ZHCSSR6B August   2023  – April 2024 THVD4431

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  ESD Ratings [IEC]
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Thermal Information
    6. 5.6  Power Dissipation
    7. 5.7  Electrical Characteristics
    8. 5.8  Switching Characteristics_RS-485_500kbps
    9. 5.9  Switching Characteristics_RS-485_20Mbps
    10. 5.10 Switching Characteristics, Driver_RS232
    11. 5.11 Switching Characteristics, Receiver_RS232
    12. 5.12 Switching Characteristics_MODE switching
    13. 5.13 Switching Characteristics_RS-485_Termination resistor
    14. 5.14 Switching Characteristics_Loopback mode
    15. 5.15 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Integrated IEC ESD and EFT Protection
      2. 7.3.2 Protection Features
      3. 7.3.3 RS-485 Receiver Fail-Safe Operation
      4. 7.3.4 Low-Power Shutdown Mode
      5. 7.3.5 On-chip Switchable Termination Resistor
      6. 7.3.6 Operational Data Rate
      7. 7.3.7 Diagnostic Loopback
      8. 7.3.8 Integrated Charge pump for RS-232
    4. 7.4 Device Functional Modes
      1. 7.4.1 RS-485 Functionality
      2. 7.4.2 RS-232 Functionality
      3. 7.4.3 Mode Control
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Data Rate and Bus Length for RS-485
        2. 8.2.1.2 Stub Length for RS-485 Network
        3. 8.2.1.3 Bus Loading for RS-485 Network
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

5.7 Electrical Characteristics

over operating free-air temperature range (unless otherwise noted). All typical values are at 25°C and supply voltage of VCC = 5 V, VIO = 3.3 V , unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Driver_RS-485
|VOD| Driver differential output voltage magnitude RL = 60 Ω, –7 V ≤ Vtest ≤ 12 V (See Figure 6-1 ) 1.5 2 V
RL = 60 Ω, –7 V ≤ Vtest ≤ 12 V, 4.5 V ≤ VCC ≤ 5.5 V (See Figure 6-1 ) 2.1 3 V
RL = 100 Ω (See Figure 6-2 ) 2 2.5 V
RL = 54 Ω, 4.5 V ≤ VCC ≤ 5.5 V (See Figure 6-2 ) 2.1 3.3 V
RL = 54 Ω (See Figure 6-2 ) 1.5 3.3 V
Δ|VOD| Change in magnitude of differential output voltage RL = 54 Ω or 100 Ω (See Figure 6-2 ) –50 50 mV
VOC Common-mode output voltage RL = 54 Ω or 100 Ω (See Figure 6-2 ) VCC/2 3 V
ΔVOC(SS) Change in steady-state common-mode output voltage RL = 54 Ω or 100 Ω (See Figure 6-2 ) –50 50 mV
IOS Short-circuit output current (bus terminals) DIR = VIO, -7 V ≤ (VR2 or VR1) ≤ 12 V, or R1 shorted to R2   –250 250 mA
IOZD Driver High impedance output leakage current on R1 and R2 in Full duplex mode MODE2, MODE1, MODE0 = 011 , TERM_TX = GND, DIR = GND, VCC = GND or 5.5V, VO = -7V, +12V -125 125 µA
MODE2, MODE1, MODE0 = 011, TERM_TX = VIO, DIR = GND, VCC = 5.5V, VO = -7V, +12V - 325 350 µA
Receiver_RS-485
II Bus input current (termination disabled) Half and full duplex modes, DIR = 0 V, VCC and VIO = 0 V or 5.5 V VI = 12 V 75 125 μA
VI = –7 V –125 –70 μA
IRXT Receiver bus input leakage current with termination enabled Full duplex mode, VCC and VIO = 5.5 V, TERM_RX = VIO VI = - 7 to 12 V -325 325 μA
VTH+ Positive-going input threshold voltage(1) Over common-mode range of - 7 V to 12 V - 70 - 40 mV
VTH- Negative-going input threshold voltage(1) –200 –150 mV
VHYS Input hysteresis 25 80 mV
