IPS21 Datasheet | ASIC Advantage

DESCRIPTION IN-PLUG® IPS20 & IPS21 Integrated Circuits are low-voltage current sensing feedback controllers used in Switch Mode Power Supplies to control load-side current and voltage. They have been designed to limit the power dissipated in the sensing circuitry for high output current applications that require current limiting. They also provide excellent loop stability and superb transient response. They both incorporate a 4V shunt regulator for maximum flexibility to power the chip. The IPS20 and IPS21 only differ by the characteristics of the current sensing references. The IPS20 incorporates a trimmed 50m V reference with a positive temperature coefficient which closely matches that of a PCB copper trace. This copper trace sensing method can be used inexpensively with very low associated power losses. The IPS21 incorporates a temperature pensated 100m V reference for more conventional resistors. Both controllers feature the same voltage regulator section with a trimmed temperature stable voltage reference of 1.19V. This allows the output voltage of the SMPS to be set to any value down to about 1.2V. The IPS20 and IPS21 are suitable for any SMPS and any make of SMPS controllers, including flyback, forward, PFC and DC/DC solutions. These flyback controllers work best in plement with the IN-PLUG® family of IPS1x flyback controllers, IPS10x PFC controllers and IPS20x Push Pull controllers. FEATURES - Dual precision regulators for SMPS voltage and current control - Output currents up to 50A - Output voltage down to 1.2V - 50m V or 100m V current sensing voltage - 1.20V voltage reference - Operates with grounded optocoupler - 4V shunt regulator for VCC supply APPLICATIONS - Fast chargers for power tools and applications - Battery eliminators - Industrial and bench-type power supplies - Distributed power systems other PIN CONFIGURATION: DIP-8 / SOIC-8 VCC VS VP OPTO IPS20 IPS21 GND OUT (-) IS IP ORDERING INFORMATION Part No. ROHS / Package...