BD3951F

Power Management IC Series for Automotive Body Control Regulator with Voltage Detector IC BD3951F No.09039EAT05 ●Description BD3951F is a 5V LDO system regulator particularly developed for automotive applications. The output current of the regulator can be drawn up to 150mA, and it has built-in power-on reset and input voltage sense. This device can withstand 50V surge input voltage as well as wide ambient temperature operations from -40℃ to +125℃. The adjustable reset delay time and detection input voltage allow to meet with wide range of design requirements. ●Features 1) Micro processor power supply 5.0V, Adjustable Reset, Adjustable Comparator. 2) 5V is Pch DMOS type low drop out voltage regulator. Iomax=150mA. 3) Low ESR capacitor (Ceramic Capacitor) is available for the Output Capacitor. 4) Over Current Protection built in to prevent the destruction of IC. 5) Thermal Shut Down is built in to prevent the heat runaway. 6) VCC absolute Maximum Ratings 36V. 7) Vcc peak input voltage 50V (*1) 8) Small surface mount package SOP8. ●Applications Automotive application (Rain Sensor and Cluster Panel etc.) and all other electronics application. ●Absolute Maximum Ratings (Ta=25℃) Parameter Vcc Input Voltage Out Terminal Voltage RES Terminal Voltage SOUT Terminal Voltage RES Output Current SOUT Output Current SIN Input Voltage Power Dissipation Operating Temperature Range Storage Temperature Range Vcc Peak Input Voltage Symbol Vcc Vout Vres Vsout Ires Isout Vsin Pd Topr Tstg Vccpeak Limit -0.3～+36 -0.3～+7 -0.3～+7 -0.3～+7 0.2 2.5 -0.3～+36 *3 687 *2 -40～+125 -55～+150 50*1 Unit V V V V mA mA V mV ℃ ℃ V *1 tr (rising time) is over 1msec, applied voltage is less than 400msec *2 Pd is derated at 5.5mW/℃ for temperature above Ta=25℃, mounted on 70mm×70mm×1.6mm PCB. *3 Input current from Vcc to SIN PIN has to be equal and less than 5mA when Vcc voltage is less than SIN PIN voltage. ●Operating Conditions (Ta=-40℃～+125℃) Parameter Recommended Supply Voltage Operatinal Supply Voltage *5 Reset Adjustable Range Reset Delay Time Controllable Range Vcc Detection Adjustable Range *4 *5 *4 Symbol Vcc Vcc Vdet Cct Vcc Min. 6.0 5.5 4 5 Limit Typ. 13.5 13.5 - Max. 20 36 4.7 10 - Unit V V V μF V The range within test condition of the electrical characteristics. The range exceeding the test condition of the electrical characteristics. www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 1/9 2009.07 - Rev.A BD3951F Technical Note ●Electrical Characteristics（Unless otherwise specified Ta=-40℃～+125℃，Vcc=13.5V） Limit Parameter Symbol Unit Condition Min. Typ. Max. [Whole Device] Input Current Icc 135 210 μA Iout=0.3mA [Regulator Block] Output Voltage Vout 4.90 5.00 5.10 V Vcc=6～20V,Iout=1～100mA Line Regulation Lin.Reg 10 20 mV Vcc=6～20V Load Regulation Load.Reg 15 30 mV Iout=1～100mA Dropout Voltage ΔVd 0.31 0.50 V Vcc=4.75V, Io=100mA Output Peak Current Iomax 150 mA (Current Limit) [Reset Block] Vout Vout Vout Threshold Voltage Vdet V ×0.92 ×0.94 ×0.96 Hysteresis Voltage Vhys 50 100 150 mV Reset Delay Time L->H TdLH 17 30 mS CT=0.1μF *6 Reset Delay Time H->H TdHL 4 μS CT=0.1μF RES Pull Up Resistor Rrst 10 20 40 kΩ RES Low Output Voltage VrL 0.08 0.40 V 4V