CA,B Input differential capacitance Measured between R3 and R4, f = 1 MHz 45 pF
VOH Output high voltage, L2 pin IOH = –4 mA, VIO = 3 to 3.6 V or 4.5 V to 5.5 V VIO – 0.4 VIO – 0.2 V
VOL Output low voltage, L2 pin IOL = 4 mA, VIO = 3 to 3.6 V or 4.5 V to 5.5 V 0.2 0.4 V
VOH Output high voltage, L2 pin IOH = –2 mA, VIO = 1.65 to 1.95 V or 2.25 V to 2.75 V VIO – 0.4 VIO – 0.2 V
VOL Output low voltage, L2 pin IOL = 2 mA, VIO = 1.65 to 1.95 V or 2.25 V to 2.75 V 0.2 0.4 V
IOZ Output high-impedance current, L2 pin VO = 0 V or VIO, DIR = VIO, MODE2, MODE1, MODE0= 010 (half duplex mode) –2 2 µA
Driver_RS-232
VOH High-level output voltage All DOUT (R3, R4, R6) at RL = 3 kΩ to GND, DIN (L3, L4, L6) = GND; VCC = 3 V to 3.6 V 5 5.5 7.2 V
VOL Low-level output voltage All DOUT (R3, R4, R6) at RL = 3 kΩ to GND, DIN (L3, L4, L6) = VIO ; VCC = 3 V to 3.6 V –7.2 –5.5 -5 V
VOH High-level output voltage All DOUT (R3, R4, R6) at RL = 3 kΩ to GND, DIN (L3, L4, L6) = GND; VCC = 4.5 V to 5.5 V 7.8 9 11 V
VOL Low-level output voltage All DOUT (R3, R4, R6) at RL = 3 kΩ to GND, DIN (L3, L4, L6) = VIO ; VCC = 4.5 V to 5.5 V –11 –9 -7.8 V
IOS Short-circuit output current (2) VCC = 3.6 V VO = 0 V ±35 ±60 mA
VCC = 5.5 V VO = 0 V
ro Output resistance on R3, R4, R6 VCC = 0 V, V+ = 0 V, and V– = 0 V VO = ±2 V 300 10M Ω
Ioff Output leakage current on R3, R4, R6 SHDN = GND VO = ±12 V VCC = 3 to 3.6 V ±125 μA
VO = ±10 V VCC = 4.5 to 5.5 V ±125 μA
Receiver_RS-232
VOH High-level output voltage L1/L2/L5/L7/L8 IOH = –4 mA, VIO = 3 to 3.6 V or 4.5 V to 5.5 V     VIO – 0.5 VIO – 0.2 V
IOH = –2 mA, VIO = 1.65 to 1.95 V or 2.25 V to 2.75 V     VIO – 0.48 VIO – 0.2 V
VOL Low-level output voltage L1/L2/L5/L7/L8 IOL = 4 mA, VIO = 3 to 3.6 V or 4.5 V to 5.5 V     0.4 V
IOL = 2 mA, VIO = 1.65 to 1.95 V or 2.25 V to 2.75 V     0.4 V
VIT+ Positive-going input threshold voltage on RS-232 receiver inputs (R1, R2, R5, R7, R8) VCC = 3.3 V 1.6 2.4 V
VCC = 5 V 1.9 2.4 V
VIT– Negative-going input threshold voltage on RS-232 receiver inputs (R1, R2, R5, R7, R8) VCC = 3.3 V 0.6 1.1 V
VCC = 5 V 0.8 1.4 V
Vhys Input hysteresis on receiver inputs (VIT+ – VIT–) 0.4 0.5 V
Ioff Output leakage current on receiver output pins  L1/L2/L5/L7/L8 SHDN = 0 V  ±0.05 ±10 μA
rI Input resistance on receiver input pins -15 V ≤ VI ≤ 15 V 3 5 7 kΩ
Thermal Protection
TSHDN Thermal shutdown threshold Temperature rising 150 170 °C
THYS Thermal shutdown hysteresis 15 °C
Supply
UVVCC (rising) Rising under-voltage threshold on VCC 2.5 2.8 V
UVVCC (falling) Falling under-voltage threshold on VCC 1.9 2.1 V
UVVCC(hys) Hysteresis on under-voltage of VCC 100 400 mV
UVVIO (rising) Rising under-voltage threshold on VIO 1.5 1.6 V
UVVIO (falling) Falling under-voltage threshold on VIO 1.2 1.4 V
UVVIO(hys) Hysteresis on under-voltage of VIO 85 100 mV
ICC_SHDN Supply current in shutdown mode VCC = 4.5 V to 5.5 V, SHDN = GND, All other logic input pins floating, no load on bus, TA ≤ 125 ℃ 5 20 µA
VCC = 3 V to 3.6 V, SHDN = GND, All other logic input pins floating, no load on bus, TA ≤ 125 ℃ 3 15 µA
VCC = 4.5 V to 5.5 V, SHDN = GND, All other logic input pins floating, no load on bus, TA ≤ 105 ℃ 5 15 µA
