SG1846J/12927

The SG1846J/12927 is designed as one kind of current mode PWM controller device that provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count.

Features of the SG1846J/12927 are:(1)Automatic feed forward compensation; (2)Programmable pulse by pulse current limiting; (3)Automatic symmetry correction in push-pull configuration; (4)Enhanced load response characteristics; (5)Parallel operation capability for modular power systems; (6)Differential current sense amplifier with wide common mode range; (7)Double pulse suppression; (8)200mA totem-pole outputs; (9)± 1% bandgap reference; (10)Under-voltage lockout; (11)Soft-start capability; (12)Shutdown capability; (13)500 KHz operation.

The absolute maximum ratings of the SG1846J/12927 can be summarized as:(1)Supply Voltage: 40 V;(2)Collector Supply Voltage: 40 V;(3)Analog Inputs (Pins 3, 4, 5, 6, & 16): -0.3V to +VIN;(4)Logic Input: -0.3V to 5.5V;(5)Soure/Sink Load current (continuous): 200 mA;(6)Source/Sink Load Current (peak, 200 ns): 500 mA;(7)Reference Load Current: 30 mA;(8)Soft Start Sink Current: 50 mA;(9)Sync Output Current: 5 mA;(10)Error Amplifier Output Current: 5 mA;(11)Operating Junction Temperature: 150°C;(12)Storage Temperature Range: -65°C to 150°C. If you want to know more information about the SG1846J/12927, please download the datasheet in www.seekic.com or www.chinaicmart.com .