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STM660OAQ22DM6E bảng dữ liệu(PDF) 5 Page - STMicroelectronics |
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STM660OAQ22DM6E bảng dữ liệu(HTML) 5 Page - STMicroelectronics |
5 / 51 page STM6600 - STM6601 Description Doc ID 15453 Rev 7 5/51 1 Description The STM6600-01 devices monitor the state of connected push-button(s) as well as sufficient supply voltage. An enable output controls power for the application through the MOSFET transistor, DC-DC converter, regulator, etc. If the supply voltage is above a precise voltage threshold, the enable output can be asserted by a simple press of the button. Factory- selectable supply voltage thresholds are determined by highly accurate and temperature- compensated references. An interrupt is asserted by pressing the push-button during normal operation and can be used to request a system power-down. The interrupt is also asserted if undervoltage is detected. By a long push of one button (PB) or two buttons (PB and SR) either a reset is asserted or power for the application is disabled depending on the option used. The device also offers additional features such as precise 1.5 V voltage reference with very tight accuracy of 1%, separate output indicating undervoltage detection and separate output for distinguishing between interrupt by push-button or undervoltage. The device consumes very low current of 6 µA during normal operation and only 1 µA current during standby. The STM6600-01 is available in the TDFN12 package and is offered in several options among features such as selectable threshold, hysteresis, timeouts, output types, etc. (see Table 8 and Table 9 for more information). Figure 1. Application hookup 1. A resistor is required for open drain output type only. A 10 k Ω pull-up is sufficient in most applications. 2. Capacitor CREF is mandatory on VREF output (even if VREF is not used). Capacitor value of 1 µF is recommended. 3. For the STM6601 the processor has to confirm the proper power-on during the fixed time period, tON_BLANK. This failsafe feature prevents the user from turning on the system when there is a faulty power switch or an unresponsive microprocessor. |
Số phần tương tự - STM660OAQ22DM6E |
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Mô tả tương tự - STM660OAQ22DM6E |
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