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Ver 1.0
BCT530X
Ceramic Heat Controller
General Description
BCT530x is designed for ceramic heating
control. It can set the temperature, drive SCR
directly, detect and control the heater
temperature by using heater itself without
temperature sensor. It has the option of keys to
turn on/off, adjust fast or slow heating up
speed, and indicate the working status by
different of LEDs, to meet customer needs.
Some are also build-in AC timer and it will
power off after turn on for 1 hour for 60Hz and
1.2 hour for 50Hz.
Applications
z Ceramic heating controller
Features
z Advanced Zero-triggered Circuit for better
EMC performance
z High current pulse trigger for SCR
z Quickly Heating-Up and Quickly Lost Heat
Recover
z Dual voltage (110VAC / 220VAC )
z Internal 5v zener
z Insensitive to environment temperature
z Auto power off（Optional）
z DIP-8 and SOIC-8 package
Ordering Information
1. With one or two keys option
Part No. Package
BCT530xLPE*
BCT530xLWE*
Low overshot when preheat
BCT530xHPE*
BCT530xHWE*
High overshot when preheat
Lead free 8-pin DIP
Lead free 8-pin SOIC
Lead free 8-pin DIP
Lead free8-pin SOIC
Note: : “x” is 0~7 with different function see Function Comparison Table.
Function Comparison Table
Part No.
LED
BCT5300H/L
Flash
BCT5301H/L
Constant
BCT5302H/L
Flash
BCT5303H/L
Constant
BCT5304H/L
Flash
BCT5305H/L
Constant
BCT5306H/L
Flash
BCT5307H/L
Constant
Timer
Y
Y
N
N
Y
Y
N
N
On/OFF Key
Two Key
Two Key
Two Key
Two Key
One Key
One Key
One Key
One Key
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Ver 1.0
2. With no key option
Part No. Package
BCT530xAPE*
BCT530xAWE*
BCT530xBPE*
BCT530xBWE*
High overshot when preheat
Low overshot when preheat
Lead free 8-pin DIP
Lead free 8-pin SOIC
Lead free 8-pin DIP
Lead free8-pin SOIC
Note: : “x” is 0~7 with different function see Function Comparison Table.
Function Comparison Table
Part No.
LED
Timer
On/OFF Key
BCT5300A/B
Flash
Y No Key
BCT5301A/B
Constant
Y
No Key
BCT5302A/B
Flash
N No Key
BCT5303A/B
Constant
N
No Key
Pin Configuration
Pin Description
Name Pin No.
VDD
1
PTC
2
VB
REF
LED
CLK
GND
GATE
3
4
5
6
7
8
Type
power
I
O
O
O
I
power
O
Description
Power input or OFF button in two key option
Temperature detect input or ON button in two key option
or ON/OFF button in one key option ,internal pull high
Sampling bias voltage
Reference for the internal comparator
LED indication output
Clock input from AC power line
Power Ground
SCR trigger output, active high
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Ver 1.0
Function description
1. High Current pulse triggering for SCR
z High trigger peak current (>15mA), enough to trigger 20A SCR
z Pulse triggering current to reduce the false self trigger by the leakage of SCR at high temperature
environment.
z Tal_GATE = 200us
2. Advanced Zero-triggered Circuit
z Digital way to calculate the Zero point, mor accurate
z Comparator will not need to detect small voltage or minus voltage, which will be effected by
interference of the AC line.
3. Reset
z After power on the chip will be reset by POR circuit,
z LED is disabled. GATE is low level.
4. Key option
z One key: (Only for BCT5304/5/6/7(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.
z Two key: (Only for BCT5300/1/2/3(H/L))
Have two buttons to toggle Heating-on and Heating-off respectively.
z NO key: (Only for BCT5300(A/B))
Have no key. Heat-on when plug in the power.
www.broadchip.com
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Total : 8 PagesDownload Full Datasheet PDF file |