PT8A2536ENEX [DIODES]
Analog Circuit,;
| 型号： | PT8A2536ENEX |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Analog Circuit, |
| 文件： | 总10页 (文件大小：282K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT8A2524-26/34-36/44-46
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Universal Timer Controller
Description
Features
●
●
●
Auto-shut off output once time-out
Button to ON/OFF/RESET timer
Available timer with high precision same as AC
50/60hz
Universal timer is a mixed signal CMOS IC
designed for a fixed timer to drive external RELAY to
implement safety power control. It is applied to
120V/240V and 50/60Hz AC power supply. It can
automatically shut-off load in order to prevent undesired
conditions from the system. Internal timer can present
several kinds of different time: 15mins, 30mins, 45mins,
1hr, 1.5hrs, 2hrs, 4hrs and 8hrs, which is decided by part
number.
●
●
●
●
●
●
Build-in RC oscillator
Drive external RELAY
Support 50/60Hz by part
Quick Test Mode (QTM) for manufacturer
Available timer of 15/30/45/60/90/120/240/480min
Buzzer function(PT8A2524/25/34/35/44/45
Optional)
Applications
•
Universal Timer Controller
●
Low cost lead free package: TO94-4 or DIP-8 or
SOIC-8
Pin Configuration
PT8A2524/5/6A-H
PT8A2534/5/6A-H
TO94-4(Top View)
PT8A2544/5/6
DIP-8 or SOIC-8
(Top View)
Pin Description
PT8A2524/5/6A-H, PT8A2534/5/6A-H
Pin Name
GND
Pin No
I/O
Pin Description
1
2
3
4
-
Ground
DISC
I/O Control output if discharging external capacitor and button input, high active
I/O RELAY output and button input, high active
RELAY
VCC
-
Power supply
PT8A2544/5/6
Pin Name
TS2
Pin No.
I/O
Pin Description
Timer selection pins(TS2 TS1 TS0 from 000~111)
000: 15m, 001: 30m, 010: 45m, 011: 60m,
100: 90m, 101: 120m,110: 240m,111: 480m
Default 011 by TS2 internal pull down, TS1&TS0 internal pull up
1
2
3
4
5
6
I
I
TS1
TS0
GND
I
-
Ground
DISC
I/O
I/O
Control output if discharging external capacitor and button input, high active
RELAY output and button input, high active
RELAY
50/60Hz selection pin: default is 60Hz by internal pull down; connecting to VCC is
50Hz.
Power supply
ACSEL
VCC
7
8
I
-
2013-12-0013
PT0266-5
01/03/14
1
PT8A2524-26/34-36/44-46
Universal Timer Controller
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Maximum Ratings
Note:
o
o
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
Storage Temperature...................................................................................... -40 C to +125 C
Supply Voltage to Ground Potential (Input & VCC Only)...............-0.5V to VCC + 0.5V
Supply Voltage to Ground Potential (Output s & D/O Only)........-0.5V to VCC + 0.5V
DC Input Voltage ......................................................................................-0.5V to VCC + 0.5V
DC Output Current...................................................................... 20mA
Power Dissipation.............................................................................................................500mW
Recommended operation conditions
Symbol
VCC
Parameter
Min
4.2
0
Typ
4.7
25
Max
5.2
85
Unit
V
℃
Operating Voltage
Operating temperature
TA
Electrical Characteristics
Test Conditions
Sym
Parameter
Min
Typ
Max
Unit
VCC
-
Condition
VCC
VTH
IOH
Shunt Regulator output voltage
Input threshold(RELAY/DISC)
Output Source Current (RELAY/DISC)
Output Sink Current (RELAY/DISC)
Power supply current
ICC =1mA
4.2
0.3
-0.3
0.5
-
4.7
0.35
-0.5
-
5.2
0.4
-1
V
V
5V
5V
5V
4.0V
5V
-
V OH=0.7V
mA
mA
mA
KHz
IOL
V OL=0.5V
-
ICC
-
-
0.5
160
FOSC
Frequency of internal oscillator
-
96
128
Block Diagram
ACSEL
GND
Reference
circuit
Clock extracting
circuit
Shunt
Regulator
VCC
Buttonsampling
circuit
Internal RC
Oscil lator
DISC
RELAYdriving
circuit
PBO
RELAY
Timer Chain
15/30/45/60m/90m/2h/4h/8h
2013-12-0013
PT0266-5
01/03/14
2
PT8A2524-26/34-36/44-46
Universal Timer Controller
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Functional Description (Note: In below description, “RELAY” presents a pin, while “relay” means a device.)
