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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PIFE32251B-R68MS 데이터시트(PDF) 43 Page - Texas Instruments |
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PIFE32251B-R68MS 데이터시트(HTML) 43 Page - Texas Instruments |
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43 / 157 page  43 TPS650830 www.ti.com SLVSCF4A – DECEMBER 2014 – REVISED JULY 2016 Submit Documentation Feedback Product Folder Links: TPS650830 Specifications Copyright © 2014–2016, Texas Instruments Incorporated Electrical Characteristics (continued) Over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Rext_bkup External resistor in series with backup battery Place between backup battery and VBATTBKUP pin, for limiting current out of backup battery 1 kΩ I2C INTERFACE VIL SDA, SCL input low voltage 0.4 V VIH SDA, SCL input high voltage 1.2 V SDA, SCL input current Clamped on 3.3 V 0.01 0.3 μA SDA output low voltage ISDA = 5 mA (using a 354 Ω or larger external pull-up resistor) 0.04 0.4 V Cb Capacitive load for SDA and SCL 400 pF 5.6 Timing Requirements PARAMETER TEST CONDITIONS MIN TYP MAX UNIT I2C INTERFACE tI2C_Rdy Minimum time for I2C to be ready after VIN > UVLO5V rising Time after VIN rising above > VUVLO_5V_Main + VHys_5V_Mainuntil OTP is loaded and I 2C is ready to communicate 1 ms f(SCL) SCL clock frequency Standard-mode 100 kHz Fast-mode 400 Fast-mode Plus 1000 tBUF Bus free time between a STOP and START condition Standard-mode 4.7 μs Fast-mode 1.3 Fast-mode Plus 0.5 tHD; STA Hold time (repeated) START condition Standard-mode 4 μs Fast-mode 600 ns Fast-mode Plus 260 ns tSU; STA Setup time for a repeated START condition Standard-mode 4.7 μs Fast-mode 600 ns Fast-mode Plus 260 ns tSU; DAT Data setup time Standard-mode 250 ns Fast-mode 100 Fast-mode Plus 50 tHD; DAT Data hold time Standard-mode 0 3.45 μs Fast-mode 0 0.9 μs Fast-mode Plus 0 ns trCL Rise time of SCL signal Standard-mode 1000 ns Fast-mode 20 300 Fast-mode Plus 120 trDA Rise time of SDA signal Standard-mode (using a 2.95 kΩ or smaller external pull-up resistor) 1000 ns Fast-mode (using an 885 Ω or smaller external pull-up resistor) 20 300 Fast-mode Plus (using a 354 Ω or smaller external pull-up resistor) 120 |
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