lm555jan National Semiconductor Corporation, lm555jan Datasheet

no-image

lm555jan

Manufacturer Part Number
lm555jan
Description
Timer
Manufacturer
National Semiconductor Corporation
Datasheet
© 2010 National Semiconductor Corporation
Timer
General Description
The LM555 is a highly stable device for generating accurate
time delays or oscillation. Additional terminals are provided
for triggering or resetting if desired. In the time delay mode of
operation, the time is precisely controlled by one external re-
sistor and capacitor. For astable operation as an oscillator,
the free running frequency and duty cycle are accurately con-
trolled with two external resistors and one capacitor. The
circuit may be triggered and reset on falling waveforms, and
the output circuit can source or sink up to 200mA or drive TTL
circuits.
Features
Ordering Information
Connection Diagrams
NS Part Number
JL555SPA
JL555SGA
Direct replacement for SE555/NE555
Timing from microseconds through hours
Operates in both astable and monostable modes
Dual-In-Line Package
Top View
JAN Part Number
JM38510/10901SPA
JM38510/10901SGA
201537 Version 3 Revision 1
201537
20153703
LM555JAN
NS Package Number
Print Date/Time: 2010/10/01 00:30:58
Applications
Adjustable duty cycle
Output can source or sink 200 mA
Output and supply TTL compatible
Temperature stability better than 0.005% per °C
Normally on and normally off output
Precision timing
Pulse generation
Sequential timing
Time delay generation
Pulse width modulation
Pulse position modulation
Linear ramp generator
H08A
J08A
Metal Can Package
Top View
Package Description
8LD Ceramic Dip
8LD Metal Can
September 27, 2010
OBSOLETE
20153733
www.national.com

Related parts for lm555jan

lm555jan Summary of contents

Page 1

... JM38510/10901SPA JL555SGA JM38510/10901SGA Connection Diagrams Dual-In-Line Package Top View © 2010 National Semiconductor Corporation 201537 Version 3 Revision 1 LM555JAN ■ Adjustable duty cycle ■ Output can source or sink 200 mA ■ Output and supply TTL compatible ■ Temperature stability better than 0.005% per °C ■ ...

Page 2

Schematic Diagram www.national.com 2 201537 Version 3 Revision 1 Print Date/Time: 2010/10/01 00:30:58 20153701 ...

Page 3

Absolute Maximum Ratings Supply Voltage Discharge Current Output Sink Current Output Source Current Power Dissipation (Note 2) Metal Can CERDIP Operating Temperature Range Maximum Junction Temperature (T Jmax) Storage Temperature Range Soldering Information (Soldering 10 Seconds) Thermal Resistance  θ JA ...

Page 4

Electrical Characteristics DC Parameters Symbol Parameter I Power Supply Current CC V Trigger Voltage Trig I Trigger Current Trig V Threshold Voltage Th I Threshold Current Th V Logical "0" Output Voltage OL V Logical "1" Output Voltage OH I ...

Page 5

Symbol Parameter t Propagation Delay Time PHL t Transition Time TLH t Transition Time THL t Time Delay Output High DOH R = 1KΩ T Time Delay Output High R = 100KΩ T Δt / ΔV Drift In Time Delay ...

Page 6

Typical Performance Characteristics Minimum Pulse Width Required for Triggering High Output Voltage vs. Output Source Current Low Output Voltage vs. Output Sink Current www.national.com 20153704 20153720 20153722 6 201537 Version 3 Revision 1 Print Date/Time: 2010/10/01 00:30:58 Supply Current vs. ...

Page 7

Output Propagation Delay vs. Voltage Level of Trigger Pulse 20153724 Discharge Transistor (Pin 7) Voltage vs. Sink Current 20153726 201537 Version 3 Revision 1 Output Propagation Delay vs. Voltage Level of Trigger Pulse Discharge Transistor (Pin 7) Voltage vs. Sink ...

Page 8

Applications Information MONOSTABLE OPERATION In this mode of operation, the timer functions as a one-shot (Figure 1). The external capacitor is initially held discharged by a transistor inside the timer. Upon application of a negative trigger pulse of less than ...

Page 9

Figure 5 shows the waveforms generated in this mode of op- eration Top Trace: Output 5V/Div. CC TIME = 20μs/DIV. Bottom Trace: Capacitor Voltage 1V/Div 3.9kΩ 3kΩ 0.01μF FIGURE ...

Page 10

Figure 11 shows the waveforms gen- erated for a triangle wave modulation signal. FIGURE 10. Pulse Position Modulator Top Trace: Modulation Input 1V/Div. CC TIME = 0.1 ms/DIV. Bottom Trace: Output 2V/Div. ...

Page 11

FIGURE 14. 50% Duty Cycle Oscillator 201537 Version 3 Revision 1 Note that this circuit will not oscillate because the junction 1/3 V and trigger the lower comparator. CC ADDITIONAL INFORMATION Adequate power ...

Page 12

Revision History Date Released Revision Section 08/04/05 A 07/25/06 B 09/27/2010 C www.national.com New Release to corporate format Applications Information, page 8 Obsolete Data Sheet 12 201537 Version 3 Revision 1 Print Date/Time: 2010/10/01 00:30:58 Changes 1 MDS datasheet converted ...

Page 13

Physical Dimensions inches (millimeters) unless otherwise noted 201537 Version 3 Revision 1 8LD Ceramic Dip Package (J) NS Package Number J08A 13 Print Date/Time: 2010/10/01 00:30:58 www.national.com ...

Page 14

Metal Can Package (H) NS Package Number H08A 14 201537 Version 3 Revision 1 Print Date/Time: 2010/10/01 00:30:58 ...

Page 15

Notes 15 201537 Version 3 Revision 1 Print Date/Time: 2010/10/01 00:30:58 www.national.com ...

Page 16

... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

Related keywords