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DS3882ET Datasheet(PDF) 8 Page - Maxim Integrated Products |
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DS3882ET Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 30 page Dual-Channel Automotive CCFL Controller 8 _____________________________________________________________________ Pin Description (continued) NAME PIN FUNCTION POSC 9 DPWM Oscillator Resistor Adjust. A resistor to ground on this lead sets the frequency of the DPWM oscillator. This lead can optionally accept a 22.5Hz to 440Hz clock that will become the source timing of the internal DPWM signal. A1 10 Address Select Input. Determines I2C slave address. GND_S 11 I2C Interface Ground Connection. GND_S must be at the same potential as GND. SVML 12 Low-Supply Voltage Monitor Input. Used to monitor the inverter voltage for undervoltage conditions. SVMH 13 High-Supply Voltage Monitor Input. Used to monitor the inverter voltage for overvoltage conditions. VCC 14, 24 Power-Supply Connections. Both pins must be connected. N.C. 19 No Connection. Do not connect any signal to this pin. STEP 20 Lamp Frequency Step Input. This active-high digital input moves the lamp oscillator frequency up or down by 1%, 2%, 3%, or 4% as configured in the EMIC register. This pin is logically ORed with the STEPE bit in the EMIC register. GND 21 Ground Connection LCO 22 Lamp Current Overdrive Enable Input. A high digital level at this input enables the lamp current overdrive circuit. The amount of overdrive current is configured by the LCOC register. When this input is low, the lamp current is set to its nominal level. This pin is logically ORed with the LCOE bit in the LCOC register. PDN 23 Lamp On/Off Control Input. A low digital level at this input turns the lamp on. A high digital level turns the lamps off, clears the fault logic, and places the device into the power-down mode. The high-to-low transition on this input issues a controller reset, which clears the fault logic and reinitiates a lamp strike. This pin is logically ORed with the PDNE bit in the CR2 register. |
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Similar Description - DS3882ET |
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