DIG-11-8-30DD Dionics Inc., DIG-11-8-30DD Datasheet

DIG-11-8-30DD

Manufacturer Part Number

DIG-11-8-30DD

Description

Manufacturer

Dionics Inc.

Datasheet

1.DIG-11-8-30DD.pdf (4 pages)

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Features:

Description:

The photovoltaic MOSFET-driver is a State-of- the-Art, optically coupled floating power source used primarily to control

MOSFETs or IGBTs when electrical isolation between input and output is required.

In addition to the infrared LED and photovoltaic (PV) diode array, each of the DD (Dynamic Discharge) products

contains circuitry that rapidly discharges the power MOSFET gate when the LED is deactivated. The unique rapid

discharge features of the photovoltaic MOSFET-drivers make them particularly useful for high-side switching of N-

channel MOSFETs in solid-state relays, DC motor control and switching regulator applications.

The typical input circuit to the LED is a limiting resistor connected in series with the LED. When activated, the LED

emits infrared light towards the photovoltaic diode array, which then responds by generating an open circuit voltage (V

thus disabling the turn-off circuitry. The self-limiting photovoltaic output of the diode array is floating and therefore, can

be safely applied directly to the gate and source of a MOSFET, regardless of the source potential of the MOSFET. When

the LED is deactivated, the active turn-off circuit discharges the capacitive input of the MOSFET. The active turn-off

circuitry is designed such that the turn-off time of the MOSFET is relatively independent of the input capacitance of the

MOSFET over a range of 50 to 5000 pF. Standard packages include low cost plastic mini-dips and hermetic 8-pin DIP

ceramic side brazed.

0.025

! Fast Turn Off, Active Gate Discharge

! Dielectrically Isolated

! Logic Circuit Compatibility

! High Open Circuit Voltage

! High Operating Temperature

! Fast Response Time

! High Isolation Resistance

! Excellent Input/Output Linearity

! Self Limiting Gate Voltage

Photovoltaic MOSFET Drivers With Dynamic Discharge*

DIG-11

8-30-DD

xxxx

" Package Layout:

0.380

0.070

DIG-11-8-30-DD; DIG-12-08-30-DD; DIG-22-8-30-DD

DIONICS, INC.

65 Rushmore Street

Westbury, NY 11590

0.020

0.025

DIG-12

8-30-DD

xxxx

0.380

0.070

0.020

Pin Designation

Number

Applications:

! Gate Drive For MOS devices

! Gate Drive For SCR

! Solid-State Relays

! Interface Between Logic Circuits & External Loads

! A.T.E. (Automatic Test Equipment)

! Switching Equipment

! Isolation Amplifiers

! Load Control From Microprocessor I/O Ports

! Thermocouple Open Detectors

Not Connected Not Connected

Not Connected

11-8-30-DD

Output +

Output -

Input +

Input -

Website:

Part Number

12-8-30-DD

Output1+

Output2+

Output1-

Output2-

Phone: (516) 997-7474

Input +

www.dionics-usa.com

Input -

Fax: (516) 997-7479

*US Patent 4,931,656

22-8-30-DD

Output2+

Output1+

Output2-

Output1-

Input 1+

Input 2+

Input 1-

Input 2-

07/2002

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