SYNC-POWER SP6003S8RG

SP6003
Synchronous Rectifier Driver
DESCRIPTION
The fundamental of SP6003 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. It also
maintains the MOSFET’s body diode conduction
at minimum level. The SP6003 is capable to
adapt in almost all existing flyback converters
with few adjustments considered necessary.
APPLICATIONS
• Servers & workstations
FEATURES
• Offers efficiency improvement over Schottky
Diode (depends on drive configuration of the
SR).
PIN CONFIGURATION (SOP-8)
•
Drives all logic level Power MOSFET.
•
Prediction gate timing control.
•
Minimum MOSFET body diode conduction.
•
Operating frequency up to 350 KHz.
•
Synchronize to transformer
voltage waveform.
2006/03/28 Ver.3
secondary
•
Storage area network power supplies
•
Telecommunication converters
•
Embedded systems
•
Industrial & commercial systems using high
current processors
PART MARKING
Page 1
SP6003
Synchronous Rectifier Driver
TYPICAL APPLCATION CIRCUIT
PIN DESCRIPTION
Pin
Symbol
1
Timing
2
NC
3
Rapid-Adj
Capacitor connection to adjust fast pulse width reduction response.
4
5
6
7
8
Cramp
GND
MOSG-C
Vdd
SYNC
Ramp capacitor adjustment to extend MOSFET’s gate timing.
Ground connection.
Catch MOSFET gate drive.
DC supply voltage.
Synchronized signal from transformer’s output.
2006/03/28 Ver.3
Description
Discontinuous current filter timing adjustment resistor connection.
No connection.
Page 2
SP6003
Synchronous Rectifier Driver
BLOCK DIAGRAM
ORDERING INFORMATION
Part Number
SP6003S8RG
SP6003S8TG
※ SP6003S8RG : 7” Tape Reel ; Pb – Free
Package
Part Marking
SOP-8
SOP-8
SP6003I
SP6003I
※ SP6003S8TG : Tube ; Pb – Free
ABSOULTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified.)
The following ratings designate persistent limits beyond which damage to the device may occur.
Symbol
Vdd
SYNC
IOUT
PD
TJ
TSTG
TLEAD
Parameter
DC Supply Voltage
SYNC Voltage
Peak Source Current (Pulsed)
Peak Sink Current (Pulsed)
Power Dissipation @ TA=85℃ (*)
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature for 5 sec.
2006/03/28 Ver.3
Value
7
7.5
1
1.5
0.25
-40 to 150
-40 to 150
260
Unit
V
V
A
A
W
℃
℃
℃
Page 3
SP6003
Synchronous Rectifier Driver
THERMAL RESISTANCE
Symbol
RӨJC
Parameter
Thermal Resistance Junction – Case (*)
Value
45
Unit
℃/W
(*) The power dissipation and thermal resistance are evaluated under copper board mounted with free air conditions.
ELECTRICAL CHARACTERISTICS
(TA=25℃, Vdd=5V, VSYNC=5V, Freq. =300 KHz, Duty Cycle=50%, unless otherwise specified.)
Symbol
Parameter
SUPPLY INPUT
IDD
Supply current
Vonth
Vdd turn on threshold
Voffth
Vdd turn off threshold
SYNC REFERENCE (SYNC)
Vshth
SYNC high threshold
Vslth
SYNC low threshold
MOSFET GATE DRIVER (MOSG-C)
Voh
Output high voltage
Vol
Output low voltage
Td
Propagation delay
Tr
Rise time
Tf
Fall time
Conditions
No load
Min.
Typ.
Max.
Unit
4
5.5
5.0
4.1
8
7.0
mA
V
V
3.8
3.9
Io = -200mA
Io = 200mA
No load
Load = 1nF (*)
Load = 1nF (*)
4.8
0.0
15
24
20
5.0
0.9
1.2
V
V
4.9
0.1
20
28
23
5.0
0.2
25
36
30
V
V
ns
ns
ns
(*) Tr & Tf are measured among 10% and 90% of starting and final voltage.
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Page 4
SP6003
Synchronous Rectifier Driver
PERFORMANCE CHARACTERISTICS (TA=25℃, unless otherwise specified.)
Figure 4: Supply Current vs Load Capacitor
Figure 1: Supply Current vs Supply Voltage
20
18
16
14
12
ID D
10
(m A)
8
6
4
2
0
10
9
8
7
6
ID D
5
(m A)
4
3
2
1
0
3.3 3.5 3.7 4 4.2 4.4 4.6 4.9 5 5.3 5.5 5.7 6.1
220 330 470 680 1000 1560 2200 2530 2880
V D D (V)
CLoa d (pF)
Figure 2: Output Rise Tim e vs Load Capacitor
Figure 5: Supply Current vs Freq. @ No Load
70
7
60
6
50
5
Tim e 40
(ns) 30
ID D 4
(m A) 3
20
2
10
1
0
0
220
330
470
680 1000
CLo ad (pF)
1330 1680
20
50 81 154 184 256 327 380 425 484 554
Frequency (kHz)
Figure 3: Output Fall Tim e vs Load Capacitor
Figure 6: Supply Current vs Freq. @ Load=1nF
20
70
18
60
16
50
14
Tim e 40
(ns) 30
12
ID D
10
(m A)
8
20
6
4
10
2
0
0
220
330
470
680
1000
CLo a d (pF)
1330
1680
30
50
70
93
119 128 149 170 176
Frequency (kHz)
*Fig. 2-4: Frequency = 85 kHz.
2006/03/28 Ver.3
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SP6003
Synchronous Rectifier Driver
SOP- 8 PACKAGE OUTLINE
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SP6003
Synchronous Rectifier Driver
Information provided is alleged to be exact and consistent. SYNC Power Corporation presumes no responsibility for the
penalties of use of such information or for any violation of patents or other rights of third parties, which may result from its use.
No license is granted by allegation or otherwise under any patent or patent rights of SYNC Power Corporation. Conditions
mentioned in this publication are subject to change without notice. This publication surpasses and replaces all information
previously supplied. SYNC Power Corporation products are not authorized for use as critical components in life support
devices or systems without express written approval of SYNC Power Corporation.
©The SYNC Power logo is a registered trademark of SYNC Power Corporation
©2004 SYNC Power Corporation – Printed in Taiwan – All Rights Reserved
SYNC Power Corporation
9F-5, No.3-2, Park Street
NanKang District (NKSP), Taipei, Taiwan, 115, R.O.C
Phone: 886-2-2655-8178
Fax: 886-2-2655-8468
http://www.syncpower.com
2006/03/28 Ver.3
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