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STCF01 Datasheet(PDF) 7 Page - STMicroelectronics |
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STCF01 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 16 page STCF01 5 Electrical Characteristics 7/16 5 Electrical Characteristics Table 4. DC Electrical Characteristics (TJ = -40°C to 85°C, VI = 3.6V, CI = 2.2µF, CO = 4.7µF, L = 10µH, RLC = 12kΩ, RHC = 4kΩ, VOVP = 8V, Typ. values @ 25°C, unless otherwise specified) Note: 1 Typical value, not production tested Symbol Parameter Test Conditions Min. Typ. Max. Unit General Section VI Max Operation Supply Voltage 5.5 V VUVLO Under Voltage lockout threshold VSEL= 0V, VSHDN = 0V, Min. duty cycle 2.3 2.45 2.6 V IQ Quiescent Current VSEL= 0V 2.3 3 mA Shutdown Mode 0.1 0.5 µA fSW Switching Frequency VSEL= 0V, VSHDN = 0V 1.2 1.5 1.8 MHz VOVP Over Voltage Threshold No Load 17 18 19 V IPKMax Maximum Inductor Current VSHDN = 0V 1.2 A Current Control VHC HC Pin Voltage VSEL= 3V, VSHDN = 0V VI-0.65 VI-0.6 VI-0.55 V VLC LC Pin Voltage VSEL= 0V, VSHDN = 0V VI-0.65 VI-0.6 VI-0.55 V ILED/IHC High Level Current Multiplier VSEL= 3V, VSHDN = 0V (25°C) 1900 2100 2300 A/A ILED/ILC Low Level Current Multiplier VSEL= 0V, VSHDN = 0V (25°C) 2200 2400 2600 A/A RONFB Resistance ON Feedback IFB = 100mA 1.2 Ω IFB(LEAK) Current Feedback Leakage VSHDN = 3V, VFB = VI 0.1 1 µA Switch Section RON Internal Switch ON-Resistance ISW = 1A Note: 1 0.3 Ω ISW(LEAK) Internal Switch Leakage Current VSHDN = 3V, VSW= 16.5V 0.1 1 µA DMAX Maximum Duty Cycle IFB = 0mA 90 % DMIN Minimum Duty Cycle IFB = 200mA; VSEL = 0V Pulse Skipping 0% Control Input Section VH(SEL) VH(SHDN) SEL and SHDN Input High Threshold VI = 2.6V 1.2 V VI = 3.6V 1.4 VI = 5.5V 1.6 VL(SEL) VL(SHDN) SEL and SHDN Input Low Threshold VI = 2.6V 0.4 V VI = 3.6V 0.5 VI = 5.5V 0.6 Thermal Shutdown TSD Thermal Shutdown 145 °C THS Thermal Shutdown Hysteresis 15 °C |
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