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BD4721 Datasheet(PDF) 1 Page - Rohm |
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BD4721 Datasheet(HTML) 1 Page - Rohm |
1 / 13 page ○Product structure:Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays . 1/10 Datasheet TSZ02201-0R7R0G300020-1-2 © 2012 ROHM Co., Ltd. All rights reserved. 18.Nov.2012 Rev.005 TSZ22111・14・001 www.rohm.com Voltage Detector IC Series Bipolar Voltage Detector ICs BD47xx series ●General Description The BD47xx series is a Voltage Detector IC, developed to prevent system errors at transient state, when the power of CPU or logic circuit switches ON/OFF or in cases of momentary shut down. These ICs consist of three terminals (power supply, GND and reset output) to detect power supply voltages and outputs reset signals of various systems. These ICs are ultra-compact and have low current consumption, making them ideal for portable products. ●Features High accuracy detection Low current consumption Very small package Open collector “L” reset output Package SSOP5 is similar to SOT-23-5 (JEDEC) ●Key Specifications Detection voltage range: 1.9V to 4.6V (Typ.) 0.1V steps High accuracy detection voltage: ±1% Low current consumption: 1.6µA (Typ.) Operating temperature range: -40°C to +75°C ●Package SSOP5 2.90mm x 2.80mm x 1.25mm ●Applications Circuits using microcontrollers or logic circuits that require a reset. ●Typical Application Circuit ●Connection Diagram SSOP5 TOP VIEW ●Pin Descriptions PIN No. Symbol Function 1 N.C. Unconnected Terminal 2 SUB Substrate* 3 GND GND 4 VOUT Reset Output 5 VDD Power Supply Voltage *Substrate Pin should be connected with GND GND BD47xx series RESET GND VOUT VDD VDD CPU Micro-controller CL RL N.C. SUB GND VOUT VDD Lot. No Marking |
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