NJM555
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TIMER
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
The NJM555 monolithic timing circuit is a highly stable controller
capable of producing accruate time delays or oscillation. In the time
delay mode, delay time is precisely controlled by only two external
parts : a resistor and a capacitor. For operation as an oscillator, both
the free running frequency and the duty cycle are accurately controlled
by two external resistors and a capacitor.
Terminals are provided for triggering and resetting. The circuit will
trigger and reset on falling waveforms. The output can source or sink
up to 200mA or drive TTL circuits.
■ FEATURES
● Operating Voltage (4.5V to 16V)
● Less Number of External Components
● Package Outline DIP8, DMP8, SSOP8, SIP8
● Bipolar Technology
■ PIN CONFIGURATION
■ EQUIVALENT CIRCUIT
NJM555D
NJM555L
NJM555M
NJM555V
NJM555D
NJM555M
NJM555V
NJM555L
NJM555
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■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYMBOL RATINGS UNIT
Supply Voltage V+ 18 V
Power Dissipation PD (DIP8) 1000(Note1) mW
(DMP8) 580(Note1) mW
(SSOP8) 480(Note1) mW
(SIP8) 1600(Note1) mW
Operating Temperature Range Topr -40 to +85 °C
Storage Temperature Range Tstg -40 to +125 °C
Note1: Mounted on the EIA/JEDEC standard board (76.2×114.3×1.6mm, four layer, FR-4).
■ ELECTRICAL CHARACTERISTICS (V+=5 to 15V, Ta=25°C)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Voltage V+ 4.5 - 16 V
Operating Current ICC V
+=5V, RL=∞(Note 2) - 3.0 6.0 mA
Operating Current ICC V
+=15V, RL=∞(Note 2) - 10 15 mA
Timing Error
Initial Accuracy Et T
a=-20 to 75°C, V+=5 to 15V(Note 3) - 1.0 - %
Drift with Temperature Et T
a=-20 to 75°C, V+=5 to 15V(Note 3) - 50 - ppm / °C
Drift with Supply Voltage Et T
a=-20 to 75°C, V+=5 to 15V(Note 3) - 0.1 - % / V
Threshold Voltage Vth - 2 / 3 - ×V+
Trigger Voltage VT V
+=15V - 5.0 - V
Trigger Voltage VT V
+=5V - 1.67 - V
Trigger Current IT - 0.5 - µA
Reset Voltage VR 0.4 0.5 1.0 V
Reset Current IR - 0.1 - mA
Threshold Curret Ith - 0.1 0.25 µA
Control Voltage Level VCL V
+=15V 9 10 11 V
Control Voltage Level VCL V
+=5V 2.6 3.33 4.0 V
Output Voltage (Low) VOL V
+=15V Isink=10mA - 0.1 0.25 V
Output Voltage (Low) VOL V
+=15V Isink=50mA - 0.4 0.75 V
Output Voltage (Low) VOL V
+=15V Isink=100mA - 2.0 2.5 V
Output Voltage (Low) VOL V
+=15V Isink=200mA - 2.5 - V
Output Voltage (Low) VOL V
+=5V Isink=5mA - 0.25 0.35 V
Output Voltage (High) VOH V
+=15V Isource=200mA - 12.5 - V
Output Voltage (High) VOH V
+=15V Isource=100mA 12.75 13.3 - V
Output Voltage (High) VOH V
+=15V Isource=40mA - 13.5 - V
Output Voltage (High) VOH V
+=5V Isource=100mA 2.75 3.3 - V
Rise time of Output tr No Loading - 100 - ns
Fall time of Output tf No Loading - 100 - ns
Note 2 : Low output condition (When the output is high, it is lower than the low output condition by 1mA in the standard specificatio.)
Note 3 : RA, RB=1k to 100kΩ, C=0.1µF, V+=15V from 5V
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■ TYPICAL APPLICATION
(1) 50% Duty Cycle Oscillator
(2) Oscillation frequency can be changed by changing the control voltage.
(3) Pulse Width Modulation
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■ TYPICAL CHARACTERISTICS
Operating Current vs. Operating Voltage Delay Time vs. Temperature
Delay Time vs. Operating Voltage
High Output Voltage Drop vs. Output Source Current
Low Output Voltage vs. Output Sink Current
Low Output Voltage vs. Output Sink Current
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■ TYPICAL CHARACTERISTICS
1. Monostable Operation 2. Free Running Operation
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[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
