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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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BQ40Z50-R2 데이터시트(PDF) 17 Page - Texas Instruments |
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BQ40Z50-R2 데이터시트(HTML) 17 Page - Texas Instruments |
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17 / 51 page  17 bq40z50-R2 www.ti.com SLUSCS4 – JUNE 2017 Product Folder Links: bq40z50-R2 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Timing Requirements: OCD, SCC, SCD1, SCD2 Current Protection Timing (continued) Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V to 26 V (unless otherwise noted) MIN NOM MAX UNIT ΔtSCD1 SCD1 detection delay time program step AFE PROTECTION CONTROL[SCDDx2] = 0 61 µs AFE PROTECTION CONTROL[SCDDx2] = 1 121 tSCD2 SCD2 detection delay time AFE PROTECTION CONTROL[SCDDx2] = 0 0 458 µs AFE PROTECTION CONTROL[SCDDx2] = 1 0 915 ΔtSCD2 SCD2 detection delay time program step AFE PROTECTION CONTROL[SCDDx2] = 0 30.5 µs AFE PROTECTION CONTROL[SCDDx2] = 1 61 tDETECT Current fault detect time VSRP – VSRN = VT – 3 mV for OCD, SCD1, and SC2, VSRP – VSRN = VT + 3 mV for SCC 160 µs tACC Current fault delay time accuracy Max delay setting –10% 10% 7.33 Timing Requirements: SMBus Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V to 26 V (unless otherwise noted) MIN NOM MAX UNIT fSMB SMBus operating frequency SLAVE mode, SMBC 50% duty cycle 10 100 kHz fMAS SMBus master clock frequency MASTER mode, no clock low slave extend 51.2 kHz tBUF Bus free time between start and stop 4.7 µs tHD(START) Hold time after (repeated) start 4.0 µs tSU(START) Repeated start setup time 4.7 µs tSU(STOP) Stop setup time 4.0 µs tHD(DATA) Data hold time 300 ns tSU(DATA) Data setup time 250 ns tTIMEOUT Error signal detect time 25 35 ms tLOW Clock low period 4.7 µs tHIGH Clock high period 4.0 50 µs tR Clock rise time 10% to 90% 1000 ns tF Clock fall time 90% to 10% 300 ns tLOW(SEXT) Cumulative clock low slave extend time 25 ms tLOW(MEXT) Cumulative clock low master extend time 10 ms 7.34 Timing Requirements: SMBus XL Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V to 26 V (unless otherwise noted) MIN NOM MAX UNIT fSMBXL SMBus XL operating frequency SLAVE mode 40 400 kHz tBUF Bus free time between start and stop 4.7 µs tHD(START) Hold time after (repeated) start 4.0 µs |
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