Datasheet LTM2889 (Analog Devices) - 4

LTM2889
ELECTRICAL CHARACTERISTICS The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Unless otherwise noted, the following conditions apply: PVCC = VCC = 3.3V for the LTM2889-3, PVCC = VCC = 5V for the LTM2889-5, VL = 3.3V, GND = GND2 = S = RE = RS = 0V, ON = VL. Figure 10 applies for VCC2 = 3.3V; otherwise ADJ is floating. Figure 1 applies with RL = 60Ω and dominant mode measurements are taken prior to TXD dominant timeout (t < tTOTXD). (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Control Inputs S, ON, RE:
VIH HIGH-level Input Voltage VL ≥ 2.35V l 0.7 • VL VL + 0.3 V 1.62V ≤ VL < 2.35V l 0.75 • VL VL + 0.3 V VIL LOW-level Input Voltage VL ≥ 2.35V l –0.3 0.3 • VL V 1.62V ≤ VL < 2.35V l –0.3 0.25 • VL V IIH HIGH-level Input Current ON = S = RE = VL l 11 25 µA IIL LOW-level Input Current ON = S = RE = 0V l ±1 µA
CAN Transmit Data Input Pin TXD
VIH HIGH-level Input Voltage VL ≥ 2.35V l 0.7 • VL VL + 0.3 V 1.62V ≤ VL < 2.35V l 0.75 • VL VL + 0.3 V VIL LOW-level Input Voltage VL ≥ 2.35V l –0.3 0.3 • VL V 1.62V ≤ VL < 2.35V l –0.3 0.25 • VL V IIH HIGH-level Input Current TXD = VL l ±5 µA IIL LOW-level Input Current TXD = 0V l –50 –2 µA CIN Input Capacitance (Note 6) 5 pF
CAN Receive Data Output Pin RXD
IOH HIGH-level Output Current RXD = VL – 0.4V 3V ≤ VL ≤ 5.5V l –4 mA 1.62V ≤ VL < 3V l –1 mA IOL LOW-level Output Current RXD = 0.4V, Bus 3V ≤ VL ≤ 5.5V l 4 mA Dominant 1.62V ≤ VL < 3V l 1 mA
Bus Driver Pins CANH, CANL
VO(D) Bus Output Voltage (Dominant) CANH TXD = 0V, t< tTOTXD VCC2 = 5V l 2.75 3.6 4.5 V to GND2 VCC2 = 3.3V l 2.15 2.9 3.3 V CANL TXD = 0V, t< tTOTXD VCC2 = 5V l 0.5 1.4 2.25 V VCC2 = 3.3V l 0.5 0.9 1.65 V VO(R) Bus Output Voltage (Recessive) to GND2 VCC2 = 5V, No Load (Figure 1) l 2 2.5 3 V VCC2 = 3.3V, No Load (Figure 1) l 1.45 1.95 2.45 V VOD(D) Differential Output Voltage (Dominant) RL = 50Ω to 65Ω (Figure 1) l 1.5 2.2 3 V VOD(R) Differential Output Voltage (Recessive) No Load (Figure 1) l –500 0 50 mV VOC(D) Common Mode Output Voltage (Dominant) VCC2 = 5V, (Figure 1) l 2 2.5 3 V to GND2 VCC2 = 3.3V, (Figure 1) l 1.45 1.95 2.45 V IOS(D) Bus Output Short-Circuit Current CANH CANH = 0V to GND2 l –100 –75 mA (Dominant) CANH CANH = ±60V to GND2 l –100 3 mA CANL CANL = 5V to GND2 l 75 110 mA CANL CANL = ±60V to GND2 l –3 100 mA 2889fa 4 For more information www.linear.com/LTM2889