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CA-IS3740LN

CA-IS3740LN

  • 厂商:

    CHIPANALOG(川土微)

  • 封装:

    SOIC16_150MIL

  • 描述:

    CA-IS3740LN

  • 数据手册
  • 价格&库存
CA-IS3740LN 数据手册
CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 www.chipanalog.com Preview Version CA-IS374x High-Speed Quad-Channel Digital Isolators 1 Key Features • • • • • • • • Signal Rate: DC to 150Mbps Wide Operating Supply Voltage: 2.5V to 5.5V Wide Operating Temperature Range: -40°C to 125°C No Start-Up Initialization Required Default Output High and Low Options High Electromagnetic Immunity High CMTI: ±100kV/µs (Typical) Low Power Consumption (Typical): ▪ 1.5mA per Channel at 1Mbps with 3.3V Supply ▪ 5.5mA per Channel at 100Mbps with 3.3V Supply Precise Timing (Typical) ▪ 8ns Propagation Delay ▪ 1ns Pulse Width Distortion ▪ 2ns Propagation Delay Skew ▪ 5ns Minimum Pulse Width Isolation Rating up to 5kVrms Isolation Barrier Life: >40 Years Tri-state Outputs with ENABLE Schmitt Trigger Inputs RoHS-Compliant Packages ▪ SOIC-16 Narrow Body ▪ SOIC-16 Wide Body • • • • • • 2 Applications • • • • • • Industrial Automation Systems Motor Control Medical Electronics Isolated Switch Mode Supplies Solar Inverters Isolated ADC, DAC 3 Description The CA-IS374x devices are high-performance quad-channel digital isolators with precise timing characteristics and low power consumption. The CA-IS374x devices provide high electromagnetic immunity and low emissions, while isolating CMOS digital I/Os. All device versions have Schmitt trigger input for high noise immunity. Each isolation channel consists of a transmitter and a receiver separated by silicon dioxide (SiO2) insulation barrier. The CA-IS3740 device has all four channels in the same direction with output enable Copyright © 2018, ChipAnalog Incorporated on the output side (B side), the CA-IS3741 device has three forward and one reverse-direction channels with output enable on both sides, the CA-IS3742 device has two forward and two reverse-direction channels with output enable on both sides, and the CA-IS3745 device has the same channel configuration as CA-IS3740 without output enable. All devices have fail-safe mode option. If the input power or signal is lost, default output is low for devices with suffix L and high for devices with suffix H. CA-IS374x devices has high insulation capability to handle noise and surge on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. High CMTI ability promises the correct transmission of digital signal. The CA-IS374x devices are available in 16-pin narrow body SOIC and 16-pin wide body SOIC packages. All products have > 2.5kVrms isolation rating, and products in wide-body packages support insulation withstanding up to 5kVrms. Device Information PART NUMBER CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 PACKAGE BODY SIZE(NOM) SOIC16-NB (N) 9.90 mm × 3.90 mm SOIC16-WB(W) 10.30 mm × 7.50 mm Simplified Channel Structure Channel A side Schmitt Trigger Isolation Barrrier Channel B side Mixer VIN Driver VOUT Driver RX GNDA GNDB Channel A side and B side are separated by isolation capacitors. GNDA and GNDB are the isolated ground for signals and supplies of A side and B side respectively. CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 4 www.chipanalog.com Ordering Guide Table 4-1 Ordering Guide for Valid Ordering Part Number Ordering Part Number Number of Inputs A Side Number of Inputs B Side Default Output Isolation Rating (kV) Output Enable Package CA-IS3740LN 4 0 Low 2.5 Yes NB SOIC-16 CA-IS3740LW 4 0 Low 5 Yes WB SOIC-16 CA-IS3740HN 4 0 High 2.5 Yes NB SOIC-16 CA-IS3740HW 4 0 High 5 Yes WB SOIC-16 CA-IS3741LN 3 1 Low 2.5 Yes NB SOIC-16 CA-IS3741LW 3 1 Low 5 Yes WB SOIC-16 CA-IS3741HN 3 1 High 2.5 Yes NB SOIC-16 CA-IS3741HW 3 1 High 5 Yes WB SOIC-16 CA-IS3742LN 2 2 Low 2.5 Yes NB SOIC-16 CA-IS3742LW 2 2 Low 5 Yes WB SOIC-16 CA-IS3742HN 2 2 High 2.5 Yes NB SOIC-16 CA-IS3742HW 2 2 High 5 Yes WB SOIC-16 CA-IS3745LN 4 0 Low 2.5 No NB SOIC-16 CA-IS3745LW 4 0 Low 5 No WB SOIC-16 CA-IS3745HN 4 0 High 2.5 No NB SOIC-16 CA-IS3745HW 4 0 High 5 No WB SOIC-16 Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com Preview Version Table of Contents 1 2 3 4 5 6 7 Key Features ........................................................1 Applications .........................................................1 Description ..........................................................1 Ordering Guide ....................................................2 Revision History ...................................................3 PIN Descriptions and Functions ............................4 Specifications .......................................................5 7.1 7.2 7.3 7.4 7.5 7.6 7.7 5 Absolute Maximum Ratings ............................... 