PT8A3301AWEX Datasheet PT8A3302AWE, PT8A3303AWEX, PT8A3301APE | P1-P3

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Ceramic Heat Controller

12-07-0006 PT0284-1 07/06/12

1

PT8A330xA/B

Features

 High watt density Alumina Heaters

 High current pulse trigger for SCR

 Quickly Heating-Up and Quickly Lost-Heat-

Recover

 Dual voltage 120VAC / 240VAC

 Internal 5v zener

 Insensitive to environment temperature

 Auto power off（Optional）

 DIP-8 and SOIC-8 package

Description

The PT8A330X is specially designed for ceramic

heating control system. It can set the temperature

continuously .It can drive SCR directly and detect the

heater temperature without extra temperature sensor.

It will start heat after power on and has one LED for

working state indication. Build-in timer will

automatically power off after turn on for 1 hour @

60Hz or 1.2 hour @ 50Hz (for PT8A3300/1).

Applications

 Ceramic heating controller

Pin Configuration

Pin Description

Name

Pin No.

Type

Description

VDD

1

power

Power input or can be used as OFF push button input

PTC

2

I

Temperature sensor input

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

Power Ground

GATE

8

O

SCR trigger output, active high

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12-07-0006 PT0284-1 07/06/12

2

PT8A330xA/B

Ceramic Heat Controller

Block Diagram

Maximum Ratings

Storage Temperature ................................................................................... -55

o

C to +150

o

C

Supply Voltage to Ground Potential (Input & V

DD

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

Recommended operation conditions

Symbol

Description

Min

Type

Max

Unit

T

A

Operation Temperature

-20

-

+85

C

V

DD

Supply voltage

4.0

4.5

5.0

V

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.

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12-07-0006 PT0284-1 07/06/12

3

PT8A330xA/B

Ceramic Heat Controller

Electrical Characteristics (V

DD

= 4.5, T

A

= -20 ~ 85ºC, unless otherwise noted)

DC Electrical Characteristics

Symbol

Description

Test Conditions

Min

Type

Max

Unit

I

IH

Input high current

PIN: PTC ,CLK

V

IN

= V

DD

-

5

A

I

IL

Input low current

PIN: PTC ,CLK,

REF

V

IN

= GND

-

-5

A

R

REF

The resistor between

REF and GND

PIN: REF

V

IN

= 1V

20

47

80

K

Ohms

I

OH

Output High Current

PIN: GATE

V

DD

= 4.5V

V

OUT

= 2.5V

-15

-

mA

I

OL

Output Low Current

PIN: GATE

V

DD

= 4.5V

V

OUT

=0.5V

4.0

-

mA

IVB

SHO

RT

Output short current

PIN: VB, VB short to GND

IC No

break

-

mA

R

ON_VB

Resistor of switch on

PIN: VDD to VB

V

DD

= 4.5V

I

OUT

= 100mA

-

15

Ohms

R

OFF_VB

Resistor of switch off

PIN: VDD to VB

V

DD

= 4.5V

I

OUT

<1uA

5M

-

－

Ohms

R

ON_TS

Resistor of Rma_TSet

PIN: VB to REF

V

DD

= 4.5V

I

OUT

= 50uA

35

-

65

K

ohms

I

OH

Output High Current

PIN: LED

V

DD

= 4.5V

V

OUT

= 3.5V

-3

-

mA

I

OL

Output Low Current

PIN: LED

V

DD

= 4.5V

V

OUT

=1.5V

5

-

mA

Power Supply Characteristics

Symbol

Description

Test Conditions

Min

Type

Max

Unit

V

POR

Voltage of POR

-

2.0

-

3.0

V

I

DD

Current consumption

No loading, V

DD

= 4.5V

(Internal zener doesn’t work)

-

200

400

A

V

DD

Supply voltage

I

DD

=0.3~10mA (according to the zener

inside)

Control function normal

4.0

-

5.5

V

TPO

off

Power off timer

F

CLK

= 50Hz

1.15

1.2

1.25

Hour

PT8A3301AWEX

PT8A3301AWEX

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