●
Clock extracting circuit
DISC is acti ve
32KHz with 25%duty
VCC is not only the power supply pin but also clock
source for internal precise timer. With the help of the
external circuit, the AC 50/60Hz clock signal can be
extracted to be used as timer clock source.
DISC
8ms
8ms
8ms
8ms
8ms
RELAY
RELAY i s acti ve
Driving signals of RELAY and DISC
●
Internal RC oscillator circuit
It is employed to create pulse driving signal for RELAY,
it is a completely internal RC oscillator with frequency
of about 128KHZ.
For PT8A2525/2535 one button (ON/OFF)
●
●
Timer chain
Button is tied to RELAY pin, once ON, once OFF.
Pressing button ON/OFF to turn on/off relay and
start/reset internal timer.
RELAY is active when the button is pressed at first time.
DISC is active when the button is pressed at second time.
DISC outputs Low when relay is ON.
Timer chain can be used to generate various timer
including 15/30/45/60/90/120/240/480min.
Button sampling circuit
With external buttons, ON/OFF/RESET function can be
realized. User can select one button with once ON, once
OFF or two buttons to turn ON or OFF separately, also
use one button to restart timer.
For PT8A2526/2536 two buttons (ON, OFF)
Button tied to DISC pin is for ON, Button tied to
RELAY pin is for OFF.
Pressing button ON to turn on relay and start internal
timer.
Pressing button OFF to turn off relay and reset internal
timer.
RELAY is active when button ON is pressed.
DISC is active when button OFF is pressed.
DISC will output a narrow pulse each 8ms when relay is
ON.
Button sampling circuit senses button’s operation 3 times
per 8ms. System will sample the button’s operation
during first 100ms after power on, if buttons are pressed
during this period, then system will start 3s timer to
check if the chip will enter into quick test mode (see test
mode section). If the related button is pressed over 3s
just after power on, chip will enter quick test mode as
soon as the button is released. If buttons are not pressed
during first 100ms, system will operate normally.
●
●
Buzzer
●
RELAY driving circuit
For PT8A2524/25/34/35/44/45, a buzzer will make 0.5s
sound with a frequency of 4KHz every 1s for 6 times
after internal timer times out. Pin DISC will output 4KHz
with 25% duty for 0.5s to let the buzzer work, then
output 32KHz with 25% duty for 0.5s, after the output 6
times 4KHz, DISC will keep output 32KHz.
RELAY driving signal is special, anytime, first 8ms is
always high following output pulse signal with about
32KHZ and 25% duty cycle.
DISC is used to limit the voltage of external high voltage
capacitor by discharging it with a NPN transistor.
After power on, DISC should be active during first 1s
before RELAY in order to charge the external high
voltage capacitor.
RELAY is active to output first 8ms high following
32KHz with 25% duty cycle. When relay is OFF,
RELAY will output a narrow pulse each 8ms, while,
DISC is active to output 32KHz with 25% duty cycle.
Quick Test Mode(QTM)
In order to make the manufacturer’s test convenient,
quick test mode is designed to speed up the test.
QTM can be accessed by pressing button (ON or
RESET) over 3s (option 2s) once power on. It can exit
automatically after quick test timer is expired, system
needs to power on again to come back normal operation
after quick test mode. Any button operations will be
ignored in QTM.
For PT8A2524/2534 one button (RESET)
Button is tied to RELAY pin.
Pressing button RESET to turn on relay and restart
internal timer.
RELAY is active once the button is released.
DISC will output low when relay is ON.
Note: For PT8A2526/2536, the button to be pressed over
3s to enter into QTM is OFF.
