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NCP81232 Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP81232 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 24 page NCP81232 www.onsemi.com 3 PIN DESCRIPTION Pin Description Type Name 14 OTP2 /REFIN Analog Input Over Temperature Protection 2 / Reference Input. Voltage at this pin sets over−temperature threshold for channel 2. Reference input pin in DDR mode. 15 COMP2 Analog Output Compensation 2. Output pin of error amplifier of channel 2. 16 FB2 Analog Input Feedback 2. Inverting input of internal error amplifier for channel 2. 17 DIFFOUT2 Analog Output Differential Amplifier Output 2. Output pin of differential voltage sense amplifier of channel 2. 18 VSN2 Analog Input Voltage Sense Negative Input 2. Inverting input of differential voltage sense amplifier of channel 2. 19 VSP2 Analog Input Voltage Sense Positive Input 2. Non−inverting input of differential voltage sense amplifier of channel 2. 20 PWM4 Analog Output PWM 4. PWM output of phase 4. 21 ISN4 Analog Input Current Sense Negative Input 4. Inverting input of differential current sense amplifier of phase 4. 22 ISP4 Analog Input Current Sense Positive Input 4. Non−inverting input of differential current sense amplifier of phase 4. 23 ISN3 Analog Input Current Sense Negative Input 3. Inverting input of differential current sense amplifier of phase 3. 24 ISP3 Analog Input Current Sense Positive Input 3. Non−inverting input of differential current sense amplifier of phase 3. 25 PWM3 Analog Output PWM 3. PWM output of phase 3. 26 PWM2 Analog Output PWM 2. PWM output of phase 2. 27 ISN2 Analog Input Current Sense Negative Input 2. Inverting input of differential current sense amplifier of phase 2. 28 ISP2 Analog Input Current Sense Positive Input 2. Non−inverting input of differential current sense amplifier of phase 2. 29 ISN1 Analog Input Current Sense Negative Input 1. Inverting input of differential current sense amplifier of phase 1. 30 ISP1 Analog Input Current Sense Positive Input 1. Non−inverting input of differential current sense amplifier of phase 1. 31 PWM1 Analog Output PWM 1. PWM output of phase 1. 32 VSP1 Analog Input Voltage Sense Positive Input 1. Non−inverting input of differential voltage sense amplifier of channel 1. 33 VSN1 Analog Input Voltage Sense Negative Input 1. Inverting input of differential voltage sense amplifier of channel 1. 34 DIFFOUT1 Analog Output Differential Amplifier Output 1. Output pin of differential voltage sense amplifier of channel 1. 35 FB1 Analog Input Feedback 1. Inverting input of internal error amplifier for channel 1. 36 COMP1 Analog Output Compensation 1. Output pin of error amplifier of channel 1. 37 OTP1 Analog Input Over Temperature Protection 1. Voltage at this pin sets over−temperature threshold for channel 1. 38 ILIMT1 Analog Input Limit of Current 1. Voltage at this pin sets over−current threshold for channel 1. 39 VREF Analog Output Output of Reference. Output of 0.6 V reference. A 10nF ceramic capacitor bypasses this input to GND. This capacitor should be placed as close as possible to this pin. 40 VCC5V Analog Power Voltage Supply of Controller. Output of integrated 5.35V LDO and power supply input pin of control circuits. A 4.7 mF ceramic capacitor bypasses this input to GND. This capacitor should be placed as close as possible to this pin. 41 THERM /GND Analog Ground Thermal Pad and Analog Ground. Ground of internal control circuits. Must be connected to the system ground. |
Similar Part No. - NCP81232_16 |
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Similar Description - NCP81232_16 |
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