BCT536xA/B Ceramic Heat Controller (7-Segment LED) Features High watt density Alumina Heaters Pulse trigger with high current for SCR Quickly Heat-Up and Quickly Lost-Heat Recover External adjustable to fit wide range heating plates External adjustable to fit TCR of sensors Internal zener Full temperature compensation and insensitive to environment temperature 11 heat temperature settings at most Auto power off (BCT5361/3/5/7) SOIC-24 package 7 Segments Digital Tube for showing temperature setting 6 LEDs Running Lights Dual voltage (110V/220V) operations. Dual Temperature (Fahrenheit/Centigrade) Display Description The BCT536xA/B is special designed for ceramic heating control with 11 temperature settings. It can drive SCR directly and detect heater temperature without extra temperature sensor. The working status is indicated by 7-segment LED displays, with 6 running LED indicate. It has 3 keys for function setting and will be auto-power off after power on 1 hour for 60Hz AC or 1.2 hour for 50Hz AC. Application Ceramic heating controller Order Information P/N Last setting load Timer Temperature Range Package BCT5361A Y Y 100-200 210-400 SOP-24/SSOP-24 BCT5361B N Y 100-200 210-400 SOP-24/SSOP-24 BCT5362A Y N 100-200 210-400 SOP-24/SSOP-24 BCT5362B N N 100-200 210-400 SOP-24/SSOP-24 BCT5363A Y Y 130-230 265-450 SOP-24/SSOP-24 BCT5363B N Y 130-230 265-450 SOP-24/SSOP-24 BCT5364A Y N 130-230 265-450 SOP-24/SSOP-24 BCT5364B N N 130-230 265-450 SOP-24/SSOP-24 BCT5365A Y Y 120-220 250-430 SOP-24/SSOP-24 BCT5365B N Y 120-220 250-430 SOP-24/SSOP-24 BCT5366A Y N 120-220 250-430 SOP-24/SSOP-24 BCT5366B N N 120-220 250-430 SOP-24/SSOP-24 BCT5367A Y Y 150-230 300-450 SOP-24/SSOP-24 BCT5367B N Y 150-230 300-450 SOP-24/SSOP-24 BCT5368A Y N 150-230 300-450 SOP-24/SSOP-24 BCT5368B N N 150-230 300-450 SOP-24/SSOP-24 www.broadchip.com 1
1. Pin Configuration CLK 1 24 REF2 L3 2 23 REF1 GND L1 3 22 4 21 PTC VB L2 5 20 VDD L4 6 19 GATE BUZZ 7 18 COM4 SEG1 8 17 COM3 SEG2 9 16 COM2 SEG3 10 15 COM1 SEG4 11 14 SEG7 SEG5 12 13 SEG6 Pin Description Name Pin No. Type Description CLK 1 I Clock input from power line and Detect operation voltage. L3 2 I Input to adjust Recovery Rate. L1 4 I Power on/off key inputs L2 5 I Up and down key inputs. L4 6 I High: LCD shows F, Low : LCD shows C. BUZZ 7 O BUZZ and ANION output. SEG1,SEG2, SEG3, SEG4,SEG5,SEG6, SEG7 COM1,COM2, COM3,COM4 8,9,10,11,12, 13,14 O LCD digits control output. 15,16,17,18 O LCD digits control output. GATE 19 O SCR trigger output, active high VB 21 O PTC sampling power source PTC 22 I Temperature sensor input REF1 23 I Reference 1 for internal comparator REF2 24 O Reference 2 for internal comparator GND 3 VDD 20 Power Ground and Power www.broadchip.com 2
2. Block Diagram Function Description BCT5361A/B is special designed for ceramic heating control with 11 temperature levels 210 F, 230 F, 250 F, 265 F, 285 F, 300 F, 320 F, 340 F, 355 F, 375 F, 400 F. It can drive SCR directly and detect heater temperature by heater-self without extra temperature sensor. It has 3/4 keys for function setting, 7 Segments Digital Tube displays and indicate the working status. Build-in timer will be auto-power off after power on 1 hour for 60Hz,1.2 hour for 50Hz or both 1 hour for 50/60Hz by trimming option. The temperature setting of BCT5362/3/4/5/6/7/8 is as below: Pin L4 is pulled to high level. Unit: F Level1 Level2 Level3 Level4 Level5 Level6 Level7 Level8 Level9 Level10 Level11 BCT5361A/B/2A/B 210 230 250 265 285 300 320 340 355 375 400 BCT5363A/B/4A/B 265 285 300 320 340 355 375 400 410 430 450 BCT5365A/B/6A/B 250 265 285 300 320 340 355 375 400 410 430 Running_lights R1 R2 R3 R4 R5 R6 BCT5367A/B/8A/B 300 320 340 355 375 400 410 430 450 \ \ Running_lights R1 R2 R3 R4 R5 R6 \ \ www.broadchip.com 3
