Diodes AP3844GM-E1 Green mode pwm controller Datasheet

Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
General Description
Features
The AP384XG is a Green Mode PWM controller. It is
specially designed for off-line AC-DC adapter and battery charger applications where both needs for low
standby power and high efficiency in normal operation
are required. In a well designed product, the AP384XG
is capable to allow the system consuming only 0.5W
power in standby mode.
·
·
·
·
·
·
·
·
·
·
In normal operation, the AP384XG features adjustable
frequency by using an external resistor and capacitor
combination. When output power falls below a given
level, the IC automatically switches to the skip mode,
which works by skipping switching cycles. The
AP384XG also features low start-up and low standby
operating current for its special topology.
Applications
The AP384XG provides accurate protection against
over-temperature, over-current and maximal output
power.
·
·
·
·
·
The AP384XG is available in SOIC-8 and DIP-8
packages.
Option 1
Green Mode PWM Controller to Support the
"Blue Angel" Norm
Adjustable Skip Cycle Mode Operation
Low Start-up Current: 50μA (Typ.)
Low Standby Operating Current: 6mA
Internal Leading Edge Blanking
Adjustable Oscillator Frequency up to 500KHz
Totem Pole Output
Under Voltage Lock Out (UVLO)
Over-Temperature Protection
Pin to Pin Replacement for AZ384XA
Off-line Converter
DC-DC Converter
DVD/STB Power Supply
Power Adapter
CRT Monitor Power Supply
Option 2
SOIC-8
DIP-8
Figure 1. Package Types of AP384XG
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Pin Configuration
P Package
(DIP-8)
M Package
(SOIC-8)
COMP
1
8
REF
VCC
FB
2
7
VCC
6
OUTPUT
CS
3
6
OUTPUT
5
GND
RT/CT
4
5
GND
COMP
1
8
REF
FB
2
7
CS
3
RT/CT
4
Figure 2. Pin Configuration of AP384XG (Top View)
Pin Description
Pin Number
Pin Name
Function
1
COMP
2
FB
The inverting input of the Error Amplifier. It is normally connected to the switching power
supply output through an external resistor divider.
3
CS
It is used either for current sense (normal mode) or skip cycle level selection (standby mode).
4
RT/CT
The oscillator frequency and maximum output duty cycle are programmed by connecting
resistor RT to REF and capacitor CT to ground.
5
GND
The ground pin.
6
OUTPUT
7
VCC
The power supply pin.
8
REF
This is the reference output. It provides charging current for capacitor CT through resistor RT.
This pin is the Error Amplifier output and is made available for loop compensation.
This output directly drives the gate of a power MOSFET. Peak currents up to 1.0 A are
sourced and sunk by this pin.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Functional Block Diagram
VCC
7
34V
GND
UVLO
8
5V
REF
S/R
5
INTERNAL
BIAS
2.50V
RT/CT
REF
VREF
GOOD
LOGIC
4
6
OUTPUT
OSC
OVER TEMP
PROTECT
S
ERROR
AMP
FB
COMP
CS
2R
R
2
1
R
1V
3
Q
Q
PWM
CURRENT LATCH
SENSE
COMPARATOR
Figure 3. Functional Block Diagram of AP384XG
Ordering Information
AP384XG
E1: Lead Free
G1: Green
Circuit Type
TR: Tape and Reel
Blank: Tube
Package
M: SOIC-8
P: DIP-8
Package
Temperature Range
SOIC-8
-40 to 85oC
DIP-8
o
Part Number
Lead Free
AP3842/3/4/5GM-E1
Marking ID
Green
Green
Packing
Type
3842/3/4/5GM-E1
3842/3/4/5GM-G1
Tube
AP3842/3/4/5GMTR-E1 AP3842/3/4/5GMTR-G1 3842/3/4/5GM-E1
3842/3/4/5GM-G1
Tape & Reel
-40 to 85 C AP3842/3/4/5GP-E1
AP3842/3/4/5GM-G1
Lead Free
AP3842/3/4/5GP-G1
AP3842/3/4/5GP-E1 AP3842/3/4/5GP-G1
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.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Absolute Maximum Ratings (Note 1, 2)
Parameter
Symbol
Value
Unit
VCC
30
V
IO
±1
A
V(ANA)
-0.3 to 6.3
V
Error Amp Output Sink Current
ISINK(E.A)
20
mA
Power Dissipation at TA< 25 oC (DIP-8)
PD (Note 3)
1000
mW
Power Dissipation at TA<25 oC (SOIC-8)
PD (Note 3)
460
mW
TSTG
-65 to 150
oC
TA
-40 to 85
oC
TLEAD
+300
oC
300
V
Supply Voltage
Gate Output Current
Analog Inputs (pin2, 3)
Storage Temperature Range
Ambient Temperature
Lead Temperature (Soldering, 10sec)
ESD (Machine Model)
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 Maximum Ratings" for extended
periods may affect device reliability.
