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LTC3207EUF-TRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC3207EUF-TRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 20 page  LTC3207/LTC3207-1 3 3207fc PARAMETER CONDITIONS MIN TYP MAX UNITS LED Current Matching Any Two Outputs, 50% of FS 2 % LED Dropout Voltage ILED = FS 180 mV Blink Rate Period REG15, D6 and D7 1.25 2.5 s s ULED Up/Down Gradation Times REG15, D4 and D5 ● ● ● 0.24 0.48 0.96 0.45 0.9 1.8 s s s s s s VOL General Purpose Output Mode (GPO) IOUT = 1mA, Single Output Enabled 7 mV CAM LED Current, 4-Bit Linear DAC, CAM = 1V Full-Scale LED Current 425 mA Minimum (1LSB) LED Current 29 mA LED Dropout Voltage ILED = FS 450 mV High Current Safety Timer High Current Mode 2.1 s Charge Pump (CPO) 1x Mode Output Impedance 0.6 Ω 1.5x Mode Output Impedance VBAT = 3V, VCPO = 4.2V (Note 5) 3.6 Ω 2x Mode Output Impedance VBAT = 3V, VCPO = 4.8V (Note 5) 4.1 Ω CPO Regulation Voltage 1.5x Mode, ICPO = 20mA 2x Mode, ICPO = 20mA 4.55 5.05 V V CLOCK Frequency ● 0.65 0.85 1.05 MHz SDA, SCL, ENU, CAMHL VIL ● 0.3 • DVCC V VIH ● 0.7 • DVCC V IIH SDA, SCL, ENU, CAMHL = DVCC ● –1 1 µA IIL SDA, SCL, ENU, CAMHL = 0V ● –1 1 µA VOL Digital Output Low (SDA) IPULLUP = 3mA ● 0.12 0.4 V Serial Port Timing (Notes 6, 7) tSCL Clock Operating Frequency 400 kHz tBUF Bus Free Time Between Stop and Start Condition 1.3 µs tHD,STA Hold Time After (Repeated) Start Condition 0.6 µs tSU,STA Repeated Start Condition Setup Time 0.6 µs tSU,STO Stop Condition Setup Time 0.6 µs tHD,DAT(OUT) Output Data Hold Time 0 900 ns tHD,DAT(IN) Input Data Hold Time 0 ns tSU,DAT Data Setup Time 100 ns tLOW Clock Low Period 1.3 µs tHIGH Clock High Period 0.6 µs ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VBAT = 3.6V, DVCC = 3V, ENU = Hi, CAMHL = LO, C1 = C2 = C3 = 2.2µF, C4 = 4.7µF, unless otherwise noted. |
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