LT3960

3

Rev. B

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ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Low Dropout Regulator

VIN

Input Voltage Operating Range

VCC Regulated Internally from VIN

VIN Tied to VCC, 3.3V Range

VIN Tied to VCC, 5V Range

l

l

l

4

3

4.5

60

3.6

5.5

V

V

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

LDO Foldback Current Limit

VCC = 3.0

VCC = 0.5V

100

130

25

160

mA

mA

VUVLO

VCC Undervoltage Lockout Threshold

VCC Undervoltage Lockout Hysteresis

VCC Falling

l

2.6

2.7

75

2.9

V

mV

ICC

VCC Shutdown Supply Current

VCC Operating Supply Current

EN/MODE = 0V, VCC = VIN

EN/MODE ≥ 0.7V, VCC = VIN

4.2

3

6

mA

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

(Dominant)

CANxH t < tTO:CAN

VCC = 3.3V

l

2.15

2.9

3.3

V

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)

VCC = 5V, No Load (Figure 1)

l

l

1.45

2

1.95

2.5

2.45

3

V

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)

VCC = 5V, (Figure 1)

l

l

1.45

2

1.95

2.5

2.45

3

V

V

IOS(D)

Bus Output Short-Circuit Current

(Dominant)

CANxH CANxH = 0V

l

–150

–75

–40

mA

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

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.