IL3285 ETC1 | Alldatasheet

Document overview

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Technical content

Features

  • 3.3 V Input Supply Compatible
  • 2500 VRMS Isolation (1 min)
  • 40 ns Propagation Delay
  • 5 ns Pulse Skew
  • 20 kV/µs Transient Immunity
  • Thermal Shutdown Protection
  • -40°C to +85°C Temperature Range
  • 16 Pin SOIC Package
  • UL1577 Approval Pending
  • IEC 61010-1 Approval Pending
  • +15 kV ESD Protection

Applications

  • High Node Count Networks
  • Security Networks
  • Building Environmental Controls
  • Industrial Control Networks
  • Gaming Systems
  • Factory Automation

Description

The IL3000 series are galvanically isolated, differential bus transceivers designed for bidirectional data communication on balanced transmission lines. Isolation is achieved through patented* Isoloop ® technology. The IL3285 and IL3222 offer an exceptional 2.3 V differential output into a 54 Ω load, which allows better data integrity over longer cable lengths. These devices are also compatible with 3.3 V input supplies, allowing interface to standard microcontrollers without the need for additional level-shifting components. The IL3000 series have current limiting and thermal shutdown features to protect against output short circuits and bus contention situations which may cause excessive power dissipation. The receivers also incorporate a “sail-safe if open” design which ensures a logic high on R if the bus lines are disconnected or “floating”.

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com Absolute Maximum Ratings Parameters Symbol Min. Typ. Max. Units Test Conditions Storage Temperature T S -65 150 °C Ambient Operating Temperature T A -40 100 °C Voltage Range at A or B Bus Pins -7 12 V Supply Voltage (1) V DD1, VDD2 -0.5 7 V Digital Input Voltage -0.5 V DD+0.5 V Digital Output Voltage -0.5 V DD+1 V ESD Protection IL3285 IL3222 +15 +7 kV kV Recommended Operating Conditions Parameters Symbol Min. Typ. Max. Units Test Conditions Supply Voltage V DD1 VDD2 3.0 4.5 5.5 5.5 V Input Voltage at any Bus Terminal (separately or common mode) VI VIC V High-Level Digital Input Current I IH 10 mA mA VDD1= 3.3 V VDD1= 5.0 V Low-Level Digital Input Current I IH -10 -10 mA mA VDD1= 3.3 V VDD1= 5.0 V Differential Input Voltage (2) V ID +12/-7 V High-Level Output Current (Driver) I OH -60 mA High-Level Digital Output Current (Receiver) I OH -8 8 mA Low-Level Output Current (Driver) I OL -60 60 mA Low-Level Digital Output Current (Receiver) IOL -8 8 mA Ambient Operating Temperature T A -40 85 °C Digital Input Signal Rise and Fall Times tIR,tIF 10 µs Insulation Specifications Parameters Symbol Min. Typ. Max. Units Test Conditions Creepage Distance (external) 8.077 Barrier Impedance Ω || pC >10 14||7 Leakage Current µARMS 0.2 240 V RMS, 60 Hz Safety & Approvals IEC61010-1 TUV Certificate Numbers: Approval Pending Classification as Table 1. Package Type Model Pollution Degree Material Group Max. Working Voltage 16-SOIC (0.3”) IL3285, IL3222 II III 300 V RMS UL 1577 Rated 2500 VRMS for 1 minute Component Recognition program. File #: Approval Pending

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com Pin Connections

1 VDD1 Input Power Supply

2 GND1 Input Power Supply Ground Return

3 R Output Data from Bus

4 RE Read Data Enable (if RE is high, R= high

impedance)

5 DE Drive Enable

6 COIL Supply voltage side of coils for DE and D

7 D Data Input to Bus

8 GND1 Input Power Supply Ground Return

9 GND2 Output Power Supply Ground Return

10 NC No Internal Connection

11 VDD2 Output Power Supply

12 A Noninverting bus line

13 B Inverting bus line

14 NC No Internal Connection

15 GND2 Output Power Supply Ground Return

16 VCOIL Supply voltage side of coil for R

impedance)

10 Y Noninverting driver bus line

12 Z Inverting driver bus line

13 B Inverting receiver bus line

14 A Noninverting receiver bus line

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.

