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MAX1996A Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX1996A Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 28 page High-Efficiency, Wide Brightness Range, CCFL Backlight Controller _______________________________________________________________________________________ 5 ELECTRICAL CHARACTERISTICS (continued) (VBATT = 12V, MINDAC = GND, VCC = VDD, VSH/SUS = 5.3V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Output Voltage, Normal Operation VSH/SUS = 5.5V, 6V < VBATT < 28V, 0 < ILOAD < 20mA 5.0 5.5 V VCC Output Voltage, Shutdown SH/SUS = GND, no load 3.5 5.5 V VCC rising (leaving lockout) 4.5 VCC UVLO Threshold VCC rising (entering lockout) 4 V VCC POR Threshold Rising edge 0.9 2.7 V REF Output Voltage, Normal Operation 4.5V < VCC < 5.5V, ILOAD = 40µA 1.96 2.04 V GH1, GH2, GL1, GL2 On-Resistance ITEST = 100mA 10 Ω Maximum Current-Limit Threshold LX1-GND, LX2-GND (Fixed) ILIM = VCC 180 220 mV VILIM = 0.5V 80 120 Maximum Current-Limit Threshold LX1-GND, LX2-GND (Adjustable) VILIM = 2.0V 360 440 mV IFB Input Voltage Range 0 1.7 V IFB Regulation Point VMINDAC = 0V, DAC code = 11111 binary 335 440 mV IFB Input Bias Current -2 +2 µA IFB Lamp-Out Threshold 120 180 mV VFB Input Voltage Range -2 +2 V VFB Input Bias Current VFB = 0V -0.5 0.5 µA VFB Regulation Point 480 540 mV VFB Zero-Voltage Crossing Threshold -20 +20 mV SHVSUS Input Low Voltage 0.8 V SHVSUS Input High Voltage 2.1 V SDA, SCL Input Low Voltage 0.8 V SDA, SCL Input High Voltage 2.1 V SDA Output Low Sink Current VCRF/SDA = 0.4V 4 mA Note 1: Specifications to -40°C are guaranteed by design based on final test characterization results. Note 2: Corresponds to 256 DPWM cycles or 32768 MODE cycles. Note 3: The MODE pin thresholds are only valid while the part is operating. When in shutdown, VREF = 0 and the part only differenti- ates between SMB mode and ADC mode. When in shutdown and with ADC mode selected, the CRF/SDA and CTL/SCL pins are at high impedance and do not cause extra supply current when their voltages are not at GND or VCC. Note 4: The amplitude is measured with the following circuit: VAMPLITUDE > 2V MODE 500pF 10k Ω |
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Similar Description - MAX1996A |
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