5 ESD Ratings.......................................................... 5 Recommended Operating Conditions ................. 5 Thermal Information ........................................... 6 Power Rating ....................................................... 6 Electrical Characteristics ..................................... 7 1 7.6.1 7.6.2 7.6.3 VDDA = VDDB = 5 V ± 10%, TA = -40 to 125°C.......... 7 VDDA = VDDB = 3.3 V ± 10%, TA = -40 to 125°C....... 7 VDDA = VDDB = 2.5 V ± 5%, TA = -40 to 125°C......... 7 Supply Current Characteristics ............................ 8 7.8 8 9 7.7.1 7.7.2 7.7.3 VDDA = VDDB = 5 V ± 10%, TA = -40 to 125°C ......... 8 VDDA = VDDB = 3.3 V ± 10%, TA = -40 to 125°C ...... 9 VDDA = VDDB = 2.5 V ± 5%, TA = -40 to 125°C ...... 10 7.8.1 7.8.2 7.8.3 VDDA = VDDB = 5 V ± 10%, TA = -40 to 125°C ....... 11 VDDA = VDDB = 3.3 V ± 10%, TA = -40 to 125°C .... 11 VDDA = VDDB = 2.5 V ± 5%, TA = -40 to 125°C ...... 12 Timing Characteristics ....................................... 11 Parameter Measurement Information ................ 13 Detailed Description ..........................................15 9.1 9.2 9.3 Theory of Operation ......................................... 15 Functional Block Diagram ................................. 15 Device Operation Modes .................................. 16 10 Application and Implementation ........................17 11 Package Information ..........................................18 11.1 16-Pin Wide Body SOIC Package Outline and Recommended Land Pattern .......................................... 18 11.2 16-Pin Narrow Body SOIC Package Outline....... 19 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. This is a preview version, initialized on July 23rd 2018. Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 6 PIN Descriptions and Functions www.chipanalog.com CA-IS3740 16-Pin SOIC NB/WB Top View VDDA TX A2 TX A3 TX A4 TX NC VDDA GNDB GNDA RX B1 A1 TX RX B2 A2 TX RX B3 A3 TX RX B4 A4 RX ENB ENA GNDB GNDA GNDA CA-IS3742 16-Pin SOIC NB/WB Top View VDDA TX A2 TX A3 RX A4 RX ENA GNDA GNDB RX B1 RX B2 RX B3 TX B4 ENB GNDB CA-IS3745 16-Pin SOIC NB/WB Top View VDDB VDDA GNDB GNDA RX B1 A1 TX RX B2 A2 TX TX B3 A3 TX TX B4 A4 TX ENB NC GNDB GNDA VDDB ISOLATION BARRIER A1 ISOLATION BARRIER GNDA VDDB ISOLATION BARRIER A1 ISOLATION BARRIER GNDA CA-IS3741 16-Pin SOIC NB/WB Top View VDDB GNDB RX B1 RX B2 RX B3 RX B4 NC GNDB Figure 6-1 CA-IS374x Top View Table 6-1 CA-IS374x Pin Description and Functions Name VDDA GNDA A1 A2 A3 A4 NC1/ENA GNDA GNDB NC1/ENB B4 B3 B2 B1 GNDB VDDB SOIC-16 Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Type Supply Ground Digital Input Digital Input Digital I/O Digital I/O Digital Input Ground Ground Digital Input Digital I/O Digital I/O Digital Output Digital Output Ground Supply Description Side A Power Supply Side A Ground Side A Digital Input Side A Digital Input Side A Digital Input for CA-IS3740/41/45 or Output for CA-IS3742 Side A Digital Input for CA-IS3740/45 or Output for CA-IS3741/42 Side A Active High Enable. NC for CA-IS3740/45 Side A Ground Side B Ground Side B Active High Enable. NC for CA-IS3745 Side B Digital Input for CA-IS3741/42 or Output for CA-IS3740/45 Side B Digital Input for CA-IS3742 or Output for CA-IS3740/41/45 Side B Digital Output Side B Digital Output Side B Ground Side B Power Supply Note: 1. No Connect. These pins are not internally connected. They can be left floating, tied to VDD or tied to GND Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com 7 Specifications 7.1 Preview Version Absolute Maximum Ratings1 MIN MAX UNIT VDDA, VDDB Supply Voltage2 -0.5 6.0 V Vin Voltage at Ax, Bx, ENx -0.5 VDDA+0.53 V IO Output Current 15 15 mA TJ Junction Temperature 150 °C TSTG Storage Temperature -65 150 °C NOTE: 1. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. All voltage values except differential I/O bus voltages are with respect to the local ground terminal (GNDA or GNDB) and are peak voltage values. 