BD3951F-E2 Rohm Semiconductor, BD3951F-E2 Datasheet
BD3951F-E2
Specifications of BD3951F-E2
Available stocks
Related parts for BD3951F-E2
BD3951F-E2 Summary of contents
Page 1
... BD3951F ●Description BD3951F 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. ● ...
Page 2
Conditions (Ta=-40℃～+125℃) Parameter Recommended Supply Voltage *4 Operatinal Supply Voltage *5 Reset Adjustable Range Reset Delay Time Controllable Range Vcc Detection Adjustable Range *4 The range within test condition of the electrical characteristics. *5 The range exceeding the test ...
Page 3
Data（Unless otherwise specified Ta=-40℃～+125℃，Vcc=13.5V） -40℃ 25℃ 125℃ SUPPLY VOLTAGE: Vcc [V] Fig.1 Circuit Current 1 ＊ Vcc=4.75V 0.8 0.6 125℃ 0.4 25℃ -40℃ 0 ...
Page 4
Diagram, Application Circuit, Pin Description Vcc 1 PreReg 0.33μF Vref R2:36kΩ R1:10kΩ VCC RADJ 3 VCC 2 SIN GND 5 Fig.13 ・ ESR range of the output capacitor (ceramic capacitor) to 100Ω. ・ VCC must be ...
Page 5
Circuit SIN(2pin) Vcc 200k SIN(2pin) RES(6pin) OUT(8pin) 20k RES(6pin) ● How to set RESET delay time using CT terminal capacitor There are three factors to define the RESET delay time TdLH. External capacitor value Cct of the CT ...
Page 6
... Therefore physical safety guard, like fuse, is recommended to prevent unexpected extreme condition which might beyond absolute maximum ratings. 2. BD3951F can operate within the operating supply voltage range and operating temperature range. The Limits over the input voltage is not warranted, however electric characteristics curve in operating condition should be within the expected linearity. ...
Page 7
... BD3951F might be damaged from the exceed inflow current from the terminals to VCC (for instance, VCC is short to GND while the output capacitor is charging.). In those cases, VCC series diode (to prevent inflow current) or bypass diode (connected from terminals to VCC) should be used externally in an application ...
Page 8
Selecting a Model Name When Ordering Part number ROHM model name SOP8 <Dimension> 5.0±0 0.15±0.1 0.1 1.27 0.4±0.1 The contents described herein are correct as of December, 2006 The contents described herein ...
Page 9
Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...