Pin L4 is pulled to low level. Unit: C Level1 Level2 Level3 Level4 Level5 Level6 Level7 Level8 Level9 Level10 Level11 BCT5361A/B/2A/B 100 110 120 130 140 150 160 170 180 190 200 BCT5363A/B/4A/B 130 140 150 160 170 180 190 200 210 220 230 BCT5365A/B/6A/B 120 130 140 150 160 170 180 190 200 210 220 Running_lights R1 R2 R3 R4 R5 R6 BCT5367A/B/8A/B 150 160 170 180 190 200 210 220 230 \ \ Running_lights R1 R2 R3 R4 R5 R6 \ \ 5.1 Product Introduction 3/4 Input Button On/Off: This button will toggle Heating-on or Heating-off. 1). For BCT5361A/2A/3A/4A/5A/6A/7A/8A After plug in power cord, then push on/off button to heating-on, the level of temperature setting selected is as below: P/N Pin L4:high Pin L4:low BCT5361A/2A 300 F 150 C BCT5363A/4A 355 F 180 C BCT5365A/6A 340 F 170 C BCT5367A/8A 300 F 150 C After push on/off button to heating-off, then heating-on, the level of temperature setting selected is same as former setting before heating-off. 2). For BCT5361B/2B/3B/4B/5B/6B/7B/8B Once heating-on, the level of temperature setting selected is as below: P/N Pin L4:high Pin L4:low BCT5361B/2B 300 F 150 C BCT5363B/4B 355 F 180 C BCT5365B/6B 340 F 170 C BCT5367B/8B 300 F 150 C Push On/Off button twice, the IC will work at the Lock Key Mode, and then push On/Off button twice, the IC will be out of the Lock Key Mode. Off: Once this function enable, the IC will be turned off by pushing On/Off button, and turned off by pushing Off button. Up: Temperature up adjustment. Push Up button once, the temperature setting will increase one level until the highest level is reached. Long push UP button, the ANION will be turned on when it is off. Down: Temperature down adjustment. Push Down button once, the temperature setting will reduce one level until the lowest level is reached. Long push Down button, the ANION will be turned off when it is on. 7 Segments Digital Tube and Running Lights Indicator The display on 7 Segments Digital Tube indicates the temperature settings. Once IC enters Heating-on state, internal timer will start to count. When the timer is 25 minutes at 60Hz ( or 30minutes at 50Hz,when auto detect AC frequency, the timer always be 25 minutes ), temperature settings on 7 Segments Digital Tube will flash, its frequency is 1.5Hz. www.broadchip.com 4
During heating-up, the Running Lights runs up, its frequency is 1.5Hz. When the temperature reaches 27 F -45 F (15 C -25 C) less than the level of temperature setting, the Running Lights is always off. During heating-down, the Running Lights runs down, its frequency is 1.5Hz. When the temperature reaches 27 F -45 F (15 C -25 C) less than the level of temperature setting, the Running Lights is always off. When adjust from low temperature setting level to high, or from high temperature setting level to low, the Running Lights will run once. Its frequency is 1.5Hz. Reset After power on, the chip will be reset by internal POR circuit, 7 Segments