PT6989
PT6989 is Buck LED Driver manufactured by PTC.
DESCRIPTION
The PT6989 is a high precision buck LED Driver IC intended for PWM dimming products. The IC has a wide range input range which is 85V~265V and the default dimming state is three Level.
The PT6989integrateshigh precision current detection and constant current circuit which can realize high precision LED constant current and excellent line voltage regulation. The PT6989 works in CRM mode, the LED current is constant with inductance and LED output voltage change, good load regulation.
The PT6989 integrates a 500V power MOSFET, uses the source driver architecture, with a low operating current, so the PT6989 doesn’t need the auxiliary winding for sensing the output current and...
