BD3951F-E2

TECHNICAL NOTE Power Management LSI Series for Automotive Body Control Regulator with Voltage Detector IC BD3951F ●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 Symbol Limit Unit Vcc -0.3～+36 V Out Terminal Voltage Vout -0.3～+7 V RES Terminal Voltage Vres -0.3～+7 V SOUT Terminal Voltage Vsout -0.3～+7 V Vcc Input Voltage RES Output Current Ires 0.2 mA SOUT Output Current Isout 2.5 mA SIN Input Voltage Vsin -0.3～+36 *3 V Power Dissipation Pd 687 *2 mV Topr -40～+125 ℃ Tstg -55～+150 ℃ Vccpeak 50 V Operating Temperature Range Storage Temperature Range Vcc Peak Input Voltage *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. Dec. 2006 ●Operating Conditions (Ta=-40℃～+125℃) Symbol Min. Typ. Max. Unit Recommended Supply Voltage *4 Parameter Vcc 6.0 13.5 20 V Operatinal Supply Voltage *5 Vcc 5.5 13.5 36 V Reset Adjustable Range Vdet 4 - 4.7 V Reset Delay Time Controllable Range Cct - - 10 µF Vcc Detection Adjustable Range Vcc 5 - - V *4 The range within test condition of the electrical characteristics. *5 The range exceeding the test condition of the electrical characteristics. ●Electrical Characteristics（Unless otherwise specified Ta=-40℃～+125℃，Vcc=13.5V） Parameter Symbol Limit Unit Condition Min. Typ. Max. Icc - 135 210 µA Iout=0.3mA Vout 4.90 5.00 5.10 V Vcc=6～20V,Iout=1～100mA [Whole Device] Input Current [Regulator Block] Output Voltage Line Regulation Lin.Reg - 10 20 mV Vcc=6～20V Load Regulation Load.Reg - 15 30 mV Iout=1～100mA Dropout Voltage ∆Vd - 0.31 0.50 V Iomax 150 - - mA Threshold Voltage Vdet Vout ×0.92 Vout ×0.94 Vout ×0.96 V 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 Reset Adjustable Voltage Vradj 1.18 1.26 1.34 V Threshold Voltage Vsdet 1.19 1.26 1.33 V Hysteresis Voltage Vsdet off 1.240 1.335 1.430 V SOUT Pull Up Resistor Rso 10 20 40 kΩ SOUT Low Output Voltage VsL - 0.06 0.40 V Vout>4V, Vsin