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BH2227FV Datasheet(PDF) 7 Page - Rohm |
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BH2227FV Datasheet(HTML) 7 Page - Rohm |
7 / 9 page BH2227FV, BH2228FV Technical Note 7/8 www.rohm.com 2009.06 - Rev.A © 2009 RzOHM Co., Ltd. All rights reserved. ● Operation Notes (1) Absolute maximum ratings Operating or testing the device over the maximum specifications may damage the part itself as well as peripheral components. Therefore, please ensure that the specifications are not exceeded. (2) GND potential Ensure that the GND terminal is at the lowest potential under all operating conditions. (3) Thermal design Use a thermal design that allows for a sufficient margin regarding power dissipation (Pd) under actual operating conditions. (4) Terminal shorts and mis-mounting Incorrect orientation or misalignment of the IC when mounting to the PCB may damage part. Short-circuits caused by The introduction of foreign matter between the output terminals or across the output and power supply or GND may also result in destruction. (5) Operation in a strong magnetic field Operation in a strong electromagnetic field may cause malfunction. (6) Set the power source voltage so that VDD ≧ VFS. (7) Reset function The power on reset circuit, which initializes internal settings, may malfunction during abrupt power ons. Therefore, set the time constant so as to satisfy the power source rise time. ● Thermal Derating Curve ・ SSOP-B14 Board size : 70 x 70 x 1.6mm Material : FR4 glass epoxy board (copper foil area less than 3%) Fig.18 0 100 200 300 400 500 0 25 50 75 100 125 Ta [℃] |
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