DIONICS, INC.
65 Rushmore Street
Westbury, NY 11590
Phone: (516) 997-7474
Fax: (516) 997-7479
Website: www.dionics-usa.com
OPTO-ISOLATED PHOTOVOLTAIC ISO-GATETM MOSFET DRIVERS
DIG-11-06-030
DIG-11-06-150
DIG-11-08-050
DIG-12-06-025
DIG-12-08-010
DIG-12-08-045
DIG-12-06-100
DIG-12-06-250
Features:
¾ Completely Isolated Voltage Signal Generation
¾ Dielectrically Isolated
¾ Logic Circuit Compatibility
¾ High Open Circuit Voltage
¾ High Operating Temperature
¾ Fast Response Time
¾ High Isolation Resistance
¾ Excellent Input/Output Linearity
¾ Self Limiting Gate Voltage
Applications:
¾ Gate Drive For MOS devices
¾ Gate Drive For SCR
¾ Solid-State Relays
¾ Interface Between Logic Circuits & External Loads
¾ A.T.E. (Automatic Test Equipment)
¾ Switching Equipment
¾ Isolation Amplifiers
¾ Load Control From Microprocessor I/O Ports
¾ Thermocouple Open Detectors
Description:
The photovoltaic MOSFET driver is a State-of- the-Art, optically coupled floating power source used primarily to control
MOSFETs when electrical isolation between input and output is required. The ISO-GATETM is a state-of-the-art opto-
isolator incorporating DIONICS’ photovoltaic (PV) diode arrays and an infrared LED. The diode array is a unique I.C.
consisting of series-connected photovoltaic diodes. The diodes are completely isolated from each other and from their
common substrate by means of SiO2 Dielectric Isolation (DI). These photovoltaic output chips are electrically isolated but
optically coupled to the LED.
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
(Voc). This Voc is floating and is therefore completely isolated. The Voc value depends on the LED input drive and load
impedance. DIONICS, Inc offers a wide variety of package styles including low-cost plastic Mini-DIP’s, high reliability
TO-5 metal cans, 8-pin ceramic side brazed DIP’s and ceramic chip carriers for hybrid manufacturers. Other custom
packages and custom designs are also available.
o Group I: DIG-11-06-030; DIG-11-06-150; DIG-11-08-050.
o Group II: DIG-12-06-025; DIG-12-06-100; DIG-12-06-250; DIG-12-08-010; DIG-12-08-045.
Package Layout:
0.025
0.185 0.250
DIG-11
06-030
xxxx
0.070
0.380
0.020 0.020
0.185 0.250
0.025
DIG-12
08-045
xxxx
0.070
0.380
08/2004
Pin Designation
Pin Number Group I Group
II
1 Input + Input +
2 Input - Input -
3 Not Connected Not Connected
4 Not Connected Not Connected
5 Not Connected Output1+
6 Output + Output1-
7 Not Connected Output2+
8 Output - Output2-
Group I and Group II Equivalent Circuits:
8
3
2
1
7
6
LED PV
2
1
PV
8
5
LED
PV
4
7
6
3
Group I Group II
* Note: DIG-12-06-100 and DIG- 12-06-250 are rated @ 3.4 V Max.
Individual Channel Electrical Characteristics (Ta =250C)
MODEL NUMBERS DIG -
12-08-010 12-06-025 12-08-045 12-06-100 12-06-250 11-06-030 11-08-050 11-06-150 Unit
Parameter Symbol Min. Typ. Min. Typ. Min. Typ. Min. Typ. Min. Typ. Min. Typ. Min. Typ. Min. Typ.
Open Circuit Voltage Voc
Iled = 2mA 8.0 6.5 8.0 6.0 6.0 5.5 9.0 6.0 V
Iled = 10mA 8.0 9.0 6.5 7.5 8.5 9.0 6.5 7.0 6.5 7.3 6.0 6.5 7.5 10.0 6.5 7.0 V
Iled = 30mA 9.0 10.0 7.0 6.3 9.5 10.0 7.5 7.8 7.5 8.0 6.5 7.0 8.5 11.0 7.5 8.0 V
Short Circuit Current Isc
Iled = 2mA 0.5 1.0 1.0 2.0 3.0 1.1 2.0 3.0
µA
Iled = 10mA 1.35 3.0 3.0 6.0 4.0 8.0 8.0 12.0 12.5 25.0 1.0 7.0 4.0 13.0 10.0 18.0 µA
Iled = 30mA 4.0 9.0 9.0 20.0 12.0 25.0 30.0 40.0 37.5 75.0 3.5 20.0 12.0 40.0 30.0 55.0 µA
Turn-On Time
If = 50 mA; C = 10pF
P.W = 100us; Ton - 3.0 - 10.0 - 8.0 - 3.0 - 3.0 - 8.0 - 5.0 - 3.0 µs
f =1kHz; Rs = 10MΩ
Temp. Coefficient Θ - -100 - -80 - -100 - -80 - -80 - -40 - -50 - -40 mV/0C
(Channels in Series)
Isolation Voltage Viso
Iiso = 50µA @ 2 sec 2500 2500 VDC
Operating Temp. Top -500C To +1000C -500C To +800C
(Channels in Series)
Turn-Off Time Toff
If = 50 mA; C = 10pF The Photovoltaic array stops generating current within one microsecond of the trailing edge
P.W = 100us; of LED current the discharge time is solely dependent upon discharge circuitry and capacitive load.
f =1kHz; Rs = 10MΩ
Absolute Maximum Ratings (Ta = 250C)
LED Forward Current
LED Forward Current
LED Forward Voltage
LED Reverse Current
LED Reverse Voltage
Output Forward Voltage
Lead Soldering Time
Storage Temperature
Power Dissipation
Steady State
Peak 10% Duty Cycle
If = 20mA
Vr = 3V
If = 10µA
At 2600C
100 mA
250 mA
1.7V*
100µA
5V
20V
10 sec
-50 to 1250C
150 mW
Typical Applications
1. Power MOSFET Photovoltaic SPST N/O DC Relays
5
PV
2
Rs
1
Output +
Input -
Output -
Enh.
LED
PV
7
DIG-12-06-250
6
Input +
8
2. Power MOSFET SPDT Photovoltaic SPST N/O AC-DC Relays:
Enh.
7
PV
8
Input -
LED
PV
2
6
5
Rs
Output
DIG-12-06-250
Enh.
1
Output
Input +
3. Power MOSFET Photovoltaic SPST N/O Relays With High Speed Turn-Off:
T.O
Cir
DIG-12-06-250
Input -
6
PV
D1
Output -
8
1
7
5
Enh.
LED
PV
2
R
Output +
Enh.
Input +
T.O
Cir
4. Power MOSFET Photovoltaic SPST N/O Relays With Opto-Transitor for High Speed Turn-Off:
6
Output -
2
Input +
Input -
1
Controller Input
LED PV
Enh.
DIG-11-06-150
Output +
8
5. Open Thermocouple Detector:
8
LED PV
Input +
Thermo
Couple
6
1
Input -
2
Open Thermo Couple Output
V Ref
DIG-11-06-030
6. Isolation Amplifier:
-
+
LM324
50K1M LED
PV
Vin 0.5V
100K
+10V
-
+
LM324
6
VOut
8
7 51
1MPV
27 Ohm
2
