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 (250m ) 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 -3030 V IN Input supply voltage 2 Vmax2 -0.37 V other Power dissipation Pd 975 mW Operating temperature range Topr -40+85 Storage temperature range Tstr -55+150 When using more than at Ta=25, it is reduced 7.8mW per 1.(ROHM specification board 50mm 58mm mounting.) Recommended operating range (Ta=-40+85) Parameter Symbol Range Unit Usage Input voltage range V 2.228 V in This product is not especially designed to be protected from radioactivity. www.rohm.com 2009.05 - Rev.A 1/7 2009 ROHM Co., Ltd. All rights reserved. Technical Note BD6046GUL Electrical Characteristics (Unless otherwise noted, Ta = 25C, IN=5V) Rating Parameter Symbol Unit Conditions Min. Typ. Max. Electrical Input Voltage Range VIN - - 28 V Supply Quiescent Current ICC 35 70 A 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 m FLGB Output Low Voltage FLGBVO - - 400 mV SINK=1mA FLGB Leakage Current FLGBleak - - 1 A Timings (Flgb pull up resistance 100k) Start Up Delay Ton - 2.5 5 msec Output Turn Off Time Toff - 2 10 sec Alert Delay Tovp - 1.5 10 sec * This product is not especially designed to be protected from radioactivity. Block Diagram Travel Adapter OUT OUT CHARGER IN IN IN IN IN IN IN OUT OUT NVP FLGB Initial Delay VREF UVLO Gate Driver OVLO OCP TSD Timing Generator Initial Delay OSC GND Fig. 1 Block Diagram PIN number / PIN name Pin number Pin name A3, A4,B3, B4,C4, D3,D4 IN A1, B1,C1, D1 OUT D2 GND A2 FLGB www.rohm.com 2009.05 - Rev.A 2/7 2009 ROHM Co., Ltd. All rights reserved.