Note 2: All voltages are with respect to pin GND and all currents are positive into specified terminal.
Note 3: Board thickness 1.6mm, board dimension 90mm x 90mm.
Recommended Operating Conditions
Parameter
Symbol
Oscillation Frequency
f
Ambient Temperature
TA
Min
-40
Max
Unit
500
KHz
85
oC
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Electrical Characteristics
(VCC=15V, RT=10kΩ CT=3.3nF, TA=25oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
4.95
5.00
5.05
V
REFERENCE SECTION
Reference Output Voltage
VREF
Total Output Variation
TA=25oC, IREF=1mA
Line, Load, Temp.
5.10
V
Line Regulation
ΔVREF
12V ≤ VCC ≤25V
4
15
mV
Load Regulation
ΔVREF
1mA ≤ IREF ≤20mA
4
15
mV
-100
-180
mA
Short Circuit Output Current
ISC
Temperature Stability
4.9
TA=25oC
(Note 6)
0.3
mV/oC
UNDER VOLTAGE LOCK OUT SECTION
Start-up Threshold
AP3842G/AP3844G
15
16
17
AP3843G/AP3845G
7.8
8.4
9.0
AP3842G/AP3844G
8.5
10
11.5
AP3843G/AP3845G
7.0
7.6
8.2
AP3842G/AP3844G, VCC=14V
50
80
AP3843G/AP3845G, VCC=6.5V
50
80
Operating Current
VFB=0, VCS=0, CL=1nF
8
mA
Standby Operating Current
VFB=2.7V, VCS=0.5V
6
mA
Zener Voltage
ICC=25mA
30
34
V
AP3842G/AP3843G
94
96
%
AP3844G/AP3845G
46
48
Minimum Operating Voltage
V
V
TOTAL STANDBY CURRENT SECTION
Start-up Current
μA
PWM SECTION
Maximum Duty Cycle
Minimum Duty Cycle
50
0
%
57
KHz
OSCILLATOR SECTION
Oscillation Frequency
f
Oscillator Amplitude
VOSC
TA=25oC
Pin RT/CT, peak to peak
47
Temperature Stability
Voltage Stability
12V ≤ VCC ≤ 25V
Discharge Current
VRT/CT = 2V (Note 4)
8.5
52
1.7
V
2
%
0.2
1
%
9.5
10.5
mA
Note 4: This parameter is measured with RT=10kΩ to VREF, it contributes 0.3mA of current to the measured value.
So the total current flowing into the CT pin will be 0.3mA higher than the measured value approximately.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Electrical Characteristics (Continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
2.55
V
ERROR AMPLIFIER SECTION
Input Voltage
Output Sink Current
Output Source Current
VI
VCOMP=2.5V
2.45
2.50
ISINK
VCOMP=1.1V
6
10
mA
-0.5
-0.8
mA
ISOURCE
VCOMP=5V
High Output Voltage
VOH
RL=15kΩ to GND
Low Output Voltage
VOL
RL=15kΩ to pin REF
Voltage Gain
Power Supply Rejection Ratio
PSRR
5
7
0.7
V
1.1
V
2V ≤ VO ≤ 4V
65
90
dB
12V ≤ VCC ≤ 25V
60
70
dB
VCOMP=5V (Note 5)
0.9
1
1.1
V
0V ≤ VCS ≤ 4V (Note 5, 6)
2.85
3
3.15
V/V
CURRENT SENSE SECTION
Maximum Input Signal
Gain
VI(MAX)
GV
Power Supply Rejection Ratio
PSRR
Delay to Output
Input Bias Current
IBIAS
Leading Edge Blanking Duration
TLEB
12V ≤ VCC ≤ 25V (Note 5, 7)
70
VCS= 0 to 2V (Note 7)
150
250
ns
-3
-10
μA
VOUTPUT=High
dB
250
ns
OUTPUT SECTION
Low Output Voltage
High Output Voltage
VOL
VOH
Rise Time
tR
Fall Time
tF
ISINK = 20mA
0.2
0.4
V
ISINK = 200mA
1.4
2.2
V
ISOURCE = 20mA
13
13.5
V
ISOURCE = 200mA
12
13
V
CL=1nF
150
250
ns
TA=25 C, CL=1nF
50
150
ns
200
220
μA
TA
=25oC,
o
SKIP CYCLE MODE SECTION
Source Current (@CS)
VOUTPUT=Low, TA=25oC
180
OVER-TEMPERATURE PROTECT SECTION
Shutdown Temperature
TSHUT
155
o
Temperature Hysteresis
THYS
25
oC
SOIC-8
18
oC/W
DIP-8
12
Thermal Resistance
(Junction to Case)
θJC
C
Note 5: Parameters are tested at trip point of latch with Vpin2 = 0.
