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TS1937 Scheda tecnica(PDF) 3 Page - Taiwan Semiconductor Company, Ltd |
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TS1937 Scheda tecnica(HTML) 3 Page - Taiwan Semiconductor Company, Ltd |
3 / 8 page TS1937 Boost (Step-up) WLED Driver 3/8 Version: C07 Functional Block Pin Description Pin Function Description 1 SW Switching Pin. This is the collector of the internal NPN power switch. Connect to inductor and diode. Minimize the metal trace area connected to this pin to reduce EMI. 2 Ground Ground Pin. Connect directly to local ground plane. 3 Feedback Feedback Pin. Reference voltage is 95mV. Connect LEDs and a resistor at this pin. LED current is determined by the resistance and CTRL voltage. 4 CTRL Shutdown Pin and Dimming Control Pin. VCTRL > 1.8V generates full-scale LED current VCTRL < 0.4V chip is off Switching from 0.4V to 2.0V, PWM duty cycle controls the LED current 5 Input Input Supply Pin. Bypass this pin with a capacitor as close to the device as possible |
Codice articolo simile - TS1937 |
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Descrizione simile - TS1937 |
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