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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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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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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.
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5. LED Indicator
z Flash: (Only for BCT5300/2/4/6)
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
z Constant (Only for BCT5301/3/5/7)
The LED will keep lighting after turn-on
6. Timer
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 1 hour, the IC will power off the heater until pushing down
the ON button again.
7. Timing
Application Circuit
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ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage VCC........................................ ..............................................–0.5V to + 6V
DC Switch Voltage (VS)......................... ............................................–0.5V to VCC +0.5V
DC Input Voltage (VIN).............................. ...................................................–0.5V to + 6V
Storage Temperature Range (TSTG) ....... ................... ........................... –65°C to +150°C
Junction Temperature under Bias (TJ) ...... ..................................................…........ 150°C
Junction Lead Temperature (TL) (Soldering, 10 seconds) ....................................... 260°C
Power Dissipation (PD) @ +85°C .................................... ......................................180mW
Note 1:Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only
rating and operation of the device at these or any other conditions beyond those indicated in the
operational sections of this specification is not implied.
Electrical Characteristics
DC Electrical Characteristics
Symbol
Description
Test Conditions
Min Typ Max Unit
IIH Input high current PIN: CLK
VIN = VDD
- - 5 µA
PIN: PTC ,CLK,
IIL Input low current
VIN = GND
REF
- - -5 µA
RREF
The resistor
PIN: REF
between REF and GND
VIN = 1V
20 47 80 KOhms
RPTC
The resistor
between PTC and GND PIN : PTC
160 220 280 KOhms
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 - - mA
Output short
IVBSHORT
current
PIN: VB, VB short to GND
IC No
-
break
-
mA
Resistor of switch
VDD = 4.5V
RON_VB
PIN: VDD to VB
on IOUT = 100mA
-
- 15 Ohms
Resistor of switch
VDD = 4.5V
ROFF_VB off
PIN: VDD to VB IOUT <1uA
5M - － Ohms
Resistor of
RON_TS
Rma_TSet
PIN: VB to VDD = 4.5V
K
35 - 65
REF IOUT = 50uA
ohms
IOH Output High Current PIN: LED
VDD = 4.5V
VOUT = 3.5V
-3 - - mA
IOL Output Low Current PIN: LED
VDD = 4.5V
VOUT =1.5V
5 - - mA
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Power Supply Characteristics
Symbol
VPOR
VKON
Description
Voltage of POR
Input Threshold
Voltage of PTC Pin
for key detecting
IDD Current consumption
VDD Supply voltage
TPOoff Power off timer
Test Conditions
-
RON=10ohm
No loading, VDD = 4.5V
(Internal zener no working)
IDD=0.3~10mA (according to
the zener inside) Control
function normal
FCLK= 50Hz
Min
2
0.8
-
4
0.95
Typ Max Unit
- 3V
1 1.1 V
200 400 µA
- 5.5 V
1 1.05 Hour
Line Clock Synchronization Characteristics
Symbol
Description
FCLK Frequency of CLK
Test Conditions
-
VLEVEL Input voltage of CLK Pin
-
VDD = 4.5V
VTCLK
Compare Threshold Voltage
of CLK Pin
Min Typ Max Unit
- 50/60 - Hz
1.69 1.88 2.07 V
0.8 1 1.2 mV
VB and GATE Pulse Characteristics
Symbol
Description
Tal_VB Width of VB pulse
Test Conditions
TA=25 ºC, V DD = 4.5V
VDD = 4.5V
TA = -20 ~ 85ºC
Tal_GATE
Width of Gate
trigger pulse
TA=25 ºC, VDD = 4.5V
VDD = 4.5V
TA = -20 ~ 85ºC
Min Typ Max Unit
80 100 120 µs
60 - 150 µs
160 200 240 µs
120 - 300 µs
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Ver 1.0
EMC Electrical Characteristics
Symbol Description
Test Conditions
Min Typ Max Unit
EN/IEC61000-4-4 is Electrical fast
transient/burst immunity test,
IEC61000-4-4
requirement > 1000V pulse amplitude (Tr=5ns,
EFT
2000
-
Transient/Bursts Tw=50ns, Z=50 ohms, burst duration 15
- VPP
ms,burst period 300 ms, burst frequency 2,5
kHz)
Temperature Control Characteristics
Symbol Description
Test Conditions
Min
VT
VTH
VOS_COMP
T-heat
Normal
heat-up
Threshold
Voltage
Fast heat-up
Threshold
Voltage
Input Offset
Voltage of
Comparator
Heating cycle
time
VDD = 4.5V VREF=0.7V Test
GATE output about 50%
heating power
BCT5330xL/B
(x: 0~7)
BCT5330xH/A
(x: 0~7)
VDD=4.5V
VREF=0.7V
Test GATE
output about
50% heating
power
Pin: PTC
FCLK= 50Hz
-
VT +0.4%
(VB-VREF)
VT +1.9%
(VB-VREF)
-3mV
-
Type
Uni
Max
t
0.5(VB-
VREF)
-V
VT +0.6%
(VB-VREF)
VT +2.1%
(VB-VREF)
VT +0.8%
(VB-VREF)
VT +2.3%
(VB- VREF)
V
-
+3mV
mV
640 - ms
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Ver 1.0
Package Information
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Total : 8 PagesDownload Full Datasheet PDF file |