SC2128C-C30D [SILAN]
REMOTE FAN CONTROL IC; 遥控风扇控制IC
| 型号： | SC2128C-C30D |
| 厂家： | 
SILAN MICROELECTRONICS JOINT-STOCK |
| 描述： | REMOTE FAN CONTROL IC |
| 文件： | 总13页 (文件大小：524K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Silan
Semiconductorsꢀ
SC2128C
ꢀ
REMOTE FAN CONTROL IC
DESCRIPTION
The SC2128C is a high performance electronic fan controller LSI,
Speed control, off-timer, rhythm wind, sleep mode, head swing
and/or light control are all built into a single chip. Indicator LED
output, buzzer output, key control input, as well as remote control
decoding circuitry are all provided to build a full function electronic
fan with remote control capability having the highest performance
with the least external components. Pin assignment and application
circuit are optimized for easy PCB layout and cost saving for
electronic fan application.
FEATURES
* High performance CMOS Technology
* Low power consumption
DIP-24-300-2.54
* Optional independent light control
* 90 seconds cycle/6 seconds per step(off step 3 seconds) rhythm
wind pattern
* Built-in remote control decoding circuitry with mask option
custom code
APPLICATIONS
* Available in 16,18,20,22,24 pin package for none, one set or two
sets of swing head and/or light control
* Two sets of swing head and/or light control
* Three operation modes: ordinary, rhythm and rhythm sleep.
* Optimized for fan application
* Suitable for heater fan, cooling fan,
and other home appliances with remote
control, timer and/or output level control
PIN CONFIGURATION
NC
1
2
3
4
5
6
7
8
9
24 SO2
23 LO
REMOTE
VSS
22 MI
OSCI
21 ST
OSCO
20 LED1
19 LED2
18 LED3
17 COM
16 TIMER
15 SO1
14 LIT
VDD
SC2128C
OFF/BUZZ
SPEED
MODE
SW1 10
LIGHT 11
NC 12
13 LORD
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
ꢀ
2001.09.26ꢀ
1
Silan
Semiconductorsꢀ
SC2128C
ꢀ
ORDERING INFORMATION
SC2128C- X X X X
S = Swing Head Output(s) Controlled by a Single Key (Mask
Option)
D = Two Swing Head Outputs Controlled by Double Keys (D can be
omitted)
0 = No Swing head Output
1 = 1 Swing head Output
2 = 2 Swing head Outputs
3 = 1 Swing head & Light Control Outputs
4 = 2 Swing head & Light Control Outputs
2 = 1/2/4 Hour, Non-Accumulated Timer
3 = 1/2/4 Hour, Accumulated Timer
4 = 0.5/1/2/4 Hour, Non-Accumulated
Timer
5 = 0.5/1/2/4 Hour, Accumulated Timer
8 = 1/2/4/8 Hour, Non-Accumulated Timer
9 = 1/2/4/8 Hour, Accumulated Timer
D = Non-Memory Start-up & Non-Middle Wind Start-up (Mask
Option)
C = Non-Memory Start-up & Middle Wind Start-up
L = Memory Start-up & Non-Middle Wind Start-up (Mask Option)
M = Memory Start-up & Middle Wind Start-up
Note: SC2128C Standard ICs: SC2128C-C41, SC2128C-C51, Other options are available upon request and
require a minimum order Quantity. Please contact Silan or your local agent for details.
