SG1843J/12901

The SG1843J/12901 is designed as one kind of current mode PWM controller device that is specified for operation over the full military ambient temperature range of -55°C to 125°C. And this deivce has under voltage lockout, current limiting circuitry and start-up current of less than 1mA.

Features of the SG1843J/12901 are:(1)optimized for off-line control; (2)low start-up current (<1mA); (3)automatic feed forward compensation; (4)trimmed oscillator discharge current; (5)pulse-by-pulse current limiting; (6)enhanced load response characteristics; (7)under-voltage lockout with 6V hysteresis (SG1842 only); (8)double pulse suppression; (9)high-current totem-pole output; (10)internally trimmed bandgap referencE; (11)500kHz operation; (12)undervoltage lockout: SG1842 - 16 volts; (13)low shoot-through current <75mA over temperature.

The absolute maximum ratings of the SG1843J/12901 can be summarized as:(1)Supply Voltage: Self Limiting;(2)Supply Voltage (Low Impedance Source): 30 V;(3)Analog Inputs (Pins 3, 4, 5, 6, & 16): -0.3V to +6.3V;(4)Output Current (Peak): ±1 A;(5)Output Current (Continuous): 350 mA;(6)Operating Junction Temperature: 150°C;(7)Storage Temperature Range: -65°C to 150°C;(8)Lead Temperature (Soldering, 10 Seconds): 300°C. If you want to know more information about the SG1843J/12901, please download the datasheet in www.seekic.com or www.chinaicmart.com .