PT8A3230 Datasheet, PDF (1/7 Pages) Pericom Semiconductor Corporation – Heating Controller

PT8A3230/1/2/3/4/5/6/7
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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
 Direct drive SCR
 Auto Heating off after heating timer timeout
 Low cost 8-Pin DIP and SOIC package
Applications
 Hair Curler
The PT8A3230/1/2/3/14/5/6/7 is a mixed signal
CMOS LSI chip designed for the automatic controller of
heat with external NTC (Negative Temperature
Component). NTC open protection is implemented for
device safety. When NTC is open, it will cut off GATE
output to disable heating, and the LED1 will flash at 1/8
CLK.
The device can be used in both 120V and 240V
power line supplier, automatically adjusting the heating
power according to the power line voltage to avoid
heating appliance damage.
Pin Configuration
IC01-P10/1/2/3
N TC1 1
8
N TC2 2
7
C LK
3
6
G ND 4
5
V DD
OFF
G ATE
ON
IC01-14/5/6/7
N TC1 1
8
N TC2 2
7
C LK
3
6
G ND 4
5
V DD
LED
G ATE
O N/O FF
PT8A3230/1/2/3
PT8A3234/5/6/7
Pin Description
Pin Name
I/O
No.
PT8A323 PT8A323 PT8A323
PT8A323
0/1/2/3
4/5/6/7
0/1/2/3
4/5/6/7
Description
1
NTC1
NTC1
I
I
NTC voltage input, NTC open detection input.
2
NTC2
NTC2
O
O
Output signal for NTC open detection.
3
CLK
CLK
I
I
Clock input from power line.
4
GND
GND
GND
GND Ground.
5
ON
ON/OFF
I/O
I/O
Heating-on button input for PT8A3230/1/2/3 or Heating-
on/off input for PT8A3234/5/6/7 and LED driving output.
6
GATE
GATE
O
O
SCR trigger output, active high.
7
OFF
LED
I/O
Heating-off button input and LED2 driving output for
O
PT8A3230/1/2/3 or only LED2 driving output for
PT8A3234/5/6/7.
8
VDD
VDD
Power
Power Power.
12-07-0006
PT0211-6
07/06/2012
1