FC1350 FS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 3

Technical content

Features

  • Built in thermal and over current shut down.
  • Internal 32V Power MOS switch
  • 350mA output current
  • Single pin on/off and dimmi ng control using DC volta ge or PWM at ADJ pin.
  • Internal PWM /f_ilter
  • Soft-start
  • High effici ency (up to 90%)
  • Wide input voltage range: 7V to 32V
  • 40V transient capability
  • O utput shutdown
  • Up to 1MHz switching frequency
  • Inherent open-circuit LED protection
  • Typical 5% output current accuracy

Applications

  • MR16 and general lighting
  • Automotive lighting
  • Low voltage industrial lighting
  • LED back lighting
  • Illuminated signs the 'ADJ' pin, it can adjust the output current to above or below the set value. T he ADJ pin will accept eit her a DC voltage or a PWM waveform to provide a continuous or a gated output curren The chip c ontains a PWM /f_ilter which provi des a soft-start f eature by control ling t he rise of in put/output current. It can raise the soft-start by u sing an exter nal capacitor from the ADJ pin to grou nd. Applying a voltage of 0.2V or lower to the ADJ pin turns the out put off and switches the device into a low cu rrent stan dby state. 2008. 9. 29 1/3 SEMICONDUCTOR TECHNICAL DATA FC1350 Revision No : 0 FC1350

Electrical Characteristics (test condition: Vin = 12V DC, Ta = 25C) t i n U x a M p y T n i M s n o i t i d n o C r e t e m a r a P l obm y S Vin V 2 3 7 e g a t l o v t u p n I Vsu Internal regulator start-up threshold Vin risi ng 4.8 V IINQo Quiescent supply current with output o ADJ pin grounded 20 uA IINQon Quiescent supply current with output switching ADJ pin oating f=250kHz 500 uA VSENSE Mean current sense threshold voltage (de nes LED cu rrent setting accuracy) Measured on ISENSE pin with respect to VIN VADJ =1.25V 100 mV VSENSEHYS S ense threshold hysteresis +/- 15% VREF Internal reference voltage Measured on ADJ pin with pin oati ng 1.25 V VADJ External control voltage range on ADJ pin for dc brightness control (†) 0.3 2.5 V TOP Operating temperature. For f unction only. No g uarantee for parametric. Vin = 12V -20 85 Deg C 2008. 9. 29 2/3 SEMICONDUCTOR TECHNICAL DATA FC1350 Revision No : 0

  1. 9. 29 3/3 SEMICONDUCTOR TECHNICAL DATA FC1350 Revision No : 0