MIC4826 Micrel Semiconductor, MIC4826 Datasheet
MIC4826
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MIC4826 Summary of contents
Page 1
... EL lamp circuit to be optimized for maximum efficiency and brightness. The MIC4826 uses a single inductor and a minimum number of external components, making it ideal for portable, space- sensitive applications. The MIC4826 is available in an 8-pin MSOP package with an ambient temperature range of – +85 C. Typical Application L1 V ...
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... Pin Description Pin Number Pin Name 1 VDD 2 RSW 3 REL 4 GND MIC4826 VDD RSW REL GND 8-Pin MSOP Package (MM) Pin Function Supply (Input): 1.8V to 5.5V for internal circuitry. Switch Resistor (External Component): Set switch frequency of the internal power MOSFET by connecting an external resistor to VDD ...
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... SW ) ......................... – + .............................................. 206 C Min Typ 3 150 160 146 V –0.5 DD 0.01 21 200 28 285 360 OUT 0.01 F/100V 10nF Micrel + Max Units 7 170 V 174 V 0 0 400 A mA 435 Hz 79 kHz % MIC4826 ...
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... INPUT VOLTAGE (V) Switching Frequency vs. Input Voltage 120 R = 332k 100 442k 562k INPUT VOLTAGE (V) MIC4826 Total Input Current vs. Temperature 562k 442k 3. Lamp = 2in 10 R ...
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... L = 220 0 OUT D = BAV19WS LAMP SIZE (sq. in.) 5 Micrel Total Input Current vs. Lamp Size 332k 3.32M 3. 220 BAV19WS 0.1 F OUT LAMP SIZE (sq. in.) MIC4826 ...
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... REL Functional Description See “Application Information” for component selection and pre-designed circuits. Overview The MIC4826 is a high voltage EL driver with an AC output voltage of 160V peak-to-peak capable of driving EL lamps Input supply current for the MIC4826 is typically 21 A with a typical shutdown current of 10nA. The high voltage EL driver has two internal oscillators to control the switching MOSFET and the H-bridge driver ...
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... Lamp = 2in R = 442k Figure 4. 360Hz Output Waveform Enable Function The enable function of the MIC4826 is implemented by switching the R and R SW When R and R are connected to ground, the switch and SW EL the EL oscillators are disabled; therefore the EL driver be- comes disabled. When these resistors connect to V oscillators will function and the EL driver is enabled ...
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... BAV19WS and BAV20WS. Output Capacitor Low ESR capacitors should be used at the regulated boost output (CS pin) of the MIC4826 to minimize the switching output ripple voltage. Selection of the capacitor value will depend upon the peak inductor current, inductor size, and the load. MuRata offers the GRM40 series with up to 0.015 F at 100V, with a X7R temperature coefficient in 0805 surface- mount package ...
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... LQH4C221K04 MIC4826 1 5 VDD RSW CS 3.32M 332k 3 7 REL GND – 3.3V 14mA 160V 100Hz PP TIME (2ms/div) 2 Lamp with Diodes BAV20WS C OUT 0.1 F/100V GRM42-2X7R104K100 EL LAMP LSI X533-13 F Lamp Size EL 2 2in = 0 Micrel MIC4826 ...
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... MIC4826 V IN 3. F/6.3V Murata GRM42-6X5R106K6.3 Figure 7. Typcial EL Driver for 2in MIC4826 L1 560 H Murata LQ32CN561K21 MIC4826 1 VDD RSW CS 3.32M 332k 3 REL VB 4 GND – 3.3V 13.2mA 160V 100Hz PP TIME (2ms/div) 2 Lamp with 560 H inductor 10 D1 Diodes BAV20WS ...
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... LQH4C221K04 BAV20WS C2 10 F/6.3V MIC4826 Murata GRM42-6X5R106K6 VDD RSW CS C1 442k 3 7 REL 3.32M GND VA EL LAMP 3. 160V TIME (2ms/div Diodes C OUT 0.01 F/100V GRM40X7R103K100 –V F Lamp Size 100Hz 1.6in PP Micrel MIC4826 ...
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... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC4826 0.199 (5.05) DIMENSIONS: ...