3. Maximum voltage must not exceed 6 V. 7.2 ESD Ratings VESD Electrostatic discharge pins1 Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all Charged device model (CDM), per JEDEC specification JESD22-C101, all pins2 VALUE 2000 200 UNIT V NOTE: 1. JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. 2. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions VDDA, VDDB VDD(UVLO+) Supply Voltage VDD Undervoltage Threshold When Supply Voltage is Rising MIN 2.375 1.95 TYP 3.3 2.24 MAX 5.5 2.375 UNIT V V VDD(UVLO-) VDD Undervoltage Threshold When Supply Voltage is Falling 1.88 2.16 2.325 V VHYS(UVLO) VDD Undervoltage Threshold Hysteresis 50 70 95 IOH High-level Output Current IOL Low-level Output Current VIH High-level Input Voltage VIL Low-level Input Voltage DR Data Rate TA Ambient Temperature NOTE: 1. VDDO = Output-side VDD Copyright © 2018, ChipAnalog Incorporated VDDO1 = 5V VDDO = 3.3V VDDO = 2.5V VDDO = 5V VDDO = 3.3V VDDO = 2.5V -4 -2 -1 mA 4 2 2 2.0 0 -40 mV 27 0.8 150 125 mA V V Mbps °C CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 7.4 Thermal Information www.chipanalog.com THERMAL METRIC N (SOIC) 16 Pins CA-IS374x W (SOIC) 16 Pins UNIT RθJA RθJC(top) RθJB ψJT Junction-to-ambient thermal resistance Junction-to-case(top) thermal resistance Junction-to-board thermal resistance Junction-to-top characterization parameter ψJB Junction-to-board characterization parameter °C/W RθJC(bottom) Junction-to-case(bottom) thermal resistance °C/W 7.5 °C/W °C/W °C/W °C/W Power Rating PARAMETER CA-IS3740/45 PD Maximum Power Dissipation PDA Maximum Power Dissipation on Side-A PDB Maximum Power Dissipation on Side-B CA-IS3741 PD Maximum Power Dissipation PDA Maximum Power Dissipation on Side-A PDB Maximum Power Dissipation on Side-B CA-IS3742 PD Maximum Power Dissipation PDA Maximum Power Dissipation on Side-A PDB Maximum Power Dissipation on Side-B TEST CONDITIONS MIN TYP MAX UNIT 200 40 160 mW mW mW TJ = 150°C, Input a 75-MHz 50% duty cycle square wave 200 50 150 mW mW mW VDDA = VDDB = 5.5 V, CL = 15 pF, TJ = 150°C, Input a 75-MHz 50% duty cycle square wave 200 100 100 mW mW mW VDDA = VDDB = 5.5 V, CL = 15 pF, TJ = 150°C, Input a 75-MHz 50% duty cycle square wave VDDA = VDDB = 5.5 V, CL = 15 pF, Copyright © 2018, ChipAnalog Incorporated www.chipanalog.com 7.6 Electrical Characteristics 7.6.1 VDDA = VDDB = 5 V ± 10%, TA = -40 to 125°C VOH VOL VIT+(IN) VIT-(IN) VI(HYS) IIH IIL ZO CMTI CI PARAMETER High-level Output Voltage Low-level Output Voltage Positive-going Input Threshold Negative-going Input Threshold Input Threshold Hysteresis High-Level Input Leakage Current Low-Level Input Leakage Current Output Impedance2 Common-mode Transient Immunity Input Capacitance3 NOTE: 1. 2. 3. TEST CONDITIONS IOH = -4mA; See Figure 8-2 IOL = 4mA; See Figure 8-2 VIH = VDDA at Ax or Bx or ENx VIL = 0 V at Ax or Bx VI = VDDI1 or 0 V, VCM = 1200 V; See Figure 8-4 VI = VDD/ 2 + 0.4×sin(2πft), f = 1 MHz, VDD = 5 V CA-IS3740, CA-IS3741, CA-IS3742 Preview Version MIN TYP VDDO1-0.4 4.8 0.2 1.4 1.67 1.0 1.23 0.38 0.44 MAX 0.4 1.9 1.4 0.5 10 -10 85 50 100 2 UNIT V V V V V µA µA Ω kV/µS pF VDDI = Input-side VDD, VDDO = Output-side VDD The nominal output impedance of an isolator driver channel is approximately 50 Ω ± 40%. Measured from pin to Ground. 7.6.2 VDDA = VDDB = 3.3 V ± 10%, TA = -40 to 125°C VOH VOL VIT+(IN) VIT-(IN) VI(HYS) IIH IIL ZO CMTI CI PARAMETER High-level Output Voltage Low-level Output Voltage Positive-going Input Threshold Negative-going Input Threshold Input Threshold Hysteresis High-Level Input Leakage Current Low-Level Input Leakage Current Output Impedance2 Common-mode Transient Immunity Input Capacitance3 TEST CONDITIONS IOH = -4mA; See Figure 8-2 IOL = 4mA; See Figure 8-2 VIH = VDDA at Ax or Bx or ENx VIL = 0 V at Ax or Bx VI = VDDI1 or 0 V, VCM = 1200 V; See Figure 8-4 VI = VDD/ 2 + 0.4×sin(2πft), f = 1 MHz, VDD = 3.3 V MIN TYP VDDO1-0.4 3.1 0.2 1.4 1.67 1.0 1.23 0.38 0.44 MAX 0.4 1.9 1.4 0.5 10 -10 85 50 100 2 UNIT V V V V V µA µA Ω kV/µs pF NOTE: 1. VDDI = Input-side VDD, VDDO = Output-side VDD 2. The nominal output impedance of an isolator driver channel is approximately 50 Ω ± 40%. 3. Measured from pin to Ground. 