PDF for PBL38085
PBL38085 is ERICSSON [Ericsson] company product |
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 PBL38085 PDF Download |
File Size : | 94.1 KB |
| Manufacturer: | ERICSSON [Ericsson] | |
| Description: |
...Description.PBL 380 85 is a monolithic integrated circuit for supplying power to an EL(electroluminicent) lamp. This is intended to replace the LCD background illuminationsystem in battery powered handheld equipment with a low power EL- lamp. Especially... ...illumination for both LCD and keyboard. Output voltage max. 190V, min. 170V at max.2mA constant current charge / discharge of the EL- lamp. Application dependentparameters such as charge / discharge current are set by an external resistor. Two controlsignals are needed one for the switcher and one for the lamp.The output voltage is set... ...by an amplitude limiter that switches the switcher off. The switching frequency is app. 50kHz. The light intensity is controlled by the dutycycle of the switcher control signal. Thelamp control signal is divided by two by the circuit. The wave form of the output AC-signalis either triangular or trapezoid depending of the capacitance of the EL-lamp, charge /... |
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| Similar items with "PBL38085" : PBL3717/2N, PBL3717/2QN, PBL3717A, PBL3726, More... | ||
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