TI TLC552C

TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
D
D
D
D
D
D
D
D
D
Very Low Power Consumption . . . 2 mW
Typ at VDD = 5 V
Capable of Operation in Astable Mode
CMOS Output Capable of Swinging Rail to
Rail
High Output-Current Capability
Sink 100 mA Typ
Source 10 mA Typ
Output Fully Compatible With CMOS, TTL,
and MOS
Low Supply Current Reduces Spikes
During Output Transitions
High-Impedance Inputs . . . 1012 Ω Typ
Single-Supply Operation From 1 V to 18 V
Functionally Interchangeable With the
NE556; Has Same Pinout
D OR N PACKAGE
(TOP VIEW)
DSCH
THRES
CONT
RESET
OUT
TRIG
GND
TIMER
#1
1
14
2
13
3
12
4
11
5
10
6
9
7
8
VDD
DSCH
THRES
CONT
RESET
OUT
TRIG
TIMER
#2
functional block diagram (each timer)
VDD
CONT
RESET
R
R1
THRES
R
description
1
OUT
S
The TLC552 is a dual monolithic timing circuit
fabricated using TI LinCMOS process, which
provides full compatibility with CMOS, TTL, and
MOS logic and operation at frequencies up to
2 MHz. Accurate time delays and oscillations are
possible with smaller, less-expensive timing
capacitors than the NE555 because of the high
input impedance. Power consumption is low
across the full range of power supply voltages.
R
TRIG
R
DSCH
GND
RESET can override TRIG and THRES.
TRIG can override THRES.
Like the NE556, the TLC552 has a trigger level
AVAILABLE OPTIONS
approximately one-third of the supply voltage and
SYMBOLIZATION
a threshold level approximately two-thirds of the
OPERATING
VT max
TEMPERATURE
PACKAGE
supply voltage. These levels can be altered by use
DEVICE
at 25°C
RANGE
SUFFIX
of the control voltage terminal. When the trigger
TLC552C
D,N
0°C to 70°C
3.8 mV
input falls below the trigger level, the flip-flop is set
and the output goes high. If the trigger input is
The D packages are available taped and reeled. Add the suffix R
above the trigger level and the threshold input is
to the device type when ordering (i.e., TLC552CDR).
above the threshold level, the flip-flop is reset and
the output is low. The reset input can override all other inputs and can be used to initiate a new
timing cycle. If the reset input is low, the flip-flop is reset and the output is low. Whenever the output is low, a
low-impedance path is provided between the discharge terminal and ground.
While the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA, the TLC552 exhibits greatly
reduced supply-current spikes during output transitions. This minimizes the need for the large decoupling
capacitors required by the NE556.
LinCMOS is a trademark of Texas Instruments Incorporated.
Copyright  1988, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
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1
TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
description (continued)
These devices have internal electrostatic discharge (ESD) protection circuits that will prevent catastrophic
failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3105.2. However, care should be
exercised in handling these devices as exposure to ESD may result in a degradation of the device parametric
performance.
All unused inputs should be tied to an appropriate logic level to prevent false triggering.
