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PDF AP3103 Data sheet ( Hoja de datos )
| Número de pieza | AP3103 | |
| Descripción | VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER | |
| Fabricantes | BCD | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AP3103 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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Data Sheet
VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER
General Description
Features
AP3103
The AP3103 is a low startup current, current mode · Bi-CMOS Process with Excellent Performance
PWM controller with green-mode power-saving opera-
tion. The PWM switching frequency at normal opera-
tion is externally programmable and is trimmed to a
tight range. The dithering of frequency will improve
·
·
·
Very Low Start-up Current:(< 15µA)
Current Mode Control
Non-audible-noise Green-mode Control
EMI feature. When the load decreases, the frequency · LEB (Leading-edge Blanking) on SENSE Pin
will reduce and when at a very low load, the IC will · Internal Slope Compensation
enter the ‘skip mode’ to minimize switching loss. · Frequency Fold Back for High Average Effi-
About 20kHz frequency switching is able to avoid the
ciency
audible noise as well as reduce the standby loss.
· Soft Switching for Reducing EMI
· Useful Pin Fault Protection:
The AP3103 features a lot of functions such as the
SENSE Pin Floating
Leading-Edge Blanking (LEB) of the current sensing,
RI Pin Short to Ground
internal slope compensation and several protection
RI Pin Floating
functions including cycle-by-cycle current limit
FB/Opt-coupler Open/short
(OCP), VCC Over Voltage Protection (VOVP), OTP, · Comprehensive System Protection Feature:
OLP protection.
VCC Over Voltage Protection (VOVP)
This IC is available in SOT-23-6 and DIP-8 packages.
Over Temperature Protection (OTP)
Over Load Protection (OLP)
· Mini Size with Packages
Applications
· Switching AC-DC Adapter/Charger
· ATX/BTX Auxiliary Power
· Set-top Box(STB) Power Supply
· Open Frame Switching Power Supply
Apr. 2011 Rev. 1. 4
SOT-23-6
DIP-8
Figure 1. Package Types of AP3103
BCD Semiconductor Manufacturing Limited
1
1 page  
VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER
Absolute Maximum Ratings (Note 1)
Data Sheet
AP3103
Parameter
Power Supply Voltage
Gate Output Current
Input Voltage to FB, SENSE pin
Symbol
VCC
IO
VFB, VSENSE
Thermal Resistance Junction to Ambient
θJA
Power Dissipation and Thermal Charac-
teristic, SENSE at TA<25oC
Operating Junction Temperature
Storage Temperature Range
ESD (Human Body Model)
ESD (Machine Model)
PD
TJ
TSTG
Value
30
300
-0.3 to 7
SOT-23-6
DIP-8
SOT-23-6
DIP-8
-40 to150
150
3000
300
250
100
500
1250
Unit
V
mA
V
oC/W
mW
oC
oC
V
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-
imum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Supply Voltage
Ambient Operating Temperature Range
Symbol
VCC
TA
Min
10
-40
Max
25
85
Unit
V
oC
Apr. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
5
5 Page 
VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER
Typical Application
Data Sheet
AP3103
C2 R4
R5
R6 C5
R19
T1
C6
R13
C7
L2
C8
C4
R2 R3
C1
VR1
C3
U1
VCC GATE
SENSE
RI
AP3103
R7 FB
GND
R8
R9
C11
R10
R11
R12
R14
R15
C10
R16
U2
AZ431
C9
R17
R18
Figure 10. Typical Application of AP3103
Apr. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet AP3103.PDF ] | |
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