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ILA1185A Datasheet(PDF) 3 Page - IK Semicon Co., Ltd |
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ILA1185A Datasheet(HTML) 3 Page - IK Semicon Co., Ltd |
3 / 4 page ILA1185A ELECTRICAL CHARACTERISTICS (ТA= 25°С, voltages are referenced to Pin 14 (ground) unless other noted.) Characteristics Symbol Min Typ Мax Unit Positive Feedback Pin 9 Input Bias Current, Vpin9 = 0 Programming pin voltage related to Pin 1 Transfer Function Gain ∆Vpin8/∆Vpin9 R10=100 kΩ.∆Vpin9=50 mV R10=270 kΩ.∆Vpin9=50 mV Pin 8 Output Internal Impedance IPin9 Vpin10 A A Zpin8 - 1.0 - - - 2xIpin10 1.25 75 36 120 - 1.5 - - - V k Ω Trigger Pulse Generator Output Current (Sink) Vpin2=0V Output Leakage Current Vpin2=+2.0V Output Pulse Width C4=47nF, R10=270kΩ Output Pulse Repetition Period C4=47nF R10=270 kΩ Current Synchronization Threshold Levels Ipin6, Ipin7 IPin2 tP t Isync 60 - - - -40 - - 55 420 - 80 4.0 - -4 +40 mA µA µs µs µA PIN FUNCTION DESCRIPTION Pin No. Function Description 1 VEE This pin is the negative supply for the chip and clamped at -8.6 V by an internal zener. 2 Gate Trigger Pulse This pin supplies - 1.0V triac trigger pulse at twice the line frequency. 3 NC Not connected. 4 Ramp Generator The value of the capacitor at this pin determines the slope of the ramp. 5 NC Not connected. 6 Current Sense This pin senses if the triac is on, and if so, will disable the gate trigger pulse. 7 Voltage Sense The internal timing of the chip is set by the frequency of the voltage at this pin 8 Integration Capacitor This pin is the output of the feedback and the variation in voltage is averaged out by the capacitor. 9 Feedback Input The change in load current is detected by the change in voltage across R9. 10 Current Program The bias current for the circuit is determined by the resistor value at this pin. 11 NC Not connected. 12 Phase Angle Set The voltage at this pin sets the no-toad firing angle. 13 Soft-Start The firing angle is slowly increased from 180o to the set value of Pin 12. 14 VCC Ground 3 |
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Similar Description - ILA1185A |
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