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AS3722 数据表(PDF) 72 Page - ams-OSRAM AG |
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AS3722 数据表(HTML) 72 Page - ams-OSRAM AG |
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72 / 199 page  ams Datasheet Page 71 [v1-01] 2015-Sep-07 Document Feedback AS3722 − Detailed Descriptions- System Functions corresponding status bit (temp_sdX_shutdown) can only be cleared by reading the register. It’s possible to generate an interrupt (mask able) on reaching both the alarm and the shutdown level. Figure 67: Temperature Supervision Characteristics Temperature Supervision Characteristic: Shows the key electrical parameter of the over-temperature supervision. Current Supervision All LDO’s and DCDC step downs have an integrated over-current protection. When a regulator runs into its current limit, the output voltage will drop and trigger a “low voltage” interrupt when hitting the threshold (-5% for SD0-6). Symbol Parameter Conditions Min Typ Max Unit Talarm0 ov_temp_alarm0 rising threshold 79 94 109 ºC Talarm1 ov_temp_alarm1 rising threshold 98 113 128 ºC Tshutdown ov_temp_shutdown rising threshold 125 140 155 ºC Thyst ov_temp_110/140 hysteresis 5ºC TSDx_alarm temp_sdX_alarm rising threshold 95 110 1125 ºC TSDx_shutdown temp_sdX_shutdown rising threshold 125 140 155 ºC |
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