AP8024P7VU [AITSEMI]
AC-DC PFM CONTROLLER NON-ISOLATED PFM CONVERTERS;
| 型号： | AP8024P7VU |
| 厂家： | 
AiT Semiconductor |
| 描述： | AC-DC PFM CONTROLLER NON-ISOLATED PFM CONVERTERS |
| 文件： | 总11页 (文件大小：344K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
DESCRIPTION
FEATURES
The AP8024 consists of an integrated Pulse
Frequency Modulator (PFM) controller and power
MOSFET ， specifically designed for small power
non-isolated switching power supply. AP8024 has
internal high voltage start-up circuit and complete
intelligent protections including adjustable Over
Current Protection (OCP), Under Voltage Lockout
(UVLO) and Over Temperature Protection (OTP).
Excellent EMI performance could be achieved with
Pulse Frequency Modulation.
Internal 650V avalanche-rugged smart power
VDMOSFET
Internal HV Start-up Circuit
Be optimized with 12V output non-isolated
application
Semi enclosed steady output power 3.6W
@230VAC, DIP7
Frequency modulation for low EMI
Excellent constant voltage regulation and High
efficiency
Excellent Protection Coverage:
Adjustable Over Current Protection（OCP）
Over Temperature Protection（OTP）
Under Voltage Lockout（UVLO）
Available in a DIP7 package.
AP8024 is available in a DIP7 package.
ORDERING INFORMATION
APPLICATION
non-isolated assistant power supply
Package Type
Part Number
AP8024P7U
AP8024P7VU
DIP7
P7
SPQ: 50pcs/Tube
V: Halogen free Package
U: Tube
Note
AiT provides all RoHS products
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 1 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
PIN DESCRIPTION
Top View
Pin #
1, 2
3
Symbol
GND
NC
Function
Ground
No connection
4
VDD
Positive Supply voltage Input.
No connection
5
NC
6, 7
SW
HV MOSFET Drain pin.
TYPICAL POWER
Part Number
AP8024 DIP7
Input Voltage
150-265 VAC
85-265 VAC
Steady output powerNOTE1
3.6W(12V300mA)
Peak Power NOTE2
4.8W(12V400mA)
4.2W(12V350mA)
3.0W(12V250mA)
NOTE1: Maximum output power in a semi enclosed design measured at 75°C ambient temperature, Duration:2 hours
NOTE2: Peak power in a semi enclosed design measured at 75°C ambient temperature, Duration:1 min
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 2 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
ABSOLUTE MAXIMUM RATINGS
TA = 25℃, unless otherwise noted
VDD, Supply Voltage Pin
-0.3V~40V
-0.3V~650V
-40℃~150℃
-55℃~150℃
260℃
SW, High-Voltage Pin
Junction Operating Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10secs)
Package Thermal Resistance (DIP7)
ESD Voltage Protection (HBM, ESDA/JEDEC JDS-001-2014)
ESD Voltage ProtectionNOTE1
40℃/W
±4kV
8kV
(Air discharge to pins of AP8024 with ESD Generator)
The Biggest Drain Pulse Current (Tpulse=100us)
3A
Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and
operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
NOTE1: Enterprise internal standards, for reference only.
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 3 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
ELECTRICAL CHARACTERISTICS
Power Supply Section
TA =25°C, VDD = 11V, unless otherwise specified
Parameter
Symbol
BVDSS
IOFF
Conditions
ISW = 250uA
Min
Typ.
690
-
Max
Units
V
Drain Break-Down Voltage
Off-State Drain Current
VDMOS on State Resistance
650
-
VSW = 500V
-
-
-
100
μA
Ω
RDS(ON)
ISW = 400mA, TJ =25°C
13.5
30
-
-
Start up Threshold
Supply Section
VSW_START VDD = VDDon - 1V
V
Parameter
VDD Voltage Parameter
Operating Voltage Range
VDD Start Up Threshold
VDD Under Voltage Shutdown
Threshold
Symbol
Conditions
After turn-on
Min
Typ.
Max
Units
VDD
10
-
20
V
V
VDDon
10.5
11.5
12.5
VDDoff
8
9
10
V
VDD Voltage Hysteresis
VDD Clamp Voltage
VDDhys
VDDclamp
VDD-REF
-
18
-
2.5
20
-
22
-
V
V
V
VDD Feedback Reference
VDD Current Parameter
VDD Charge Current
12.3
IDDch
IDDoff
IDD1
VDD = 5V
VDD = 6V
VDD = 13V
-
0.3
-
-3
-
0.9
-
mA
mA
mA
Off-State Current
0.6
1.2
Operating Supply Current
Operating Supply Current, With
IDD_FAULT VDD = 11V
-
1
-
mA
Protection Tripping
Control Section
Parameter
Current Sense Parameter
Drain Current Limit
Symbol
Conditions
Min
Typ.
