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CS5301 Arkusz danych(PDF) 9 Page - ON Semiconductor |
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CS5301 Arkusz danych(HTML) 9 Page - ON Semiconductor |
9 / 19 page CS5301 http://onsemi.com 9 PACKAGE PIN DESCRIPTION PACKAGE PIN # PIN SYMBOL FUNCTION 1 COMP Output of the error amplifier and input for the PWM comparators. 2 VFB Voltage Feedback Pin. To use Adaptive Voltage Positioning (AVP) select an offset voltage at light load and connect a resistor between VFB and VOUT. The input bias current of the VFB pin and the resistor value determine output voltage offset for zero output current. Short VFB to VOUT for no AVP. 3 VDRP Current sense output for AVP. The offset of this pin above the DAC voltage is proportional to the output current. Connect a resistor from this pin to VFB to set amount AVP or leave this pin open for no AVP. 4−6 CS1−CS3 Current sense inputs. Connect current sense network for the corresponding phase to each input. 7 CSREF Reference for current sense amplifiers. To balance input offset voltages between the inverting and noninverting inputs of the Current Sense Amplifiers, connect a resistor between CSREF and the output voltage. The value should be 1/3 of the value of the resistors connected to the CSx pins. 8 PWRGD Power Good Output. Open collector output goes low when CSREF is out of regulation. 9−13 VID4−VID0 Voltage ID DAC inputs. These pins are internally pulled up to 3.3 V if left open. 14 PWRGDS Power Good Sense. Connect to Output. 15 ILIM Sets threshold for current limit. Connect to reference through a resistive divider. 16 REF Reference output. Decouple with 0.1 mF to LGND. 17 LGND Return for internal control circuits and IC substrate connection. 18 VCCH3 Power for GATE(H)3. 19 Gate(H)3 High side driver #3. 20 GND3 Return for #3 drivers. 21 Gate(L)3 Low side driver #3. 22 VCCL23 Power for GATE(L)2 and GATE(L)3. 23 Gate(L)2 Low side driver #2. 24 GND2 Return for #2 driver. 25 Gate(H)2 High side driver #2. 26 VCCH12 Power for GATE(H)1 and GATE(H)2. UVLO Sense for High Side Driver supply connects to this pin. 27 Gate(H)1 High side driver #1. 28 GND1 Return #1 drivers. 29 Gate(L)1 Low side driver #1. 30 VCCL1 Power for GATE(L)1. 31 VCCL Power for internal control circuits and UVLO Sense for Logic. 32 ROSC A resistor from this pin to ground sets operating frequency and VFB bias current. |
Podobny numer części - CS5301_06 |
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Podobny opis - CS5301_06 |
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