ILA1185A INTEGRAL | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 3
Technical content
- Supply Power Obtained from AC Line
- Can be used with 220 V/50 Hz or 110 V/60 Hz
- Low Count/Cost External Components
- Optimum Triac Firing (2nd and 3rd Quadrants)
- Repetitive Trigger Pulses when Triac Current is Intenupted by Motor Brush Bounce
- Triac Current Sensing to Allow Inductive Loads
- Programmable Soft-Start
- Power Failure Detection and General Circuit Reset
- Low Power Consumption; 6.0 mA Pin Connection 1 14 2 13 3 12 4 11 5 10 6 9 7 8 VEE VCC Gate trigger Soft start NC Finning Angle Set Ramp Generator NC NC Bias Current Current Cense Feedback Input Voltage Cense Integration Cap
Figure 1. Representative Block Diagram
MAXIMUM RATINGS (voltages are referenced to Pin 14 (ground) unless other noted) Rating Symbol Value Unit Maximum Voltage Range per Listed Pin Pins3. 5,11 (not connected) Pins 4,8.13 Pin 2 Maximum Positive Voltage (No minimum value allowed; see current ratings) V pin V pin12 Vpin1 -20 to+20 CC to 0 -3.0 to +3.0 0.5 V Maximum Current per Listed pin Pin 1 Pin 6 and 7 Рin 9 Pin 10 Pin12 I pin ±20 ±2.0 ±0.5 ±300 -500 mA mA mA µA µA Maximum Power Dissipation (ТA=25oС) P D 250 mW Maximum Thermal Resistance, .Junction-to-Ambient RθJA 100 oC/W Operating Ambient Temperature Range T A 0 to + 70 oC Storage Temperature Range Tstg -55 to <+ 125 oC ELECTRICAL CHARACTERISTICS (ТA= 25°С, voltages are referenced to Pin 14 (ground) unless other noted.) Characteristics Symbol Min Typ Мax Unit -VCC -ICC -9.6 -2.0 -8.6 -1.0 -7.6 V mA Power Supply Zener Regulated Voltage, (Vpin1) I pin1= 2.0 mA Circuit Current Consumption. Ipin1 V pin1=-6,0V,Ipin2=0A Monitoring Enable Supply Voltage (VEN) Monitoring Disable Supply Voltage (VDIS) Vpin1EN Vpin1DIS VCC+0.2 VEN+0.12 VCC+0.5 VEN+0.3 V Phase Set Control Voltage Static Offset V pin3 – Vpin12 Pin 12 Input Bias Current V pin4 – Vpin12 Residual Offset Voff Ipin12 1.2 -200 180 2.0 V nА mV Soft-Start Capacitor Charging Current Rpin10 = 100 kΩ Vpin13 from -Vcc to - 3.0V lpin13 -17' -14 -11 µA Sawtooth Generator Sawtooth Capacitor Discharge Current R 10=100 kΩ, Vpin4 from -2.0 to -6.0V Capacitor Charging Current Sawtooth -High Voltage (V pin 4) Sawtooth Minimum Low Voltage (Vpin4) lpin4 lpin4 VHTH VLTH -10 -2.5 -1.6 -7.1 -1.5 -1.0 µA mA V . V
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 Z pin8 1.0 2xI pin10 1.25 120 1.5 V kΩ 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 -40 420 4.0 +40 mA µA µs µs µA PIN FUNCTION DESCRIPTION Pin No. Function Description 1 V EE 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 180 o to the set value of Pin 12.