Note 6: Here gain is defined as:
ΔVPin 1
A=
, 0 ≤ Vpin3 ≤ 0.8V
ΔVPin 3
Note 7: These parameters, although guaranteed, are not 100% tested in production.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Electrical Characteristics (Continued)
VREF
4.7k
1k
ERROR AMP
ADJUST
RT
A
1
COMP
REF
8
2
FB
VCC
7
VCC
100k
0.1μF
5k
4.7k
AP3842G
2N2222
ISENSE
ADJUST
3
CS
4
RT/CT
OUTPUT
6
GND
5
CT
1K
1W
OUTPUT
0.1μF
GND
Figure 4. Basic Test Circuit
Figure 4 is the basic test circuit for AP384XG. In testing, the high peak currents associated with capacitive loads
necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to pin 5 in a
single point ground. The transistor and 5k potentiometer are used to sample the oscillator waveform and apply an
adjustable ramp to pin 3.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Typical Performance Characteristics
100k
30
50K
n
=1
RT (Ω)
CT
CT
3
nF
0
=1
10k
F
0
=1
CT
Dead Time (μs)
10
0n
1
F
5K
0.3
1
2.2
4.7
10
22
100
100
47
1k
10k
1M
Figure 6. Timing Resistor vs. Frequency
Figure 5. Oscillator Dead Time vs. Timing Capacitor
80
5.015
5.010
100k
Frequency (Hz)
Timing Capacitor (nF)
VCC=15V, IO=1mA
70
Start-up Current (μA)
Reference Voltage (V)
AP3843G/45G
5.005
5.000
4.995
4.990
50
AP3842G/44G
40
30
20
4.985
4.980
-40
60
10
0
-20
0
20
40
60
80
100
0
120
o
2
4
6
8
10
12
14
16
18
Supply Voltage (V)
Ambient Temperature ( C)
Figure 7. Reference Voltage vs. Ambient Temperature
Figure 8. Start-up Current vs. Supply Voltage
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Typical Performance Characteristics (Continued)
90
4.0
80
3.5
Voltage Gain (dB)
Saturation Voltage (V)
2.5
2.0
1.5
1.0
50
40
30
20
0.0
10
-0.5
50
100
150
200
250
300
350
400
450
500
550
0
10
600
Output Sink Current (mA)
VCC=15V, TA=25 C
60
0.5
0
o
70
o
VCC=15V, TA=25 C
3.0
100
1k
10k
100k
1M
Frequency (Hz)
Figure 9. Output Saturation Characteristics
Figure 10. Error Amplifier Open-Loop Frequency Response
90
Start-up Current (μA)
80
70
AP3842G/44G, VCC=14V
60
50
AP3843G/45G, VCC=6.5V
40
30
-40
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Figure 11. Start-up Current vs. Ambient Temperature
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Typical Application
NTC
C14
100μ/400V
C2
0.01μ
600V
+
R20
1M
R2
1.2M
JP1
AC
90 to 264V
R3
39k
2W
R19
10
C15
2.2n
D3
8TQ100
T
D1
FR107
C1 47μ
L3
10μ
C10
1000μ
R21
3k
+
C9
2200μ
D2
1N4001
7
JP2
12V/5A
C3
0.1μ
Vcc
VCC
REF
8
R12
100
R5
10k
2
FB
1
COMP
5
GND
C5
220p
RT/CT
4
OUTPUT
6
R14
130k
CS
3
C4
3.3n
C8
0.22μ
R6
10
R7
2k
C6
220p/600V
R15
100
C7
680p
Z1
1N5819
R16
8.2k
Q1
IRF830
U3
AZ431
U1
AP384XG
R13
15k
Z2
SA12A