7.6.3 VDDA = VDDB = 2.5 V ± 5%, TA = -40 to 125°C VOH VOL VIT+(IN) VIT-(IN) VI(HYS) IIH IIL ZO CMTI CI PARAMETER High-level Output Voltage Low-level Output Voltage Positive-going Input Threshold Negative-going Input Threshold Input Threshold Hysteresis High-Level Input Leakage Current Low-Level Input Leakage Current Output Impedance2 Common-mode Transient Immunity Input Capacitance3 TEST CONDITIONS IOH = -4mA; See Figure 8-2 IOL = 4mA; See Figure 8-2 VIH = VDDA at Ax or Bx or ENx VIL = 0 V at Ax or Bx VI = VDDI1 or 0 V, VCM = 1200 V; See Figure 8-4 VI = VDD/ 2 + 0.4×sin(2πft), f = 1 MHz, VDD = 2.5 V NOTE: 1. VDDI = Input-side VDD, VDDO = Output-side VDD 2. The nominal output impedance of an isolator driver channel is approximately 50 Ω ± 40%. 3. Measured from pin to Ground. Copyright © 2018, ChipAnalog Incorporated MIN TYP VDDO1-0.4 2.3 0.2 1.4 1.67 1.0 1.23 0.38 0.44 -10 85 50 100 2 MAX 0.4 1.9 1.4 0.5 10 UNIT V V V V V µA µA Ω kV/µS pF CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 7.7 Supply Current Characteristics 7.7.1 VDDA = VDDB = 5 V ± 10%, TA = -40 to 125°C PARAMETER CA-IS3740/45 Supply Current – Disable1 Supply Current – DC Signal Supply Current – AC Signal CA-IS3741 Supply Current – Disable Supply Current – DC Signal Supply Current – AC Signal CA-IS3742 Supply Current – Disable Supply Current – DC Signal Supply Current – AC Signal www.chipanalog.com SUPPLY CURRENT TEST CONDITION ENB2 = 0 V; VIN = 0V (CA-IS3740L); VIN = VDDA (CA-IS3740H) ENB = 0 V; VIN = VDDA (CA-IS3740L); VIN = 0V(CA-IS3740H) ENB = VDDB; VIN = 0V (CA-IS3740/45L); VIN = VDDA (CA-IS3740/45H) ENB = VDDB; VIN = VDDA (CA-IS3740/45L); VIN = 0V(CA-IS3740/45H) ENB = VDDB; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel MAX UNIT 1.6 3.8 9.2 4.0 1.6 3.8 9.2 4.0 5.0 4.0 5.0 5.6 5.0 22.8 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) 1.0 2.4 6.1 2.5 1.0 2.4 6.1 2.5 3.6 2.9 3.6 4.0 3.6 17.5 1.4 2.3 5.2 3.6 1.4 2.3 5.2 3.6 3.4 3.3 3.7 4.1 7.3 14.3 2.2 3.7 7.8 5.4 2.2 3.7 7.8 5.4 4.8 4.6 5.2 5.8 9.8 18.5 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB 1.8 1.8 4.4 4.4 1.8 1.8 4.4 4.4 3.3 3.3 3.9 3.9 11 11 2.9 2.9 6.6 6.6 2.9 2.9 6.6 6.6 4.6 4.6 5.4 5.4 14.3 14.3 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB ENA = ENB = 0 V; VIN = 0V (CA-IS3742L); VIN = VDDI3 (CA-IS3742H) ENA = ENB = 0 V; VIN = VDDI (CA-IS3742L); VIN = 0V(CA-IS3742H) ENA = ENB = VDDI; VIN = 0V (CA-IS3742L); VIN = VDDI (CA-IS3742H) ENA = ENB = VDDI; VIN = VDDI (CA-IS3742L); VIN = 0V(CA-IS3742H) ENA = ENB = VDDI; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel TYP IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB ENA = ENB = 0 V; VIN = 0V (CA-IS3741L); VIN = VDDI1 (CA-IS3741H) ENA = ENB = 0 V; VIN = VDDI (CA-IS3741L); VIN = 0V(CA-IS3741H) ENA = ENB = VDDI; VIN = 0V (CA-IS3741L); VIN = VDDI (CA-IS3741H) ENA = ENB = VDDI; VIN = VDDI (CA-IS3741L); VIN = 0V(CA-IS3741H) ENA = ENB = VDDI; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel MIN Note: 1. CA-IS3745 device has no disable state. 2. CA-IS3745 device doesn’t have ENB pin but NC pin instead. 3. VDDI = Input-side VDD Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com 7.7.2 VDDA = VDDB = 3.3 V ± 10%, TA = -40 to 125°C PARAMETER CA-IS3740/45 Supply Current – Disable1 Supply Current – DC Signal Supply Current – AC Signal CA-IS3741 Supply Current – Disable Supply Current – DC Signal Supply Current – AC Signal CA-IS3742 Supply Current – Disable Supply Current – DC Signal Supply Current – AC Signal Preview Version SUPPLY CURRENT TEST CONDITION ENB2 = 0 V; VIN = 0V (CA-IS3740L); VIN = VDDA (CA-IS3740H) ENB = 0 V; VIN = VDDA (CA-IS3740L); VIN = 0V(CA-IS3740H) ENB = VDDB; VIN = 0V (CA-IS3740/45L); VIN = VDDA (CA-IS3740/45H) ENB = VDDB; VIN = VDDA (CA-IS3740/45L); VIN = 0V(CA-IS3740/45H) ENB = VDDB; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel Note: 1. CA-IS3745 device has no disable state. 2. CA-IS3745 device doesn’t have ENB pin but NC pin instead. 