LM556J ,18 V, dual timerGeneral Description
The LM556 Dual timing circuit is a highly stable Controller
capable of prod ..
LM556J ,18 V, dual timerApplications
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I Pulse generation
I Sequential timing
I Time delay gen ..
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LM556J
18 V, dual timer
LM556/LM5560
National .
T Semiconductor
LM556/LM556C Dual Timer
General Description
The LM556 Dual timing circuit is a highly stable controller
capable of producing accurate time delays or oscillation.
The 556 is a dual 555. Timing is provided by an external
resistor and capacitor for each timing function. The two tim-
ers operate independently of each other sharing only Vcc
and ground. The circuits may be triggered and reset on fall-
ing waveforms. The output structures may sink or source
200 mA.
Features
I: Direct replacement for SE556/NE556
u Timing from microseconds through hours
I: Operates in both aslable and monostable modes
I: Replaces two 555 timers
" Adjustable duty cycle
I: Output can source or sink 200 mA
I: Output and supply TTL compatible
n Temperature stability better than 0.005% per "C
II Normally on and normally off output
Applications
Precision timing
Pulse generation
Sequential timing
Pulse width modulation
Pulse position modulation
II Time delay generation
Linear ramp generator
Schematic Diagram
Vcc c . -,
us as m bu" a "?
s n: l
b b" SI F 021
tr " an
i' , "
(132) W3 v l , , "
mnesumn m F. cc -
co 1mm it " am
1ntrrAtlE
(1,11)
t m tttr m
"Tr--- i' lm. 015 ms nu
l m as m: Ittt
mania w--- 01 am ''v' (m ttit;
(u) ce ms m m
1 , , as as
“fl: " Ian 73h
h-o outruv
RESET on
os-als'''-,
Connection Diagram
Dual-in-Line and Small Outline Packages
YNRISH- EONTROL
Vcc DISCHARGE OLD VOLTAGE RESET OUTPUT 'RIGGKR
" " lo I I
t I J l 5 i t
DISCHAREI TIMES“ CONT ROI.
0U) VDLTAGE
Top View
RISE! OUTPUT TRIGGER END
TL/ H I 7852-1
TL/H/7852-2
Order Number LMSSSJ or LM556thl
See NS Package Number J14A
Order Number LMSSSCM
See NS Package Number M14A
Order Number LMSSGCN
See NS Package Number N14A
Absolute Maximum Ratings
If MllltaryfAtrrempatat sptrttlmrd dovlcu nro roqulrod,
ploau contact the National Semiconductor Sale.
MtlttttfDlatrittutortt for nvallnblllty and tttmttlflttatlttrto.
Storage Temperature Range - 65°C to + 15tt'C
Soldering Information
Dual-ln-Une Package
Supply Voltage + 18V
Power Dlsslpatlon (Note 1)
LM556J. LM556thl 1785 mW
LMSSBCN 1620 mW
Operating Temperature Ranges
LM5560 0% to + 70'C
LM556 -55%to +125'C
Soldering (10 seconds) 260°C
Small Outline Package
Vapor phase (60 seconds) 215'0
Infrared (15 seconds) 220%
See AN-450 "Surface Mounting Methods and Their Effect
on Product Reliability" for other methods of solderlng sur-
face mount devices.
Electrlcal Charaeterlatltta (TA = 25-0, vcc = +61/ to +15v, unless otherwlse aptrelfled)
Paramotor Condltlonu LM668 LM5566 Unit:
Min Typ Max Min Typ Max
Supply Voltage 4.5 18 4.6 16 V
Supply Current Vcc " tN, RL = 00 3 5 3 8 mA
(Each TlmarSectlon) Vcc = IW, RL = 00 10 11 10 14 mA
(Low State) (Note 2)
Timing Error, Monostable
lnltlal Accuracy 0.5 0.75 %
Drift with Temperature RA = 1k to 100 kn, C '= 0.1 “F, 30 50 ppm/‘C
(Note 3)
Accuracy over Temperature 1.5 1.5 %
Drift with Supply 0.05 0.1 %/V
Tlming Error, Astable
lnltIal Accuracy 1.5 2.25 %
Drift with Temperature RA, RB = 1k to 100 kn, 90 150 ppm/T
Accuracy overTemperature C == 0.1 pF, (Note 3) 2.5 ao %
Drift with Supply 0.15 0.30 %/V
TriggerVoltage Vcc = 15V 4.8 5 5.2 4.5 5 5.5 V
vcc = 5V 1.45 1.67 1.9 1.25 1.67 2.0 v
Trigger Current 0.1 0.5 0.2 1.0 WA T
Reset Voltage (Note 4) 0.4 0.5 1 0.4 0.5 1 V
