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PDF ZXGD3103N8 Data sheet ( Hoja de datos )
| Número de pieza | ZXGD3103N8 | |
| Descripción | SYNCHRONOUS MOSFET CONTROLLER | |
| Fabricantes | Diodes Incorporated | |
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A Product Line of
Diodes Incorporated
www.DataSheet4U.com
ZXGD3103N8
SYNCHRONOUS MOSFET CONTROLLER
Description
The ZXGD3103 is intended to drive MOSFETS
configured as ideal diode replacements. The
device is comprised of a differential amplifier
detector stage and high current driver. The
detector monitors the reverse voltage of the
MOSFET such that if body diode conduction
occurs a positive voltage is applied to the
MOSFET’s Gate pin.
Once the positive voltage is applied to the Gate
the MOSFET switches on allowing reverse current
flow. The detectors’ output voltage is then
proportional to the MOSFET Drain-Source reverse
voltage drop and this is applied to the Gate via the
driver. This action provides a rapid turn off as
current decays.
Features
Applications
• Proportional Gate Drive
• Flyback Converters in:
• Turn-off propagation delay 15ns and turn-off
• Adaptors
time 20ns.
• LCD Monitors
• Detector threshold voltage ~10mV
• Server PSU’s
• Standby current 5mA
• Set Top Boxes
• Suitable for Discontinuous Mode (DCM),
Critical Conduction Mode (CrCM) and
• LCD TV
Continuous Mode (CCM) operation
• Resonant Converters
• 5-15V VCC range
• LED TV
• High power Adaptors
• Street Lighting
• ATX psu
Pin out details
Typical Configuration
N/C 1
REF 2
GATEL 3
GATEH 4
SO-8
8 DRAIN
7 BIAS
6 GND
5 VCC
Ordering information
Device
Status
Package
Part Mark
Reel size
(inches)
ZXGD3103N8TC Production SO8 ZXGD3103 13
Tape width
(mm)
12
Quantity per reel
2500
ZXGD3103N8
Document number: DS32255 Rev. 2 - 2
1 of 12
www.diodes.com
July 2010
© Diodes Incorporated
1 page  
A Product Line of
Diodes Incorporated www.DataSheet4U.com
ZXGD3103N8
Typical Characteristics
14
12
V = 15V
CC
V = 12V
10
CC
V = 10V
CC
8
V = 5V
CC
6
4
2
See Resistor Table for Values
0
-100 -80 -60 -40 -20
V Drain Voltage (mV)
D
0
Transfer Characteristic
5
V = 10V
0 CC
R =3K3
BIAS
-5
R =4K3
REF
V = 1V
G
-10 100k pull up
-15
-20
-25
-50 -25 0 25 50 75 100 125 150
Temperature (°C)
Drain Sense Voltage vs Temperature
100
R =3k3
BIAS
80 R =4K3
REF
D = 0.5
60 f=250kHz
V = 15V
CC
V = 12V
CC
40
V = 10V
CC
20
V = 5V
CC
0
0 2 4 6 8 10 12 14 16 18 20 22
Capacitance (nF)
Supply Current vs Capacitive Load
10
8 T = -40°C
T = 25°C
T = 85°C
6 T = 125°C
4 V = 10V
CC
R =3K3
BIAS
2 R =4K3
REF
100k pull down
0
-100
-80 -60 -40 -20
V Drain Voltage (mV)
D
Transfer Characteristic
0
100
V = 10V
CC
R =3k3
BIAS
R =4K3
REF
D = 0.5
10
C =22nF
LOAD
C =10nF
LOAD
C =4.7nF
LOAD
C =2.2nF
LOAD
C =1nF
LOAD
1k 10k 100k
Frequency (Hz)
Supply Current vs Frequency
1
0
Current flow Supply to Gate
-1
-2
V = 10V
CC
R =3K3
BIAS
-3 R =4K3
REF
-4 T = 25°C
-5 Current flow Gate to Ground
0 5 10 15 20 25
Capacitance (nF)
Gate Current vs Capacitive Load
ZXGD3103N8
Document number: DS32255 Rev. 1 - 2
5 of 12
www.diodes.com
July 2010
© Diodes Incorporated
5 Page 
Package Outline and Dimensions
A Product Line of
Diodes Incorporated www.DataSheet4U.com
ZXGD3103N8
ZXGD3103N8
Document number: DS32255 Rev. 1 - 2
11 of 12
www.diodes.com
July 2010
© Diodes Incorporated
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ZXGD3103N8.PDF ] | |
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