3. VDDI = Input-side VDD Copyright © 2018, ChipAnalog Incorporated MAX UNIT 1.6 3.8 9.2 4.0 1.6 3.8 9.2 4.0 5.0 4.0 5.0 4.7 5.0 15.9 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) 1.0 2.4 6.1 2.5 1.0 2.4 6.1 2.5 3.6 2.9 3.6 3.4 3.6 12.3 1.4 2.3 5.2 3.6 1.4 2.3 5.2 3.6 3.4 3.3 3.5 3.6 5.9 10.3 2.2 3.7 7.8 5.4 2.2 3.7 7.8 5.4 4.8 4.6 4.9 5.1 7.9 13.4 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB 1.8 1.8 4.4 4.4 1.8 1.8 4.4 4.4 3.3 3.3 3.6 3.6 8.2 8.2 2.9 2.9 6.6 6.6 2.9 2.9 6.6 6.6 4.6 4.6 5.0 5.0 10.7 10.7 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB ENA = ENB = 0 V; VIN = 0V (CA-IS3742L); VIN = VDDI3 (CA-IS3742H) ENA = ENB = 0 V; VIN = VDDI (CA-IS3742L); VIN = 0V(CA-IS3742H) ENA = ENB = VDDI; VIN = 0V (CA-IS3742L); VIN = VDDI (CA-IS3742H) ENA = ENB = VDDI; VIN = VDDI (CA-IS3742L); VIN = 0V(CA-IS3742H) ENA = ENB = VDDI; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel TYP IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB ENA = ENB = 0 V; VIN = 0V (CA-IS3741L); VIN = VDDI1 (CA-IS3741H) ENA = ENB = 0 V; VIN = VDDI (CA-IS3741L); VIN = 0V(CA-IS3741H) ENA = ENB = VDDI; VIN = 0V (CA-IS3741L); VIN = VDDI (CA-IS3741H) ENA = ENB = VDDI; VIN = VDDI (CA-IS3741L); VIN = 0V(CA-IS3741H) ENA = ENB = VDDI; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel MIN CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 7.7.3 VDDA = VDDB = 2.5 V ± 5%, TA = -40 to 125°C PARAMETER CA-IS3740/45 Supply Current – Disable1 Supply Current – DC Signal Supply Current – AC Signal CA-IS3741 Supply Current – Disable Supply Current – DC Signal Supply Current – AC Signal CA-IS3742 Supply Current – Disable Supply Current – DC Signal Supply Current – AC Signal www.chipanalog.com SUPPLY CURRENT TEST CONDITION ENB2 = 0 V; VIN = 0V (CA-IS3740L); VIN = VDDA (CA-IS3740H) ENB = 0 V; VIN = VDDA (CA-IS3740L); VIN = 0V(CA-IS3740H) ENB = VDDB; VIN = 0V (CA-IS3740/45L); VIN = VDDA (CA-IS3740/45H) ENB = VDDB; VIN = VDDA (CA-IS3740/45L); VIN = 0V(CA-IS3740/45H) ENB = VDDB; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel MAX UNIT 1.6 3.8 9.2 4.0 1.6 3.8 9.2 4.0 5.0 4.0 5.0 4.3 5.0 12.8 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) 1.0 2.4 6.1 2.5 1.0 2.4 6.1 2.5 3.6 2.9 3.6 3.1 3.6 9.9 1.4 2.3 5.2 3.6 1.4 2.3 5.2 3.6 3.4 3.3 3.5 3.4 5.2 8.5 2.2 3.7 7.8 5.4 2.2 3.7 7.8 5.4 4.8 4.6 4.8 4.8 7.0 11.1 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB 1.8 1.8 4.4 4.4 1.8 1.8 4.4 4.4 3.3 3.3 3.4 3.4 6.9 6.9 2.9 2.9 6.6 6.6 2.9 2.9 6.6 6.6 4.6 4.6 4.8 4.8 9.0 9.0 mA 1Mbps (500kHz) 10Mbps (5MHz) 100Mbps (50MHz) IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB ENA = ENB = 0 V; VIN = 0V (CA-IS3742L); VIN = VDDI3 (CA-IS3742H) ENA = ENB = 0 V; VIN = VDDI (CA-IS3742L); VIN = 0V(CA-IS3742H) ENA = ENB = VDDI; VIN = 0V (CA-IS3742L); VIN = VDDI (CA-IS3742H) ENA = ENB = VDDI; VIN = VDDI (CA-IS3742L); VIN = 0V(CA-IS3742H) ENA = ENB = VDDI; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel TYP IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB IDDA IDDB ENA = ENB = 0 V; VIN = 0V (CA-IS3741L); VIN = VDDI1 (CA-IS3741H) ENA = ENB = 0 V; VIN = VDDI (CA-IS3741L); VIN = 0V(CA-IS3741H) ENA = ENB = VDDI; VIN = 0V (CA-IS3741L); VIN = VDDI (CA-IS3741H) ENA = ENB = VDDI; VIN = VDDI (CA-IS3741L); VIN = 0V(CA-IS3741H) ENA = ENB = VDDI; All Channels Switching with 50% Duty Cycle Square Wave Clock Input with 5V Amplitude; CL = 15 pF for Each Channel MIN Note: 1. CA-IS3745 device has no disable state. 2. CA-IS3745 device doesn’t have ENB pin but NC pin instead. 3. VDDI = Input-side VDD Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com 7.8 Timing Characteristics 7.8.1 VDDA = VDDB = 5 V ± 10%, TA = -40 to 125°C DR PWmin tPLH, tPHL PWD tsk(o) tsk(pp) tr tf tJIT(PK) tPHZ tPLZ PARAMETER Data Rate Minimum Pulse Width Propagation Delay Time Pulse Width Distortion |tPLH - tPHL| Channel-to-channel Output Skew Time1 Part-to-part Skew Time2 Output Signal Rise Time Output Signal Fall Time Peak Eye Diagram Jitter Disable Propagation Delay, High to High Impedance Output Disable Propagation Delay, Low to High Impedance Output tPZH Enable Propagation Delay, High Impedance to High Output tPZL Enable Propagation Delay, High Impedance to Low Output tDO tie Default Output Delay Time from Input Power Loss Time interval error Preview Version TEST CONDITIONS See Figure 8-1 Same-direction channels See Figure 8-1 See Figure 8-1 CA-IS374xL CA-IS374xH CA-IS374xL CA-IS374xH See Figure 8-2 See Figure 8-3 216 – 1 PRBS 100Mbps data MIN TYP MAX 0 150 5.0 5.0 8.0 13.0 0.2 4.5 0.4 2.5 2.0 4.5 2.5 4.0 2.5 4.0 350 8 12 8 12 6 11 6 8 0.7 11 12 UNIT Mbps ns ns ns ns ns ns ns ps ns ns ns ns ns ns ns ns tSU Start-up Time 15 40 µs NOTE: 1. tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. 2. tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. 