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ICE1CS02 Datasheet(PDF) 6 Page - Infineon Technologies AG |
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ICE1CS02 Datasheet(HTML) 6 Page - Infineon Technologies AG |
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6 / 27 page  Version 1.0 6 25 July 2008 Combi PFC/ PWM Controller ICE1CS02 Pin Configuration and Functionality 1 Pin Configuration and Functionality 1.1 Pin Configuration Figure 1 Pin Configuration(top view) 1.2 Pin Functionality PFC ICOMP (Current Loop Compensation) Low pass filter and compensation of the current control loop. The capacitor which is connected at this pin integrates the output current of OTA2 and averages the current sense signal. PFC VSENSE (Voltage Sense/Feedback) The output bus voltage is sensed at this pin via a resistive divider. The reference voltage for this pin is 3V. PFC OVP (Overvoltage Sense Input) The output bus overvoltage is sensed at this pin via a resistive divider. The reference voltage for this pin is 3V. PFC VCOMP (Voltage Loop Compensation) This pin provides the compensation of the output voltage loop with a compensation network to ground (see Figure 2). This also gives the soft start function which controls an increasing AC input current during start-up. GND (Ground) The GND pin is the ground of the controller. PFC OUT (PFC Gate Output) This pin is the output of the internal driver stage, which has a capability of 1.5A source and 2.0A sink current. Its gate drive voltage is clamped at 15V (typically). VCC (Power Supply) The VCC pin is the positive supply of the IC and should be connected to an external auxiliary supply. The operating range is between 11V and 26V. The turn-on threshold is at 12V and under voltage occurs at 11V. There is no internal clamp for a limitation of the power supply. PWM OUT (PWM Gate Output) This pin is the output of the internal driver stage, which has a capability of 1.5A source and 2.0A sink current. Its gate drive voltage is clamped at 15V (typically). Pin Symbol Function 1 PFC ICOMP Current Loop Compensation 2 PFC VSENSE VBUS Sense Input 3PFC OVP VBUS Overvoltage Sense Input 4 PFC VCOMP Voltage Loop Compensation 5 GND Controller Ground 6 PFC OUT GATE OUT 7 VCC Controller Supply Voltage 8 PWM OUT GATE OUT 9 PWM CS Current Sense 10 PWM SYNC/ Duty Cycle Dual function pin: SYNC and Duty Cycle Setting 11 PWM Preshort Adjustable Blanking Time Input 12 PWM FB Feedback 13 VREF 5V reference voltage 14 VINS HYS Input Voltage Hystersis 15 VINS Input Voltage Brown out 16 PFC ISENSE Current Sense Input Package:PG -DIP-16-4 /PG -DSO-16-17 PFC VSENSE 1 2 3 4 5 6 7 PFC ICOMP GND PFC VCOMP PFC OUT VCC 14 13 12 11 10 9 8 VINS PFC ISENSE PWM PreShort PWM SYNC PWM OUT PWM CS 15 16 PFC OVP PWM FB VINS_HYS VREF |
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