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L4993D Datasheet(PDF) 8 Page - STMicroelectronics |
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L4993D Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 30 page Electrical specifications L4993 8/30 2.3 Electrical characteristics Values specified in this section are for Vs =5.6V to 31V, Tj= -40°C to +150°C unless otherwise stated. Table 5. General Pin Symbol Parameter Test condition Min. Typ. Max. Unit Vo Vo_ref Output voltage Vs = 6 to 31V Io = 1 to 150mA 4.9 5.0 5.1 V Vo Ishort Short circuit current Vs = 13.5V(1) 1. See Figure 25. 150 280 400 mA Vo Ilim (2) 2. Measured output current when the output voltage has dropped 100mV from its nominal value obtained at Vs=13.5V and Io= 75mA . Output current limitation Vs = 13.5V (1) 150 320 500 mA Vs, Vo Vline Line regulation voltage Vs = 6 to 31V Io = 1 to 150mA 25 mV Vo Vload Load regulation voltage Io = 1 to 150mA 25 mV Vs, Vo Vdp (3) 3. Vs-Vo measured when the output voltage has dropped 100mV from its nominal value obtained at Vs=13.5V and Io= 75mA . Drop voltage Io = 150mA 200 400 mV Vs, Vo SVR Ripple rejection fr = 100 Hz (4) 4. Guaranteed by design. 55 dB Vs, Vo Iqn_150 Quiescent current Vs=13.5V, Io=150mA, WEn = high 1.25 2 mA Vs, Vo Iqn_50 Quiescent current Vs=13.5V, Io= 50mA, WEn = high 470 1000 µA Vs, Vo Iqn_1 Quiescent current Vs=13.5V, Io< 1mA, WEn = high 100 180 µA Vs, Vo Iqs Quiescent current with watchdog regulator disabled Vs=13.5V, Io< 1mA, WEn = low 79 125 µA Tw Thermal protection temperature 150 190 °C Tw_hy Thermal protection temperature hysteresis 10 °C |
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