The TLC552C is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
RESET VOLTAGE†
TRIGGER
VOLTAGE†
THRESHOLD
VOLTAGE†
OUTPUT
DISCHARGE
SWITCH
< MIN
Irrelevant
Irrelevant
Low
On
> MAX
< MIN
Irrelevant
High
Off
> MAX
> MAX
> MAX
Low
On
> MAX
> MAX
< MIN
As previously established
† For conditions shown as MIN or MAX, use the appropriate value specified under electrical characteristics.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Input voltage range (any input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to VDD
Sink current, DSCH or OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mA
Source current, OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 mA
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 75°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
NOTES: 1. All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
D
N
POWER RATING
DERATING FACTOR
ABOVE TA
7.6 mW/°C
9.2 mW/°C
25°C
25°C
950 mW
1150 mW
recommended operating conditions
MIN
MAX
Supply voltage, VDD
1
18
V
Operating free-air temperature range, TA
0
70
°C
2
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UNIT
TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
electrical characteristics at specified free-air temperature, VDD = 1 V
PARAMETER
TEST CONDITIONS
Threshold voltage level
Threshold current
Trigger voltage level
Trigger current
Reset voltage level
Reset current
Control voltage (open-circuit) as a percentage of supply voltage
Discharge switch on-state
on state voltage
IOL = 100 µA
off state current
Discharge switch off-state
Low level output voltage
Low-level
IOL = 100 µA
High level output voltage
High-level
IOH = – 10 µA
TA†
25°C
MIN
TYP
MAX
0.475
0.67
0.85
Full range
0.45
25°C
10
MAX
75
25°C
0.15
Full range
0.1
0.33
10
MAX
75
25°C
0.4
Full range
0.3
0.7
10
MAX
75
MAX
66.7%
25°C
0.02
Full range
0.1
MAX
0.5
25°C
0.03
Full range
1
0.6
Full range
0.6
0.15
V
nA
0.2
0.98
30
V
pA
0.25
25°C
V
pA
0.2
25°C
Full range
0.425
1
25°C
V
pA
1.45
25°C
25°C
Supply current
0.875
UNIT
V
V
200
300
µA
† Full range (MIN to MAX) is 0°C to 70°C.
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3
TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
electrical characteristics at specified free-air temperature, VDD = 2 V
PARAMETER
TEST CONDITIONS
Threshold voltage level
Threshold current
Trigger voltage level
Trigger current
Reset voltage level
Reset current
Control voltage (open-circuit) as a percentage of supply voltage
Discharge switch on-state
on state voltage
IOL = 1 mA
off state current
Discharge switch off-state
Low level output voltage
Low-level
IOL = 1 mA
High level output voltage
High-level
IOH = – 300 µA
MIN
TYP
MAX
0.95
1.33
1.65
Full range
0.85
10
MAX
75
25°C
0.4
Full range
0.3
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0.67
10
MAX
75
25°C
0.4
Full range
0.3
1.1
0.95
10
MAX
75
MAX
66.7%
25°C
0.03
Full range
1.5
0.1
MAX
0.5
25°C
0.07
Full range
0.2
1.5
Full range
1.5
0.3
1.9
130
V
V
nA
0.35
25°C
V
pA
0.25
25°C
V
pA
1.8
25°C
UNIT
pA
1.05
25°C
Full range
† Full range (MIN to MAX) is 0°C to 70°C.
1.75
25°C
25°C
Supply current
4
TA†
25°C
V
V
500
800
µA
TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
electrical characteristics at specified free-air temperature, VDD = 5 V
PARAMETER
TEST CONDITIONS
Threshold voltage level
Threshold current
Trigger voltage level
Trigger current
Reset voltage level
Reset current
Control voltage (open-circuit) as a percentage of supply voltage
Discharge switch on-state
on state voltage
IOL = 10 mA
off state current
Discharge switch off-state
IOL = 8 mA
Low level output voltage
Low-level
IOL = 5 mA
IOL = 3.2
3 2 mA
High level output voltage
High-level
IOH = – 1 mA
TA†
25°C
MIN
TYP
MAX
2.8
3.3
3.8
Full range
2.7
25°C
10
MAX
75
25°C
1.36
Full range
1.26
1.66
10
MAX
75
25°C
0.4
Full range
0.3
1.1
10
MAX
75
MAX
66.7%
25°C
0.14
Full range
0.1
MAX
0.5
25°C
0.21
Full range
V
pA
1.5
V
pA
0.5
0.6
25°C
V
nA
0.4
0.5
25°C
0.13
Full range
0.3
0.4
25°C
0.08
Full range
V
0.3
0.35
25°C
4.1
Full range
4.1
Full range
1.96
1.8
25°C
V
pA
2.06
25°C
25°C
Supply current
3.9
UNIT
4.8
340
V
700
1000
µA
† Full range (MIN to MAX) is 0°C to 70°C.
