ZHCSDN9A March   2015  – April 2015 ATL431 , ATL432

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Thermal Information
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Electrical Characteristics, ATL431Ax, ATL432Ax
    6. 7.6 Electrical Characteristics, ATL431Bx, ATL432Bx
    7. 7.7 Notes
    8. 7.8 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
      1. 9.4.1 Open Loop (Comparator)
      2. 9.4.2 Closed Loop
  10. 10Applications and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Comparator with Integrated Reference (Open Loop)
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Basic Operation
          2. 10.2.1.2.2 Overdrive
          3. 10.2.1.2.3 Output Voltage and Logic Input Level
            1. 10.2.1.2.3.1 Input Resistance
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Shunt Regulator/Reference
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
          1. 10.2.2.2.1 Programming Output/Cathode Voltage
          2. 10.2.2.2.2 Total Accuracy
          3. 10.2.2.2.3 Stability
        3. 10.2.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 相关链接
    2. 13.2 商标
    3. 13.3 静电放电警告
    4. 13.4 术语表
  14. 14机械、封装和可订购信息

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

7 Specifications

7.1 Absolute Maximum Ratings(1)

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VKA Cathode voltage(2) 40 V
IKA Continuous cathode current range –100 150 mA
II(ref) Reference input current range –0.05 10 mA
TJ Operating virtual junction temperature -40 150 °C
Tstg Storage temperature range –65 150 °C
(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 are with respect to ANODE, unless otherwise noted.

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±1000
(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 Thermal Information

THERMAL METRIC(1) ATL43xx UNIT
DBZ
3 PINS
θJA Junction-to-ambient thermal resistance 331.8 °C/W
θJCtop Junction-to-case (top) thermal resistance 106.5 °C/W
θJB Junction-to-board thermal resistance 64.6 °C/W
ψJT Junction-to-top characterization parameter 4.9 °C/W
ψJB Junction-to-board characterization parameter 62.9 °C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

7.4 Recommended Operating Conditions

MIN MAX UNIT
VKA Cathode voltage Vref 36 V
IKA Cathode current .035 100 mA
TA Operating free-air temperature "I" Grade –40 85 °C
"Q" Grade –40 125

7.5 Electrical Characteristics, ATL431Ax, ATL432Ax

over recommended operating conditions, TA = 25°C (unless otherwise noted)
PARAMETER TEST CIRCUIT TEST CONDITIONS ATL431Ax, ATL432Ax UNIT
MIN TYP MAX
Vref Reference voltage Figure 23 VKA = Vref, IKA = 1 mA 2475 2500 2525 mV
VI(dev) Deviation of reference input voltage over full temperature range, see Notes section Figure 23 VKA = Vref,
IKA = 1 mA, 		ATL43XAI; TA = -40°C to 85°C 5 15 mV
ATL43XAQ; TA = -40°C to 125°C 6 34
ΔVref / ΔVKA Ratio of change in reference voltage to the change in cathode voltage Figure 24 IKA = 1 mA ΔVKA = 10 V − Vref –0.4 –2.7 mV/V
ΔVKA = 36 V − 10 V –0.1 –2
Iref Reference input current Figure 24 IKA = 1 mA, R1 = 10 kΩ, R2 = ∞ 30 150 nA
II(dev) Deviation of reference input current over full temperature range, see Notes section Figure 24 IKA = 1 mA, R1 = 10 kΩ, R2 = ∞ 20 50 nA
Imin Minimum cathode current for regulation Figure 23
Figure 6		 VKA = Vref 20 35 µA
Ioff Off-state cathode current Figure 25 VKA = 36 V, Vref = 0 0.05 0.2 µA
|zKA| Dynamic impedance, see Notes section Figure 23 VKA = Vref, f ≤ 1 kHz, IKA = 1 mA to 100 mA 0.05 0.3 Ω

