Anachip AP436SA Synchronous rectifier mosfet driver Datasheet

AP436
Synchronous Rectifier MOSFET Driver
„ Features
„ General Descriptions
- VOUT slew-rate minimum 100V/uS @ CL=3000pF
- IOUT(sink & source)=1.2 / 0.9 A
- Safety considered.
- Reduce power system thermal & increase
system efficiency.
- Pb-free packages: SOT89-5L, SOP-8L
The AP436 is a high-speed controller designed to
drive N-channel power MOSFET used as
synchronous rectifiers in high current, high
frequency fly-back converters. The circuit does
not require any ties to the primary side and
derives its operating power directly from the
secondary. The circuit functions are structured by
anticipating transformer output transitions then
turns the power MOSFET on or off before the
transitions of the transformer to minimize body
drain diode conduction and reduce associated
losses.
„ Application
- Power Adapter.
(50~120W for LCD Monitor & NB…etc.)
„ Pin Descriptions
„ Pin Assignment
Name
VCC
VR
VDC
( Top View )
VCC 1
GND 2
5 VOUT
TAB
(GND)
AP436
VDC 3
VOUT
GND
74 VR
Description
Operating voltage input
Reference input voltage
Duty cycle input voltage
Output voltage for driving N channel
MOSFET
Ground
SOT89-5L
( Top View )
VOUT 1
VCC 2
„ Ordering Information
8 GND
AP436
7 GND
VDC 3
6 GND
VR 4
5 GND
AP436 XX X
SOP-8L
Package
Packing
S : SOP-8L
Y : SOT89-5L
Blank: Tube
A : Taping
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.0 Oct 4, 2005
1/6
AP436
Synchronous Rectifier MOSFET Driver
„ Block Diagrams
VCC
Start-Up
IB1
IB2
5.6V
VR
VDC
High
Speed
Comparator
Block
Buffer
VOUT
15K
GND
„ Absolute Maximum Ratings
Symbol
VCC
VR
VDC
VOUT
PD
TST
TOP
VOP
Parameter
Supply Voltage
Reference input voltage
Duty cycle input voltage
Output voltage to Ground
Power dissipation
Storage temperature range
Operating temperature range
Operating voltage range
Rating
Unit
14
-0.3≦V≦2.5
-0.3≦V≦VCC-2.1
-0.7
1
-65 to 150
-40 to +125
7.2 to 14
V
V
V
V
W
o
C
o
C
V
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 4, 2005
2/6
AP436
Synchronous Rectifier MOSFET Driver
„ Electrical Characteristics
O
Unless otherwise specified, guaranteed for Tj=25 C, VCC=12V.
Symbol
VCC
IB1
IB2
VR
VDCL
VOH
VOL
VDC
VCM
IS
Parameter
Supply Voltage
Input Bias Current (Pin VR)
Input Bias Current (Pin VDC)
Reference Pin Voltage Range
Minimum Input Signal Voltage
Output High
Output Low
Detection Voltage
Common Mode Range
Supply Current (Average Value)
ISOURCE Sourcing Current (Transient Value)
ISINK
Sinking Current (Transient Value)
IOP
Operation Current (Average Value)
FOP
PD
Output Delay Time(Low to High)
Output Delay Time(High to Low)
Output Rise Time (10% ~ 90% Rise
Edge)
Output Fall Time (10% ~ 90% Fall
Edge)
Maximum Operation Frequency
Power Dissipation
ISD
(Icc Shutdown Current)
TPD
TR
TF
Conditions
VR=0.7V,VCC=12V
VDC=0.7V,VCC=12V
CL=3000pF
RL=2K
Min.
7.2
-74
-74
0.3
-0.3
Vcc-1.5
Typ.
12
-103
-103
0.7
Max.
