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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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LP87702 데이터시트(PDF) 27 Page - Texas Instruments |
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LP87702 데이터시트(HTML) 27 Page - Texas Instruments |
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27 / 98 page  Long Open Close Open WD Reset Increase Reset Counter value, WDI Rising CloseTime Expired WDI Rising WDI Rising LongOpenTime Expired OpenTime Expired Shutdown Sequence WD_RESET output active for (7.5ms +10ms) or (15ms+10ms) Read OTP Stop WD_EN_OTP_READ = 0 WD_EN_OTP_READ = 1 WD_SYS_RESTART_FLAG_MODE = 1 Restart Disabled OR Reset Counter < Counter Select Restart Enabled AND Reset Counter >= Counter Select I2C Writing to WD Control Register (from all states except Stop) Release ENx pin gating Shutdown NRST low OR VANA < VANA_UVLO NRST high AND VANA > VANA_UVLO (WD_SYSTEM_RESTART_FLAG = 0 OR WD_SYSTEM_RESTART_FLAG_MODE = 0) AND WD_EN_OTP_READ = 1 (WD_SYSTEM_RESTART_FLAG = 0 OR WD_SYSTEM_RESTART_FLAG_MODE = 0) AND WD_EN_OTP_READ = 0 WD_RESET output active for 10ms Set WD_SYSTEM_ RESTART_FLAG = 1 Figure 7-8. Watchdog Operation www.ti.com LP87702 SNVSBU3 – MARCH 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 27 Product Folder Links: LP87702 |
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