BD3951F-E2 ROHM

Power Management IC Series for Automotive Body Control Regulator with Voltage Detector IC No.09039EAT05 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 Input Voltage 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 RES Output Current Ires 0.2 mA SOUT Output Current Isout 2.5 mA *3 SIN Input Voltage Vsin -0.3+36 V *2 Power Dissipation Pd 687 mV Operating Temperature Range Topr -40+125 Storage Temperature Range Tstg -55+150 *1 Vcc Peak Input Voltage Vccpeak 50 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 70mm70mm1.6mm 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) Limit Parameter Symbol Unit Min. Typ. Max. *4 Recommended Supply Voltage Vcc 6.0 13.5 20 V *5 Operatinal Supply Voltage Vcc 5.5 13.5 36 V Reset Adjustable Range Vdet 4 - 4.7 V Reset Delay Time Controllable Range Cct - - 10 F 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. www.rohm.com 2009.07 - Rev.A 1/9 2009 ROHM Co., Ltd. All rights reserved. Not Recommended for New DesignsTechnical Note BD3951F Electrical CharacteristicsUnless otherwise specified Ta=-40+125Vcc=13.5V Limit Parameter Symbol Unit Condition Min. Typ. Max. Whole Device Input Current Icc - 135 210 A Iout=0.3mA Regulator Block Output Voltage Vout 4.90 5.00 5.10 V Vcc=6 20V,Iout=1100mA Line Regulation Lin.Reg - 10 20 mV Vcc=620V Load Regulation Load.Reg - 15 30 mV Iout=1 100mA Dropout Voltage Vd - 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 *6 Reset Delay Time L->H TdLH 17 30 - mS CT=0.1F Reset Delay Time H->H TdHL - 4 - S CT=0.1F RES Pull Up Resistor Rrst 10 20 40 k RES Low Output Voltage VrL - 0.08 0.40 V 4V<Vout<Vdet, Input Current is 0.2mA Reset Adjustable Voltage Vradj 1.18 1.26 1.34 V Vcc Detection Block 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 k Vout>4V, Vsin<Vsdet SOUT Low Output Voltage VsL - 0.06 0.40 V Input Current is 1.5mA SIN Input Current Isin -1 0 1 A Vsin=2V *6 TdLH set by Cct terminal capacitor. TdLH 300kCct www.rohm.com 2009.07 - Rev.A 2/9 2009 ROHM Co., Ltd. All rights reserved. Not Recommended for New Designs