PT8A3295.pdf 데이터시트 (총 8 페이지) - 파일 다운로드 PT8A3295 데이타시트 다운로드

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PT8A3290/1/2/3/4/5/6/7
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Heating Controller
Features
Description
Dual Voltage (120V/240V) operations
Auto temperature control with NTC
NTC open protection
Multi mode LED indicator
Proportional control
Pulse trigger for high current SCR/TRIAC (up to
15mA)
Internal Zener
Auto Heating off after heating timer timeout
Low cost 8-Pin DIP and SOIC package
The PT8A3290/1/2/3/4/5/6/7 is a mixed signal
CMOS LSI chip designed as heating controller with help
of external NTC (Negative Temperature Component).
NTC open protection is implemented for device safety.
This device can be used in both 120V and 240V power
line supplier, as it will automatically adjust the heating
power according to the power line voltage to avoid
heating appliance damage or long heating time. The
proportional control algorithm is designed in this
product.
Applications
Curler
Straightener
Pin Information
PT 8A3270/1/2/3
PT 8A3290/1/2/3
PT 8A3274/5/6/7
PT 8A3294/5/6/7
NTC1
NTC2
CLK
GND
1
2
3
4
8 VDD NTC1 1
7 OFF
NTC2 2
6 GATE CLK 3
5 ON
GND
4
8 VDD
7 LED2
6 GATE
5 ON/OFF
NTC1
NTC2
CLK
GND
Pin Description
Pin No.
Pin Name
3290/1/2/3 3294/5/6/7
I/O
Description
1
NTC1
NTC1
I NTC voltage input, NTC open detection input
2
NTC2
NTC2
O Output signal for NTC open detection
3 CLK CLK I Clock input from power line
4
GND
GND
Power Ground and Power
5
ON
ON_OFF
I/O
3290/1/2/3: Heating-on button input. and LED1 driving output
3294/5/6/7: Heating-on/off button input and LED1 driving output
6
GATE
GATE
O TRIAC trigger output
7
OFF
LED2
I/O
3290/1/2/3: Heating-off button input and LED2 driving output
3294/5/6/7: LED2 driving output
8
VDD
VDD
Power Ground and Power
12-07-0006
PT0262-1 07/06/12
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PT8A3290/1/2/3/4/5/6/7
Heating Controller
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Block Diagram
NTC1
5Pbriet cAiDseC
ADC
NTC2
Controller
OOFFFF/T/LUERDBO2/LED2
GATE
CLK ON/ON_OFF/LED1
12-07-0006
PT0262-1 07/06/12
2

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PT8A3290/1/2/3/4/5/6/7
Heating Controller
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Maximum Ratings
StorageTemperature...................................................................................-65oC to +150oC
SupplyVoltage to Ground Potential(Input & VCC Only).......................-0.5Vto +5.5V
SupplyVoltage to Ground Potential(Outputs)..........................................-0.5Vto +5.5V
DC Input Voltage ............................................................................................-0.5Vto +5.5V
DC Output Current...................................................................... 20mA
Power Dissipation.........................................................................................................500mW
Note:
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.
Recommended operation conditions
Symbol Pin
Parameter
Min
Typ
Max
Unit
Frequency CLK
Input CLK Frequency
- 50/60 - Hz
TA -
Operating temperature
-20 -
85
AC Electrical Characteristics
(VDD = 3.5 ~ 5.5V, TA = -20 ~ 85ºC, unless otherwise noted)
Symbol
Description
Test Conditions
FCLK Frequency of CLK
-
TGATE Width of trigger pulse
-
Timer Power off timer
FCLK= 50Hz
Min
-
160
1.15
DC Electrical Characteristics
(VDD = 3.5 ~ 5.5V, TA = -20 ~ 85ºC, unless otherwise noted)
Symbol
Description
Test Conditions
Min
IIH Input high current
IIL Input low current
IOH
IOL
VPOR
Output High current
Output Low current
Voltage of POR
PIN: CLK
PIN: NTC1
PIN: NTC2
PIN: CLK
PIN: NTC1
PIN: NTC2
PIN: GATE
PIN: NTC2
PIN: GATE
VIN = VDD
VIN = VDD
VIN = VDD ,Output
High impedance
VIN = GND
VIN = 0.35V
VIN = GND
VIN = GND, Output
High impedance
V DD =4.5V
Vout = 2.5V
V DD =4.5V
Vout =0.5V
V DD =4.5V
Vout =0.5V
-
-
-
-
-
-
-
-
-15
2.0
5.0
1.5
VZ Voltage of Zener
IDD Current consumption
12-07-0006
IDD= 500uA ~ 10mA
NTC1,CLK pin tied to ground
V DD = 4.5V
3
4.5
-
Type
50/60
200
1.2
Max Unit
- Hz
240 S
1.25 Hour
Type
-
-
-
-
-
-
Max
1
100
100
-1
-10
-100
Un
it
A
nA
nA
A
A
nA
- -100 nA
-
-
m
A
-
-
m
A
-
-
m
A
- 2.5 V
5.0 5.5 V
- 500 A
PT0262-1 07/06/12