Optically Isolated Gate Drive Circuit
CPC1590
Driver Characteristics
Parameter
Input Current
Description
Units
mA 2.5
Rating
Switching Speed (IF=5mA, MOS Input Capacitance=4nF) tON tOFF1 tOFF2 12 125 210 μs
The CPC1590 is a MOSFET Gate Driver that requires no external power supply: it regulates the MOSFET voltage, up to 200V, down to 12.2V for internal use. It is specifically designed for low duty cycle switching frequencies that drive 4nF of gate capacitance. The CPC1590 accomplishes very fast MOSFET turn-on by supplying stored charge, from an external capacitor, to the MOSFET gate when input control current is applied to the device’s LED. After the MOSFET is turned on, photocurrent from the input optocoupler keeps it on for as long as sufficient input control current flows, so there is no low-frequency operating limit. When the MOSFET is turned off, the storage capacitor charges from the device’s regulated internal voltage in preparation for the next turn-on. Because it is provided in a small, 8-pin, Flatpack package and requires no separate power supply, the CPC1590 provides a flexible design solution that consumes the least amount of PCB land area.
Features
• • • • • • • • • Drives External Power MOSFET Low LED Current (2.5mA) Requires No External Power Supply Load Voltages up to 200V High Reliability Small 8-pin Surface Mount Flatpack Package Machine Insertable, Wave Solderable Tape and Reel Version Available 3750Vrms Input-to-Output Isolation
Applications
• • • • • • Industrial Controls Instrumentation Medical Equipment Isolation Electronic Switching I/O Subsystems Appliances
Approvals
• UL Recognized Component File #: E76270
Ordering Information
Part Description
8-Pin Flatpack (50/Tube) 8-Pin Flatpack (1000/Reel)
Pb
RoHS
2002/95/EC
e3
CPC1590P CPC1590PTR
Figure 1. CPC1590 Block Diagram
CPC1590
8 1 4 NC NC 7 VCAP
VL1
5 LED + 2
VG
LED -
3
6
VL2
1
DS-CPC1590 - R00B
PRELIMINARY
CPC1590
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 General Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 3 3 3 3 3 4 4 5
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. Device Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1 LED resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Storage Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 Transistor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 7 8
5. CPC1590 Used as an AC Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6. Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Washing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3 Mechanical Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4 Tape and Reel Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 9 9 9 9
2
PRELIMINARY
R00B
CPC1590
1. Specifications
1.1 Package Pinout 1.2 Pin Description
N/C LED + LED N/C
1 2 3 4
8 7 6 5
VCAP VL1 VL2 VG
Pin# 1 2 3 4 5 6 7 8
Name LED + LED VG VL2 VL1 VCAP Not connected
Description Positive input to LED Negative input to LED Not connected Output, MOSFET Gate Control -Load Voltage DC, ±Load Voltage AC +Load Voltage DC, ±Load Voltage AC Storage Capacitor Voltage
1.3 Absolute Maximum Ratings Parameter Blocking Voltage (VDS) Reverse Input Voltage Input Control Current Peak (10ms) Input Power Dissipation Total Package Dissipation Isolation Voltage (Input to Output) Operational Temperature Storage Temperature Rating 200 5 50 1 20 200 3750 -40 to +110 -40 to +125 Units VP V mA A mW mW Vrms °C °C
1.4 ESD Rating ESD Rating (Human Body Model) 1000 V
1.5 Recommended Operating Conditions Parameter Load Voltage Input Control Current Forward Voltage Drop Operating Temperature Symbol VL IF VF TA Min 15 2.5 1 -40 Max 200 10 1.4 +110 Units V mA V °C
Absolute maximum electrical ratings are at 25°C
Absolute maximum ratings are stress ratings. Stresses in excess of these ratings can cause permanent damage to the device. Functional operation of the device at conditions beyond those indicated in the operational sections of this data sheet is not implied.
R00B
PRELIMINARY
3
CPC1590
1.6 General Conditions Unless otherwise specified, minimum and maximum values are guaranteed by production testing. Typical values are characteristic of the device at 25°C and are the result of engineering evaluations. They are 1.7 Electrical Specifications provided for informational purposes only and are not part of the manufacturing testing requirements. Unless otherwise noted, all electrical specifications are listed for TA=25°C.
Parameter
Load Side Characteristics
Gate Voltage
Conditions
IF=2.5mA IF=5mA IF=10mA IF=2.5mA -40°C
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