HT0740
High Voltage Isolated MOSFET Driver
Ordering Information
Input to Output
Package Option
8-Pin Narrow Body SOIC
HT0740LG
Isolation Voltage
±400V
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.
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±400V input to output isolation
No external voltage supply required
Low input logic current, 500µA max
Floating isolated output
5.0V logic compatible
Applications
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Telecommunications
Modems
Pin Configuration
Solid state relays
High side switches
High end audio switches
Avionics
ATE
VIN
NC
N/C
GND
N/C
N/C
1
2
3
4
8
7
6
5
Absolute Maximum Ratings1
-VOUT
+VOUT
Input to Output Isolation Voltage, VISO
±400V
Logic Input Voltage, VIN
Operating Temperature
Storage Temperature
Soldering Temperature2
–0.5 to +7.0V
–40°C to +85°C
–55°C to +150°C
300°C
top view
SO-8
Note:
1. All voltages are referenced to ground.
2. Distance of 1.6mm from case for 10 seconds.
12/13/01
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the
Supertex website: http://www.supertex.com. For complete liability information on all Supertex prod1ucts, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.