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HVLED002TR 데이터시트(PDF) 1 Page - STMicroelectronics |
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HVLED002TR 데이터시트(HTML) 1 Page - STMicroelectronics |
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1 / 19 page ![]() This is information on a product in full production. December 2015 DocID028720 Rev 1 1/19 HVLED002 High performance current mode LED controller Datasheet - production data Features Trimmed oscillator for precise frequency control Oscillator frequency guaranteed at 250 kHz Current mode operation to 500 kHz Latching PWM for cycle-by-cycle current limiting Internally trimmed reference with undervoltage lockout High current totem pole output Undervoltage lockout with hysteresis Low start-up and operating current Description The HVLED002 control IC provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes to implement LED drivers. Internally implemented circuits include a trimmed oscillator for the precise duty cycle control, undervoltage lockout, a precision reference trimmed for accuracy at the error amplifier input, a PWM comparator which also provides current limit control and a totem pole output stage designed to the source or sink high peak current. The output stage, suitable for driving N-channel MOSFETs, is low in the off- state. Figure 1. Block diagram SO-8 Table 1. Device summary Order codes Package Packaging HVLED002 SO8 Tube HVLED002TR Tape and reel www.st.com |
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