 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
NCP81243 Datasheet(PDF) 7 Page - ON Semiconductor |
|
||||||||||||||||||||||||||||||
NCP81243 Datasheet(HTML) 7 Page - ON Semiconductor |
|
|
7 / 26 page  NCP81243 www.onsemi.com 7 NCP81243 1 2 3 4 5 6 7 8 9 10 11 12 13 39 38 37 36 35 34 33 32 31 30 29 28 27 CSP1 CSN1 TSENSE ICCMAX DRVON PWM1 PWM2 PWM3 PWM2A PWM1A ICCMAXA VBOOT/ADDR VBOOTA/ADDRA IOUT EN SDIO ALERT# SCLK VRDY VCC ROSC VRMP PH/FDm/FDa/SR TSENSEA VRHOT IOUTA Figure 6. Table 1. QFN52 PIN LIST DESCRIPTION Pin No. Symbol Description 1 IOUT Total output current for Main Rail. 2 EN Logic input. Logic high enables both rail output and logic low disables both rail output. 3 SDIO Serial VID data interface 4 ALERT# Serial VID ALERT#. 5 SCLK Serial VID clock 6 VRDY Open drain output. High output on this pin indicates that the Main Rail output is regulating. 7 VCC Power for the internal control circuits. A decoupling capacitor is connected from this pin to ground. 8 ROSC A resistor to ground on this pin will set the oscillator frequency 9 VRMP Feed−forward input of Vin for the ramp slope compensation. The current fed into this pin is used to control of the ramp of PWM slope 10 PH/FDm/FDa/SR A resistor to ground on startup is used to set the phase configuration per rail of the NCP81243 as well as the Fast slew rate 11 TSenseA Temp Sense input for Auxiliary rail 12 VR_HOT Open drain output. Signals an over temperature event has occurred 13 IOUTA Total output current for the Auxiliary rail. 14 VSNA Differential Output Voltage Sense Negative for auxiliary rail 15 VSPA Differential Output Voltage Sense Positive for auxiliary rail 16 DIFFA Output of the auxiliary rail differential remote sense amplifier. 17 FBA Error amplifier voltage feedback for auxiliary rail output 18 COMPA Output of the error amplifier and the inverting inputs of the PWM comparators for the auxiliary rail output. 19 CSCOMPA Output of total current sense amplifier for auxiliary rail output. 20 ILIMA Over current shutdown threshold setting for auxiliary rail l output. Resistor to CSCOMP to set threshold. 21 CSSUMA Inverting input of total current sense amplifier for auxiliary rail output. 22 CSREFA Total output current sense amplifier reference voltage input for auxiliary rail 23 CSP2A Non−inverting input to current balance sense amplifier for phase 2 A 24 CSN2A Inverting input to current balance sense amplifier for phase 2 A 25 CSP1A Non−inverting input to current balance sense amplifier for phase 1 A 26 CSN1A Inverting input to current balance sense amplifier for phase 1 A |
Similar Part No. - NCP81243_17 |
|
Similar Description - NCP81243_17 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
allmanual.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
