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ROHM BD6046GUL Data Sheet

Summary

Ensure peak device safety with this advanced Charge Protection IC. Expertly designed to shield electronics from abnormal input voltage, including damaging negative spikes and overvoltage events (-30V to +30V), making it essential for modern portable equipment. The comprehensive manual details robust features like Overcurrent Protection, UVLO/OVLO circuits, and an internal Low RON FET, contributing to superior size reduction. Ideal for manufacturers of mobile phones, digital cameras, MP3 players, and various handheld electronic devices that require reliable power stability.

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Charge Protection IC Series with Built-in FET

Negative Voltage Protection type

No.09031EAT02

BD6046GUL

●Descriptions

BD6046GUL protects the devices from the abnormal input voltage at the USB port. 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

1) Overvoltage Protection up to 28V 2) Negative Voltage Protection 3) Internal Low Ron (250mΩ) FET 4) Over voltage Lockout (OVLO) 5) Under voltage Lockout(UVLO) 6) Internal 2.5msec Startup Delay 7) Over Current Protect 8) Thermal Shut Down 9) Small package: VCSP50L2(2.5mm x 2.5mm, height=0.55mm)

●Applications

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℃)

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 m W Operating temperature range Topr -40~+85 ℃ Storage temperature range Tstr -55~+150 ℃ ※ When using more than at Ta=25℃, it is reduced 7.8m W per 1℃.(ROHM specification board 50mm× 58mm mounting.)

●Recommended operating range (Ta=-40~+85℃)

Parameter Symbol Range Unit Usage

Input voltage range Vin 2.2~28 V ※ This product is not especially designed to be protected from radioactivity.

www.rohm.com 2009.05 - Rev.A

© 2009 ROHM Co., Ltd. All rights reserved.

Page Summary Contents For ROHM BD6046GUL Data Sheet

Page 1 Charge Protection IC Series with Built-in FET Negative Voltage Protection type No.09031EAT02 BD6046GUL ●Descriptions BD6046GUL protects the devices from the abnormal input voltage at the USB port. Add...
Page 2 BD6046GUL Technical Note ●Electrical Characteristics (Unless otherwise noted, Ta = 25C, IN=5V) Rating Parameter Symbol Unit Conditions Min. Typ. Max. ○Electrical Input Voltage Range VIN - - 28 V Supp...
Page 3 BD6046GUL Technical Note ● Package Dimensions BD6046 Lot No. Fig. 2 Package Dimensions (VCSP50L2) ●Ball Configuration Top View Bottom View OUT FLGB IN A IN OUT GND IN IN OUT index IN IN OUT IN OUT IN ...
Page 4 BD6046GUL Technical Note ●Typical Application Circuit FLGB IN 28V-OVP Cin 1.0u F Travel Adapter PMIC CHGIN 4.7u F Charger Li-ion 1cell Fig. 4 Application Circuit ・Safety is high because it detects, an...
Page 5 BD6046GUL Technical Note ●Timing Diagram 2.5msec (Ton) Fig. 5 Start up sequence 2.0μ sec OUT (Toff) 1.5μ sec FLGB (Tovp) Fig. 6 Shutdown by over voltage detection 2.5msec 1μ sec Fig. 7 Recovery from o...
Page 6 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...
Page 7 BD6046GUL Technical Note ●Ordering part number Part No. Part No. Package Packaging and forming specification BD6046 GUL : VCSP50L2 2. ±0 .0 E2: Embossed tape and reel VCSP50L2(BD6046GUL) <Tape and ...
Page 8 Notice 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 not...

Manual Details

Brand ROHM
Pages 8
File Size 276.76 KB
Published June 02, 2026
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Frequently Asked Questions

What types of voltage abnormalities does this IC protect against?

It provides protection from abnormal input voltages ranging from -30V to +30V, including Overvoltage, Undervoltage, and negative voltage from reverse USB insertion.

Are external components needed for basic operation?

Yes, a low ESR capacitor must be connected between the output pins (A1, B1, C1, D1) and Ground to ensure proper function.

What are the operating constraints regarding critical voltage levels?

The IC includes Under Voltage Lockout (UVLO) around 3.42V to 3.78V, and Over Voltage Lockout (OVLO) ranging from 6.5V to 6.9V.

Is this product suitable for life-critical or medical applications?

No; the IC is not designed for equipment requiring an extremely high level of reliability, such as medical instruments or aerospace machinery.