SLUUCS5A january   2023  – july 2023 UCC14141-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 U1 Component Selection
    2. 1.2 Pin Configuration and Functions
  5. 2Description
    1. 2.1 EVM Electrical Performance Specifications
  6. 3Schematic
  7. 4EVM Setup and Operation
    1. 4.1 Recommended Test Equipment
    2. 4.2 External Connections for Easy Evaluation
    3. 4.3 Powering the EVM
      1. 4.3.1 Power on for Start-up
      2. 4.3.2 Power off for Shutdown
    4. 4.4 EVM Test Points
    5. 4.5 Probing the EVM
  8. 5 Performance Data
    1. 5.1  Efficiency Data
    2. 5.2  Regulation Data
    3. 5.3  Steady State Input Current
    4. 5.4  Start-up Waveforms
    5. 5.5  Inrush Current
    6. 5.6  AC Ripple Voltage
    7. 5.7  EN-to-/PG Timing
    8. 5.8  RLIM
    9. 5.9  Fault Protection
      1. 5.9.1 Output UVLO
      2. 5.9.2 Output OVP
    10. 5.10 Shutdown
    11. 5.11 Thermal Performance
  9. 6Assembly and Printed Circuit Board (PCB) Layers
  10. 7Bill of Materials (BOM)
  11. 8Revision History

2.1 EVM Electrical Performance Specifications

Table 2-1 EVM Electrical Specifications VIN=12 V, VDD-VEE=22 V, VDD=VDD-COM=18 V, VEE=VEE-COM=-4 V, TA = 25°C (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
INPUT CHARACTERISTICS
VINInput voltage rangePVDD-VEE=1.5 W101214V
VIN_ONInput voltage on910V
VIN_OFFInput voltage off89V
IIN_FLInput current at full loadVIN = 10 V, IVDD = 68 mA355mA
VIN = 12 V, IVDD = 68 mA310
VIN = 14 V, IVDD = 68 mA295
IIN_NLInput current at no loadVIN = 9 V, IVDD =IVEE = 0 mA55mA
VIN = 12 V, IVDD =IVEE = 0 mA42
VIN = 18 V, IVDD =IVEE = 0 mA40
IIN_OFFInput current at EN LOWEN LOW, VDD = VEE = 0 V500600µA
EN to /PG delayIVDD =IVEE = 0 mA45ms
OUTPUT CHARACTERISTICS
VDD-VEEDC full load set-point10 V<VIN<14 V, IVDD = 68 mA21.52222.5V
IVDDVDD load current range10 V < VIN < 14 V068mA
VDD%LDLoad regulation V D D R E G = V I ( m i n ) - V I ( m a x ) V I ( m a x ) × 100 %

VIN=12 V, 0 mA ≤ IVDD ≤ 68 mA

0.5%
VDD%LNLine regulation V D D R E G = V I ( m i n ) - V I ( m a x ) V I ( m a x ) × 100 %

IVDD=68 mA, 10 V ≤ VIN ≤ 14 V

0.1%
VDDACpk-to-pk AC rippleIVDD = 68 mA240290mV
VDDSSSoft-startIVDD = IVEE = 0 mA1.8ms
PMAXMaximum output powerIVDD = 109 mA, IVEE = 10 mA1.52W
VEE-COMDC full load set-point9 V ≤ VIN ≤ 18 V, IVEE = 10 mA-3.992-4.008V
IVEEVEE load current range10 V≤ VIN ≤ 14 V035mA
VEEACpk-to-pk AC rippleIVEE = 35 mA100120mV
SYSTEM CHARACTERISTICS
η100%Full load efficiency IVDD = 68 mA41%
η50%Half load efficiencyIVDD = 34 mA36%
FSWSwitching frequency (1)VIN = 10 V, 0 mA < IVDD < 68 mA20 MHz
VIN = 12 V, 0 mA < IVDD < 68 mA 16
VIN = 14 V, 0 mA < IVDD < 68 mA 13
VDD(OCL)VDD overcurrent limitIVDD > 110 mA112117mA
VEE(OCL)VEE overcurrent limitIVEE > 30 mA3542mA
TMAXMaximum temperature rise above ambientIVDD = 68 mA, IVEE = 20 mA6065°C
(1) Switching frequency is specified as primary-side switching frequency. Secondary-side is 2x primary