Datasheet Voltage Tracker BD3925FP-C BD3925HFP-C General Description Key Specifications BD3925FP-C and BD3925HFP-C are voltage trackers Input Supply Voltage Range: 4.5V to 36V for automotive use which have high withstand-voltage of Ultra-Low Quiescent Current: 45A (Typ) up to 50V. They offer an output current loading of up to Operating Temperature Range: -40C to +125C 500mA while limiting the quiescent current to 45A (Typ). BD3925FP-C and BD3925HFP-C are suited for systems that are permanently connected to the car battery and require low-current-consumption. The offset is 10mV (for 5V output, 6V < V < 36V, 5mA < l < CC OUT 200mA). They integrate foldedtype over-current Packages W(Typ) x D(Typ) x H(Max) protection to minimize heat dissipation when accidentally shorted, thus offering the most robust power-supply design under harsh automotive environment. Features Low-Saturation Voltage Type P-Channel DMOS Output Transistors Low Offset Voltage: 10mV(for 5V Output, 6V< V <36V, 5mA<l <200mA) CC OUT VCC Power Supply Voltage = 50 V Integrated Over-Current Protection Circuit and TO252-5 HRP5 Thermal Shutdown Circuit 6.50mm x 9.50mm x 2.50mm 9.395mm x 10.540mm x 2.005mm Applications Onboard vehicle devices (body-control, car stereos, satellite navigation systems, etc.) Ordering Information B D 3 9 2 5 x x x - C x x Part Number Package Packaging and forming specification HFP :HRP5 TR: Embossed tape and reel FP :TO252-5 (HRP5) E2: Embossed tape and reel (TO252-5) Lineup Package Orderable Part Number TO252-5 Reel of 2000 BD3925FP-CE2 HRP5 Reel of 2000 BD3925HFP-CTR Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0G1G0AN00430-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/15 TSZ2211114001 20.Oct.2014 Rev.001 BD3925FP-C BD3925HFP-C Block Diagrams FIN FIN Fin Fin OCP TSD OCP TSD START UP START UP VVCCcc SW N.C. ADJ OUTVo VVCCcc SW GND ADJ OUTVo Figure 2. (HFP) Figure 1. (FP) Pin Configurations TO252-5 HRP5 (TOP VIEW) (TOP VIEW) 3 1 2 3 4 5 1 2 4 5 Pin Descriptions TO252-5 HRP5 Pin No. Pin Name Function Pin No. Pin Name Function 1 VCC Power supply pin 1 VCC Power supply pin 2 SW OUT ON/OFF function pin 2 SW OUT ON/OFF function pin 3 N.C. No connection 3 GND Ground 4 ADJ Input voltage 4 ADJ Input voltage 5 OUT Output voltage 5 OUT Output voltage FIN GND Ground FIN GND Ground www.rohm.com TSZ02201-0G1G0AN00430-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/15 TSZ2211115001 20.Oct.2014 Rev.001