SE556N Fast Delivery |IC PHOENIX CO.,LIMITED

SE556N ,Dual timerELECTRICAL CHARACTERISTICSoTamb = +25 C, VCC = +5V to +15V (unless otherwise specified)SE556 NE556 ..
SE565N , Phase-Lock Loop
SE567 ,Tone decoder/phase-locked loop
SE567 ,Tone decoder/phase-locked loop
SE567 ,Tone decoder/phase-locked loop
SE567FE ,Tone decoder/phase-locked loop
SI-3242P , 3-Terminal, Dropper Type
SI32911-A-FS , Low power standby operation Tracking dc-dc controller Patented low-power ringing Wideband voice support
SI3407DV , P-Channel 20-V (D-S) MOSFET
SI3407DV , P-Channel 20-V (D-S) MOSFET
SI3410DV , N-Channel 30-V (D-S) MOSFET
SI3410DV , N-Channel 30-V (D-S) MOSFET

SE556N
Dual timer
July 1998 LOW TURN OFF TIME. MAXIMUM OPERATING FREQUENCY
GREATER THAN 500kHz. TIMING FROM MICROSECONDS TO HOURS. OPERATES IN BOTH ASTABLE AND
MONOSTABLE MODES. HIGH OUTPUT CURRENT CAN SOURCE OR
SINK 200mA. ADJUSTABLE DUTY CYCLE. TTL COMPATIBLE. TEMPERATURE STABILITY OF 0.005%
PERoC
ORDER CODES
Part
Number
Temperature
Range
Pakcage
NE556 0oC,70oC ••
SA556 –40oC, 105oC ••
SE556 –55oC, 125oC ••
DESCRIPTION
TheNE556 dual monolithic timing circuitisa highly
stablecontrollercapableofproducingaccuratetime
delaysor oscillation.In the time delay modeof op-
eration,the time isprecisely controlledby oneexter-
nalresistor and capacitor. Fora stable operationas oscillator,the freerunningfrequencyand theduty
cycle are both accurately controlled with two exter-
nal resistors and one capacitor. The circuit maybe
triggered and reseton falling waveforms, and the
output structure can sourceor sinkupto 200mA.
GENERAL PURPOSE DUAL BIPOLAR TIMERS
DIP14
(Plastic Package)
SO14
(Plastic Micropackage)
Trigger
Output
Control Voltage4
Trigger
Threshold
Discharge
Reset
Output
Discharge
GND
Threshold
Control Voltage
ResetV
PIN CONNECTIONS (top view)
NE556
SA556- SE556
1/9
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vcc Supply Voltage 18 V
Toper Operating FreeAir Temperature Range for NE556
for SA556
for SE556
0to70
–40to 105
–55to 125 Junction Temperature 150 °C
Tstg Storage Temperature Range –65to 150 °C
THRESHOLD
COMP
5kΩ
5kΩ
5kΩ
TRIGGER
FLIP-FLOP
DISCHARGE
OUT
INHIBIT/
RESET
RESET
COMP
CONTROLVOLTAGE
VCC
1/2 NE556
BLOCK DIAGRAM
OUTPUT
CONTROLVOLTAGE
THRESHOLD
COMPARATOR
VCC
4.7kΩ830Ω Q6 Q7 Q8 Q9
4.7kΩ
1kΩ
5kΩ Q3
Q10
Q11Q12
Q13
THRESHOLD
TRIGGER
RESET
DISCHARGE
GND
Q14
Q15
10kΩ
100kΩ
100kΩ
R10
5kΩ
Q17
Q16 Q18
5kΩ D2
R16100Ω R154.7kΩ
R14
220Ω
Q24
Q23
R174.7kΩ
Q22
Ρ13
Q19
Q20
Q21
R126.8kΩ
TRIGGER COMPARATOR FLIPFLOP
R115kΩ
3.9kΩ
SCHEMATIC DIAGRAM
NE556/SA556/SE556
2/9
Notes: 1. Supply current when outputis highis typically 1mA less. Testedat VCC= +5V andVCC= +15V. Thiswill determinethe maximum valueofRA +RBfor +15V operationthe max totalisR= 20MΩ andfor5V operation
the max totalR= 3.5MΩ. Specified withtrigger input high.