BLOCK DIAGRAM
V
DD
VSS
OSCI
LO
MI
OSC
TIMING
OSCO
SPEED
CONTROL
ST
FILTER
DECODER
REMOTE
COM
LED1
LED2
LED3
LED
SPEED
TIMER
MODE
SW1
SCAN
TIMER
KEY
SENSE
SW2
SO1
SO2
LIT
SWING/
LIGHT
OFF/MEMS/
BUZZ
MEMORY
LIGHT
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
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Semiconductorsꢀ
SC2128C
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ABSOLUTE MAXIMUM RATINGS
Characteristic
Supply Voltage
Symbol
VDD
Test Conditions
Value
0 ~ 6.0
Unit
V
--
Input/Output Voltage
Power Dissipation
VI, VO
PD
VDD - VSS
-0.3V ~ VDD+0.3V
500
V
VDD – VSS = 5.0
mW
°C
Operating Temperature
Storage Temperature
Topr
--
--
-20 ~ +70
-40 ~ +125
Tstg
°C
ELECTRICAL CHARACTERISTICS
Parameter
Supply Voltage
Symbol
Test conditions
Min
Typ
Max
Unit
VDD
--
4.0
5.0
6.0
V
VDD=5.0V, Oscillator stops.
All output floating,
All input fixed to VDD.
--
Stand-by Current
Iq
--
134
200
µA
Input High Level Voltage
Input Low Level Voltage
Drive Current (COM)
VIH
VIL
IOH
IOL
IOH
IOL
IOH
IOL
VDD-1.5
--
--
--
1.5
--
V
--
--
15
-12
5
V
VDD=5.0V, Vo=3.5V
VDD=5.0V, Vo=1.5V
VDD=5.0V, Vo=3.5V
VDD=5.0V, Vo=1.5V
VDD=5.0V, Vo=2.5V
VDD=5.0V, Vo=2.5V
21.5
-16.5
6.5
mA
mA
mA
mA
mA
mA
Sink Current (COM)
--
Drive Current(LED1, LED2, LED3)
Sink Current(LED1, LED2, LED3)
Drive Current (OFF/BUZZ)
Sink Current (OFF/BUZZ)
Sink Current
--
-4
-5.7
3.0
--
1.5
-2
--
-3.7
--
IOL
VDD=5.0V, Vo=2.5V
-6.5
-16
--
mA
(LO,MI,ST,SO1, SO2,LIT)
Oscillation frequency
fOSC
Tkey
Tbit
--
--
--
--
32768
--
--
--
Hz
ms
ms
Key Press Duration
80
2.0
Remote Input Bit Duration
2.5
3.0
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
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Semiconductorsꢀ
SC2128C
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PIN DESCRIPTION
Pin No.
1
Symbol
I/O
--
I
Function
NC
REMOTE
VSS
No connection
2
Remote control sensor input
Negative power supply
Oscillator input Pin
3
--
I
4
OSCI
OSCO
VDD
5
O
--
I/O
I
Oscillator output Pin
6
Positive power supply
7
OFF/BUZZ
SPEED
MODE
SW1
OFF control key input, shared with buzzer output
SPEED key control input
MODE key control input
Swing head 1 control key input
Light control key input
8
9
I
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
I
LIGHT
NC
I
--
O
O
O
I
No connection
LORD
LIT
Ordinary wind indicator LED output
Light output
SO1
Swing head 1 output
TIMER
COM
LED3
LED2
LED1
ST
TIMER key control input
Indicator LED common output
Indicator LED output Pin
Indicator LED output Pin
Indicator LED output Pin
(Strong) Speed output Pin
(Middle) Speed output Pin
(Low) Speed output Pin
Swing head 2 output
O
O
O
O
O
O
O
O
MI
LO
SO2
FUNCTIONAL DESCRIPTION
1. CONTROL KEYS
Up to six(6) function keys – SPEED, MODE, TIMER, SW1, LIGHT and OFF/MEMS – may be used on the
control panel of fan to access SC2128C to its full versatility. OFF/BUZZ key input pin serves further as buzzer
output BUZZ pin. All key inputs are internally pulled-high in SC2128C.
SPEED key controls the fan speed. TIMER key adjusts off-timer. MODE key sets fan into various modes of
operation. SW1 key control the head swing of fan. LIGHT key toggles the LIT output ON and OFF. OFF/BUZZ key
resets the fan to idle state when fan is ON. LIT output is not affected by OFF key.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
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Semiconductorsꢀ
SC2128C
ꢀ
2. SPEED KEY
SPEED key is used to (1) turn on the fan (2) change speed of the fan. SLEEP key my turn on the fan from remote
control handset. All the other key scan NOT turn on the fan. All the other keys, except LIGHT key, can NOT
operate until fan is turned on. The diagram shows the state transition of SC2128C for successive pressing of
SPEED key.
