233D-HA6單按鍵觸摸檢測(cè) IC 特 點(diǎn)

233D-HA6 single-touch touch detection IC features

z 工作電壓 2.4V ~ 5.5V

z working voltage 2.4V ~ 5.5V

z 內(nèi)建穩(wěn)壓電路提供穩(wěn)定的電壓給觸摸檢電路使用 

z Built-in constant voltage circuit to provide a stable voltage to touch the circuit used

z 內(nèi)建低壓重置(LVR)功能 

z Built-in low voltage reset (LVR) function

z 工作電流 @VDD=3V﹐無(wú)負(fù)載
 低功耗模式下典型值 2.5uA?最da值 5uA 

Operating current @ VDD = 3V, no load

 Low-power mode, the typical value of 2.5uA, the maximum value of 5uA

z 最長(zhǎng)響應(yīng)時(shí)間大約為低功耗模式 220ms @VDD=3V 

The longest response time is approximately 220ms @ VDD = 3V for low-power mode

z 可以由外部電容 (1~50pF) 調(diào)整靈敏度 

z The sensitivity can be adjusted by an external capacitor (1 ~ 50pF)

z 穩(wěn)定的人體觸摸檢測(cè)可取代傳統(tǒng)的按鍵開(kāi)關(guān) 

z Stable body touch detection can replace the traditional key switch

z 提供低功耗模式 

z provide low-power mode

z 提供輸出模式選擇 (TOG pin) 

z provides output mode selection (TOG pin)

可選擇直接輸出或鎖存 (toggle) 輸出 

Optional output or toggle output

z 提供最長(zhǎng)輸出時(shí)間約 16 秒(±50%) 

z provides the longest output time of about 16 seconds (± 50%)

z Q pin 為 CMOS 輸出﹐可由 (AHLB pin) 選擇高電平輸出有效或低電平輸出有效 

z Q pin is CMOS output, can be selected by (AHLB pin) High output Active low output Active

z 上電后約有 0.5 秒的穩(wěn)定時(shí)間﹐此期間內(nèi)不要觸摸檢測(cè)點(diǎn)﹐此時(shí)所有功能都被禁止

z Approximately 0.5 second settling time after power-on, do not touch the test point during this period, and all functions are disabled

z 自動(dòng)校準(zhǔn)功能
 剛上電的 8 秒內(nèi)約每 1 秒刷新一次參考值﹐若在上電后的 8 秒內(nèi)有觸摸按鍵或 8 秒后仍未觸摸
 按鍵，則重新校準(zhǔn)周期切換為 4 秒

z automatic calibration function

 Just about every 8 seconds on the power to refresh the reference value, if the power button within 8 seconds or 8 seconds after touch has not touched

 Press, the recalibration cycle is switched to 4 seconds