7.8.2 VDDA = VDDB = 3.3 V ± 10%, TA = -40 to 125°C DR PWmin tPLH, tPHL PWD tsk(o) tsk(pp) tr tf tJIT(PK) tPHZ tPLZ PARAMETER Data Rate Minimum Pulse Width Propagation Delay Time Pulse Width Distortion |tPLH - tPHL| Channel-to-channel Output Skew Time1 Part-to-part Skew Time2 Output Signal Rise Time Output Signal Fall Time Peak Eye Diagram Jitter Disable Propagation Delay, High to High Impedance Output Disable Propagation Delay, Low to High Impedance Output tPZH Enable Propagation Delay, High Impedance to High Output tPZL Enable Propagation Delay, High Impedance to Low Output tDO tie Default Output Delay Time from Input Power Loss Time interval error TEST CONDITIONS See Figure 8-1 Same-direction channels See Figure 8-1 See Figure 8-1 CA-IS374xL CA-IS374xH CA-IS374xL CA-IS374xH See Figure 8-2 See Figure 8-3 216 – 1 PRBS 100Mbps data MIN TYP MAX 0 150 5.0 5.0 8.0 13.0 0.2 4.5 0.4 2.5 2.0 4.5 2.5 4.0 2.5 4.0 350 8 12 8 12 6 11 6 8 0.7 11 12 UNIT Mbps ns ns ns ns ns ns ns ps ns ns ns ns ns ns ns ns tSU Start-up Time 15 40 µs NOTE: 1. tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. 2. tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 7.8.3 VDDA = VDDB = 2.5 V ± 5%, TA = -40 to 125°C DR PWmin tPLH, tPHL PWD tsk(o) tsk(pp) tr tf tJIT(PK) tPHZ tPLZ PARAMETER Data Rate Minimum Pulse Width Propagation Delay Time Pulse Width Distortion |tPLH - tPHL| Channel-to-channel Output Skew Time1 Part-to-part Skew Time2 Output Signal Rise Time Output Signal Fall Time Peak Eye Diagram Jitter Disable Propagation Delay, High to High Impedance Output Disable Propagation Delay, Low to High Impedance Output tPZH Enable Propagation Delay, High Impedance to High Output tPZL Enable Propagation Delay, High Impedance to Low Output tDO tie Default Output Delay Time from Input Power Loss Time interval error www.chipanalog.com TEST CONDITIONS See Figure 8-1 Same-direction channels See Figure 8-1 See Figure 8-1 CA-IS374xL CA-IS374xH CA-IS374xL CA-IS374xH See Figure 8-2 See Figure 8-3 216 – 1 PRBS 100Mbps data MIN TYP MAX 0 150 5.0 5.0 8.0 13.0 0.2 5.0 0.4 2.5 2.0 5.0 2.5 4.0 2.5 4.0 350 8 12 8 12 6 11 6 8 0.7 11 12 UNIT Mbps ns ns ns ns ns ns ns ps ns ns ns ns ns ns ns ns tSU Start-up Time 15 40 µs NOTE: 1. tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. 2. tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 Isolation Barrier www.chipanalog.com 8 Parameter Measurement Information IN VIN1 Preview Version OUT VOUT VIN 50% tPHL tPLH CL2 50Ω 50% 90% VOUT 50% 50% 10% tf tr NOTE: 1. A square wave generator generate the VIN input signal with the following constraints: waveform frequency ≤ 100kHz, 50% duty cycle, tr≤3ns, tf≤3ns. Since the waveform generator has an output impedance of Zout = 50Ω, the 50Ω resistor in the figure is used for matching. There is no need in the actual application. 2. CL is the load capacitance about 15pF together with the instrumentation capacitance. Since the load capacitance influence the output rising time, it’s a key factor in the timing characteristic measurement. Figure 8-1 Timing Characteristics Test Circuit and Voltage Waveforms GNDI Isolation Barrier VDDO IN VEN1 VEN VOUT 2V 2V tPZL tPLZ EN 50Ω Isolation Barrier IN OUT CL2 VEN1 VDDI VDDO 1kΩ VOUT 50% VOL =0.4V VDDO OUT VEN VOUT 2V 2V tPZH tPHZ EN CL2 50Ω 1kΩ VOUT 50% VOH = VDDO - 0.4V NOTE: 1. A square wave generator generate the VEN input signal with the following constraints: waveform frequency ≤ 100kHz, 50% duty cycle, tr≤3ns, tf≤3ns. Since the waveform generator has an output impedance of Zout = 50Ω, the 50Ω resistor in the figure is used for matching. There is no need in the actual application. 2. CL is the load capacitance about 15pF together with the instrumentation capacitance. Since the load capacitance influence the output rising time, it’s a key factor in the timing characteristic measurement. Figure 8-2 Enable/Disable Propagation Delay Time Test Circuit and Waveform Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version VDDI1 www.chipanalog.com VDDO VDDI VDDO IN = 0 V for CA-IS374xH IN = VDDI for CA-IS374xL IN Isolation Barrier 2.15V OUT 0V VOUT tDO Default High for CA-IS374xH CL2 VOH VOUT 50% Default Low for CA-IS374xL VOL NOTE: 1. Power Supply Ramp Rate = 10 mV/ns. VDDI should ramp over 2.15V but no higher than 5.5V. 2. CL is the load capacitance about 15pF together with the instrumentation capacitance. Since the load capacitance influence the output rising time, it’s a key factor in the timing characteristic measurement. Figure 8-3 Default Output Delay Time Test Circuit and Voltage Waveforms IN CBP4 VDDO Isolation Barrier VDDI OUT VOUT3 CBP4 CL2 GNDA High Voltage Surge Generator1 GNDB NOTE: 1. The High Voltage Surge Generator generates repetitive high voltage surges with > 1kV amplitude and 100kV/μs slew rate. 2. CL is the load capacitance about 15pF together with the instrumentation capacitance. 