Max
Units
Ilimit
tLEB
490
-
580
300
670
-
mA
ns
Leading Edge Blanking Time
Feedback Input
Minimum Turn OFF Time
Maximum Turn ON Time
Thermal Shutdown
OTP Threshold
toffmin
tonmax
15
-
18
13
21
-
us
us
TSD
135
-
150
30
-
-
°C
°C
OTP Protect Hysteresis
Restart Protection
THYST
Restart Time
tRESTART
C
VDD=4.7μF
-
3
-
s
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 4 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
TYPICAL ELECTRICAL CHARACTERISTICS
25℃, Unless Note
1.
3.
5.
R
DS(on) vs. TJ
2.
4.
6.
BVDSS vs. TJ
Toffmin vs. TJ
VDDoff vs. TJ
VREF vs. TJ
VDDon vs. TJ
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 5 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
BLOCK DIAGRAM
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 6 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
DETAILED INFORMATION
The AP8024 consists of an integrated Pulse Frequency Modulator (PFM) controller and power MOSFET,
specifically designed for small power non-isolated switching power supply. AP8024 has internal high voltage
start-up circuit and complete intelligent protections including adjustable Over Current Protection (OCP), Under
Voltage Lockout (UVLO) and Over Temperature Protection (OTP). Excellent EMI performance could be
achieved with Pulse Frequency Modulation.
Start up
At start up, the internal high-voltage current source supplies 2.5mA current to charges the external VDD
capacitor. When VDD rises to VDDon, AP8024 starts switching and the internal high-voltage current source
stops charging the capacitor. After start up, the VDD voltage is supplied from output.
CV Operation Mode
In CV operation, AP8024 samples the feedback signal through VDD pin. While the feedback voltage remains
below VREF, the IC turns on the integrated MOSFET. When the current of the inductor reaches the peak
current limit (Ipeak), the integrated MOSFET is turned off. Figure1 and Figure 2 shows the operating
waveform of key nodes in continuous conduction mode (CCM) and discontinuous conduction mode (DCM).
Meanwhile, the IC integrates load compensation function to improve load regulation and CV accuracy.
Figure 1 Waveform if CCM mode
Figure 2 Waveform of DCM mode
In actual applications, VDD sampling voltage is affected by the forward drop of D2 in addition
PFM modulation
The IC operates in PFM mode, and Ipeak is set to decrease with the decrease of the IC operating frequency
(fsw). when the IC switching cycle increase 1us, Ipeak will decrease 13.3mA. As a result of the internal
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 7 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
current sampling and the maximum current limit (Ilimit), inductance is the only parameter of the frequency
modulation when output voltage and output current are fixed.
Soft-Start up
In order to regulate peak current in deep CCM mode, AP8024 build in soft-start function, at the first 10ms of
start up, the switching frequency decrease to 25% of the maximum frequency, while 10ms to 15ms of start up,
the switching frequency decrease to 50% of the maximum frequency. Meanwhile, the leading edge blanking
(LEB) is 300ns (Typ.), in order to regulate peak current.
Smart Protection Control
AP8024 has several smart self-protection functions, such as Over Temperature Protection(OTP),VDD
Under-Voltage Lockout(UVLO).And all these protections have self-recovery mode.
OTP----If the inner junction temperature exceeds 150℃,the IC will shut down switching, until the junction
temperature falls to 120℃.
UVLO----If VDD pin Voltage drops below VDDoff, the IC will restart. Otherwise, self-restart time can be changed
by VDD capacitor. The larger the capacitor, the longer the self-restart time is.
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 8 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
TYPICAL CIRCUIT
TYPICAL APPLICATION
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 9 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
PACKAGE INFORMATION
Dimension in DIP7 (Unit: mm)
Symbol
A
Min
3.60
0.51
3.00
1.55
0.44
0.43
Max
4.00
-
A1
A2
A3
b
3.40
1.65
0.53
0.48
b1
B1
c
1.52(BSC)
0.25
0.24
9.05
6.15
0.31
0.26
9.45
6.55
c1
D
E1
e
2.54(BSC)
7.62(BSC)
eA
eB
eC
L
7.62
0.00
3.00
9.30
0.84
-
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 10 -
AiT Semiconductor Inc.
AP8024
www.ait-ic.com
AC-DC PFM CONTROLLER
NON-ISOLATED PFM CONVERTERS
IMPORTANT NOTICE
AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to
discontinue any integrated circuit product or service without notice, and advises its customers to obtain the
latest version of relevant information to verify, before placing orders, that the information being relied on is
current.
AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to
be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT
products in such applications is understood to be fully at the risk of the customer. As used herein may involve
potential risks of death, personal injury, or server property, or environmental damage. In order to minimize
risks associated with the customer's applications, the customer should provide adequate design and
operating safeguards.
AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT
warrants the performance of its products of the specifications applicable at the time of sale.
REV2.0
- JAN 2015 RELEASED, MAR 2018 UPDATED -
- 11 -
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