MID
LO=Z
Middle wind start-up optioned
MI=L
ST=Z
LOW
LO=L
MI=Z
OFF
LO=Z
MI=Z
ST=Z
MI start
LO=Z
MI=L
SPEED KEY
2-3 sec, delay
Z=high impedence
L=low voltage
ST=Z
ST=Z
STR
LO=Z
MI=Z
ST=L
3. TIMER KEY
TIMER key is used to set time schedule after which SC2128C will automatically restore off state(off-timer).
When the fan is on, pressing TIMER key sets up the off-timer. Each pressing of TIMER key increases the
timer by one step. Each time increment step is determined by various timer options. Either 0.5 or 1 hour
per step may be selected, and either 3 levels or 4 levels timer may be selected. Please see TIMER section
for details.
4. MODE KEY
MODE key is used to bring SC2128C around ORD
(ordinary wind) mode, RTM (rhythm wind ) mode and
RSL(rhythm sleep wind ) mode. In ORD mode, the wind
RTM
speed is set by SPEED key and does not change as
SPEED KEY
time passes. In RTM mode the wind speed cycles
OFF
ORD
through three rhythm wind, patterns as set by the
SPEED key. In RSL mode, however, the fan
automatically steps down one level (strong to middle,
middle to low) every 30 minutes and keeps in low wind
until off-timer times out. Four modes of operation are
described in details later.
RSL
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Semiconductorsꢀ
SC2128C
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5. SW1 KEY
SW1 controls the output status of SO1 and SO2 outputs
which in turn control the head swing of fan. Each
pressing of SW1 key toggles SO1 and SO2 outputs as
shown in the diagram right.
SO1=L
SO2=Z
Fan already ON
SO1=Z
SO2=L
SO1=Z
SO2=Z
Z=high impedence
L=low voltage
SO1=L
SO2=L
6. LIGHT KEY
LIGHT key toggles LIT output on(L) and off(Z). LIT output can only be controlled with LIGHT key (from both panel
and remote control) and SLEEP key (if available) on remote control handset. OFF key does NOT affect LIT
output. LIT output is NOT affected by OFF key as well as off-timer times out.
7. OFF/BUZZ KEY
OFF/BUZZ key functions differently depending on whether the fan is ON or OFF. It functions as OFF key when
the fan is ON, and is used to bring SC2128C from any on state into off state. LIT output is NOT affected by OFF
key.
8. INDICATOR LEDS
Up to twelve(13) indicator LEDs may be constructed on the control panel of fan built with SC2128C. Six(6) LED
sare constructed as 3x2 LED matrix formed by COM and LED1, LED2, LED3. The other six(6) LEDs are built in
series with TRIAC outputs and the thirteenth LED is used as Ordinary Wind mode indicator. The diagrams show
how the LED matrix is constructed.
low
VDD
LO
MI
middle
strong
Swing 1
Swing 2
light
COM
ST
Tb2
Sleep
Tb3
Tb0 Tb1
Rhythm
LED3
LED2
LED1
SO1
SO2
LIT
ORD
V
SS
LORD
-5V
SC2128C
SC2128C
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SC2128C
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* Four LEDs (Tb0, Tb1, Tb2, Tb3) are used to indicate the off-timer period. Depending on the base timer step
option, timer step may be 0.5 hour or 1 hour as indicated in the diagram.