Digital Tube will have two options. One is disabled, the other is displaying OFF. GATE pin output low level. Running Lights The Running Lights is composed of 6 LEDs, see the following truth table. BUZZ Once the IC turns on, the BUZZ will output two short buzzers. Once the IC turns off, the BUZZ will output a long buzzer. Once the IC turns on, the ANION will work when this function enable. The ANION can be turned off by long pushing DOWN button, and turned on by long pushing UP button. Timer Once IC enters Heating-on state, internal timer will start to count. It ll be timeout and auto heating-off about 30 minutes for 60Hz, 36 minutes for 50Hz or 30 minutes for both 50/60Hz by trimming option. There is no timer in BCT5362A/2B/4A/4B/6A/6B/8A/8B. 7 Segments Digital Tube Panel Specification 1). 7 Segments Digital Tube signaling www.broadchip.com 5
2). True table PIN SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM1 COM2 COM3 COM4 COM4 T R6 R5 R4 R3 R2 R1 T / / / COM3 3A 3B 3C 3D 3E 3F 3G / / T COM2 2A 2B 2C 2D 2E 2F 2G / / -I / COM1 1A 1B 1C 1D 1E 1F 1G / K / / K - I Maximum Ratio Storage Temperature.. -55 o C to +150 o C Ambient Temperature with Power Applied -20 o C to +85 o C Supply Voltage to Ground Potential (Inputs & V DD only). 0.5 to +6.5V Supply Voltage to Ground Potential (Outputs only).. - 0.5 to +6.5V DC Input Voltage.. - 0.5V to +6.5V Input / Output Current 50mA Input / Output Current (Pin VDD, VB only)..... 200mA Power Dissipation 600mW Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is only a stress rating. 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. www.broadchip.com 6
Recommend Operating Conditions Symbol Pin Description Min Type Max Unit V DD V DD Supply voltage 4.0 Vz V Ta Operation Temperature -20 +85 C Electrical Characteristics (V DD = 4.0 ~Vz, T A = -20 ~ 85ºC, unless otherwise noted) 9.1 DC input Electrical Characteristics PIN: PTC CLK V IN = V DD 5 I IH Input high current PIN: L1, L2,L3,L4 V IN = V DD, Vclk=5V (L1, L2, L4 is of input) 5 A I IL Input low current PIN: PTC CLK V IN = GND -5 PIN: L3,L4 PIN: L1, L2 V IN = GND, Vclk=GND (L4 is of input) V DD =4.5V V IN = 2.0V (L1, L2 is of input) -50 A -0.06-0.20 ma V IH Input High Voltage PIN: L1, L2 0.8 V DD V V IL Input Low Voltage PIN: L1, L2 0.4 V DD Input Threshold VT1_Level V DD =4.5V 3.0 3.5 4.0 V V IT Voltage VT2_Level L3 1.2 1.7 2.2 V 9.2 DC Output Electrical Characteristics I OH I OL Output High Current Output Low Current PIN: GATE PIN: BUZZ PIN: GATE PIN: BUZZ V DD = 4.5V Vout = 2.5V V DD =4.5V Vout =4.0V V DD = 4.5V Vout =0.5V V DD =4.5V Vout =0.5V -15-3.0 4.0 4.0 ma ma VLCD Output High Voltage PIN:COM1,COM2, COM3, COM4, SEG1, SEG2, SEG3, SEG4, SEG,5,SEG6, SEG7 Level3 Level2 Level1 V DD =4.5V 0.9VL5 0.6VL5 0.3VL5 VL5 0.66VL5 0.33VL5 1.1VL5 0.73VL5 3.7VL5 R ON_VB Resistor of switch on PIN: VDD to VB VDD=4.5V Iout = 100mA 15 ohms R ON_TS Resistor of Rma_TSet PIN: VDD to REF2 VDD=4.5V Iout = 50uA 37.2 46.5 55.8 K ohms R ON_SP Resistor of Rma_Speed PIN: REF1 to REF2 VDD=4.5V Iout = 1mA 1 1.5 3.0 K ohms www.broadchip.com 7
