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CS5303 データシート(PDF) 6 Page - ON Semiconductor |
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CS5303 データシート(HTML) 6 Page - ON Semiconductor |
6 / 19 page CS5303 http://onsemi.com 6 ELECTRICAL CHARACTERISTICS (continued) (0°C < TA < 70°C; 0°C < TJ < 125°C; 4.7 V < VCCL < 14 V; 8 V < VCCH < 20 V; CGATE(H) = 3.3 nF, CGATE(L) = 3.3 nF, RR(OSC) = 53.6 k, CCOMP = 0.1 μF, CREF = 0.1μF, DAC Code 10000, CVCC = 1.0 μF, ILIM ≥ 1 V;unless other- wise specified) Characteristic Unit Max Typ Min Test Conditions Current Sensing and Sharing ILIM Bias Current 0 < ILIM < 1.0 V − 0.1 1.0 μA Single Phase Pulse by Pulse Current Limit: V(CSx) − V(CSREF) − 60 70 90 mV Current Share Amplifier Bandwidth Note 5 1.0 − − mHz Reference Output VREF Output Voltage 0 mA < I(VREF) < 1.0 mA 3.15 3.25 3.35 V General Electrical Specifications VCCLL1 Operating Current VFB = COMP(no switching) − 23 28 mA VCCL23 Operating Current VFB = COMP(no switching) − 8.0 11 mA VCCH12 Operating Current VFB = COMP(no switching) − 5.5 7.0 mA VCCH3 Operating Current VFB = COMP(no switching) − 2.5 3.5 mA VCCLL1 Start Threshold GATEs switching, COMP charging 4.05 4.40 4.70 V VCCLL1 Stop Threshold GATEs stop switching, COMP discharging 3.75 4.20 4.60 V VCCLL1 Hysteresis GATEs not switching, COMP not charging 100 200 300 mV VCCH12 Start Threshold GATEs switching, COMP charging 1.7 1.9 2.1 V VCCH12 Stop Threshold GATEs stop switching, COMP discharging 1.55 1.75 1.90 V VCCH12 Hysteresis GATEs not switching, COMP not charging 100 200 300 mV 5. Guaranteed by design. Not tested in production. PACKAGE PIN DESCRIPTION PACKAGE PIN # PIN SYMBOL FUNCTION 28 Lead SO Wide 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 off- set 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 amplifier inputs. Connect current sense net- work 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. 8−12 VID4−VID0 Voltage ID DAC inputs. These pins are internally pulled up to 3.3 V if left open. 13 ILIM Sets threshold for current limit. Connect to reference through a resistive divider. |
同様の部品番号 - CS5303 |
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同様の説明 - CS5303 |
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