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5
TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
electrical characteristics at specified free-air temperature, VDD = 15 V
PARAMETER
TEST CONDITIONS
Threshold voltage level
Threshold current
Trigger voltage level
Trigger current
Reset voltage level
Reset current
Control voltage (open-circuit) as a percentage of supply voltage
Discharge switch on-state
on state voltage
IOL = 100 mA
off state current
Discharge switch off-state
IOL = 100 mA
Low level output voltage
Low-level
IOL = 50 mA
IOL = 10 mA
IOH = – 10 mA
High level output voltage
High-level
IOH = – 5 mA
IOH = – 1 mA
MIN
TYP
MAX
9.45
10
10.55
Full range
9.35
10
MAX
75
25°C
4.65
Full range
4.55
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5
10
MAX
75
25°C
0.4
Full range
0.3
1.1
5.35
10
MAX
75
MAX
66.7%
25°C
0.77
Full range
1.5
0.1
MAX
0.5
25°C
1.28
Full range
V
V
pA
1.7
1.8
25°C
V
pA
1.8
25°C
UNIT
pA
5.45
25°C
V
nA
3.2
3.6
25°C
0.63
Full range
1
1.3
25°C
0.12
Full range
V
0.3
0.4
25°C
12.5
Full range
12.5
25°C
13.5
Full range
13.5
25°C
14.2
Full range
14.2
Full range
† Full range (MIN to MAX) is 0°C to 70°C.
10.65
25°C
25°C
Supply current
6
TA†
25°C
14.2
14.6
V
14.9
0.72
1.2
1.6
mA
TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
electrical characteristics at specified free-air temperature, VDD = 18 V
PARAMETER
TEST CONDITIONS
Threshold voltage level
Threshold current
Trigger voltage level
Trigger current
Reset voltage level
Reset current
Control voltage (open-circuit) as a percentage of supply voltage
Discharge switch on-state
on state voltage
IOL = 100 mA
off state current
Discharge switch off-state
Low level output voltage
Low-level
IOL = 3
3.2
2 mA
High level output voltage
High-level
IOH = – 1 mA
TA†
25°C
MIN
TYP
MAX
11.4
12
12.6
Full range
10.9
25°C
10
MAX
75
25°C
5.6
Full range
5.5
6
10
MAX
75
25°C
0.4
Full range
0.3
1.1
6.4
10
MAX
75
MAX
66.7%
25°C
0.72
Full range
1.5
0.1
MAX
0.5
25°C
0.04
Full range
1.5
17.3
Full range
17.3
0.3
17.9
0.84
Full range
V
nA
0.35
25°C
V
pA
1.6
25°C
V
pA
1.8
25°C
V
pA
6.5
25°C
25°C
Supply current
12.7
UNIT
V
V
1.2
1.6
mA
† Full range (MIN to MAX) is 0°C to 70°C.
operating characteristics, VDD = 5 V, TA = 25°C (unless otherwise noted)
PARAMETER
Initial error of timing interval‡
Supply voltage sensitivity of timing interval
Output pulse rise time
Output pulse fall time
Maximum frequency in astable mode
TEST CONDITIONS
VDD = 5 V to 15 V,,
CT = 0.1 µF,
MIN
RA = RB = 1 kΩ to 100 kΩ,,
See Note 2
RL = 10 MΩ,
MΩ
CL = 10 pF
RA = 470 Ω,
CT = 200 pF,
RB = 200 Ω,
See Note 2
1.2
TYP
MAX
1%
3%
0.1
0.5
20
75
15
60
2.8
UNIT
%/V
ns
MHz
‡ Timing interval error is defined as the difference between the measured value and the nominal value of a random sample.
NOTE 2: RA, RB, and CT are as defined in Figure 1.
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TLC552C
DUAL LINCMOS TIMER
SLFS046 – FEBRUARY 1984 – REVISED MAY 1988
APPLICATION INFORMATION
VDD
0.1 µF
RA
0.1 µF
CONT
VDD
RL
RESET
DISCH
OUT
RB
Output
THRES
TRIG
CL
CT
GND
Figure 1. Circuit for Astable Operation
8
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