14
-150
-150
1.5
0.8
0.9
VR+6
1.5
6
VR
0.7
VCC=12V,No Load
VCC=12V,CL=3000pF
RL=2K,Cin=47uF,
FVdc=200KHz
VCC=12V,CL=3000pF
RL=2K,Cin=47uF,
FVdc=60KHz
SOT89-5L, SOP-8L
VCC=5V,
CL=3000pF
RL=2K,Cin=47uF,
FVdc=60KHz
5.5
Units
V
uA
uA
V
V
V
V
mV
V
mA
1250
mA
900
mA
14
mA
80
60
100
100
nS
nS
35
100
nS
60
100
nS
200
KHz
W
0.43
mA
1
0.2
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 4, 2005
3/6
AP436
Synchronous Rectifier MOSFET Driver
„ Typical Application Circuit
(1)
220u
with
0.1u
GND
VOUT
+
VCC
GND
AP436
GND
VDC
1N4148
1N4148
VR
GND
BEAD
1N5819
D
S
IRF
G
Z44N
SYSTEM +
OUTPUT
-
(2)
SYSTEM +
OUTPUT
IRF
Z44N
D
S
BEAD 1N5819
G
-
-
220u
with
0.1u
+
GND
VOUT
VCC
GND
AP436
GND
VDC
1N4148
VR
GND
1N4148
„ Marking Information
(1)
(2)
8
4
XX Y M
5
Logo
AP436
Part Number
YY WW X
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
1
4
1
(Top View)
7
5
( Top View )
2
3
XX : Identification code
(See Appendix)
Y : Year: 0-9
M : Month: A~L
SOT89-5L
~
Appendix
Part Number
AP436
Package
SOT89-5L
Identification Code
FM
SOP-8L
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 4, 2005
4/6
AP436
Synchronous Rectifier MOSFET Driver
„ Package Information
H
E
(1) Package Type: SOP-8L
L
VIEW "A"
D
0.015x45
7 (4X)
e
B
A1
C
A
A2
7 (4X)
VIEW "A"
y
Symbol
A
A1
A2
B
C
D
E
e
H
L
y
θ
Dimensions In Millimeters
Min.
Nom.
Max.
1.40
1.60
1.75
0.10
0.25
1.30
1.45
1.50
0.33
0.41
0.51
0.19
0.20
0.25
4.80
5.05
5.30
3.70
3.90
4.10
1.27
5.79
5.99
6.20
0.38
0.71
1.27
0.10
0O
8O
Dimensions In Inches
Min.
Nom.
Max.
0.055
0.063
0.069
0.040
0.100
0.051
0.057
0.059
0.013
0.016
0.020
0.0075
0.008
0.010
0.189
0.199
0.209
0.146
0.154
0.161
0.050
0.228
0.236
0.244
0.015
0.028
0.050
0.004
0O
8O
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 4, 2005
5/6
AP436
Synchronous Rectifier MOSFET Driver
„ Package Information (Continued)
(2) Package Type: SOT89-5L
A
C
1.7
4.6
0.4
F
1.1
1.2
B
E
F
0.5
D
0.55
I
1.5
Land Pattern Recommendation (Unit: mm)
H
L
K
J
G
Symbol
A
B
C
D
E
F
G
H
I
J
K
L
Dimensions In Millimeters
Min.
Nom.
Max.
4.40
4.50
4.60
4.05
4.15
4.25
1.50
1.60
1.70
1.30
1.40
1.50
2.40
2.50
2.60
0.80
3.00 Ref.
1.50 Ref.
0.40
0.46
0.52
1.40
1.50
1.60
0.35
0.39
0.43
5o Typ.
Dimensions In Inches
Min.
Nom.
Max.
0.173
0.177
0.181
0.159
0.163
0.167
0.059
0.063
0.067
0.051
0.055
0.059
0.094
0.098
0.102
0.031
0.118 Ref.
0.059 Ref.
0.016
0.018
0.020
0.055
0.059
0.063
0.014
0.015
0.017
5o Typ.
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 4, 2005
6/6
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