Datasheet LT3960 (Analog Devices) - 3

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ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VCC = 3.3V, Figure 1 Applies with R PU = 4.99k, RL = 60Ω, EN/MODE = VCC, TYP values unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Low Dropout Regulator
VIN Input Voltage Operating Range VCC Regulated Internally from VIN l 4 60 V VIN Tied to VCC, 3.3V Range l 3 3.6 V VIN Tied to VCC, 5V Range l 4.5 5.5 V IIN(SD) VIN Shutdown Current EN/MODE = 0V 20 26 µA VCC LDO Regulation Voltage 4V ≤ VIN ≤ 60V, ILDO = 1mA 3.1 3.3 3.5 V VLINE LDO Line Regulation 4V ≤ VIN ≤ 60V, ILDO = 1mA 0.05 %/V VLOAD LDO Load Regulation 0.1mA < ILDO < 100mA 0.05 %/mA VCC,LOW LDO Voltage at Low VIN ILDO = 85mA, VIN = 4V 3 V ILIMCC LDO Current Limit VCC = 3.0 100 130 160 mA LDO Foldback Current Limit VCC = 0.5V 25 mA VUVLO VCC Undervoltage Lockout Threshold VCC Falling l 2.6 2.7 2.9 V VCC Undervoltage Lockout Hysteresis 75 mV ICC VCC Shutdown Supply Current EN/MODE = 0V, VCC = VIN 3 mA VCC Operating Supply Current EN/MODE ≥ 0.7V, VCC = VIN 4.2 6 mA
EN/MODE Selection
VSHDN EN/MODE Shutdown Threshold Falling l 400 700 800 mV VSHDN-HYS EN/MODE Shutdown Hysteresis 50 mV VMSTR EN/MODE Master Threshold l 1.9 2 2.2 V IEN-UP EN/MODE Pin Bias Current Low EN/MODE = 350mV 2 µA
CAN Drivers
VO(D) Bus Output Voltage CANxH t < tTO:CAN VCC = 3.3V l 2.15 2.9 3.3 V (Dominant) VCC = 5V l 2.75 3.6 4.5 V CANxL t < tTO:CAN VCC = 3.3V l 0.5 0.9 1.65 V VCC = 5V 0.5 1.4 2.25 V VO(R) Bus Output Voltage (Recessive) VCC = 3.3V, No Load (Figure 1) l 1.45 1.95 2.45 V VCC = 5V, No Load (Figure 1) l 2 2.5 3 V VOD(D) Differential Output Voltage (Dominant) RL = 50Ω to 65Ω VCC = 3.3V l 1.5 2.2 3 V VOD(D) Differential Output Voltage (Dominant) VCC = 5V 2.7 3.1 3.5 V VOD(R) Differential Output Voltage (Recessive) No Load (Figure 1) l –500 0 50 mV VOC(R) Common Mode Output Voltage (Dominant) VCC = 3.3V, (Figure 1) l 1.45 1.95 2.45 V VCC = 5V, (Figure 1) l 2 2.5 3 V IOS(D) Bus Output Short-Circuit Current CANxH CANxH = 0V l –150 –75 –40 mA (Dominant) CANxH –40V < CANxH < VO(R) l –150 3 mA CANxL CANxL = 5V l 25 75 100 mA CANxL VCC < CANxL < 40V l –3 100 mA
CAN Receivers
VCM Bus Common Mode Voltage = VCC = 3.3V l ±25 V (CANxH+CANxL)/2 for Data Reception VCC = 5V l ±36 V VTH+ Bus Input Differential Threshold Voltage VCC = 3.3V, –25V ≤ VCM ≤ 25V l 775 900 mV (Positive Going) VCC = 5V, –36V ≤ VCM ≤ 36V l 775 900 mV VTH– Bus Input Differential Threshold Voltage VCC = 3.3V, –25V ≤ VCM ≤ 25V l 500 625 mV (Negative Going) VCC = 5V, –36V ≤ VCM ≤ 36V l 500 625 mV Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Switching Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagrams Operation Applications Information Typical Applications Typical Application Related Parts