APE6019 A-POWER | Alldatasheet
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Technical content
Electronics Corp. SYNCHRONOUS RECTIFIER DRIVER FEATURES DESCRIPTION Offers Efficiency Improvement Over Schottky Diode (Depends on Drive Configuration of the SR). Drives all Power MOSFET. Prediction Gate Timing Control. Minimum MOSFET Body Diode Conduction. Operating Frequency up to 400 KHz Synchronize to Transformer Secondary Voltage Waveform.
APPLICATIONS
Servers & Workstations Storage Area Network Power Supplies Telecommunication Converters Embedded Systems Industrial & Commercial Systems Using High Current Processors Data and specifications subject to change without notice 201005242 APE6019 TYPICAL APPLICATION PACKAGE/ORDERING INFORMATION The fundamental of APE6019 synchronous rectifie r (SR) driver IC is based on our U.S. patented methods that utilize the principle of “ prediction ” logic circuit. The IC deliberates previous cycle timing to control the SR in present cycle by “ predictive ” algorithm that makes adjustments to the turn-off time, in order to achieve maximum efficiency and avoid cross-conduction at the same time. Due to this patented technology, APE6019 is suitable for either Forward or Flyback topology. Rt Timing SYNC Vdd MOSG-C GND APE6019 Adj Pred VR Rg Rs1 Rs2 +12Vdc SR Mosfet Lm1 Lp Ls VOUT Package Type APE6019X-HF M : SO-8 Halogen Free ( Top View ) Timing VR SO-8 APE6019 Adj Pred SYNC VDD GND MOSG-C
Electronics Corp. APE6019 ABSOLUTE MAXIMUM RATINGS (TA=25oC, unless otherwise specified.) The following ratings designate persistent limits beyond which damage to the device may occur. Thermal Resistance Junction to Case (Rthjc)Note 45oC/W 160°C/W Note. The power dissipation and thermal resistance are evaluated under copper board mounted with free air conditions. ELECTRICAL SPECIFICATIONS (TA=25oC, VDD=12V, Freq. =300 KHz, Duty Cycle=50%, unless otherwise specified.) Parameter SYM TEST CONDITION MIN TYP MAX UNITS No load - 4 7 mA VSYNC=0V, No load -5 8 m A Supply Voltage VDD IDD peak < 2A - - 16 V Enable Voltage Vddon 91 0 1 1 V SYNC High Threshold Vshth - 3.9 - V SYNC Low Threshold Vslth - 0.9 - V SYNC Clamp Voltage Vsync Isync=3mA -5 - V SYNC Input Current ISYNC -- 3 m A VR Output Current IVR - - 20 mA Ton-Time -2 0 - u s Output High Voltage Voh VCC=12V、IO = 200mA 10.5 - VCC V Output Low Voltage Vol VCC=12V、IO = -200mA - 0.5 0.8 V Source Current Ioh CLOAD = 10nF 1 1.2 A Sink Current Iol CLOAD = 10nF -1 -1.2 A Propagation Delay Td No load 50 80 - ns Pred Time TPred No load - 120 - ns Rise Time Tr No load (Note1) -1 0 2 5n s Fall Time Tf No load (Note1) -1 0 2 5n s Dynamic Protect Dynamic Variable Dt Pin 4 open - 600 - ns MOSG-C on Time Ton-min PWM adjusts time > Dt -1 - us Note 1: Tr & Tf are measured among 10% and 90% of starting and final voltage. Voltage Regulator REFERENCE (VR) ON TIME DUTY SETUP ( PIN 6 ) MOSFET GATE DRIVER (MOSG-C) SUPPLY INPUT SYNC REFERENCE (SYNC) Supply Current IDD Thermal Resistance Junction to Ambient(Rthja)
Electronics Corp. APE6019 WAVEFORM DEFINITIONS PIN DESCRIPTIONS PIN SYMBOL PIN DESCRIPTION Timing Discontinuous current filter timing adjustment resistor connection. Pred Capacitor to store previous cycle timing for SR MOSFET VR Voltage Regulator Adj Trigger point adjustment for Dynamic state. GND Ground connection. MOSG-C Catch MOSFET gate drive. VDD DC supply voltage. SYNC Synchronized signal from the VDS of SR MOSFET BLOCK DIAGRAM Falling Edge Detector UVLO 0.9V 3.9V VR SYNC ∆TTiming Pred Adj Main Control Star Stop Vdd MOSG-CGate Driver VR Prediction REGULATOR GND Duty Trigger Control
Electronics Corp. APE6019 TYPICAL PERFORMANCE CHARACTERISTICS *Fig. 1 : No Load ; No SYNC *Fig. 4~5 : Frequency = 100 kHz.
Electronics Corp. APE6019 MARKING INFORMATION SO-8 6019M YWWSSS Part Number Package Code Date Code (YWWSSS) Y：Last Digit Of The Year WW：Week SSS：Sequence
Electronics Corp. APE6019 SO-8