A-POWER APE6019M-HF

Advanced Power
Electronics Corp.
APE6019
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
The fundamental of APE6019 synchronous rectifier
(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.
Waveform.
APPLICATIONS
Servers & Workstations
Storage Area Network Power Supplies
Telecommunication Converters
Embedded Systems
Industrial & Commercial Systems Using High Current Processors
TYPICAL APPLICATION
Lm1
T1
VOUT
+12Vdc
Rt
Lp
Ls
APE6019
Timing
SYNC
Pred
Vdd
VR
MOSG-C
Adj
GND
SR
Mosfet Rs1
C3
Rg
Rs2
C2
Q1
PACKAGE/ORDERING INFORMATION
APE6019X-HF
Package Type
M : SO-8
Halogen Free
( Top View )
Timing
1
Pred
2
VR
3
Adj
4
APE6019
8
SYNC
7
VDD
6
MOSG-C
5
GND
SO-8
Data and specifications subject to change without notice
1
201005242
Advanced Power
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.
DC Supply Voltage (VDD) --------------------------------- 16V
Power [email protected]=85oC (PD) --------------------- 0.25W
Storage Temperature Range (T ST) --------------------
-40 to 150oC
Operating Junction Temperature Range (T J) -------
-40 to 125oC
Lead Soldering Temperature for 5 sec (T L) ---------
260oC
Thermal Resistance Junction to Case (Rth jc)Note
45oC/W
Thermal Resistance Junction to Ambient(Rth ja)
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
-
4
7
mA
VSYNC=0V, No load
-
5
8
mA
IDD peak < 2A
-
-
16
V
SUPPLY INPUT
No load
Supply Current
IDD
Supply Voltage
VDD
Enable Voltage
Vddon
9
10
11
V
Vshth
-
3.9
-
V
SYNC REFERENCE (SYNC)
SYNC High Threshold
SYNC Low Threshold
Vslth
SYNC Clamp Voltage
Vsync
SYNC Input Current
Isync=3mA
ISYNC
-
0.9
-
V
-
5
-
V
-
-
3
mA
-
-
20
mA
-
20
-
us
Voltage Regulator REFERENCE (VR)
VR Output Current
IVR
ON TIME DUTY SETUP ( PIN 6 )
Ton-Time
MOSFET GATE DRIVER (MOSG-C)
Output High Voltage
Voh
VCC=12V、IO = 200mA
10.5
-
VCC
V
Output Low Voltage
Vol
-
0.5
0.8
V
Source Current
Ioh
VCC=12V、IO = -200mA
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)
-
10
25
ns
Fall Time
Tf
No load (Note1)
-
10
25
ns
Dynamic Protect
Dynamic Variable
Dt
Pin 4 open
-
600
-
ns
PWM adjusts time > Dt
-
1
-
us
MOSG-C on Time
Ton-min
Note 1: Tr & Tf are measured among 10% and 90% of starting and final voltage.
2
Advanced Power
Electronics Corp.
APE6019
WAVEFORM DEFINITIONS
PIN DESCRIPTIONS
PIN SYMBOL
Timing
PIN DESCRIPTION
Discontinuous current filter timing adjustment resistor connection.
Capacitor to store previous cycle timing for SR MOSFET
Pred
VR
Voltage Regulator
Adj
Trigger point adjustment for Dynamic state.
Ground connection.
GND
Catch MOSFET gate drive.
MOSG-C
DC supply voltage.
VDD
Synchronized signal from the VDS of SR MOSFET
SYNC
BLOCK DIAGRAM
Vdd
VR
REGULATOR
UVLO
SYNC
0. 9V
Falling
Edge
Detector
Main
Control
Star
Gate
Driver
MOSG-C
3. 9V
Stop
Timing
∆T
Duty
Trigger
Control
P rediction
Adj
VR
GND
Pred
3
Advanced Power
Electronics Corp.
APE6019
TYPICAL PERFORMANCE CHARACTERISTICS
*Fig. 1 : No Load ; No SYNC
*Fig. 4~5 : Frequency = 100 kHz.
4
Advanced Power
Electronics Corp.
APE6019
MARKING INFORMATION
SO-8
Part Number
Package Code
6019M
YWWSSS
Date Code (YWWSSS)
Y:Last Digit Of The Year
WW:Week
SSS:Sequence
5
Advanced Power
Electronics Corp.
PACKAGE OUTLINE
SO-8
APE6019