Reset Current 0.1 0.4 0.1 0.6 mA
Threshold Current VTH = V-Control (Note 5) 0.03 0.1 0.03 0.1 pA
VTH = 11.2V 250 250 nA
Control Voltage Level and Vcc = 15V 9.6 10 10.4 9 10 11 V
Threshold Voltage Vcc = 5V 2.9 3.33 3.8 2.6 3.33 4 V
Pin l, 13 Leakage Output High 1 100 1 100 nA
Pin 1, 13 Sat (Note 6)
Output Low Vcc = 15V,l = 15 mA 150 240 180 300 mV
Output Low Vcc = 4.5V,l == 4.5 mA 70 100 80 200 mV
O9§SW1IQSSW1
LM556/LM556C
Electrical Characteristics (TA = 25°C, Vcc = +5v to +15v, unlessotherwise specified) (Continued)
Parameter Conditions LM558 LM5560 Unlts
Min Typ Max Min Typ Max
OutputVoltage Drop (Low) VCC = 15V
ISINK = 10 mA 0.1 0.15 0.1 0.25 V
tsz = 50 mA 0.4 0.5 0.4 0.75 V
ISWK = 100 mA 2 2.25 2 2.75 V
ISINK = 200 mA 2.5 2.5 V
Vcc = 5V
ISINK = 8 mA 0.1 0.25 V
ISINK = 5 mA 0.25 0.35 V
Output Voltage Drop (High) 'SOURCE = 200 mA, Vcc = 15V 12.5 12.5 V
ISOURCE = 100 mA, Vcc = 15V 13 13.3 12.75 13.3 V
Vcc = 5V 3 3.3 2.75 3.3 V
Rise Time of Output 100 100 ns
Fall Time of Output 100 100 ns
Matching Characteristics (Note 7)
Initial Timing Accuracy 0.05 0.2 0.1 2.0 %
Timing Drift with Temperature i 10 t 10 ppm/°C
Drift with Supply Voltage 0.1 0.2 0.2 0.5 %/V
Note 1: For operating at elevated temperatures the device must be derated based on a +150'C maximum junction temperature and a thermal resistance of
70°C/W (Ceramic), 77°C/W (Plastic DIP) and 110'C/W (80-14 Narrow).
Note 2: Supply current when output high typically 1 mA less at Vcc = 5V.
Note & Tested at Vcc ' 5V and Vcc = 15V.
Note 4: As reset voltage lowers. timing is inhibited and then the output 9089 low.
Note 5: This will determine the maximum value at RA + R3 tor 15V operation. The maximum total (RA + RB) is 20 Mn.
Note tk No protection against excessive pin l, 13 current is necessary providing the package dissipation rating will not be exceeded.
Note P. Matching characteristics refer to the difference between pertormance characteristics of each timer section.
Note 8: Refer to RETSSSSX drawing for speciftttatiorts of military LM55N version.
Typical Performance Characteristics
Minimum Pulse Width
I Required for Triggering
T " "trt
mum lurmw
I 0.1 " " "
tml‘f VOUAUE tEVEI. 0F TRIGGER PULSE Ot Va)
Low Output Voltage "
Output 3an Current
Vouv (VI
" " IN
' (MA,
Output Propagation Delay vs
mo Voltage Level of Trigger Pulse
' I 925‘0
ltce IIWJIV
MO'AGA‘I’IDI DE LAY (In)
' 0.1 0.1 "
[W81 VOLTARE "tttt 0F TRIGGER PULSE Ot Vcc)
SUMY 00R!!!" Ill)
Vow (V)
"U'IGATIOI 0E lAV (II)
V." (mV) rm L11
Supply Current vs Supply
It Voltage (Each Sectlon)
0125'0
I tit "
SUP'LV VOLTAGE M
Low Output Voltage vs
Output Sink Current
vcc I mv
- Olli’l:
" " "W
Iwor (MA)
Output Propagation Delay vs
Voltage Level ot Trigger Pulse
ll "tMt
et25"C
0 0.1 " 0.3
LOWEST VOLTAGE LEVEL OF I’MGGER PULSE Ot Vac)
Discharge Translator (Pin 1, 13)
Voltage " Sink Current
Vac - "
0115':
Mt 0,1 " "
' (M) Mt 1.13
Vac — V0." (V)
Vout (VI
vw (-V) ml 1,13
High Output Voltage vs
2 Output Source Current
" . - 45':
T. . ""
Ta " " NT
. lmnc: (MA)
Low Output Voltage vs
Output Sink Current
Vgc . “V
' (M!)
Discharge Transistor
(Pln 1, 13)
Voltage vs Sink Current
Ifee . ISV
0.01 0.1 " "
lung (MA) PIN t,13
TL/H/ 7852-3
OBSSW'I/SSSW'I
This datasheet has been :
www.ic-phoenix.com
Datasheets for electronic components.
National Semiconductor was acquired by Texas Instruments.
corp/docs/irwestor_relations/Pr_09_23_201 1_national_semiconductor.html
This file is the datasheet for the following electronic components:
LM556CJ - product/Im556cj?HQS=T|-nu|I-nulI-dscatalog-df-pf-null-wwe
LM556J - product/Im556j?HQS=T|-nu|I-nuIl-dscatalog-df-pf-nulI-wwe