+
+
R4 4.7
C11
1μ
W1
1k
R10
0.51/1W
R9
10k
R18
1k
R17
2k
R11
820
U2 PC817
Figure 12. Typical Application of AP384XG in AC/DC Converter
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Mechanical Dimensions
SOIC-8
4.700(0.185)
5.100(0. 201)
7°
Unit: mm(inch)
0.320(0. 013)
TYP
1.350(0.053)
1.750(0.069)
8°
8°
7°
0.675(0.027)
0.725(0.029)
D
5.800(0. 228)
6.200(0. 244)
1.270(0. 050)
TYP
D
20:1
0.300(0.012)
R0.150(0.006)
0.100(0.004)
Option 1
0°
8°
1.000(0. 039)
TYP
3.800(0.150)
4.000(0.157)
Option 1
0.300(0.012)
0.150(0. 006)
0.250(0. 010)
1°
7°
0.510(0.020)
0.900(0. 035)
TYP
Option 2
R0.150(0.006)
0.450(0. 017)
0.800(0. 031)
0.350(0.014)
TYP
Note: Eject hole , oriented hole and mold mark is optional.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
11
Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Mechanical Dimensions (Continued)
DIP-8
Unit: mm(inch)
0.700(0.028)
7.620(0.300)TYP
1.524(0.060) TYP
6°
5°
6°
3.200(0.126)
3.600(0.142)
3.710(0.146)
4.310(0.170) 4°
4°
0.510(0.020)MIN
3.000(0.118)
3.600(0.142)
0.204(0.008)
0.360(0.014)
8.200(0.323)
9.400(0.370)
0.254(0.010)TYP
2.540(0.100) TYP
0.360(0.014)
0.560(0.022)
0.130(0.005)MIN
6.200(0.244)
6.600(0.260)
R0.750(0.030)
Φ3.000(0.118)
Depth
0.100(0.004)
0.200(0.008)
9.000(0.354)
9.600(0.378)
Note: Eject hole, oriented hole and mold mark is optional.
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
12
Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Mounting Pad Layout
SOIC-8
Unit: mm(inch)
Grid
placement
courtyard
G
Z
Y
E
X
Dimensions
Z
(mm)/(inch)
G
(mm)/(inch)
X
(mm)/(inch)
Y
(mm)/(inch)
E
(mm)/(inch)
Value
6.900/0.272
3.900/0.154
0.650/0.026
1.500/0.059
1.270/0.050
BCD Semiconductor Manufacturing Limited
Jul. 2013 Rev. 2. 0
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No.176,Analog
Sec. 2, Gong-Dao
5th Road, Corporation
East District Shenzhen Office
48460
Kato
CARoad,
94538,
USA District,
Room
101-1112,
II, 486
Sin-dong,
Advanced
Circuits (Shanghai)
4F,Road,
298-1,Fremont,
Rui Guang
Nei-Hu
Taipei,
30920
Huntwood
Hayward,
Tel:
+86-755-8826
7951
+886-2-2656
2808
Tel
:94544,
+1-510-324-2988
HsinChu
300, Taiwan,
R.O.C 3rd Fuzhong Road, Futian District, Shenzhen 518026, China
Tel:Tel:
+1-510-668-1950
Yeongtong-Gu,
Suwon-city,
Gyeonggi-do, Korea
Room
E, City
5F, Noble
Center, No.1006,
Taiwan
CA
U.S.A
Fax:
+86-755-8826
7865
Fax:
+886-2-2656
2806
Fax:
+1-510-324-2788
Tel:
+886-3-5160181,
Fax:
+886-3-5160181
Fax:
+1-510-668-1990
Tel:
+82-31-695-8430
Tel: +86-755-8826 7951
Tel: +886-2-2656 2808
Tel : +1-510-324-2988
Fax: +86-755-8826 7865
Fax: +886-2-2656 2806
Fax: +1-510-324-2788