NCS1002ADR2G ON Semiconductor

NCS1002A Constant Voltage / Constant Current SecondarySide Controller Description www.onsemi.com The NCS1002A is a performance upgrade from the NCS1002 focused on reducing power consumption in applications that require MARKING more efficient operation. It is a highly integrated solution for DIAGRAMS Switching Mode Power Supply (SMPS) applications requiring a dual 8 control loop to perform Constant Voltage (CV) and Constant Current SOIC8 (CC) regulation. The NCS1002A integrates a 2.5 V voltage reference 1002A D SUFFIX 8 ALYW and two precision op amps. The voltage reference, along with Op Amp CASE 751 1 1, is the core of the voltage control-loop. Op Amp 2 is an independent, 1 uncommitted amplifier specifically designed for the current control. Key external components needed to complete the two control loops A = Assembly Location L = Wafer Lot are: (a) A resistor divider that senses the output of the power supply Y = Year (battery charger) and fixes the voltage regulation set point at the W = Work Week specified value. (b) A sense resistor that feeds the current sensing = PbFree Package circuit with a voltage proportional to the DC output current. This (Note: Microdot may be in either location) resistor determines the current regulation set point and must be adequately rated in terms of power dissipation. The NCS1002A comes PIN CONNECTIONS in a small 8pin SOIC package and is ideal for space-shrunk applications such as battery chargers. 1 8 V Out 1 CC Features 2 In 1 7 Out 2 Low Input Offset Voltage: 0.5 mV, Typ In 1+ 3 In 2 6 Input Common-Mode Range includes Ground GND 4 In 2+ 5 Low Quiescent Current: 75 A per Op Amp at V = 5 V CC Large Output Voltage Swing (Top View) Wide Power Supply Range: 3 V to 36 V High ESD Protection: 2 kV This is a PbFree Device 1 8 Output 1 V CC Typical Applications - + Battery Chargers 2 7 Output 2 Switch Mode Power Supplies Inputs 1 + - 3 6 2.5V Inputs 2 4 5 GND ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. Semiconductor Components Industries, LLC, 2014 1 Publication Order Number: January, 2019 Rev. 6 NCS1002A/DNCS1002A MAXIMUM RATINGS Parameter Symbol Rating Unit Supply Voltage (V to GND) (Operating Range V = 3 V to 36 V) V 36 V CC CC CC Differential Input Voltage V 36 V id Input Voltage V 0.3 to +36 V i ESD Protection Voltage at Pin Human Body Model V 2000 V ESD Maximum Junction Temperature T 150 C J Specification Temperature Range (T to T ) T 40 to +105 C min max A Operating FreeAir Temperature Range T 55 to +125 C oper Storage Temperature Range T 65 to +150 C stg Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. THERMAL CHARACTERISTICS Parameter Symbol Rating Unit Thermal Resistance JunctiontoAmbient R 175 C/W JA www.onsemi.com 2