BCD AP4340ZTR-G1 Dynamic psr accelerator fast detector of supply voltage Datasheet

Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
General Description
Features
The AP4340 is an output voltage detector for Primary
Side Control System. It detects the output voltage and
provides a periodical signal when the output voltage
is lower than a certain threshold. The periodical
signal can be coupled by the transformer to the
primary side and provided as an awakening signal for
the main primary side controller. By fast response to
secondary side voltage, the AP4340 can effectively
improve the transient performance of Primary Side
Control System.
•
•
•
The AP4340 is available in TO-92 and SOT-23
packages.
·
TO-92 (Bulk Packing)
Fast Detector of Supply Voltages
37kHz Output Pulse
No External Components
Applications
·
Adapters/Chargers for Cell/Cordless Phones,
ADSL Modems, MP3 and Other Portable
Apparatus
Standby and Auxiliary Power Supplies
TO-92 (Ammo Packing)
SOT-23
Figure 1. Package Types of AP4340
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
1
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Pin Configuration
Z Package
(TO-92 Bulk Packing)
Z Package
(TO-92 Ammo Packing)
3
OUT
2 GND
2
GND
1
1
VCC
3
OUT
VCC
N Package
(SOT-23)
3
1
2
Figure 2. Pin Configuration of AP4340 (Top View)
Pin Description
Pin Number
Pin
Name
TO-92
SOT-23
1
1
VCC
3
2
OUT
2
3
GND
Aug. 2011
Function
This pin is the positive supply voltage input. VCC signal is also used
to detect the secondary output voltage
This pin supplies the pulse output current when VCC is lower than
the internal trigger voltage
This pin is the control ground
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
2
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Functional Block Diagram
VCC
3 (2)
1 (1)
OUT
VDD
Driver
Power
Regulator
Dynamic
-
Logic
Out Comp
VREF
+
OSC
+
VREF
UVLO
VDD
Band-Gap
VREF
-
UVLO
2 (3)
GND
A (B)
A for TO-92
B for SOT-23
Figure 3. Functional Block Diagram of AP4340
Ordering Information
AP4340
G1: Green
Circuit Type
Blank: Bulk
TR: Tape & Reel or Ammo
Package
Z: TO-92
N: SOT-23
Package
Temperature Range
Part Number
Marking ID
Packing Type
AP4340Z-G1
4340Z-G1
Bulk
AP4340ZTR-G1
4340Z-G1
Ammo
AP4340NTR-G1
GT2
TO-92
-40 to 85°C
SOT-23
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
3
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Absolute Maximum Ratings (Note 1)
Parameter
Value
Unit
Supply Voltage VCC
-0.3 to 9
V
Voltage at OUT
-47 to 9
V
-0.6 to 47
V
Internally limited
A
VCC to VOUT
Output Current at OUT
Power Dissipation at TA=25ºC
SOT-23
0.2
TO-92
0.5
Operating Junction Temperature
Storage Temperature
150
ºC
-65 to 150
ºC
300
ºC
Lead Temperature (Soldering, 10 sec)
Thermal Resistance Junction-to-Case
W
SOT-23
137
TO-92
83
ºC/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 indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Supply Voltage
VCC
0
6
V
Ambient Temperature
TA
-40
85
ºC
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
4
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Electrical Characteristics
VCC=5V, TA=25℃, unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Unit
4.1
4.4
4.8
V
50
200
245
µA
50
240
285
µA
Power-off Voltage
3.45
3.8
4.15
V
Internal Trigger Voltage
4.83
4.9
5
V
Supply Voltage ( VCC Pin )
Power-on Voltage (VON)
Startup Current
Operating Current
VCC=VON-0.2V
OUT pin floating
VCC=5V
Output Section/ Oscillator Section
Duty Cycle
VCC=4.5V
1.5
5
6.5
%
Normal Frequency
VCC=4.5V
OUT pin connect
100Ω to GND
25
38
50
kHz
15
23
30
mA
Output Maximum Current
Note 2: The system output voltage is 5V.
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
5
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Typical Performance Characteristics
270
4.40
260
4.39
Operating Current (µA)
Power-on Voltage (V)
250
4.38
4.37
4.36
4.35
4.34
4.33
4.32
-40
240
230
220
210
200
190
180
-20
0
20
40
60
80
100
170
-40
120
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
o
Ambient Temperature ( C)
Figure 5. Operating Current vs.
Ambient Temperature
4.10
4.88
4.05
4.87
4.00
4.86
Internal Trigger Voltage (V)
Power-off Voltage (V)
Figure 4. Power-on Voltage vs. Ambient Temperature
3.95
3.90
3.85
3.80
3.75
3.70
3.65
3.60
-40
4.84
4.83
4.82
4.81
4.80
4.79
-20
0
20
40
60
80
100
4.78
-40
120
o
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Ambient Temperature ( C)
Figure 6. Power-off Voltage vs. Ambient Temperature
Aug. 2011
4.85
Figure 7. Internal Trigger Voltage vs.
Ambient Temperature
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
6
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Typical Performance Characteristics (Continued)
45.0
5.50
Oscillation Frequency (kHz)
42.5
Duty Cycle (%)
5.25
5.00
4.75
40.0
37.5
35.0
32.5
30.0
-40
4.50
-40
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
o
Ambient Temperature ( C)
Figure 8. Duty Cycle vs. Ambient Temperature
Figure 9. Oscillation Frequency vs.
Ambient Temperature
38
36
Output Current (mA)
34
32
30
28
26
24
22
20
18
-40
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Figure 10. Output Current vs. Ambient Temperature
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
7
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Operation Description
Figure 11. Typical Waveforms of AP4340
When VCC voltage is beyond 4.4V, the AP4340 starts up. When the VCC voltage falls below the internal trigger
voltage (4.9V), the OUT pin asserts a periodical pulse with frequency of 37kHz. The pulse signal will stop when
VCC voltage increases up to the trigger voltage. When the VCC voltage is below 3.8V, the AP4340 will be shut
down.
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
8
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Typical Application
Figure 12. Typical Application of AP4340
Aug. 2011
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
9
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Mechanical Dimensions
TO-92(Bulk Packing)
Unit: mm(inch)
1.000(0. 039)
3.430(0. 135)
MIN
3.700(0.146)
3.300(0.130)
1.400(0. 055)
0.320(0. 013)
0.510(0. 020)
0. 000(0. 000)
0. 380(0. 015)
Φ1. 600(0. 063)
MAX
4.700(0.185)
1.270(0. 050)
TYP
Aug. 2011
15.500(0.610)
0.360(0. 014)
0.760(0. 030)
12.500(0.492)
4.300(0.169)
4.400(0. 173)
4.800(0. 189)
2.420(0. 095)
2.660(0.105)
Rev. 1. 1
BCD Semiconductor Manufacturing Limited
10
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Mechanical Dimensions (Continued)
TO-92 (Ammo Packing)
Aug. 2011
Rev. 1. 1
Unit: mm(inch)
BCD Semiconductor Manufacturing Limited
11
Preliminary Datasheet
DYNAMIC PSR ACCELERATOR
AP4340
Mechanical Dimensions (Continued)
SOT-23
Aug. 2011
Rev. 1. 1
Unit: mm(inch)
BCD Semiconductor Manufacturing Limited
12
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