2013-12-0013
PT0266-5
01/03/14
3
PT8A2524-26/34-36/44-46
Universal Timer Controller
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Operation illustration of entering into and exiting Quick test mode
Compare Table: Real timer and QTM timer
Real Timer QTM Timer
Power on
>3s
15m
30m
45m
60m
90m
120m
4h
2s
4s
6s
8s
10s
12s
14s
16s
wi ll be i gnored
First PB ON
samplingtime
<100ms
Second PB ON
*12s for 2hrs
Quick test mode
Normal mode
3s warmup
8h
Application Circuit
TO94 Universal Timer to drive RELAY with one button
D2
R2
IN4007
6.8K 1/2W*
27K 1/2W*
R3
10K
C3
10uF/100V
LOAD
D1
R1
ACL
U1
24K 1/2W*
100K1/2W*
IN4007
PT8A2524/5-PT8A2534/5
Q1
2N5551
VCC
K1
2
D3
IN4007
DISC
C2
104
C1
22uF/16V*
3
RELAY
120V/240V
GND
Q2
2N5551
S1
RESETor ON/OFF
ACN
*Note1: For 120VAC power supply system, R1 value is 24K, R2 value is 6.8K.
For 240VAC power supply system, R1 value is 100K, R2 value is 27K.
Note2: C1 value range is 22uF to 68uF.
TO94 Universal Timerto drive RELAY&BUZ with one button
D2
R2
6.8K1/2W*
IN4007
LOAD
27K1/2W*
C3
10uF/100V
R3
1.8K
B1
20mm
VCC
D1
R1
ACL
U1
IN4007
24K1/2W*
100K1/2W*
K1
D3
PT8A2524/5_34/5
IN4148
R4
8.2K
VCC
2
DISC
3
120V/240V
C2
104
C1
22uF/16V*
RELAY
GND
Q2
2N5551
S1
Q1
RESET
or ON/OFF
2N5551
ACN
*Note1: For 120VAC power supply system, R1 value is 24K, R2 value is 6.8K.
For 240VAC power supply system, R1 value is 100K, R2 value is 27K.
Note2: C1 value range is 22uF to 68uF.
2013-12-0013
PT0266-5
01/03/14
4
PT8A2524-26/34-36/44-46
Universal Timer Controller
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TO94 Universal Timer to drive RELAY with two buttons
D2
R2
IN4007
6.8K 1/2W*
27K 1/2W*
R3
10K
C3
10uF/100V
LOAD
D1
R1
ACL
U1
24K 1/2W*
100K1/2W*
IN4007
PT8A2526-PT8A2536
Q1
2N5551
VCC
K1
2
D3
IN4007
DISC
C2
104
C1
22uF/16V*
3
RELAY
120V/240V
GND
Q2
S1
ON
2N5551
S2
OFF
ACN
*Note1: For 120VAC power supply system, R1 value is 24K, R2 value is 6.8K.
For 240VAC power supply system, R1 value is 100K, R2 value is 27K.
Note2: C1 value range is 22uF to 68uF.
DIP8 Universal Timer to drive RELAY with one button
D2
R2
6.8K1/2W*
IN4007
27K1/2W*
R3
10K
C3
10uF/100V
LOAD
VCC
D1
R1
ACL
IN4007
24K1/2W*
U1
TS2
100K1/2W*
1
2
3
4
8
7
6
5
VCC
ACSEL
RELAY
DISC
K1
D3
IN4007
TS1
TS0
Q1
2N5551
C2
104
120V/240V
C1
22uF/16V*
GND
PT8A2544/5PE
Q2
2N5551
S1
RESETor ON/OFF
ACN
*Note1: For 120VAC/60Hz power supply system, R1 value is 24K, R2 value is 6.8K, ACSEL is connected to GND or
floating.
For 240VAC/50Hz power supply system, R1 value is 100K, R2 value is 27K, ACSEL is connected to VCC.
*Note2: TS0, TS1 and TS2 are floating, the timer time out is 60 minutes.
Note3: C1 value range is 22uF to 68uF.
2013-12-0013
PT0266-5
01/03/14
5
PT8A2524-26/34-36/44-46
Universal Timer Controller
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DIP8 Universal Timer to drive RELAY&BUZwith one button
D2
R2
6.8K1/2W*
27K1/2W*
IN4007
B1
R3
C3
10uF/100V
LOAD
1.8K
VCC
D1
R1
Buzzer
ACL
IN4007
24K1/2W*
U1
TS2
100K1/2W*
1
2
3
4
8
7
6
5
VCC
ACSEL
RELAY
DISC
R4
8.2K
K1
D3
TS1
IN4148
TS0
C2
104
C1
22uF/16V
GND
120V/240V
PT8A2544/5PE
Q2
Q1
2N5551
2N5551
S1
RESET or ON/OFF
ACN
*Note1: For 120VAC/60Hz power supply system, R1 value is 24K, R2 value is 6.8K, ACSEL is connected to GND or
floating.