ELECTRICAL CHARACTERISTICS
Tamb= +25oC, VCC= +5Vto +15V (unless otherwise specified)
Symbol Parameter SE556 NE556- SA556 Unit
Min. Typ. Max. Min. Typ. Max.
ICC Supply Current (RL∞)(- note1)-(2 timers)
Low State VCC= +5V
VCC= +15V
High State VCC =5V
Timing Error (monostable)
(RA=2kto 100kΩ,C= 0.1μF)
Initial Accuracy- (note2)
Drift with Temperature
Drift with Supply Voltage
ppm/°C
%/V
Timing Error (astable)
(RA,RB =1kΩto 100kΩ,C= 0.1μF,
VCC= +15V)
Initial Accuracy- (note2)
Drift with Temperature
Drift with Supply Voltage
ppm/°C
%/V
VCL Control Voltage level
VCC= +15V
VCC= +5V
Vth Threshold Voltage
VCC= +15V
VCC= +5V
Ith Threshold Current- (note3) 0.1 0.25 0.1 0.25 μA
Vtrig Trigger Voltage
VCC= +15V
VCC= +5V
Itrig Trigger Current (Vtrig= 0V) 0.5 0.9 0.5 2.0 μA
Vreset Reset Voltage- (note4) 0.4 0.7 1 0.4 0.7 1 V
Ireset Reset Current
Vreset= +0.4V
Vreset =0V
VOL Low Level Output Voltage
VCC= +15V, IO(sink)= 10mA
IO(sink)= 50mA
IO(sink)= 100mA
IO(sink)= 200mA
VCC= +5V, IO(sink)= 8mA
IO(sink)= 5mA
VOH High Level Output Voltage
VCC= +15V, IO(source)= 200mA
IO(source)= 100mA
VCC= +5V, IO(source)= 100mA
OPERATING CONDITIONS
Symbol Parameter SE556 NE556- SA556 Unit
VCC Supply Voltage 4.5to18 4.5to18 V
Vth,Vtrig,Vcl,Vreset Maximum Input Voltage VCC VCC V
NE556/SA556/SE556
3/9
Notes: 5.No protection against excessivePin7 currentis necessary, providingthe package dissipation ratingwillnotbe exceeded. Time mesaured froma positive going input pulse from0to 0.8x VCCintothe thresholdtothe drop from hightolowofthe
output triggeristiedto treshold.
ELECTRICAL CHARACTERISTICS (continued)
Symbol Parameter SE556 NE556- SA556 UnitMin. Typ. Max. Min. Typ. Max.
Idis(off) Discharge Pin Leakage Current
(output high) (Vdis= 10V) 100 20 100 nA
Vdis(sat) Dischargepin Saturation Voltage
(output low)- (note5)
VCC= +15V,Idis= 15mA
VCC= +5V,Idis= 4.5mA
Output Rise Time
Output Fall Time
toff Turnoff Time- (note6) (Vreset =VCC) 0.5 0.5 μs
Figure1: Minimum Pulse Width Required for
Trigering
Figure2: Supply Current versus Supply Voltage
Figure3: Delay Time versus Temperature Figure4: Low Output Voltage versus Output
SinkCurrent
NE556/SA556/SE556
4/9
Figure5: Low Output Voltage versus Output
SinkCurrent
Figure6: Low Output Voltage versus Output
Sink Current
Figure7: High Output VoltageDrop versus
Output
Figure8: Delay Time versus Supply Voltage
Figure9: PropagationDelay versusVoltage
Levelof Trigger Value
NE556/SA556/SE556
5/9
t1= 0.693 RA.C= [(RARB)⁄ (RA+ RB)] CLn− 2RA
2RB−RA=1
t1+t2 RB<1 RAti
Output
1/2
NE556
SE556
(8)
(10)
(9) (11)
(12)
VCC
51kΩ
(13)
22kΩ
0.01nF
50% DUTY CYCLE OSCILLATOR
Output
1/2
NE556
SE556
(8)
(10)
(9) (11)
(12)CC
(13)Trigger
MODULATION
INPUT
PULSE WIDTH MODULATOR
TYPICAL APPLICATION
NE556/SA556/SE556
6/9

Partno	Mfg	Dc	Qty	Available	Descript
SE556N	S	N/a	6	avai	Dual timer