Tb0=0.5 hour
b1=1 hour
b2=2 hour
b3=4 hour
If SC2128C is selected with 4 hour timer
option
Tb0=1 hour
b1=2 hour
b2=4 hour
b3=8 hour
If SC2128C is selected with 8 hour timer
option
The time schedule is the sum of all ON LEDs. For example, if SC2128C is programmed with 1/2/4/8 hour
accumulated timer option, and is Tb0 is ON, Tb1 is OFF, Tb2 is OFF, Tb3 is ON, then the schedule period is 9
hours (1 hr + 9 hr).
* Rhythm LED , Sleep LED and Ordinary LED indicate SC2128C operation modes.
Operation mode
ORD (ordinary wind)
RTM (rhythm wind)
Rhythm LED
Sleep LED
OFF
Ordinary LED
OFF
ON
ON
OFF
OFF
OFF
RSL (rhythm sleep wind)
OFF
ON
* Three LEDs – Low, Middle and Strong – are used to indicate the respective output status of LO, MI, ST output.
LED being ON indicates output active (L). LED being OFF indicates output inactive (Z). Only one output among
LO, MI and HI may be active at a specific time.
* Swing1 LED, Swing2 LED and Light LED indicated respective output status of SO1, SO2, and LIT.
9. TIMER
The external timer of SC2128C may be bonding optioned
: 0.5, 1, 2, 4 hours non-accumulated
: 1, 2, 4, 8 hours non-accumulated
: 0.5, 1, 2, 4 hours accumulated
: 1, 2, 4, 8 hours accumulated
: 1, 2, 4 hours non-accumulated
: 1, 2, 4 hours accumulated
into six (6) configurations as shown. Each pressing of
TIMER key will step the internal timer one step up. The
actual sequence depends on the TIMER option selected.
The following diagrams show the timer sequence for each
TIMER option. TIMER automatically counts down as time
passes by. The count down sequence reverses the key
sequence and is also shown in the following diagrams.
ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
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M
1hr
1hr
Silan
Semiconductorsꢀ
SC2128C
ꢀ
TIMER
TIMER
1hr
TIMER
TIMER
TIMER
TIMER
TIMER
TIMER
1hr
None
0.5
1
2+
1
None
None
None
0.5hr
0.5
1
4
None
1
2
T
T
r
1hr
r
h
0.5hr
I
h
I
r
h
M
T
1hr
5
.
2
I
E
E
M
TIMER
1
0
TIMER
R
R
TIMER
TIMER
1hr
E
R
4+
2+
1
4+
4
2
4+
1
4
2
2
4hr
2hr
1hr
(2)
(1)
(6)
TIMER
TIMER
1hr
TIMER
0.5hr
TIMER
0.5hr
TIMER
0.5hr
TIMER
0.5hr
TIMER
TIMER
0.5hr
TIMER
0.5hr
TIMER
0.5hr
2+
1+
1+
2+
0.5
2+
None
1
2
0.5
1
2
4
0.5
1
0.5
1hr
r
T
r
0.5hr
T
h
h
I
M
I
2
5
.
M
E
TIMER
TIMER
0.5hr
0
TIMER
TIMER
0.5hr
TIMER
TIMER
0.5hr
E
R
R
4+
2+
1+
0.5
4+
2+
1
4+
2+
0.5
4+
1+
0.5
4+
4+
4+
0.5
4
2
1
0.5hr
0.5hr
0.5hr
(5)
(3)
TIMER
TIMER
TIMER
TIMER
TIMER
TIMER
TIMER
TIMER
1hr
4+
2+
1
2+
1
4+
1
4+
2
4
8
1
2
1hr
1hr
1hr
T
1hr
1hr
1hr
1hr
r
h
I
M
1
TIMER
TIMER
1hr
E
TIMER
TIMER
1hr
TIMER
1hr
TIMER
1hr
8+
4+
2+
1
R
8+
4+
2
8+
4+
1
8+
2+
1
8+
2
8+
1
8+
4
1hr
1hr
(4)
10. RHYTHM WIND
SC2128C features rhythm wind mode. It can be set
into rhythm wind mode by pressing MODE key.
