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L6234PD 데이터시트(PDF) 4 Page - STMicroelectronics |
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L6234PD 데이터시트(HTML) 4 Page - STMicroelectronics |
4 / 10 page ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS Power Supply Voltage 52 V VIN,VEN Input Enable Voltage – 0.3 to 7 V Ipeak Pulsed Output Current (note 1) 5 A VSENSE Sensing Voltage (DC Voltage) -1 to 4 V Vb Bootstrap Peak Voltage 62 V VOD Differential Output Voltage (between any of the 3 OUT pins) 60 V fC Commutation Frequency 50 KHz VREF Reference Voltage 12 V Ptot Total Power Dissipation L6234PD Tamb = 70 °C 2.3 W Ptot Total Power Dissipation L6234 Tamb = 70 °C 1.6 (*) W Tstg, Tj Storage and Junction Temperature Range -40 to 150 °C Note 1: Pulse width limited only by junction temperature and the transient thermal impedance (*) Mounted on board with minimized copper area RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit VS Supply Voltage 7 to 42 V VOD Peak to Peak Differential Voltage (between any of the 3 OUT pins) 52 V Iout DC Output Current Power SO20 (Tamb = 25°C) 4 A DC Output Current Power DIP (Tamb = 25°C) with infinite heatsink 2.8 A VSENSE Sensing Voltage (pulsed tw < 300nsec) -4 to 4 V Sensing Voltage (DC) -1 to 1 V Tj Junction Temperature Range -40 to 125 °C PIN FUNCTIONS Powerdip PowerSO20 Name Function 1 20 10 6 5 15 OUT 1 OUT 2 OUT 3 Output of the channels 1/2/3. 2 19 9 7 4 14 IN 1 IN 2 IN 3 Logic input of channels 1/2/3. A logic HIGH level (when the corresponding EN pin is HIGH) switches ON the upper DMOS Power Transistor, while a logic LOW switches ON the corresponding low side DMOS Power. 3 18 8 8 3 13 EN 1 EN 2 EN 3 Enable of the channels 1/2/3. A logic LOW level on this pin switches off both power DMOS of the related channel. 4,7 9, 12 Vs Power Supply Voltage. 14 19 SENSE2 A resistance Rsense connected to this pin provides feedback for motor current control for the bridge 3. 17 2 SENSE1 A resistance Rsense connected to this pin provides feedback for motor current control for the bridges 1 and 2. 11 16 Vref Internal Voltage Reference. A capacitor connected from this pin to GND increases the stability of the Power DMOS drive circuit. 12 17 Vcp Bootstrap Oscillator. Oscillator output for the external charge pump. 13 18 VBOOT Overvoltage input to drive the upper DMOS 5,6 15,16 1,10 11,20 GND Common Ground Terminal. In Powerdip and SO packages these pins are used to dissipate the heat forward the PCB. L6234 4/10 |
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