ROHM BD6046GUL handbook
Contents
1. Timing Generator Initial Delay PIN number PIN name Fig 1 Block Diagram Pin number Pin name A3 A4 B3 B4 C4 D3 D4 IN A1 B1 C1 D1 OUT D2 GND A2 FLGB www rohm com 2009 ROHM Co Ltd All rights reserved 2 7 2009 05 Rev A BD6046GUL Technical Note Package Dimensions PIN MARK t oe 3 r Fig 2 Package Dimensions VCSP50L2 Ball Configuration Top View Bottom View A OUT FLGB IN IN D OUT GND IN IN B OUT index IN IN C OUT IN C OUT IN B OUT index IN IN D OUT GND IN IN A OUT FLGB IN IN 1 2 3 4 1 2 3 4 Fig 3 Ball Configuration PIN DESCRIPTIONS PIN NAME FUNCTION Input voltage Pin A 1 F low ESR capacitor ASAA B3 B4 C4 D3 D4 IN or larger must be connected between this pin and GND A1 B1 C1 D1 OUT Output Voltage Pin Open drain output pin that turns low when any protection event occurs A2 FLGB overvoltage protection thermal shut down D2 GND Ground Pin ii O gor 3 7 2009 05 Rev A 2009 ROHM Co Ltd All rights reserved BD6046GUL Technical Note Typical Application Circuit 28V OVP 1 0uF Travel Adapter T J Li ion Fig 4 Application Circuit Safe2. www rohm com 2009 ROHM Co Ltd All rights reserved ROO39A
3. Products safety measures to guard against the possibility of physical injury fire or any other damage caused in the event of the failure of any Product such as derating redundancy fire 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 aerospace 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 specified 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 Thank you for your accessing to ROHM product informations More detail product informations and catalogs are available please contact us ROHM ROHM Customer Support System SEMICONDUCTOR http www rohm com contact
4. connector There is a risk of damaging the LSI by reverse connection of the power supply connector For protection from reverse connection take measures such as externally placing a diode between the power supply and the power supply pin of the LSI 4 Power supply lines In the design of the board pattern make power supply and GND line wiring low impedance When doing so although the digital power supply and analog power supply are the same potential separate the digital power supply pattern and analog power supply pattern to deter digital noise from entering the analog power supply due to the common impedance of the wiring patterns Similarly take pattern design into account for GND lines as well Furthermore for all power supply pins of the LSI in conjunction with inserting capacitors between power supply and GND pins when using electrolytic capacitors determine constants upon adequately confirming that capacitance loss occurring at low temperatures is not a problem for various characteristics of the capacitors used 5 GND voltage Make the potential of a GND pin such that it will be the lowest potential even if operating below that In addition confirm that there are no pins for which the potential becomes less than a GND by actually including transition phenomena 6 Shorts between pins and misinstallation When installing in the set board pay adequate attention to orientation and placement discrepancies of the LSI If it is installed err
5. ROHM SEMICONDUCTOR Charge Protection IC Series with Built in FET Negative Voltage Protection type BD6046GUL Descriptions BD6046GUL protects the devices from the abnormal input voltage at the USB port ROHM Electronic Components Technical Note No 09031EAT02 Addition to the conventinal charge protection IC it prevents the negative voltage happened by the USB reverse insertion without any additional compornents ROHM s original charge protection IC series enables to protect the abnormal input voltage from 30V to 30V Features Over Current Protect Thermal Shut Down OONDOAARWDNDM eR NN NN Applications Overvoltage Protection up to 28V Negative Voltage Protection Internal Low Ron 250mQ FET Over voltage Lockout OVLO Under voltage Lockout UVLO Internal 2 5msec Startup Delay Small package VCSP50L2 2 5mm x 2 5mm height 0 55mm Mobile phones MP3 players Digital Still Camera PDA IC recorder Electronic Dictionary Handheld Game Game Controller Camcorder Bluetooth Headsets etc Absolute maximum ratings Ta 25 C Parameter Symbol Rating Unit Conditions Input supply voltage 1 Vmax1 30 30 V IN Input supply voltage 2 Vmax2 0 3 7 V other Power dissipation Pd 975 mW Operating temperature range Topr 40 85 C Storage temperature range Tstr 55 150 C X When using more than at Ta 25 C it is reduced 7 8mW per 1 C ROHM specifica
6. d All rights reserved BD6046GUL Technical Note Ordering part number Part No Part No Package Packaging and forming specification BD6046 GUL VCSPSOL2 E2 Embossed tape and reel VCSP50L2 BD6046GUL lt Tape and Reel information gt _13 00 25 0 05 Tape Embossed carrier tape 0 05 JAB 5 Quantity 3000pcs 00 15 INDEX POST O Direction E2 ees of feed The direction is the 1pin of product is at the upper left when you hold 1PIN MARK reel on the left hand and you pull out the tape on the right hand 2 50 0 05 wo u S _ 2 50 0 05 a E a 0 0 O O le 0 1 0 05 0 55MAX au ot pin Unit mm Order quantity needs to be multiple of the minimum quantity www rohm com TIT 2009 05 Rev A 2009 ROHM Co Ltd All rights reserved Notice Notes No copying or reproduction of this document in part or in whole is permitted without the consent of ROHM Co Ltd The content specified herein is subject to change for improvement without notice The content specified 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 specifications which can be obtaine
7. d 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 specified 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 specified 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 specified in this document are intended to be used with general use electronic equipment or devices such as audio visual equipment office automation equipment commu nication devices electronic appliances and amusement devices The Products specified 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