Furthermore, there are three levels – strong, middle
and low rhythm wind. Pressing SPEED key cycles
SC2128C around the three levels, from low to middle,
middle to strong, then strong to low. Initial rhythm wind
level on entering RHYTHM wind mode is the same as
the ordinary wind level while leaving ORDINARY wind
mode and entering RHYTHM wind mode. The right
diagram depicts the strong, middle and low rhythm
wind patterns.
ST
MI
LO
seconds
t=90
t=0 Strong rhythm wind pattern
ST
MI
LO
seconds
t=90
t=0
t=0
Middle rhythm wind pattern
Low rhythm wind pattern
ST
MI
LO
seconds
t=90
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SC2128C
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11. RHYTHM SLEEP WIND MODE
Strong rhythm wind
Middle rhythm wind
Low rhythm wind
Pressing MODE key in sleep wind mode brings
SC2128C into rhythm sleep wind. In rhythm sleep
wind mode, SC2128C outputs LOW, MIDDLE or
STRONG rhythm wind pattern and automatically
steps down one level every 30 minutes until it
reaches low rhythm wind level. If no off-timer is set,
SC2128C keeps in low rhythm wind output.
Otherwise it restores off state when the off-timer
times out.
hours
t=0
t=0.5hr t=1.0hr
timer timeout
Strong rhythm sleep mode wind pattern
Strong rhythm wind
Middle rhythm wind
Low rhythm wind
hours
t=0
t=0.5hr t=1.0hr
timer timeout
Middle rhythm sleep mode wind pattern
Strong rhythm wind
Middle rhythm wind
Low rhythm wind
hours
t=0
t=0.5hr t=1.0hr
timer timeout
Low rhythm sleep mode wind pattern
12. BUZZER OUTPUT
All valid key pressed except OFF/BUZZ initiates a 150ms
duration 4kHz 50% duty cycle pulse train at OFF/BUZZ pin.
OFF/BUZZ key function as OFF key if pressed when fan is
in any on state. In this case, it does NOT initiate an output
on BUZZ. Note that when OFF/BUZZ outputs the pulse train,
key input is suppressed. That is, pressing OFF/BUZZ key
when the buzzer is buzzing is NOT recognized by SC2128C.
The diagram right shows the buzzer connection.
V
DD
SC2128C
OFF/BUZZ key
OFF/BUZZ
V
SS
-5V
13. REMOTE CONTROL DECODER
SC2128C is designed to be used together with SC2268 infrared ray remote control encoder. Such combination
allows up to 8 remote control keys – SPEED, MODE, TIMER, LIGHT, SLEEP, SW1, SW2, OFF/BUZZ – to be
built on the remote control handset. 4 bits customer code, b3 ~ b6, is encoded by SC2268 and decoded by
SC2128C in order to avoid remote control contention between devices. With SC2268, b3 is determined by
bonding option; b4, b5 and b6 are determined by connecting respective c4, c5, c6 pin to VDD or VSS. With
SC2128A, b3 and b6 can be mask programmed upon customer request and with NRE.
The remote control signal coding scheme is fully
Code bit:
compatible with SC2268. Some description follows.
"0" bit:
Please refer to specification of SC2268 for details.
When SC2128C receives a remote control signal at
"1" bit:
0.625ms
its REMOTE pin, it decodes the received waveform
1.875ms
2.5ms
into consecutive “0” bits and “1” bits. It first
compares the received start word against its
customer code. If and only if the start word matches
Start/Code word:
b0
b1
b2
b3
b4
b5
b6
b7
the customer code, it then compares for two
consecutive and matched code words. It then
actuates the command according to the code words
table shown later.
Code frame
start word 1st code word 2nd code word
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SC2128C
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14. CUSTOMER CODE
The default customer code of SC2128C is internally mask programmed to b0 ~ b7 = 00110011. Code bit b3 ~ b6
may be mask programmed to any value according to customer specification under terms and conditions agreed
by SILAN. Suitable NRE is involved with customizing default customer code. Please refer to the following table.