3. Pass-fail criteria: The output must remain stable whenever the high voltage surges come. 4. CBP is the 0.1 ~ 1uF bypass capacitance. Figure 8-4 Common-Mode Transient Immunity Test Circuit Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com 9 Detailed Description Preview Version 9.1 Theory of Operation The CA-IS374x family of devices use a simple ON-OFF keying (OOK) modulation scheme to transmit signal across the SiO2 isolation capacitors that provide a robust insulation between two different voltage domain and act as a high frequency signal path between the input and the output. The transmitter (TX) modulates the input signal onto the carrier frequency, that is, TX delivers high frequency signal across the isolation barrier in one input state and delivers no signal across the barrier in the other input state. Then the receiver rebuilds the input signal according to the detected in-band energy. If the ENx pin is low then the output goes to high impedance state and will be pulled up to VDDO (CA-IS374xH) or pull down to the corresponding GND (CAIS374xL). This simple architecture offers a robust isolated data path and requires no special considerations or initialization at start-up. The capacitor-based signal path is fully differential to maximize noise immunity, which is also known as common-mode transient immunity. Advanced circuitry techniques are applied for better EMI introduced by the carrier signal and IO switching. The capacitively-coupled architecture provides much higher electromagnetic immunity compared to the inductively-coupled one. And OOK modulation scheme eliminates the missing-pulse error that occurs in the pulse modulation method. A simplified functional block diagram and conceptual operation waveforms of a single channel is shown in Figure 9-1 and Figure 9-2. 9.2 Functional Block Diagram Isolation Barrier Transmitter (TX) Receiver (RX) Schmitt Trigger Driver VIN Modulator Demodulator RF Carrier Generator EN Figure 9-1 Functional Block Diagram of a Single Channel VIN Signal through isolation barrier VOUT Figure 9-2 Conceptual Operation Waveforms of a Single Channel Copyright © 2018, ChipAnalog Incorporated VOUT CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 9.3 Device Operation Modes Table 9-1 provides the operation modes for the CA-IS374x devices. www.chipanalog.com Table 9-1 Operation Mode Table1 VDDI VDDO PU PU INPUT(Ax/Bx)2 H L OUTPUT ENABLE(ENx)3,4 H or Open H or Open OUTPUT (Ax/Bx) H L Open H or Open Default X PU X L Z PD PU X H or Open Default X PD X X Undetermined OPERATION Normal operation mode: A channel’s output follows the input state Default output fail-safe mode: If a channel’s input is left open, its output goes to the default value (Low for CA-IS374xL and High for CA-IS374xH). High impedance mode: If Enable pin is tied to low, the output will be in high-Z mode Default output fail-safe mode: If the input side VDD is unpowered, the outputs go in to the default output fail-safe mode (Low for CA-IS374xL and High for CA-IS374xH) If the output side VDD is unpowered, the outputs’ states are undetermined.5 NOTE: 1. VDDI = Input-side VDD; VDDO = Output-side VDD; PU = Powered up (VCC ≥ 2.375 V); PD = Powered down (VCC ≤ 2.25 V); X = Irrelevant; H = High level; L = Low level; Z = High Impedance. 2. A strongly driven input signal can weakly power the floating VDD through an internal protection diode and cause undetermined output. 3. It is recommended that the enable inputs be connected to an external logic high or low level when the CA-IS374x is operating in noisy environments. 