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BD5246G Datasheet(PDF) 9 Page - Rohm |
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BD5246G Datasheet(HTML) 9 Page - Rohm |
9 / 12 page www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. TSZ02201-0R7R0G300040-1-2 TSZ22111・15・001 9/10 19.DEC.2011 Rev.002 BD52xx series BD53xx series Datasheet Circuit Applications ● Examples of a common power supply detection reset circuit Application examples of BD52xx series (Open Drain output type) and BD53xx series (CMOS output type) are shown below. CASE1: the power supply of the microcontroller (VDD2) differs from the power supply of the reset detection (VDD1). Use the open drain output type (BD52xx) attached a load resistance (RL) between the output and VDD2. (As shown Fig.15) CASE2: the power supply of the microcontroller (VDD1) is same as the power supply of the reset detection (VDD1). Use CMOS output type (BD53xx) or open drain output type (BD52xx) attached a load resistance (RL) between the output and VDD1. (As shown Fig.16) When a capacitance CL for noise filtering is connected to the VOUT pin (the reset signal input terminal of the microcontroller), please take into account the waveform of the rise and fall of the output voltage (VOUT). VDD1 BD52xx VDD2 GND CL ( Noise-filtering Capacitor) CT RL RST Micro controller Fig.18 Open Drain Output Type CL ( Noise-filtering Capacitor) VDD1 BD53xx CT GND RST Micro controller Fig.19 CMOS Output Type |
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