VCC = 3 V to 3.6 V, SHDN = GND, All other logic input pins floating, no load on bus, TA ≤ 105 ℃ 3 10 µA
IIO_SHDN Logic supply current in shutdown mode VIO = 1.65 V to 5.5 V, SHDN = GND, All other logic input pins floating 2 µA
ICC_485 Supply current (quiescent), VCC = 4.5 V to 5.5 V
TERM_RX, TERM_TX= Floating or low, SLR = X
 		 Driver and receiver enabled, DIR = VIO, MODE2, MODE1, MODE0 = 011 (Full duplex) No load 1.7 3.4 mA
Driver enabled, receiver disabled, DIR = VIO, MODE2, MODE1, MODE0 = 010 (Half duplex) No load 1.3 2.8 mA
Driver disabled, receiver enabled, DIR = GND, MODE2, MODE1, MODE0 = 010 (Half duplex) No load 0.8 1.5 mA
ICC_485 Supply current (quiescent), VCC = 3 V to 3.6 V
TERM_RX, TERM_TX= Floating or low, SLR = X		 Driver and receiver enabled, DIR = VIO, MODE2, MODE1, MODE0 = 011 (Full duplex) No load 1.5 2.8 mA
Driver enabled, receiver disabled, DIR = VIO, MODE2, MODE1, MODE0 = 010 (Half duplex) No load 1 2.3 mA
Driver disabled, receiver enabled, DIR = GND, MODE2, MODE1, MODE0 = 010 (Half duplex) No load 0.7 1.3 mA
IIO_485 Logic supply current (quiescent), VIO = 3 to 3.6 V
TERM_RX, TERM_TX= Floating 
 Driver disabled, Receiver enabled, SLR = GND, DIR = GND; MODE2, MODE1, MODE0 = 010 (half duplex) No load 7 17 µA
Driver disabled, Receiver enabled, SLR = VIO; DIR = GND; MODE2, MODE1, MODE0 = 010 (half duplex) No load 8 21 µA
ICCDT_485 Supply current in RS-485 driver termination mode Driver enabled with termination ON; MODE2, MODE1, MODE0 = 011 (full duplex) DIR= VIO, TERM_TX = VIO 38 50 mA
ICCRT_485 Supply current in RS-485 receiver termination mode Receiver enabled with termination ON; MODE2, MODE1, MODE0 = 011 (full duplex) DIR = GND, TERM_RX = VIO 1 1.5 mA
ICC_RS232 Supply current in RS-232 mode MODE2, MODE1, MODE0 = 001, SHDN = VIO; other logic inputs floating No load 4 6 mA
ICC_RS232_LB Supply current in RS-232 loopback mode MODE2 = x, MODE1 = 0, MODE0 = 0; L3 = L4 = L6 = static logic high, -40 ℃ ≤ TA ≤ 85 ℃ No extra load on RS-232 drivers or on logic output 25 31 mA
ICC_RS485_LB Supply current in RS-485 loopback mode MODE2 = MODE1= MODE0 = VIO ; L3 = static logic high No load on bus or logic output 3 4 mA
On-Chip termination resistor_RS-485
RTERM_TX 120 Ω termination across Driver output R1/R2 terminals MODE2, MODE1, MODE0 = 011 (Full duplex) or 010 (half duplex); DIR = GND, TERM_TX = VIO, VR2R1 = 2 V, VR1 = -7 V, 0 V, 10 V; See Figure 6-9  102 120 138 Ω
RTERM_RX 120 Ω termination across receiver output R3/R4 terminals MODE2, MODE1, MODE0 = 011 (Full duplex); TERM_RX = VIO, VR3R4 = 2 V, VR4 = -7 V, 0 V, 10 V; See Figure 6-9  102 120 138 Ω
Logic
IIN Input current (L3, L4, L6, DIR, SHDN, SLR, TERM_TX, TERM_RX, MODE2, MODE1, MODE0) 1.65 V ≤ VIO ≤ 5.5 V, 0 V ≤ VIN ≤ VIO -20 5 µA
VIT+(IN) Rising threshold: logic inputs 1.65 V ≤ VIO ≤ 5.5 V 0.6*VIO 0.7*VIO V
VIT-(IN) Falling threshold: logic inputs 0.3*VIO 0.4*VIO V
VIN(HYS) Input threshold: logic inputs  0.1*VIO 0.2*VIO V
(1) Under any specific conditions, VTH+ is assured to be at least VHYS higher than VTH–.
(2)
Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one
output should be shorted at a time.
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |