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MAX8798 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX8798 Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 31 page  Internal-Switch Boost Regulator with Integrated 3-Channel Scan Driver for TFT LCDs 4 _______________________________________________________________________________________ PARAMETER CONDITIONS MIN TYP MAX UNITS 2-WIRE INTERFACE Logic-Input Low Voltage (VIL) SDA, SCL, WPN, VDD = 3V 0.3 x VDD V Logic-Input High Voltage (VIH) SDA, SCL, WPN, VDD = 3V 0.7 x VDD V WPP Logic-Output Low Voltage IWPP = 1mA +0.1 V WPP Logic-Output High Voltage IWPP = 1mA VDD - 0.1 V SDA Logic-Output Low Sink Current SDA forced to 3.3V 6 mA Logic Input Current SDA, SCL, SCL_S,WPN to VDD or GND -1 +1 μA Input Capacitance SDA, SCL, SCL_S 5 pF SCL Frequency (fCLK) DC 500 kHz SCL High Time (tCLH) 600 ns SCL Low Time (tCLL) 1300 ns SDA, SCL, SCLS Rise Time (tR) CBUS = total capacitance of bus line in pF 20 + 10 x CBUS 300 ns SDA, SCL, SCLS Fall Time (tF) CBUS = total capacitance of bus line in pF 20 + 10 x CBUS 300 ns START Condition Hold Time (tHDSTT) 10% of SDA to 90% of SCL 600 ns START Condition Setup Time (tSVSTT) 600 ns Data Input Hold Time (tHDDAT) 0 ns Data Input Setup Time (tSUDAT) 150 ns STOP Condition Setup Time (tSVSTP) 600 ns Bus Free Time (tUF) 1300 ns Input Filter Spike Suppression (tSP) SDA, SCL (Note 5) 250 ns WPN = GND 1 M SCL-SCLS Switch Resistance WPN = VDD 20 50 HIGH-VOLTAGE SCAN DRIVER GON Input Voltage Range 12 45 V GOFF Input Voltage Range -25 -2 V GON to GOFF VGON - VGOFF 65 V GON Supply Current STV, CPV, OE, OECON = AGND 250 350 μA GOFF Supply Current STV, CPV, OE, OECON = AGND 100 200 μA Output-Voltage Low CKV, CKVB, STVP, -5mA output current VGOFF + 0.2 VGOFF + 0.05 V Output-Voltage High CKV, CKVB, STVP, 5mA output current VGON - 0.05 VGON - 0.2 V Propagation Delay Between OE Rising Edge and CKV/CKVB Edge VCPV = 0, VSTV = 0, CLOAD = 4.7nF, 50 250 450 ns ELECTRICAL CHARACTERISTICS (continued) (VIN = VDD = VSHDN = +3V, circuit of Figure 2, VBOOST = 8V, VGON = 23V, VGOFF = -12V, VPOS = 0, VNEG = 1.5V, VOE = VCPV = VSTV = VOECON = 0, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) |
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