ZHCSIY3C March   2019  – August 2019 TPS568230

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
      2.      效率与输出电流 ECO 模式
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 PWM Operation and D-CAP3 Control
      2. 7.3.2 Soft Start
      3. 7.3.3 Large Duty Operation
      4. 7.3.4 Power Good
      5. 7.3.5 Over Current Protection and Undervoltage Protection
      6. 7.3.6 Over Voltage Protection
      7. 7.3.7 UVLO Protection
      8. 7.3.8 Output Voltage Discharge
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Light Load Operation
      2. 7.4.2 Advanced Eco-mode Control
      3. 7.4.3 Out of Audio Mode
      4. 7.4.4 Force CCM Mode
      5. 7.4.5 Mode Selection
      6. 7.4.6 Standby Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 External Component Selection
          1. 8.2.2.1.1 Output Voltage Set Point
          2. 8.2.2.1.2 Inductor Selection
          3. 8.2.2.1.3 Output Capacitor Selection
          4. 8.2.2.1.4 Input Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 第三方产品免责声明
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12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

6.5 Electrical Characteristics

TJ =-40°C to 125°C, VVIN = 12 V, unless otherwise noted
PARAMETER TEST CONDITION MIN TYP MAX UNIT
SUPPLY CURRENT
VIN Input voltage range VIN 4.5 18 V
IVIN VIN supply current No load, VEN=3.3V, non-switching 105 uA
IVINSDN Shutdown supply current No load, VEN=0V 2 uA
VCC OUTPUT
VCC VCC output voltage VVIN>5.0V 4.85 5 5.15 V
VVIN=4.5V 4.5 V
ICC VCC current limit 20 mA
FEEDBACK VOLTAGE
VFB FB voltage TJ = 25°C 594 600 606 mV
TJ = -40°C to 125°C 592 600 611 mV
DUTY CYCLE and FREQUENCY CONTROL
FSW Switching frequency TJ = 25°C , FSW=600kHz,Vo=1V 600 kHz
TON(MIN) SW minumum on time TJ = 25°C 60 ns
TOFF(MIN) SW minimum off time VFB = 0.5 V 190 ns
MOSFET and DRIVERS
RDS(ON)H High side switch resistance TJ = 25°C 19.5 mΩ
RDS(ON)L Low side switch resistance TJ = 25°C 9.5 mΩ
OOA FUNCTION
TOOA OOA mode operation period 28 us
OUTPUT DISCHARGE and SOFT START
RDIS Discharge resistance TJ=25°C, VEN=0V 420 Ω
TSS Soft start time Internal soft-start time,SS floating 1.3 ms
ISS Soft start charge current 5 uA
POWER GOOD
TPGDLY PG start-up delay PG from low to high 1 ms
VPGTH PG threshold VFB falling (fault) 85 %
VFB rising (good) 90 %
VFB rising (fault) 115 %
VFB falling (good) 110 %
VPG_L PG sink current capability IOL =4mA 0.4 V
IPGLK PG leak current VPGOOD =5.5V 1 uA
CURRENT LIMIT
IOCL Over current threshold Valley current set point 8.1 9.8 12 A
INOCL Negative over current threshold 3.9 A
LOGIC THRESHOLD
VENH EN high-level input voltage 1.21 1.31 1.4 V
VENL EN low-level input voltage 0.95 1.11 1.19 V
IEN Enable internal pull down current VEN=0.8V 2 µA
OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION
VOVP OVP trip threshold 125 %
tOVPDLY OVP prop deglitch TJ=25°C 20 us
VUVP UVP trip threshold 60 %
tUVPDLY UVP prop deglitch 256 us
TUVPDEL Output hiccup delay relative to SS time 256 us
TUVPEN Output hiccup enable delay relative to SS time 7 cycle
UVLO
VUVLOVIN VIN UVLO threshold Wake up 4.2 4.4 V
Shutdown 3.6 3.8 V
Hysteresis 0.4 V
OVER TEMPERATURE PROTECTION
TOTP OTP trip threshold(1) Shutdown temperature 150 °C
TOTPHSY OTP hysteresis(1) Hysteresis 20 °C
(1) Not production tested