PT8A330x
Ceramic Heating Controller
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Features
Description
High watt density Alumina Heaters
The PT8A330X is specially designed for ceramic
High current pulse trigger for SCR
heating control system. It can set the temperature
Quickly Heating-Up and Quickly Lost-Heat-
continuously .It can drive SCR directly and detect the
Recover
heater temperature without extra temperature sensor. It
Dual voltage 120VAC / 240VAC
has one key, two keys and no key for function setting
Internal 5v zener
and has one LED for working state indication. Build-in
Insensitive to environment temperature
timer will automatically power off after turn on for 1
Auto power off(Optional)
DIP-8 and SOIC-8 package
hour @ 60Hz or 1.2 hour @ 50Hz (for PT8A3300/1/4/5).
Applications
Ceramic heating controller
Pin Configuration
Pin Description
Name
Pin No.
Type
Description
VDD
1
power
PTC
2
I
Temperature sensor input and ON push button input in two key option or ON/OFF
toggle button in one key option
VB
3
O
Sampling bias voltage
REF
4
O
Reference for internal comparator
LED
5
O
LED driver output
CLK
6
I
Clock input from AC power line
GND
7
power
GATE
8
O
Power input or can be used as OFF push button input
Power Ground
SCR trigger output, active high
12-07-0006
PT0258-1
1
07/06/12
PT8A330x
Ceramic Heating Controller
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Block Diagram
Maximum Ratings
Storage Temperature ................................................................................... -55oC to +150oC
Supply Voltage to Ground Potential (Input & VDD Only).......................-0.5V to + 6.5V
Supply Voltage to Ground Potential (Output s Only) ..............................-0.5V to + 6.5V
DC Input Voltage ............................................................................................-0.5V to + 6.5V
Input/Output Current ...................................................................................50mA
Input/Output Current(Pin VDD, VBonly) ................................. 200mA
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 conditions above those indicated in the operational sections of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
Recommended operation conditions
Symbol
Description
Min
Type
Max
Unit
TA
Operation Temperature
-20
-
+85
C
VDD
Supply voltage
4.0
4.5
5.0
V
12-07-0006
PT0258-1
2
07/06/12
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PT8A330x
Ceramic Heating Controller
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Electrical Characteristics (VDD = 4.5, TA = -20 ~ 85ºC, unless otherwise noted)
DC Electrical Characteristics
Symbol
Description
Test Conditions
Min
Type
Max
Unit
IIH
Input high current
PIN: PTC ,CLK
VIN = VDD
-
-
5
A
IIL
Input low current
PIN: PTC ,CLK,
REF
VIN = GND
-
-
-5
A
RREF
The resistor between
REF and GND
PIN: REF
VIN = 1V
20
47
80
K
Ohms
IOH
Output High Current
PIN: GATE
V DD = 4.5V
VOUT = 2.5V
-15
-
-
mA
IOL
Output Low Current
PIN: GATE
V DD = 4.5V
VOUT =0.5V
4.0
-
-
mA
IVBSHO
Output short current
PIN: VB, VB short to GND
IC No
break
-
-
mA
RON_VB
Resistor of switch on
PIN: VDD to VB
ROFF_VB
Resistor of switch off
PIN: VDD to VB
RON_TS
Resistor of Rma_TSet
PIN: VB to REF
IOH
Output High Current
IOL
Output Low Current
RT
VDD = 4.5V
IOUT = 100mA
VDD = 4.5V
IOUT 1000V pulse amplitude
(Tr=5ns, Tw=50ns, Z=50 ohms, burst duration 15 ms,
burst period 300 ms, burst frequency 2,5 kHz)
2000
-
-
VPP
Temperature Control Characteristics
Symbol
Description
Test Conditions
Min
Type
Max
Unit
VT
Normal heat-up
Threshold Voltage
VDD = 4.5V
VREF=0.7V
Test GATE output about 50%
heating power
-
0.5(VB- VREF)
-
V
VT
VT
PT8A330xL
(x: 0~7)
VTH
Fast heat-up
Threshold Voltage
PT8A330xH
(x: 0~7)
VT(50C)
VOS_COMP
T-heat
ON/OFF key
detection Threshold
Voltage on Pin PTC
Input Offset Voltage
of Comparator
Heating cycle time
VDD=4.5V
VREF=0.7V
Test GATE
output about
50% heating
power
+0.4%(VBVREF)
+0.6%(VB-VREF)
VT
+0.8%(VBVREF)
V
VT
VT
VT
+1.9%(VBVREF)
+2.1%(VB-VREF)
+2.3%(VBVREF)
VDD = 4.5V
VREF=0.7V
Test GATE output about 50%
heating power
-
0.27(
VB- VREF )
-
V
Pin: PTC
-3mV
-
+3mV
mV
FCLK= 50Hz
-
200
-
ms
12-07-0006
PT0258-1
4
07/06/12
PT8A330x
Ceramic Heating Controller
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Function description
Constant (Only for PT8A3301/3/5/7)
The LED will keep lighting after turn-on
Input Button
One key: (Only for PT8A3304/5/6/7(H/L))
The PTC input will toggle Heating-on and Heating-off
key function. Once Heating-on the heater will rise to
the desired temperature.