4. No Connect (NC) replaces ENA on CA-IS3740/45. No Connect replaces EN2 on the CA-IS3745. No Connects are not internally connected and can be left floating, tied to VDD, or tied to GND. 5. The outputs are in undetermined state when 2.25V < VDDI, VDDO < 2.375 V. Table 9-2 provides the Enable input truth table for the CA-IS374x devices. Table 9-2 Enable Input Truth Table PART NUMBER CA-IS3740 CA-IS3741 CA-IS3742 ENA1,2 — ENB1,2 H OPERATION Outputs B1, B2, B3, B4 are enabled and follow the input state. — L Outputs B1, B2, B3, B4 are disabled and in high impedance state. H L X X H L X X — X X H L X X H L — Output A4 enabled and follows the input state. Output A4 disabled and in high impedance state. Outputs B1, B2, B3 are enabled and follow the input state. Outputs B1, B2, B3 are disabled and in high impedance state. Outputs A3 and A4 are enabled and follow the input state. Outputs A3 and A4 are disabled and in high impedance state. Outputs B1 and B2 are enabled and follow the input state. Outputs B1 and B2 are disabled and in high impedance state. Outputs B1, B2, B3, B4 are enabled and follow the input state. CA-IS3745 NOTE: 1. Enable inputs ENA and ENB can be used for multiplexing, for clock sync, or other output control. ENA, ENB logic operation is summarized for each isolator product in Table 9-2. These inputs are internally pulled-up to local VDD allowing them to be connected to an external logic level (high or low) or left floating. To minimize noise coupling, do not connect circuit traces to ENA or ENB if they are left floating. If ENA, ENB are unused, it is recommended they be connected to an external logic level, especially if the CA-IS374x is operating in a noisy environment. 2. X = Irrelevant; H = High level; L = Low level. Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com Preview Version 10 Application and Implementation Unlike optocouplers, which need external components to improve performance, provide bias, or limit current, the CA-IS374x family device CMOS digital isolator needs only two external VDD bypass capacitors (0.1μF to 1 μF) to operate. Its TTL level compatible input terminals draw only micro amps of leakage current, allowing them to be driven without external buffering circuits. The output terminals have a characteristic impedance of 50 Ω (rail-to-rail swing) and are available in both forward and reverse channel configurations. Figure 10-1 shows the typical application of CA-IS3742 device. And the circuit of Figure 10-2 is typical for most applications of CA-IS37xx series products and is as easy to use as a standard logic gate. VDD1 0.1uF VDD2 2mm maximum from VDDA 0.1uF 2mm maximum from VDDB VDDA VDDB IN1 A1 TX IN2 A2 TX OUT3 A3 RX OUT4 A4 RX ENA ISOLATION BARRIER GNDA GNDB RX B1 OUT1 RX B2 OUT2 TX B3 IN3 TX B4 IN4 ENB GNDA GNDB Figure 10-1 Typical Application Circuit of CA-IS3742 VDD1 CA-IS37xx Series Products VDDA VDD2 VDDB 0.1uF 0.1uF IN1 A1 TX INm-1 Am-1 TX OUTm Am RX OUTn An RX ISOLATION BARRIER GNDA GNDB B1 RX Bm-1 TX Bm INm TX Bn INn Figure 10-2 CA-IS37xx Series Digital Isolator Application Schematic Copyright © 2018, ChipAnalog Incorporated OUT1 RX OUTm-1 CA-IS3740, CA-IS3741, CA-IS3742, CA-IS3745 Preview Version 11 Package Information www.chipanalog.com 11.1 16-Pin Wide Body SOIC Package Outline and Recommended Land Pattern The figure below illustrates the package details and the recommended land pattern details for the CA-IS374x digital isolator in a 16-pin wide-body SOIC package. The values for the dimensions are shown in millimeters. 10.40 10.20 0.60 1.27 9 16 2.00 7.60 7.40 10.50 10.10 9.30 PIN I ID 1 8 TOP VIEW RECOMMENDED LAND PATTERN 1.07 0.97 2.35 2.25 2.65 0.43 0.35 1.27BSC FRONT VIEW 0.30 0.10 0.85 0.55 8° 0° 1.40REF LEFT-SIDE VIEW Copyright © 2018, ChipAnalog Incorporated CA-IS3740, CA-IS3741, CA-IS3742 www.chipanalog.com Preview Version 11.2 16-Pin Narrow Body SOIC Package Outline The figure below illustrates the package details and the recommended land pattern details for the CA-IS374x digital isolator in a 16-pin narrow-body SOIC package. The values for the dimensions are shown in millimeters. 10.00 9.80 16 0.60 1.27 9 2.00 4.00 3.80 5.40 6.20 5.80 PIN I ID 1 8 TOP VIEW RECOMMENDED LAND PATTERN 0.70 0.60 1.50 1.30 0.50 0.25 1.75 0.47 0.39 1.27BSC 0.225 0.10 0.80 0.50 8° 0° 1.05REF FRONT VIEW Copyright © 2018, ChipAnalog Incorporated LEFT-SIDE VIEW
CA-IS3740LN 价格&库存

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CA-IS3740LN
  •  国内价格
  • 1+5.21640
  • 10+4.22280
  • 30+3.71520
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  • 500+2.92680
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