 NC Operating temperature -40°C to +85°C +VOUT 4 5 NC Storage temperature Soldering temperature HT0740 -55°C to +150°C 1 (Top View) 300°C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. Note 1. Distance of 1.6mm from case for 10 seconds. DC Electrical Characteristics (T = -40°C J Symbol Parameter to +85°C unless otherwise specified) Min Typ Max Units Conditions IH Logic high input current - - 500 µA VIN = 5.0V IL Logic low input current (quiescent) - - 10 µA VIN = 0.5V 4.5 - - V VIN = 3.15V, no load 8.5 - - V VIN = 4.5V, no load - - 0.8 V No load ±400 - - V --- Min Typ Max Units Turn-on delay time - - 50 µs Rise time - - 650 µs Turn-off delay time - - 150 µs Fall time - - 3.0 ms VOUT Output voltage across output terminals VIN Input voltage for zero output VISO Input to output isolation voltage AC Electrical Characteristics Symbol td(ON) tr td(OFF) tf Parameter Conditions See timing diagram and test circuit CL = 600pF, TA = 25°C Recommended Operating Conditions Symbol Parameter Min Typ Max Units VIH Logic input high voltage 3.15 - 5.5 V --- VIL Logic input low voltage 0 - 0.5 V --- TA Operating temperature -40 - +85 2 O C Conditions --- HT0740 Timing Diagram 4.5V 50% 50% VIN 0V 90% VOUT 90% 10% 10% td(ON) tr td(OFF) tf Test Circuit 4.5V 1 VIN + 4 VOUT 0V VOUT 7 - GND HT0740 3 3 CL = 600pF HT0740 8-Lead SOIC (Narrow Body) LG Package Outline 4.90 ± 0.10 8 6.00 ± 0.20 Notes: 1. All dimensions in millimeters. Angles in degrees. 2. If the corner is not chamfered, then a Pin 1 identifier must be located within the area indicated. Note 2 3.90 ± 0.10 1 5° - 15° (4 PLCS) Top View 0.17 - 0.25 0.25 - 0.50 45° Note 2 1.25 MIN 1.75 MAX 0° - 8° 0.40 - 1.27 0.10 - 0.25 1.27BSC 0.31 - 0.51 End View Side View (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) Doc.# DSFP-HT0740 A040207 4