8. er supply voltage as well as within the guaranteed values of electrical characteristics 10 Ground wiring pattern When there is a small signal GND and a large current GND it is recommended that you separate the large current GND pattern and small signal GND pattern and provide single point grounding at the reference point of the set so that voltage variation due to resistance components of the pattern wiring and large currents do not cause the small signal GND voltage to change Take care that the GND wiring pattern of externally attached components also does not change 11 Externally attached capacitors When using ceramic capacitors for externally attached capacitors determine constants upon taking into account a lowering of the rated capacitance due to DC bias and capacitance change due to factors such as temperature 12 Thermal shutdown circuit TSD When the junction temperature reaches the defined value the thermal shutdown circuit operates and turns a switch OFF The thermal shutdown circuit which is aimed at isolating the LSI from thermal runaway as much as possible is not aimed at the protection or guarantee of the LSI Therefore do not continuously use the LSI with this circuit operating or use the LSI assuming its operation 13 Thermal design Perform thermal design in which there are adequate margins by taking into account the permissible dissipation Pd in actual states of use ee 6 7 2009 05 Rev A 2009 ROHM Co Lt
9. oneously there is a risk of LSI damage There also is a risk of damage if it is shorted by a foreign substance getting between pins or between a pin and a power supply or GND 7 Operation in strong magnetic fields Be careful when using the LSI in a strong magnetic field since it may malfunction 8 nspection in set board When inspecting the LSI in the set board since there is a risk of stress to the LSI when capacitors are connected to low impedance LSI pins be sure to discharge for each process Moreover when getting it on and off of a jig in the inspection process always connect it after turning off the power supply perform the inspection and remove it after turning off the power supply Furthermore as countermeasures against static electricity use grounding in the assembly process and take appropriate care in transport and storage 9 Input pins Parasitic elements inevitably are formed on an LSI structure due to potential relationships Because parasitic elements operate they give rise to interference with circuit operation and may be the cause of malfunctions as well as damage Accordingly take care not to apply a lower voltage than GND to an input pin or use the LSI in other ways such that parasitic elements operate Moreover do not apply a voltage to an input pin when the power supply voltage is not being applied to the LSI Furthermore when the power supply voltage is being applied make each input pin a voltage less than the pow
10. tion board 50mmx 58mm mounting Recommended operating range Ta 40 85 C Parameter Symbol Range Unit Usage Input voltage range Vin 2 2 28 V X This product is not especially designed to be protected from radioactivity www rohm com 2009 ROHM Co Ltd All rights reserved 1 7 2009 05 Rev A Directive Compliance BD6046GUL Electrical Characteristics Unless otherwise noted Ta 25 C IN 5V Technical Note Rating 7 Parameter Symbol Unit Conditions Min Typ Max OE lectrical Input Voltage Range VIN 28 V Supply Quiescent Current ICC 35 70 uA Under Voltage Lockout UVLO 3 42 3 6 3 78 V IN decreasing Under Voltage Lockout Hysteresis UVLOh 50 100 150 mV IN increasing Over Voltage Lockout OVLO 6 5 6 7 6 9 V IN increasing Over Voltage Lockout Hysteresis OVLOh 50 100 150 mV IN decreasing Current limit ILM 1 2 A Vin vs Vout Res RON 250 300 mQ FLGB Output Low Voltage FLGBVO 400 mV SINK 1mA FLGB Leakage Current FLGBleak 1 yA OTimings Flgb pull up resistance 100kQ Start Up Delay Ton 2 5 5 msec Output Turn Off Time Toff 2 10 usec Alert Delay Tovp 1 5 10 usec This product is not especially designed to be protected from radioactivity Block Diagram Travel Adapter OUT OUT CHARGER Initial Delay
11. ty is high because it detects and it protects it for an abnormal voltage up to 28V It contributes to the miniaturization because all external is built into www rohm com AIT 2009 05 Rev A 2009 ROHM Co Ltd All rights reserved BD6046GUL Timing Diagram OVLO UVLO IN lt gt 2 5msec OUT Ton FLGB Fig 5 Start up sequence VLO IN 9 UVLO 2 0 sec OUT Toff 1 5u sec FLGB Tovp Fig 6 Shutdown by over voltage detection 15V IN 5y OUT a 2 5msec 1u sec lt gt FLGB Fig 7 www rohm com 2009 ROHM Co Ltd All rights reserved Recovery from overvoltage protection 5 7 Technical Note 2009 05 Rev A BD6046GUL Technical Note Notes foer use 1 Absolute maximum ratings If applied voltage VDD VIN operating temperature range Topr or other absolute maximum ratings are exceeded there is a risk of damage Since it is not possible to identify short open or other damage modes if special modes in which absolute maximum ratings are exceeded are assumed consider applying fuses or other physical safety measures 2 Recommended operating range This is the range within which it is possible to obtain roughly the expected characteristics For electrical characteristics it is those that are guaranteed under the conditions for each parameter Even when these are within the recommended operating range voltage and temperature characteristics are indicated 3 Reverse connection of power supply
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ROHM BD6046GUL handbook