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L6728A Scheda tecnica(PDF) 7 Page - STMicroelectronics |
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L6728A Scheda tecnica(HTML) 7 Page - STMicroelectronics |
7 / 32 page L6728A Electrical specifications 7/32 3 Electrical specifications 3.1 Absolute maximum ratings Table 4. Absolute maximum ratings 3.2 Electrical characteristics Symbol Parameter Value Unit VCC to GND -0.3 to 15 V VBOOT, VUGATE to PHASE to GND to GND; t < 200 ns 15 33 45 V VPHASE to GND to GND; t < 200 ns -5 to 18 -8 to 30 V VLGATE to GND -0.3 to VCC+0.3 V FB, COMP, VSEN to GND -0.3 to 3.6 V PGOOD to GND -0.3 to VCC+0.3 V Table 5. Electrical characteristics (VCC = 5 V to 12 V; TJ = 0 °C to 70 °C unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit Supply current and power-on ICC VCC supply current UGATE and LGATE = OPEN 6 mA IBOOT BOOT supply current UGATE = OPEN; PHASE to GND 0.7 mA UVLO VCC turn-ON VCC rising 4.1 V Hysteresis 0.2 V Oscillator FSW Main oscillator accuracy 540 600 660 kHz ΔV OSC PWM ramp amplitude 1.4 V dMAX Maximum duty cycle 67 % Reference and error amplifier Output voltage accuracy -0.8 - 0.8 % A0 DC gain (1) 120 dB GBWP Gain-bandwidth product (1) 15 MHz SR Slew-rate (1) 8V/ μs DIS Disable threshold COMP falling 0.70 0.85 V |
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