LT3960

4

Rev. B

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ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

CAN Receivers

VCM

Bus Common Mode Voltage =

(CANxH+CANxL)/2 for Data Reception

VCC = 3.3V

VCC = 5V

l

l

±25

±36

V

V

VTH+

Bus Input Differential Threshold Voltage

(Positive Going)

VCC = 3.3V, –25V ≤ VCM ≤ 25V

VCC = 5V, –36V ≤ VCM ≤ 36V

l

l

775

775

900

900

mV

mV

VTH–

Bus Input Differential Threshold Voltage

(Negative Going)

VCC = 3.3V, –25V ≤ VCM ≤ 25V

VCC = 5V, –36V ≤ VCM ≤ 36V

l

l

500

500

625

625

mV

mV

∆VTH

Bus Input Differential Hysteresis Voltage

VCC = 3.3V, –25V ≤ VCM ≤ 25V

VCC = 5V, –36V ≤ VCM ≤ 36V

150

150

mV

mV

RIN

Input Resistance (CANxH and CANxL)

SCL = SDA = VCC; RIN = ∆V/∆I; ∆I = ±20 µA

l

25

35.7

50

kΩ

RID

Differential Input Resistance

SCL = SDA = VCC; RIN = ∆V/∆I; ∆I = ±20 µA

l

50

71.4

100

kΩ

∆RIN

Input Resistance Matching

RIN (CANxH) to RIN (CANxL)

l

±3

%

CIH

Input Capacitance to GND (CANxH)

(Note 4)

32

pF

CIL

Input Capacitance to GND (CANxL)

(Note 4)

8

pF

CID

Differential Input Capacitance

(Note 4)

8.4

pF

IL

Bus Leakage Current (Power Off)

VCC = 0V, CANxH = CANxL = 5V

±10

µA

VCC = 0V, CANxH = CANxL = 5V, t < 150°C

l

±50

µA

I2C Port

VIL

SDA, SCL Input Low Voltage

l

0.4

V

VIH

SDA, SCL Input High Voltage

l

1.5

V

Ii

SDA, SCL Input Leakage Current

SDA = SCL = 0V to 5.5V

–50

50

nA

Vhys

SDA, SCL Input Hysteresis

l

0.05 • VCC

V

VOL1

SDA, SCL Output Low Voltage

ISDA = 3mA

l

0.4

V

tr

Clock/Data Rise Time

CB = Capacitance of One Bus Line (pF) (Note 5)

20 + 0.1CB

300

ns

tf

Clock/Data Fall Time

CB = Capacitance of One Bus Line (pF) (Note 5)

20 + 0.1CB

300

ns

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 RPU = 4.99k, RL = 60Ω,

EN/MODE = VCC, TYP values unless otherwise specified.