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STMPE16M31 数据表(PDF) 74 Page - STMicroelectronics |
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STMPE16M31 数据表(HTML) 74 Page - STMicroelectronics |
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74 / 85 page  Application information STMPE16M31, STMPE24M31 74/85 Doc ID 16174 Rev 4 17 Application information 17.1 Average current consumption In application, it is unlikely that touch event occurs 100% of the time. Power consumption for STMPExxM31 can be reduced significantly with the proper use of the available device Sleep mode. The device can be programmed into Sleep mode upon detecting of the finger lift. During the Sleep mode, upon detecting a touch, STMPExxM31 goes from Sleep to Active mode after 15 ms. As such, for an example touch profiles in Figure 20 below, the Average current consumption over the 6 seconds is: = [(0.185+0.285+0.285) * 400 uA + ( 5.245 * 50 uA)]/6 = 94 uA. Figure 20. Average current consumption AM08687V1 0.3s 0.5s 0.8s 1.1s 2.3s 2.6s 0.0s 6.0s 50uA 400uA Obsolete Product(s) - Obsolete Product(s) |
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