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LTM2892 Datasheet(PDF) 4 Page - Linear Technology |
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LTM2892 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 36 page  LTM2892 4 2892f For more information www.linear.com/LTM2892 elecTrical characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC1 = 5V, VCC2 = 5V, VL1 = 3.3V, VL2 = 3.3V, GND1 = GND2 = 0V, ON1 = VL1, and ON2 = VL2 unless otherwise noted. Specifications apply to all options unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I2C VIL Low Level Input Voltage SCLIN, SDA1 SDA2 l l 0.3•VL1 0.3•VL2 V V VIH High Level Input Voltage SCLIN, SDA1 SDA2 l l 0.7•VL1 0.7•VL2 V V IINL Input Current SCLIN, SDA1 = VL1 or 0V SDA2 = VL2, SDA2 = VL2 = 0V l l ±1 ±1 µA µA VHYS Input Hysteresis SCLIN, SDA1 SDA2 0.05•VL1 0.05•VL2 mV mV VOH Output High Voltage SCLOUT, ILOAD = –2mA l VL2 – 0.4 V VOL Output Low Voltage SDA1, ILOAD = 3mA, SCLOUT, ILOAD = 2mA SDA2 = No Load, SDA1 = 0V, 4.5V ≤ VL2 < 5.5V SDA2 = No Load, SDA1 = 0V, 3V ≤ VL2 < 4.5V l l l 0.3 0.4 0.45 0.55 V V V CIN Input Pin Capacitance SCLIN, SDA1, SDA2 (Note 2) l 10 pF CB Bus Capacitive Load SCLOUT, Standard Speed (Note 2) SCLOUT, Fast Speed SDA1, SDA2, SR ≥ 1V/μs, Standard Speed (Note 2) SDA1, SDA2, SR ≥ 1V/μs, Fast Speed l l l l 400 200 400 200 pF pF pF pF SDA, SDA2 Slew Rate l 1 V/µs ISC Short-Circuit Current SDA2 = 0, SDA1 = VL1 0V ≤ SCLOUT ≤ VL2 SDA1 = 0, SDA2 = VL2 SDA1 = VL1, SDA2 = 0 l ±30 6 –1.8 100 mA mA mA mA ESD (HBM) (Note 2) Isolation Boundary GND2 to GND1 (VCC2, VL2, GND2) to (VCC1, VL1, GND1) ±15 ±10 kV kV SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Logic/SPI Maximum Data Rate INx → OUTx, CL = 15pF (Note 3) Bidirectional SPI Communication Unidirectional SPI Communication l l l 10 4 8 MHz MHz MHz tPHL, tPLH Propagation Delay INx → OUTx, CL = 15pF (Figure 1) l 35 60 100 ns tR, tF Rise and Fall Time OUTx, CL = 15pF (Figure 1) LTM2892-I, OUTB, CL = 15pF (Figure 1) l l 3 20 12.5 35 ns ns tPWU Output Pulse Width Uncertainty OUTB, OUTC, OUTE, OUTF (Note 2) –20 50 ns tPZH, tPZL Output Enable Time EOUTx = ↓ to OUTx, RL = 1k, CL = 15pF (Figure 2) l 50 ns tPHZ, tPLZ Output Disable Time EOUTx = ↑ to OUTx, RL = 1k, CL = 15pF (Figure 2) l 50 ns tPZH, tPZL ONx Enable Time ONx = ↑ to OUTx, RL = 1k, CL = 15pF (Figure 4) l 60 μs tPHZ, tPLZ ONx Disable Time ONx = ↓ to OUTx, RL = 1k, CL = 15pF (Figure 4) l 50 ns swiTching characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC1 = 5V, VCC2 = 5V, VL1 = 3.3V, VL2 = 3.3V, GND1 = GND2 = 0V, ON1 = VL1, and ON2 = VL2 unless otherwise noted. Specifications apply to all options unless otherwise noted. |
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