BA4911 ROHM

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Dimension (Unit : mm) 03W202A BA4911 System regulator for car stereo SIP-M12 1.2 21.6 ± 0.5 7.0 ± 0.1 1.2 6.5 ± 0.5 6.9 ± 0.1 2.54 0.6 29.8 ± 0.2 24.0 ± 0.1 13.9 ± 0.3 0.4 ± 0.1 4.7 ± 0.2 R1.8 Absolute Maximum Ratings (Ta=25˚C) Power supply voltage Power dissipation Operating temperature range Storage temperature range Peak applied voltage Parameter Symbol Limits Unit * Derating : 27.2mW/˚C for operation above Ta=25˚C *1 tr ³ 1msec Applied time within 200msec *Electric characteristic is not guaranteed. (Especially at low input voltage) Vcc Pd Topr Tstg 3000 +85 +150 -30 -55 mW V V Recommended supply voltage 1 Recommended supply voltage 2 Recommended supply voltage 3 Vcc1 1810 14.4 V Vcc2 188.2 14.4 V Vcc3 Except VDD output, ILM output VDD output ILM output1811.4 14.4 V Recommended Operating Conditions (Ta=25˚C) Parameter Min. Max. Unit ConditionsTyp.Symbol Vcc PEAK 50 *1 BA4911 is a system regulator IC for car stereo. This IC incorporates 1 channel of 5.0V output, 2 channels of 8.12V output, 1channel of 7.9V output, 1channel of 10.3V output and 2 channels of high side switch. 1) PNP output and low drop out type 2) Built-in output current limits circuit to protect IC from destruction by short 3) Built-in over-voltage protection circuit to deliver strong design for surge input to BACK UP and Vcc 4) 12pin power package perfect for space saving design 5) Built-in thermal protection circuit to protect IC from thermal destruction 6) Strong design against instant power failure of battery because VDD can be driven by load stored in BACK UP capacitor.

*1 Design guaranteed *This product is not designed for protection against radioactive rays. *Output current capacity must be set below MINIMUM. Standby circuit current 1 IST1 - 4.80 100 5.00 150 5.20 mA V V VO1 IO=300mA, Vcc=10~18V IO2=200mA, Vcc=10~18V, -30°C~80°C VO2³7.8V IO2=200mA, Vcc-VO2 IO3=200mA VO3³13.7V Output voltage (VDD) 1 Output voltage (AUDIO) 2 Vcc=13.2V Standby circuit current 2 IST2 - 100 150 mA 7.80 8.12 8.30VO2 200 0.4 0.7 - mA DVO2 IO2 Min. I/O voltage difference Output current capacity V VO5³7.5V IO5=50mA- 0.4 0.7 - mA DVO5 IO5 Min. I/O voltage difference Output current capacity V VO1³4.8V IO=300mA, VBU-VO1- 300 0.4 0.7 - mA DVO1 IO1 Min. I/O voltage difference 1 Output current capacity V IO=300mA, Vcc-VO1- 2.5 3.0DVO1'Min. I/O voltage difference 2 V V I/O voltage difference (P.COM) 3 - 0.4 0.7DVO3 300 - - mAIO3Output current capacity IO4=200mA VO4³13.7V VI/O voltage difference (P.ANT) 4 - 0.4 0.7DVO4 VO5 300 - - mAIO4Output current capacity IO5=50mA, Vcc=10~18V, -30°C~80°CVOutput voltage (AM) 5 7.5 7.9 8.3 Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=14.4V) VO6³7.8V IO6=50mA, Vcc-VO6- 0.4 0.7 - mA DVO6 IO6 Min. I/O voltage difference Output current capacity V VO6 IO6=50mA, Vcc=10~18V, -30°C~80°CVOutput voltage (FM) 6 7.8 8.12 8.3 VO7³9.9V IO7=250mA, Vcc-VO7- 250 0.4 0.7 - mA DVO7 IO7 Min. I/O voltage difference Output current capacity V VO7 IO7=250mA, Vcc=10~18VVOutput voltage (ILM) 7 9.9 10.3 10.7 Symbol Min. Max. Unit ConditionsTyp.Parameter Block Diagram Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc ILM FM AM P.ANT P.CON AUDIO VDD VBU

4 State

3 State

Pre Reg. SW1 SW2 GND Thermal shut down Over voltage protection BA4911 7 9

Appendix1-Rev1.0 The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.