BD8160AEFV Datasheet | ROHM

Description The BD8160AEFV is a system power supply for the TFT-LCD panels used for liquid crystal TVs. Incorporates two high-power FETs with low on resistance for large currents that employ high-power packages, thus driving large current loads while suppressing the generation of heat. A charge pump controller is incorporated as well, thus greatly reducing the number of application ponents. - Features 1) Step-up and step-down DC/DC converter 2) Incorporates 2.6 A N-channel FET. 3) Incorporates positive/negative charge pumps. 4) Input voltage limit: 8 V to 18 V 5) Feedback voltage: 1.162 V ± 1% 6) Switching frequency: 500 k Hz / 750k Hz 7) Protection circuit: Under voltage lockout protection circuit Thermal shutdown circuit Overcurrent protection circuit Short Circuit Protection Overvoltage protection circuit for VS voltage (Boost DC/DC output) 8) HTSSOP-B28 Package - Applications Power supply for the TFT-LCD panels used for LCD TVs - Absolute maximum ratings (Ta = 25°C) Parameter Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range Junction Temperature SW Voltage SWB Voltage EN1,EN2 Voltage Symbol SUP,VIN Pd Topr Tstg Tjmax VSW VSWB VEN1,VEN2 Rating 20 4700- -40～+85 -55～+150 150 21 19 19 Unit V m W ℃ ℃ ℃ V V V - Derating in done 37.6m W/℃ for operating above Ta≧25℃(On 4-layer 70.0mm×70.0mm×1.6mm board) - Remendable Operation Range (Ta=25℃) Parameter Supply Voltage VS Voltage Switch current for SW Switch current for SWB EN1,EN2,FREQ Voltage - - Pd, ASO should not be exceeded Symbol SUP,VIN VS ISW ISWB VEN1,VEN2,VFREQ Limits Min 8 VIN+2 － － － Typ 12 15 － － － Max 18 18 2.6- - 2.0- - 18 Unit V V A A V .rohm. © 2009 ROHM Co., Ltd. All rights reserved. 1/18 - Rev.B - Electrical characteristics (unless otherwise specified VIN=12V and Ta=25°C) 1. DC/DC converter controller block Parameter Soft start - SS SS source current Error amplifier block - FB and FBB FB and FBB input bias current Feedback voltage for boost...