Two key: (Only for PT8A3300/1/2/3(H/L))
Have two buttons to toggle Heating-on and Heatingoff respectively.
Timer
Reset
After power on the chip will be reset by POR circuit,
LED is disabled. GATE is low level.
Once push down the ON button and without pushing
down the OFF button during the heating-on state, the
internal timer will start to count ,After 216000 clock
period, the IC will power off the heater until pushing
down the ON button again. For the 60Hz CLK signal,
the maximal heating time is about 1 hour; and 1.2 hour
for 50Hz ( for PT8A3300/1/4/5).
One LED Indicator
Flash: (Only for PT8A3300/2/4/6)
When turn -on, the LED will flash (1.5Hz @50Hz
power CLK) to indicate the heater is being heated, and
keep lighting while reaching the desired temperature
High Current pulse triggering for SCR
LINE
50Hz
LINE
50Hz
POWER
POWER
200uS S
200μ
Tal_GATE
Tal_GATE
a. High trigger peak current (>15mA), enough to trigger 20A SCR
b. Pulse triggering current to reduce the false self trigger by the leakage of SCR at high temperature environment.
c. Tal_GATE = 200us
Timing
50Hz CLK
200μ S
GATE
100μ S
1.2mS
VB
0.8mS
4.8mS
LEVEL
80kOSC_EN
6mS
6mS
12-07-0006
PT0258-1
5
07/06/12
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PT8A330x
Ceramic Heating Controller
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Application Circuit
D2
R2
L
43K
1N4007
120/240 VAC
R3
510
C1
C2
0.1UF 47UF
R1
1M
D1
RL207
CLK
S1
SW-PB
C3
10NF
R4
8.2k
For two key option
QS
D3
R8
SCR
1N4007
R9
620
R6
3K
100
R10
U1
R11
D4
R13
VR1
R12
1N4007
Alumina Heater
S2
R5
100
GATA
8
VB
3
PTC
2
REF
4
GATE
VB
LED1
VDD
LED
PTC
CLK
REF
GND
1
VDD
5
LED
6
CLK
7
GND
PT8A330X
R7
3K
LED2
D5
N
1N4007
12-07-0006
PT0258-1
6
07/06/12
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PT8A330x
Ceramic Heating Controller
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Mechanical Information
PE (DIP-8)
Symbol
A
A1
A2
B
B1
c
D
E
E1
e
L
E2
Note:
1) Controlling dimensions in millimeters.
2) Ref : JEDEC MS-001D/BA
12-07-0006
Dimensions In Millimeters
Min
Max
3.710
4.310
0.510
3.200
3.600
0.380
0.570
1.524 BSC
0.204
0.360
9.000
9.400
6.200
6.600
7.320
7.920
2.540 BSC
3.000
3.600
8.400
9.000
PT0258-1
7
07/06/12
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PT8A330x
Ceramic Heating Controller
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WE (SOIC-8)
Symbol
A
A1
A2
b
c
D
E
E1
e
L
θ
Note:
1) Controlling dimensions in millimeters.
2) Ref : JEDEC MS-012E/AA
12-07-0006
Dimensions In Millimeters
Min
Max
1.350
1.750
0.100
0.250
1.350
1.550
0.330
0.510
0.170
0.250
4.700
5.100
3.800
4.000
5.800
6.200
1.27 BSC
0.400
1.270
0°
8°
PT0258-1
8
07/06/12
PT8A330x
Ceramic Heating Controller
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Ordering Information
Part No.
PT8A330xLPE*
PT8A330xLWE*
PT8A330xHPE*
PT8A330xHWE*
Package Code
P
W
P
W
Package
Lead free 8-pin DIP
Lead free and Green 8-pin SOIC
Lead free 8-pin DIP
Lead free and Green 8-pin SOIC
Note: *:
“x” shows 0~7 with different function see Function Comparison Table.
E = Pb-free or Pb-free & Green
Adding X Suffix= Tape/Reel
*Contact Pericom for availability.
Function Comparison Table
Part No.
PT8A3300H*
PT8A3300L*
PT8A3301H*
PT8A3301L*
PT8A3302H*
PT8A3302L*
PT8A3303H*
PT8A3303L*
PT8A3304H*
PT8A3304L
PT8A3305H
PT8A3305L
PT8A3306H*
PT8A3306L*
PT8A3307H
PT8A3307L
lED
Flash
Flash
Constant
Constant
Flash
Flash
Constant
Constant
Flash
Flash
Constant
Constant
Flash
Flash
Constant
Constant
Timer
Y
Y
Y
Y
N
N
N
N
Y
Y
Y
Y
N
N
N
N
Switch On/OFF
Two Key
Two Key
Two Key
Two Key
Two Key
Two Key
Two Key
Two Key
One Key
One Key
One Key
One Key
One Key
One Key
One Key
One Key
-
**VTH – VT
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
High overshot when preheat
Low overshot when preheat
Note:
*Contact Pericom for availability.
** Refer to page 4
Pericom Semiconductor Corporation 1-800-435-2336 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.
12-07-0006
PT0258-1
9
07/06/12
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