Path: ...!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Don Y Newsgroups: sci.electronics.design Subject: Re: ac138 Date: Fri, 17 May 2024 10:58:28 -0700 Organization: A noiseless patient Spider Lines: 20 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Fri, 17 May 2024 19:58:37 +0200 (CEST) Injection-Info: dont-email.me; posting-host="8a8551ece1cb0c10a1b606592a2a5e58"; logging-data="2432406"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/q52jyHDZEanzS+XycKtYn" User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Cancel-Lock: sha1:hBJhf0CNHee3GB2G8pmVb+FAtGE= In-Reply-To: Content-Language: en-US Bytes: 1874 On 5/17/2024 8:15 AM, Hul Tytus wrote: > Anyone know of an ic similar to the hc/ac138/238 (16 pin, > 1 input to 8 output multiplexer) but with outputs of the > open collector/drain style that can handle 2 amps at > 12 volts? The '138 is a decoder (demultiplexer). What you are looking for is more likely considered a hammer driver. The two functions tend not to coexist; if you wanted a low-side driver that could handle 8 loads, you would likely be looking to drive any *combination* of those loads... an "octal driver". You can probably find something automotive that would give you 8 such outputs in a package (though 8@2A would likely be pushing the power dissipation of a normal package) -- but it would likely have an I2C or SPI interface, requiring you to do the "decoding"/selection elsewhere.