Mask Option
Default Customer Code
Start word
b0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
b3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
b4
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
b5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
b6
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
b7
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Mask Programmable
Customer Code
15. REMOTE CONTROL KEYS
Up to eight keys may be built on the remote control handset. Except SLEEP key, all keys functions the same as
their panel counterparts. SLEEP key is not available on fan panel, and is only available on remote control
handset. Pressing SLEEP key brings SC2128C to the output states as follows:
SPEED
MODE
TIMER
SWING
LIGHT
Middle wind
RTM wind
4 hours or 8 hours
S O1ON,S O2OFF
LITON
Theremotetransmissioncodewordsaredefinedinthefollowingtable.
SC2268
Corresponding
Keys
Code word
Equivalent Key
b0
b1
b2
b3
b4
b5
b6
b7
SPEED
MODE
TIMER
LIGHT
SLEEP
0
0
0
1
1
0
1
1
0
0
1
0
1
0
1
1
1
0
1
0
1
1
0
1
0
0
0
0
1
1
1
0
1
0
1
0
0
0
0
0
I1
I2
I3
I4
I5
S
S
W2
W1
1 0 1 1 0 0 0 1
1 1 0 0 0 1 0 1
I6
I7
OFF/MEMS
1
1
0
1
0
0
1
0
I8
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SC2128C
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16. VARIOUS OPTIONS
SC2128C accommodates many option possibilities. The options are summarized below:
* Package Option:
Either 16, 18, 20, 22, or 24 pin package.
* Bonding option:
ACC:
T0.5:
3LT:
NM:
Accumulated or non-accumulated timer option.
Timer scale, 0.5/1/2/4 hour timer or 1/2/4/8 timer option.
Timer level option, either 4 levels or 3 levels.
Disable memory mode.
* Metal Option:
b3 ~ b6:
NMS :
Replaces default customer codes
Disablemiddlewind start-upfunction
Dependent/Independentswingheadcontroloption.
2S W:
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SC2128C
ꢀ
APPLICATION CIRCUIT
AC
SC2128C
Swing2
Low
220
220
220
220
¡
¡
¡
¡
NC
SO2
LO
1
2
24
23
22
21
20
19
18
17
16
15
14
13
REMOTE
VSS
Middle
Strong
MI
3
47pf
IR MODULE
OSCI
ST
4
32.768kHz
Rhythm
-5V
OSCO
VDD
LED1
LED2
LED3
COM
TIMER
SO1
LIT
5
47pf
Tb0
Sleep
9.1k
¡
6
Tb2
OFF/BUZZ
SPEED
MODE
SW1
7
Tb1
OFF
8
SPEED
MODE
SW1
Tb3
TIMER
-5V
9
Swing1
220
¡
¡
10
11
12
Light
220
LIGHT
NC
LIGHT
1k
¡
LORD
Two Swing Head Controlled by SW1
200k
¡
IN4004
22¡/2w
2SA1015
AC
-5V
2.5f/250V
VAR
1k¡
6.8V/1w
470f
16V
AC
FUSE
0.1f
10f
16V
Supply Circuit
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
ꢀ
2001.09.26ꢀ
12
Silan
Semiconductorsꢀ
SC2128C
ꢀ
SC2268 IR TRANSMITTER APPLICATION CIRCUIT
+3V
SPEED
MODE
I1
I2
I3
Vcc
OSC1
OSC2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
220pf
455kHz
220pf
10Ω
TIMER
LIGHT
IR LED
I4 Tx OUT
A1015
SLEEP
SW2
I5
I6
I7
I8
C4
C5
C1815
1kΩ
SW1
C6
OFF/MEMS
Vss
SC2268
Note: SC2268 is recommended to be used with SC2128C. For this circuit, the “Start Word” is “00110011”
PACKAGE OUTLINE
DIP-24-300-2.54
2.54
1.50
15 degree
34.50
UNIT: mm
0.46
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
ꢀ
2001.09.26ꢀ
13
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