For 240VAC/50Hz power supply system, R1 value is 100K, R2 value is 27K, ACSEL is connected to VCC.
*Note2: TS0, TS1 and TS2 are floating, the timer time out is 60 minutes.
Note3: C1 value range is 22uF to 68uF.
DIP8 Universal Timer to drive RELAY with two buttons
D2
R2
10uF/100V
6.8K1/2W*
27K1/2W*
C3
IN4007
R3
10K
LOAD
VCC
D1
R1
ACL
IN4007
24K1/2W*
U1
TS2
100K1/2W*
1
2
3
4
8
7
6
5
VCC
ACSEL
RELAY
DISC
K1
D3
IN4007
TS1
TS0
Q1
2N5551
C2
104
120V/240V
C1
22uF/16V*
GND
PT8A2546PE
Q2
S1
ON
2N5551
S2
OFF
ACN
*Note1: For 120VAC/60Hz power supply system, R1 value is 24K, R2 value is 6.8K, ACSEL is connected to GND or
floating.
For 240VAC/50Hz power supply system, R1 value is 100K, R2 value is 27K, ACSEL is connected to VCC.
*Note2: TS0, TS1 and TS2 are floating, the timer time out is 60 minutes.
Note3: C1 value range is 22uF to 68uF.
2013-12-0013
PT0266-5
01/03/14
6
PT8A2524-26/34-36/44-46
Universal Timer Controller
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Mechanical Information
TO94-4L
2013-12-0013
PT0266-5
01/03/14
7
PT8A2524-26/34-36/44-46
Universal Timer Controller
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DIP-8L
2013-12-0013
PT0266-5
01/03/14
8
PT8A2524-26/34-36/44-46
Universal Timer Controller
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SOIC-8L
2013-12-0013
PT0266-5
01/03/14
9
PT8A2524-26/34-36/44-46
Universal Timer Controller
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Ordering Information
Ordering No.
PT8A2524xNE*
PT8A2525xNE*
PT8A2526xNE*
PT8A2534xNE*
PT8A2535xNE*
PT8A2536xNE*
PT8A2544PE*
PT8A2545PE*
PT8A2546PE*
PT8A2544WE
PT8A2545WE
PT8A2546WE*
Package Code
Package
Lead free TO-94
Lead free TO-94
Lead free TO-94
Lead free TO-94
Lead free TO-94
Lead free TO-94
Lead free DIP-8
Lead free DIP-8
N
N
N
N
N
N
P
P
P
W
W
W
Lead free DIP-8
Lead free and Green SOIC-8
Lead free and Green SOIC-8
Lead free and Green SOIC-8
Note:
z
z
z
z
“x” shows A~H with different Internal Timer, see below Suffix x: Internal Timer table.
E = Pb-free or Pb-free & Green
Adding X Suffix= Tape/Reel
*contact Pericom for availability.
Function Comparison Table
One/Two
50/60
Hz
One/Two
key
50/60
Hz
Part No
key
Button
Part No
Button
PT8A2524x
PT8A2525x
PT8A2526x
One
One
Two
Reset
On/Off
On, Off
50HZ
50HZ
50HZ
PT8A2534x
PT8A2535x
PT8A2536x
One
One
Two
Reset
On/Off
On, Off
60HZ
60HZ
60HZ
Part No
One/Two key
One
Button
50/60 Hz
Optional
Optional
Optional
Timer(min)
Optional
Optional
PT8A2544
PT8A2545
PT8A2546
Reset
On/Off
On, Off
One
Two
Optional
Suffix x: Internal Timer Table
Suffix
Internal
Timer(min)
A
B
C
D
E
F
G
H
15
30
45
60
90
120
240
480
Pericom Semiconductor Corporation y 1-800-435-2336 y www.pericom.com
Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply
the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The
company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.
2013-12-0013
PT0266-5
01/03/14
10
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