Data Sheet
GREEN MODE PWM CONTROLLER
General Description
The AP3101 is a green PWM controller operating in
current mode. It is specifically designed for off-line
AC-DC adapter and battery charger applications where
the needs for low standby power and better protection
function are increasing.
The AP3101 features adjustable oscillator frequency in
normal operation, which is done by an external resis-
tor. It automatically switches to skip cycle mode when
output power drops below a given level. The IC also
features low start-up and operation current for its
BiCMOS process.
The AP3101 provides comprehensive protection fea-
tures including leading edge blanking, synchronized
slope compensation, over-current, over-temperature
and short circuit protection.
The AP3101 is available in 2 packages: SOIC-8 and
DIP-8.
AP3101
Features
·
·
·
·
·
·
·
·
·
·
·
Green Current Mode PWM Controller
Adjustable Skip Level
Leading Edge Blanking (LEB)
Cycle by Cycle Current Limit
Built-in Short Circuit Protection
Built-in Synchronized Slope Compensation
Low Start-up/Operating Current: 30
µ
A/3mA
Adjustable Oscillator Frequency
Totem Pole Output Including Soft Driving
Under-Voltage Lockout (UVLO)
Accurate Over-Temperature Protection with Hys-
teresis
Applications
·
·
Off-line AC-DC Adapter
Battery Charger Applications
SOIC-8
DIP-8
Figure 1. Package Types of AP3101
Jan. 2013 Rev. 1. 6
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BCD Semiconductor Manufacturing Limited
Data Sheet
GREEN MODE PWM CONTROLLER
Pin Configuration
AP3101
M Package
(SOIC-8)
GND
FB
VIN
RI
1
2
3
4
8
7
6
5
P Package
(DIP-8)
GATE
VCC
SENSE
ADJ
GND
FB
VIN
RI
1
2
3
4
8
7
6
5
GATE
VCC
SENSE
ADJ
Figure 2. Pin Configuration of AP3101 (Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
GND
FB
VIN
RI
ADJ
SENSE
VCC
GATE
Power ground
Feedback
Start-up current in
Reference setting
Adjust the level of skip cycle
Current sense
The positive supply of the control IC
Driver output
Function
Jan. 2013 Rev. 1. 6
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BCD Semiconductor Manufacturing Limited
Data Sheet
GREEN MODE PWM CONTROLLER
Ordering Information
AP3101
AP3101
Circuit Type
Package
P: DIP-8
M: SOIC-8
-
E1: Lead Free
G1: Green
TR: Tape and Reel
Blank: Tube
Package
SOIC-8
DIP-8
Temperature
Range
-40 to 85
o
C
-40 to 85
o
C
Part Number
Lead Free
AP3101M-E1
AP3101MTR-E1
AP3101P-E1
Green
AP3101M-G1
AP3101MTR-G1
AP3101P-G1
Marking ID
Lead Free
3101M-E1
3101M-E1
AP3101P-E1
Green
3101M-G1
3101M-G1
AP3101P-G1
Packing Type
Tube
Tape & Reel
Tube
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Jan. 2013 Rev. 1. 6
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BCD Semiconductor Manufacturing Limited
Data Sheet
GREEN MODE PWM CONTROLLER
Absolute Maximum Ratings (Note 1)
Parameter
Supply Voltage
Gate Output Current
Input Voltage to FB
Input Voltage to SENSE
Input Voltage to RI
Input Voltage to ADJ
Operating Junction Temperature
Storage Temperature Range
ESD (Human Body Model)
ESD (Machine Model)
Power Dissipation at T
A
Thermal Resistance
Ambient)
<25
o
C
(Junction
to
DIP-8 Package
SOIC-8 Package
DIP-8 Package
SOIC-8 Package
P
D
T
STG
Symbol
V
CC
I
O
Value
30
600
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
150
-65 to 150
4
400
1350
550
83
186
Unit
V
mA
V
V
V
V
o
C
o
C
AP3101
kV
V
mW
R
θJA
o
C/W
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 indi-
cated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended
periods may affect device reliability.
Recommended Operating Conditions
Parameter
Operating Ambient Temperature
Supply Voltage
Symbol
T
A
V
CC
Min
-40
Max
85
20
Unit
o
C
V
Jan. 2013 Rev. 1. 6
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BCD Semiconductor Manufacturing Limited
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