LT41050T-3ETR13 datasheet(5/10 Pages) ETC2

Part #	LT41050T-3ETR13

Description	Isolated High-Speed CAN Transceiver

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IL41050

5

NVE Corporation

11409 Valley View Road, Eden Prairie, MN 55344-3617

Phone: (952) 829-9217

Fax: (952) 829-9189

www.IsoLoop.com

©NVE Corporation

Specifications (...cont.)

Electrical Specifications are Tmin to Tmax and VDD1, VDD2= 4.5 V to 5.5 V unless otherwise stated.

Differential input capacitance

Ci(dif)

3.75

10

pF

VTxD = VDD1

Input leakage current at CANH

ILI(CANH)

100

170

250

μA

VCANH= 5 V, VDD2= 0 V

Input leakage current at CANL

ILI(CANL)

100

170

250

μA

VCANL= 5 V, VDD2= 0 V

Thermal Shutdown

Shutdown junction temperature

Tj(SD)

155

165

180

°C

Timing Characteristics

TxD to bus active delay

td(TxD-BUSon)

29

32

63

66

125

128

ns

VS= 0 V; VDD1 = 5 V

VS = 0 V; VDD1 = 3.3 V

TxD to bus inactive delay

td(TxD-BUSoff)

29

32

68

71

110

113

ns

VS = 0 V; VDD1 = 5 V

VS = 0 V; VDD1 = 3.3 V

Bus active to RxD delay

td(BUSon-RxD)

24

27

58

61

125

128

ns

VS = 0 V; VDD1 = 5 V

VS = 0 V; VDD1 = 3.3 V

Bus inactive to RxD delay

td(BUSoff-RxD)

49

52

103

106

170

173

ns

VS = 0 V; VDD1 = 5 V

VS = 0 V; VDD1 = 3.3 V

TxD dominant time for timeout

Tdom(TxD)

250

457

765

μs

VTxD = 0 V

3.0 V > VDD1 < 5.5 V

Magnetic Field Immunity

(3)

VDD1 = 5 V, VDD2 = 5 V

Power frequency magnetic immunity

HPF

2,500

3,000

A/m

50 Hz/60 Hz

Pulse magnetic field immunity

HPM

3,000

3,500

A/m

tp = 8 µs

Cross-axis immunity multiplier

KX

1.8

Figure 1

VDD1 = 3.3 V, VDD2 = 5 V

Power frequency magnetic immunity

HPF

1,000

1,500

A/m

50 Hz/60 Hz

Pulse magnetic field immunity

HPM

1,800

2,000

A/m

tp = 8 µs

Cross-axis immunity multiplier

KX

1.5

Figure 1

Notes:

1. The TxD input is edge sensitive. Voltage magnitude of the input signal is specified, but edge rate specifications must also be met.

2. The maximum time allowed for a logic transition at the TxD input is 1 μs.

3. Uniform magnetic field applied across the pins of the device. Cross-axis multiplier effective when field is applied perpendicular to the pins.

4. If VDD2 falls below the specified failsafe supply voltage, RxD will go High.

Electrostatic Discharge Sensitivity

This product has been tested for electrostatic sensitivity to the limits stated in the specifications. However, NVE recommends that all integrated

circuits be handled with appropriate care to avoid damage. Damage caused by inappropriate handling or storage could range from performance

degradation to complete failure.

Electromagnetic Compatibility

The IL41050 is fully compliant with generic EMC standards EN50081, EN50082-1 and the umbrella line-voltage standard for Information

Technology Equipment (ITE) EN61000. The IsoLoop Isolator’s Wheatstone bridge configuration and differential magnetic field signaling ensure

excellent EMC performance against all relevant standards. NVE conducted compliance tests in the categories below:

EN50081-1

Residential, Commercial & Light Industrial

Methods EN55022, EN55014

EN50082-2: Industrial Environment

Methods EN61000-4-2 (ESD), EN61000-4-3 (Electromagnetic Field Immunity), EN61000-4-4 (Electrical Transient Immunity),

EN61000-4-6 (RFI Immunity), EN61000-4-8 (Power Frequency Magnetic Field Immunity), EN61000-4-9 (Pulsed Magnetic

Field), EN61000-4-10 (Damped Oscillatory Magnetic Field)

ENV50204

Radiated Field from Digital Telephones (Immunity Test)

Immunity to external magnetic fields is higher if the field direction is “end-to-end” (rather than to “pin-to-pin”) as shown in the

diagram at right.

Fig. 1

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