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com Driver Section Electrical Specifications are Tmin to Tmax unless otherwise stated. Parameters Symbol Min. Typ. Max. Units Test Conditions Output voltage V DD V Io = 0 Differential Output Voltage |V OD1| V DD V I O = 0 Differential Output Voltage(6) VOD3 1.5 2.3 5 V RL = 54 Ω, VDD = 5 V Change in Magnitude of (7) Differential Output Voltage ∆|VOD| ±0.2 V RL = 54 Ω or 100 Ω V OC Common Mode Output Voltage V OC 3 V RL = 54 Ω or 100 Ω Change in Magnitude of (7) Common Mode Output Voltage ∆|VOC| ±0.2 V RL = 54 Ω or 100 Ω Output Current(4) 1 -0.8 mA Output Disabled, VO = 12 High Level Input Current I IH 2 mA Low Level Input Current I IL 10 mA |Short-circuit Output Current | I OS 60 250 mA -7 V < V O <12 V Supply Current (V DD2 = +5V) I DD2 4 7 mA No Load (Outputs Enabled) Supply Current (V DD1 = +5V) I DD1 2 3 mA (V DD2 = +3.3V) I DD1 1.4 2 mA Switching Specifications Parameters Symbol Min. Typ. Max. Units Test Conditions Maximum Data Rate 5 Mbps RL = 54 Ω, CL = 50 pF Differential Output Prop Delay t D(OD) 40 65 ns RL = 54 Ω, CL = 50 pF Pulse Skew(10) t SK(P) 6 20 ns RL = 54 Ω, CL = 50 pF Differential Output Rise & Fall Time t T(OD) 12 25 ns RL = 54 Ω, CL = 50 pF Output Enable Time To High Level t PZH 25 80 ns RL = 54 Ω, CL = 50 pF Output Enable Time To Low Level t PZL 25 80 ns RL = 54 Ω, CL = 50 pF Output Disable Time From High Level t PHZ 25 80 ns RL = 54 Ω, CL = 50 pF Output Disable Time From Low Level t PLZ 25 80 ns RL = 54 Ω, CL = 50 pF Skew Limit(3) t SK(LIM) 12 40 ns RL = 54 Ω, CL = 50pF Notes: These notes apply to both driver and receiver sections. 1. All Voltage values are with respect to network ground except differential I/O bus voltages. 2. Differential input/output voltage is measured at the noninverting terminal A with respect to the inverting terminal B. 3. Skew limit is the maximum difference in any two channels in one device. 4. The power-off measurement in ANSI Standard EIA/TIA-422- B applies to disabled outputs only and is not applied to combined inputs and outputs. 5. All typical values are at V DD!,VDD2 = 5 V or VDD!= 3.3 V and TA = 25°C. 6. While –7 V<VCM>12 V, the minimum VOD2 with a 54 Ω load is either ½ VOD1 or 2.3 V, whichever is greater. 7. D|V OD| and D|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed form one logic state to the other. 8. This applies for both power on and power off, refer to ANS I standard RS-485 for exact condition. The EIA/TIA-422-B limit does not apply for a combined driver and receiver terminal. 9. Includes 10 ns read enable time. Maximum propagation delay is 25 ns after read assertion. 10. Pulse skew is defined as the |t PLH -tPHLl| of each channel.

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com Receiver Section Electrical Specifications are Tmin to Tmax unless otherwise stated. Parameters Symbol Min. Typ. Max. Units Test Conditions Positive-going Input Threshold Voltage VIT+ 0.2 V -7 V < VCM < 12 V Negative-going Input Threshold Voltage VIT- –0.2 V -7 V < VCM < 12 V Hysteresis Voltage (Vit+ - Vit-) V HYS 70 mV VCM =0V, T=25°C High Level Digital Output Voltage V OH VDD – 0.2 V DD V V ID = 200 mV I OH = -20 mA Low Level Digital Output Voltage V OL 0.2 V V ID = -200 mV I OL = 20mA High-impedance-state output current I OZ 1 µA 0.4 ≤ VO ≤ (VDD2 - 0.5) V Line Input Current(8) I I 1 mA V I = 12 V -0.8 V I = -7 V Input Resistance r I 96 kΩ Supply Current (VDD2 = +5V) I DD2 4 7 mA Supply Current (VDD1 = +5V) I DD1 2 3 mA Supply Current (VDD1 = +3.3V) I DD1 1.4 2 mA Switching Characteristics @ 5 V Parameters Symbol Min. Typ. Max. Units Test Conditions Maximum Data Rate 1 Mbps RL = 54 Ω, CL = 50 pF Propagation Delay(9) tPD 100 165 ns -1.5 ≤ VO ≤ 1.5 V, CL = 15 pF Pulse Skew(10) t SK(P) 4 16 ns -1.5 ≤ VO ≤ 1.5 V, CL = 15 pF Skew Limit(3) t SK(LIM) 8 32 ns RL = 54 Ω, CL = 50 pF Output Enable Time To High Level t PZH 15 60 ns C L = 15 pF Output Enable Time To Low Level t PZL 15 60 ns C L = 15 pF Output Disable Time From High Level t PHZ 15 60 ns C L = 15 pF Output Disable Time From Low Level t PLZ 15 60 ns C L = 15 pF Switching Characteristics @ 3.3 V Parameters Symbol Min. Typ. Max. Units Test Conditions Maximum Data Rate 5 Mbps RL = 54 Ω, CL = 50 pF Propagation Delay(9) tPD 105 170 ns -1.5 ≤ VO ≤ 1.5 V, CL = 15 pF Pulse Skew(10) t SK(P) 4 16 ns -1.5 ≤ VO ≤ 1.5 V, CL = 15 pF Skew Limit(3) t SK(LIM) 8 16 ns RL = 54 Ω, CL = 50 pF Output Enable Time To High Level t PZH 17 27 ns C L = 15 pF Output Enable Time To Low Level t PZL 17 27 ns C L = 15 pF Output Disable Time From High Level t PHZ 17 27 ns C L = 15 pF Output Disable Time From Low Level t PLZ 17 27 ns C L = 15 pF