7.6 Electrical Characteristics, ATL431Bx, ATL432Bx

over recommended operating conditions, TA = 25°C (unless otherwise noted)
PARAMETER TEST CIRCUIT TEST CONDITIONS ATL431Bx, ATL432Bx UNIT
MIN TYP MAX
Vref Reference voltage Figure 23 VKA = Vref, IKA = 1 mA 2487 2500 2512 mV
VI(dev) Deviation of reference input voltage over full temperature range, see Notes section Figure 23 VKA = Vref, IKA = 1 mA ATL43XBI; TA = –40°C to 85°C 5 15 mV
ATL43XBQ; TA = –40°C to 125°C 6 34
ΔVref / ΔVKA Ratio of change in reference voltage to the change in cathode voltage Figure 24 IKA = 1 mA ΔVKA = 10 V − Vref –0.4 –2.7 mV/V
ΔVKA = 36 V − 10 V –0.1 –2
Iref Reference input current Figure 24 IKA = 1 mA, R1 = 10 kΩ, R2 = ∞ 30 150 nA
II(dev) Deviation of reference input current over full temperature range, see Notes section Figure 24 IKA = 1 mA, R1 = 10 kΩ, R2 = ∞ 20 50 nA
Imin Minimum cathode current for regulation Figure 23
Figure 6		 VKA = Vref 20 35 µA
Ioff Off-state cathode current Figure 25 VKA = 36 V, Vref = 0 0.05 0.2 µA
|zKA| Dynamic impedance, see Notes section Figure 23 VKA = Vref, f ≤ 1 kHz, IKA = 1 mA to 100 mA 0.05 0.3 Ω

7.7 Notes

The deviation parameters Vref(dev) and Iref(dev) are defined as the differences between the maximum and minimum values obtained over the rated temperature range. The average full-range temperature coefficient of the reference input voltage αVref is defined as:
ATL431 ATL432 note_aviref_lvs543.gif
αVref is positive or negative, depending on whether minimum Vref or maximum Vref, respectively, occurs at the lower temperature.

The dynamic impedance is defined as: ATL431 ATL432 eq_def_zka.gif
When the device is operating with two external resistors (see Figure 24), the total dynamic impedance of the circuit is given by: ATL431 ATL432 eq_zprm.gif which is approximately equal to ATL431 ATL432 eq_zprm_app_eq.gif

7.8 Typical Characteristics

Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.
ATL431 ATL432 vref_vs_temp.gif
IKA=1mA
Figure 2. Reference Voltage vs Free-Air Temperature
ATL431 ATL432 vref_Ik.gif
Figure 4. Cathode Current vs Cathode Voltage
ATL431 ATL432 vref_ikzoom.gif
Figure 6. Cathode Current vs Cathode Voltage
ATL431 ATL432 dVref.gif
IKA=1mA
Figure 8. Delta Reference Voltage vs Cathode Voltage
ATL431 ATL432 irefVStemp.gif
Figure 3. Reference Current vs Free-Air Temperature
ATL431 ATL432 vref_lowIk.gif
Figure 5. Cathode Current vs Cathode Voltage
ATL431 ATL432 Ioff.gif
Figure 7. Off-State Cathode Current vs Free-Air Temperature
ATL431 ATL432 dVref_temp.gif
IKA=1mA
Figure 9. Delta Reference Voltage vs Cathode Voltage
ATL431 ATL432 Vnoise.gif
IKA = 1 mA
Figure 10. Noise Voltage
ATL431 ATL432 outZ.gif
Figure 27 used for this measurement.
Figure 12. Output Impedance vs Frequency
ATL431 ATL432 pulse100ua.gif
IKA = 100 µA Figure 29 used for this measurement.
Figure 14. Pulse Response
ATL431 ATL432 low5_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 16. Low IKA (VKA = 5.0 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 low15_region.gif
ESR < 20mΩ Figure 28 used to verify stability.
Figure 18. Low IKA (VKA = 15.0 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 high5_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 20. High IKA (VKA = 5.0 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 high15_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 22. High IKA (VKA = 15.0 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 bode.gif
Figure 26 used for this measurement. IKA=1mA
Figure 11. Small-Signal Voltage Amplification vs Frequency
ATL431 ATL432 outZ_temp.gif
Figure 27 used for this measurement.
Figure 13. DC Output Impedance vs Temperature
ATL431 ATL432 low2p5_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 15. Low IKA (VKA = 2.5 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 low10_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 17. Low IKA (VKA = 10.0 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 high2p5_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 19. High IKA (VKA = 2.5 V) Stability Boundary Conditions all ATL43xx Devices
ATL431 ATL432 high10_region.gif
ESR < 20 mΩ Figure 28 used to verify stability.
Figure 21. High IKA (VKA = 10.0 V) Stability Boundary Conditions all ATL43xx Devices
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