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ML4830 Datasheet(PDF) 4 Page - Micro Linear Corporation |
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ML4830 Datasheet(HTML) 4 Page - Micro Linear Corporation |
4 / 15 page ![]() ML4830 4 ELECTRICAL CHARACTERISTICS (Continued) PARAMETER CONDITIONS MIN TYP MAX UNITS Oscillator Initial accuracy TA = 25°C, PWM or Dimming Lockout 72 80 88 KHz Voltage stability VCCZ – 3V < VCC <VCCZ – 0.5V 1 % Temperature stability 2% Total Variation Line, temperature 68 92 KHz Ramp Valley to Peak 2.5 V C(T) Charging Current (FM Modes) VPIN8 = 0V, VPIN9 = 2.5V, VPIN12 = 0.9V, Preheat –94 µA VPIN8 = 0V, VPIN9 = 2.5V, Max. dimming –188 µA C(T) Discharge Current VPIN8 = 0V, VPIN9 = 2.5V 5 mA Output Drive Deadtime 0.2 µs R(SET) Voltage 2.5 V Reference Section Output Voltage TA = 25°C, IO = 1mA 7.4 7.5 7.6 V Line regulation VCCZ – 3V < VCC , VCCZ – 0.5V 2 10 mV Load regulation 1mA < IO < 20mA 2 15 mV Temperature stability 0.4 % Total Variation Line, load, temp 7.35 7.65 V Output Noise Voltage 10Hz to 10KHz 50 µV Long Term Stability TJ = 125°C, 1000 hrs 5 mV Short Circuit Current VCC < VCCZ – 0.5V, VREF = 0V –40 mA Preheat and Interrupt Timer (Pin 10) (R(X) = 590Ký, C(X) = 5.6µF) Initial Preheat Period 0.8 s Subsequent Preheat Period 0.7 s Start Period 2.1 s Interrupt Period 6.3 s Pin 12 Charging Current –23 µA Pin 12 Open Circuit Voltage VCC = 12.3V in UVLO 0.4 0.9 1.1 V Pin 12 Maximum Voltage 7.0 7.3 7.7 V Input Bias Current VPIN12 = 1.2V –0.1 µA Preheat Lower Threshold 1.18 V Preheat Upper Threshold 3.36 V Interrupt Recovery Threshold 1.18 V Start Period End Threshold 6.6 V |
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