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com Example 1. In this case, Tnom = 25ºC, Vin High is 5 V, Vin Low is 0 V, and Icoil minimum is specified as 10 mA. Total loop resistance is Ω 5 = ) −( = Ω=Ω==+ 44Ω55500R1 Therefore, 500 0.01 5.0 I Low)V-High(V )R (R1 coil in in coil Example 2. At a maximum operating temperature of 85°C, Tmax = 85ºC, Tnom = 25ºC, Vin High = 5 V, Vin Low = 0 V, and nominal Rcoil = 55 Ω. At Tmax = 85ºC Ω=−= Ω=+=×+= ×)−(+ = 435 650.01 0-5 R- I Low)V-High(V R1 isresistor series drecommende theTherefore, 659.955165.025-8555 TCRTT55R coil coil inin coilminmaxcoil Allowance should also be made for the temperature coefficient of the current limiting resistor to ensure that Icoil is 10 mA at maximum operating temperature. Power Supplies It is recommended that 47 nF ceramic capacitors be used to decouple the power supplies. The capacitors must be placed as close as possible to V DD for proper operation. DC Correctness The IL3000 Series of isolated transceivers are inherently DC stable which effectively maintains the correct output state with respect to data input. At power up, the bus outputs will follow the Function Table shown on Page 1. It is recommended that the DE input is always held low during power up to eliminate false drive data pulses from the bus. The use of an external power supply monitor to minimize glitches caused by slow power-up and power-down transients is not required. Receiver Features The receiver in these devices feature a “fail-safe if open” function that guarantees a high level receiver output if the receiver inputs are unconnected (floating). IL3285 receiver outputs have tri-state capability via the active low RE input. Driver Features The driver is device delivers at least 1.5 V across a 54 Ω load and features low propagation delay skew to maximize bit width and to minimize EMI. The drivers have tri-state capability via the active high DE input. Receiver Data Rate, Cables and Terminations This devices are intended for network lengths up to 4000', but the maximum system data rate decreases as the transmission line length increases. Twisted pair cable should be used in all networks since they tend to pick up noise and other electromagnetically induced voltages as common mode signals, which are effectively rejected by the differential receivers in these ICs.

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com Package Dimensions: 0.3’’ 16- in SOIC Ordering Information and Valid part Numbers

NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com About NVE An ISO 9001 Certified Company NVE Corporation is a high technology components manufacturer having the unique capability to combine leading edge Giant Magnetoresistive (GMR) materials with integrated circuits to make high performance electronic components. Products include Magnetic Field Sensors, Magnetic Field Gradient Sensors (Gradiometer), Digital Magnetic Field Sensors, Digital Signal Isolators and Isolated Bus Transceivers. NVE is a leader in GMR research and in 1994 introduced the world’s first products using GMR material, a line of GMR magnetic field sensors that can be used for position, magnetic media, wheel speed and current sensing. NVE is located in Eden Prairie, Minnesota, a suburb of Minneapolis. Please visit our Web site at www.nve.com or call 952-829- 9217 for information on products, sales or distribution. NVE Corporation

11409 Valley View Road

Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.nve.com e-mail: isoinfo@nve.com The information provided by NVE Corporation is believed to be accurate. However, no responsibility is assumed by NVE Corporation for its use, nor for any infringement of patents, nor rights or licenses granted to third parties, which may result from its use. No license is granted by implication, or otherwise, under any patent or patent rights of NVE Corporation. NVE Corporation does not authorize, nor warrant, any NVE Corporation product for use in life support devices or systems or other critical applications. The use of NVE Corporation’s products in such applications is understood to be entirely at the customer’s own risk. Specifications shown are subject to change without notice. ISB-DS-001-IL3285/22-A January 26, 2005