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| 1/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. power management ics for automotive body control regulator with voltage detector and watchdog timer BD3010AFV-M description BD3010AFV-M is a regulator ic with integrated wdt (watch dog timer), high output voltage accuracy 2.0% and 80a (typ.) low circuit current consumption. BD3010AFV-M supports usage of low esr ceramic capacitor for output stability. also integrated is an automatic wdt on/off feature using outpu t current detection and an output clamping circuit to prevent output overshoot caused by current flow. the reset de tection voltage can be adjusted by connecting resistors on the radj terminal. BD3010AFV-M can be a stable power supply for any applications while detecting malfunction of microcontrollers. features 1) vcc max voltage ??? 50v 2) high output voltage accuracy ??? 2.0%(ta=-40 ~ 125 ) 3) low circuit current ??? 80a (typ.) 4) output circuit ???pch dmos 5) supports low esr ceramic capacitor 6) integrated over current pr otection and thermal shut down 7) integrated wdt reset circuit (adjusta ble detection voltage through radj pin) 8) integrated automatic wdt on/off function through output current detection 9) wdt can be switched on/off by using inh pin 10) integrated output voltage clamping circuit package ??? ssop-b20 applications any application using a microcontroller or a dsp such as aut omotive (body control), displa y, server, dvd, phone, etc no.10039eat09
technical note 2/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M technical note 3/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M technical note 4/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M technical note 5/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M 4 4.1 4.2 4.3 4.4 4.5 - 40 0 40 80 120 ambient temperature: ta [ technical note 6/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M ~ ~ technical note 7/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M (unit : mm) ssop-b20 0.1 11 10 20 1 0.1 0.1 6.4 0.3 4.4 0.2 6.5 0.2 0.15 0.1 0.22 0.1 0.65 1.15 0.1 0.3min. technical note 8/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M technical note 9/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M radj out r2=815k P mj mj out 100 P ? ? ? P technical note 10/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M R ?R technical note 11/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M 0v 13.5v 3v 5v 1.25v 4.0v 4.0v 0v 0v 0v 0v 4.32v 4.25v vhs 70mv ct pull up voltage 5v out voltage 0v 0ma reset on out vcc ro io inh ct clk 4.0v power on reset reset on reset on power on reset P ? ? ? ? P technical note 12/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M watch time reset time clk P P ? ? ? ? ? ? P P P P technical note 13/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M low wdt on wdt off high inh on/off current mj ct mj 300k P technical note 14/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M inh ct forced watch mode forced watch mode 5 v 4.32v 4.25v vhs 70mv 0v 1.15v 0.15v stand-by mode 3 v 0v 1.25v 0v 0v 0v out vcc ro io inh ct clk 0v 5 v vhs 70mv 0v 1.15v 0.15v 0v 3 v 0v 1.25v 0v 0v 0v out vcc ro io clk 0v 5.7v 6v 4.32v 4.25v stand-by mode watch time power on reset power on reset 6v out voltage reset time reset ?l? reset ?l? reset ?l? r ese t ? l ? forced watch mode forced watch mode reset time 5.7v watch time P technical note 15/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M 5.7v reset ?l? 6v forced watch mode 4.25v vhs 70mv reset ?l? stand-by mode reset ?l? 4.32v 4.25v vhs 70mv reset ?l? 6v forced watch mode 5.7v stand-by mode 5v 0v 1.15v 0.15v out 3v 0v 1.25v 0v 0v 0v out vcc ro io inh ct clk 0v 4.32v 5v 0v 1.15v 0.15v out voltage 3v 0v 1.25v 0v 0v 0v out vcc ro io inh clk 0v ct power on reset power on reset forced technical note 16/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M technical note 17/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M Q Q Q ambient temperature: ta [] power dissipation : pd [w] ambient temperature: ta [] power dissipation : pd [w] ambient temperature: ta [] power dissipation : pd [w] R technical note 18/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M 0.001 0.01 0.1 1 10 100 0 50 100 150 200 ?io(ma) ?esr(? 1 ( ?) technical note 19/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M R technical note 20/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M 13. applications or inspection processes wh ere the potential of the v cc pin or other pins may be reversed from their normal state may cause damage to the ic's internal circuitry or el ements. use an output pin capacitance of 1000f or lower in case vcc is shorted with the gnd pin while the external capacito r is charged. insert a diode in series with vcc to prevent reverse current flow, or insert bypass diodes between vcc and each pin. 14. positive voltage surges on vcc pin a power zener diode should be inserted between vcc and g nd for protection against volt age surges of more than 50v on the vcc pin. 15. negative voltage surges on vcc pin a schottky barrier diode should be inserted between vcc a nd gnd for protection against voltages lower than gnd on the vcc pin. 16. output protection diode loads with large inductance components may cause reverse current flow during startup or shutdown. in such cases, a protection diode should be inserted on the output to protect the ic. 17. regarding input pins of the ic this monolithic ic contains p+ isolat ion and p substrate layers between adjacent elements in order to keep them isolated. pn junctions are formed at the intersection of t hese p layers with the n layers of other elements, creating parasitic diodes and/or transistors. fo r example (refer to the figure below): technical note 21/21 www.rohm.com 2010.11- rev.a ? 2010 rohm co., ltd. all rights reserved. BD3010AFV-M (unit : mm) ssop-b20 0.1 11 10 20 1 0.1 0.1 6.4 0.3 4.4 0.2 6.5 0.2 0.15 0.1 0.22 0.1 0.65 1.15 0.1 0.3min. ? order quantity needs to be multiple of the minimum quantity. r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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