9.3 Power Supply Characteristics V POR Voltage of POR - 1.5 2.5 V I DD Current consumption No loading, V DD =4.5V 400 A V DD Supply voltage Control function normal 4.0 V Z V V Z Voltage of Zener IDD=500uA~20mA 4.5 5.0 5.5 V TPO off Power off timer F CLK=60Hz 55 60 65 Minute 9.4 Line Clock Synchronization Characteristics Level2 -- 1.7 1.88 2.1 V T_CLK Input Threshold Voltage of CLK Pin VTL_Level1 V DD =4.5V -200-250 -300 VTH_Level1 VT_Level2 is high -100-150 -200 mv VTL_Level1 V DD =4.5V -125-175 -225 VTH_Level1 VT_Level2 is low -40-90 -140 F CLK Frequency of CLK - 50/60 Hz 9.5 GATE Pulse Characteristics Tal_Gate Tal_VB Width of Gate trigger pulse Width of VB pulse TA=25 ºC, V DD = 4.5V 240 300 360 s V DD = 4.0 ~ Vz T A = -20 ~ 85ºC 120 300 s TA=25 ºC, V DD = 5.0V 80 100 120 s V DD = 4.5 ~ 5.5V T A = -20 ~ 85ºC 60 150 s www.broadchip.com 8
9.6 Temperature Control Characteristics VT 100 0.443 0.447 0.451 Level (100 C) (VB- (VB- (VB- VT 110 0.450 0.454 0.458 Level (110 C) (VB- (VB- (VB- VT 120 0.457 0.461 0.465 Level (120 C) (VB- (VB- (VB- VT 130 0.463 0.467 0.471 Level (130 C) (VB- (VB- (VB- VT 140 0.471 0.475 0.479 Level (140 C) (VB- (VB- (VB- VT 0.477 0.481 0.485 150 Level (150 C) VDD=4.5V (VB- (VB- (VB- VREF2=0.7V VT 0.484 0.488 0.492 160 VREF1=0~100%(VB-VREF Level (160 C) (VB- (VB- (VB- 2) VT 0.490 0.494 0.498 170 Test GATE output about Level (170 C) (VB-V 50% heating power REF2 ) (VB- (VB- VT 0.496 0.500 0.504 180 Level (180 C) (VB- (VB- (VB- V VT 190 0.502 0.506 0.510 Level (190 C) (VB- (VB- (VB- VT 200 0.508 0.512 0.516 Level (200 C) (VB- (VB- (VB- VT 210 0.514 0.518 0.522 Level (210 C) (VB- (VB- (VB- VT 220 0.522 0.526 0.530 Level (220 C) (VB- (VB- (VB- VT 230 0.525 0.529 0.533 Level (230 C) (VB- (VB- (VB- VT 100H VT 110H VT 120H VT 130H VT 140H VT 150H VT 160H VT 170H Voltage Level (100 C) Voltage Level (110 C) Voltage Level (120 C) Voltage Level (130 C) Voltage Level (140 C Voltage Level (150 C) Voltage Level (160 C ) Voltage Level (170 C) VDD=4.5V VREF2=0.7V VREF1=50%(VB-V Test GATE output about 50% heating power VT 100 +1.2%(VB-V VT 110 +2.0%(VB-V VT 120 +1.9%(VB-V VT 130 +1.8%(VB-V VT 140 +1.7%(VB-V VT 150 +1.6%(VB-V VT 160 +1.5%(VB-V VT 170 +1.4%(VB-V VT 100 +2.4%(VB- VT 110 +2.2%(VB- VT 120 +2.1%(VB- VT 130 +2.0%(VB- VT 140 +1.9%(VB- VT 150 +1. 8(VB-V REF2 ) VT 160 +1.7%(VB- VT 170 +1.6%(VB- VT 100 +2.6%(VB- VT 110 +2.4%(VB- VT 120 +2.3%(VB- VT 130 +2.2%(VB- VT 140 +2.1%(VB- VT 150 +2.0%(VB- VT 160 +1.9%(VB- VT 170 +1.8%(VB- V www.broadchip.com 9
VT 180H VT 190H VT 200H VT 210H VT 220H VT 230H VT TRAN V OS_COMP Voltage Level (180 C) Voltage Level (190 C) Voltage Level (200 C) Voltage Level (210 C) Voltage Level (220 C) Voltage Level (230 C) Voltage Level transfer Input Offset Voltage of Comparator Test GATE output about 10~90% VT 180 +1.3%(VB-V VT 190 +1.2%(VB-V VT 200 +1.1%(VB-V VT 210 +1.0%(VB-V VT 220 +1.0%(VB-V VT 230 +0.9%(VB-V VT 180 +1.5%(VB- VT 190 +1.4%(VB- VT 200 +1.3%(VB- VT 210 +1.2%(VB- VT 220 +1.2%(VB- VT 230 +1.1%(VB- VT 180 +1.7%(VB- VT 190 +1.6%(VB- VT 200 +1.5%(VB- VT 210 +1.4%(VB- VT 220 +1.4%(VB- VT 230 +1.3%(VB- VT-4mV VT+4mV mv PIN: PTC -4mV +4mV mv EMC Electrical Characteristics (V DD = 4.0 ~Vz, T A = -20 ~ 85ºC, unless otherwise noted) EFT IEC61000-4-4 Transient/Bur sts EN/IEC61000-4-4 is Electrical fast transient / burst immunity test, requirement > 1000V pulse amplitude (tr=5ns, tw=50ns, Z=50 ohms, burst duration 15 ms, burst period 300 ms, burst frequency 2,5 khz) 1000 Vpp www.broadchip.com 10
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Packaging Mechanical: 24-Pin SOP www.broadchip.com 12
24-Pin TSSOP www.broadchip.com 13