LTC6994CS6-2#TRMPBF Linear Technology, LTC6994CS6-2#TRMPBF Datasheet

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LTC6994CS6-2#TRMPBF

Manufacturer Part Number
LTC6994CS6-2#TRMPBF
Description
IC, TIMERBLOX, SINGLE, 5.5V, 6-TSOT-23
Manufacturer
Linear Technology
Datasheet

Specifications of LTC6994CS6-2#TRMPBF

Operating Mode
Monostable
No. Of Timers
1
Clock External Input
No
Supply Voltage Range
2.25V To 5.5V
Digital Ic Case Style
TSOT-23
No. Of Pins
6
Operating Temperature Range
0°C To +70°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC6994CS6-2#TRMPBFLTC6994CS6-2
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC6994CS6-2#TRMPBFLTC6994CS6-2#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC6994CS6-2#TRMPBF
Manufacturer:
LT
Quantity:
330
FEATURES
APPLICATIONS
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
TimerBlox and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
TYPICAL APPLICATION
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Delay Range: 1µs to 33.6 Seconds
Configured with 1 to 3 Resistors
Delay Max Error:
– <2.3% for Delay > 512µs
– <3.4% for Delay of 8µs to 512µs
– <5.1% for Delay of 1µs to 8µs
Delay One or Both Rising/Falling Edges
2.25V to 5.5V Single Supply Operation
70µA Supply Current at 10µs Delay
500µs Start-Up Time
CMOS Output Driver Sources/Sinks 20mA
–40°C to 125°C Operating Temperature Range
Available in Low Profile (1mm) SOT-23 (ThinSOT™)
and 2mm × 3mm DFN
Noise Discriminators/Pulse Qualifiers
Delay Matching
Switch Debouncing
High Vibration, High Acceleration Environments
Portable and Battery-Powered Equipment
NOISY
INPUT
R
75k
Noise Discriminator
SET
IN
GND
SET
LTC6994-2
699412 TA01a
OUT
DIV
V
+
3.3V
QUALIFIED
OUTPUT
0.1µF
DESCRIPTION
The LTC
range of 1µs to 33.6 seconds. The LTC6994 is part of the
TimerBlox™ family of versatile silicon timing devices.
A single resistor, R
cillator frequency, setting the LTC6994’s time base. The
input-to-output delay is determined by this master oscil-
lator and an internal clock divider, N
eight settings from 1 to 2
The output (OUT) follows the input (IN) after delaying the
rising and/or falling transitions. The LTC6994-1 will delay
the rising or falling edge. The LTC6994-2 will delay both
transitions, and adds the option to invert the output.
The LTC6994 also offers the ability to dynamically adjust
the delay time via a separate control voltage.
The LTC6994 is available in the 6-lead SOT-23 (ThinSOT)
and 6-lead 2mm × 3mm DFN packages.
t
DELAY
LTC6994-1
LTC6994-2
2V/DIV
2V/DIV
TimerBlox: Delay Block/
DEVICE
OUT
®
IN
6994 is a programmable delay block with a
=
LTC6994-1/LTC6994-2
N
DIV
50kΩ
•R
1.5µs
SET
SET
, programs an internal master os-
• 1µs, N
21
20µs/DIV
:
1.5µs
DELAY FUNCTION
Debouncer
DIV
DIV
= 1, 8, 64,...,2
or
or
, programmable to
699412 TA01b
21
699412f
1

Related parts for LTC6994CS6-2#TRMPBF

LTC6994CS6-2#TRMPBF Summary of contents

Page 1

... High Vibration, High Acceleration Environments n Portable and Battery-Powered Equipment n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and TimerBlox and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION ...

Page 2

... LTC6994IDCB-2#TRPBF LTC6994HDCB-2#TRMPBF LTC6994HDCB-2#TRPBF LTC6994CS6-1#TRMPBF LTC6994CS6-1#TRPBF LTC6994IS6-1#TRMPBF LTC6994IS6-1#TRPBF LTC6994HS6-1#TRMPBF LTC6994HS6-1#TRPBF LTC6994CS6-2#TRMPBF LTC6994CS6-2#TRPBF LTC6994IS6-2#TRMPBF LTC6994IS6-2#TRPBF LTC6994HS6-2#TRMPBF LTC6994HS6-2#TRPBF TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on lead based finish parts. ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are 50k to 800k, R DIV SET LOAD SYMBOL PARAMETER t Delay Time DELAY ∆t Delay Accuracy (Note 4) DELAY ∆t /∆T Delay ...

Page 4

LTC6994-1/LTC6994-2 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are 50k to 800k, R DIV SET LOAD SYMBOL PARAMETER Digital I/O IN Pin Input Capacitance IN Pin Input Current V High ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS + V = 3.3V 200k and T = 25°C unless otherwise noted. SET A Delay Drift vs Temperature (N ≤ 64) DIV 1 50k SET 3 PARTS 1.0 0.5 0 –0.5 –1.0 –1.5 ...

Page 6

LTC6994-1/LTC6994-2 TYPICAL PERFORMANCE CHARACTERISTICS + V = 3.3V 200k and T = 25°C unless otherwise noted. SET A Delay Error SET DIV 5 RISING EDGE DELAY 4 3 PARTS ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS + V = 3.3V 200k and T = 25°C unless otherwise noted. SET A Typical V Distribution SET 250 2 LOTS DFN AND SOT-23 1274 UNITS 200 150 100 50 0 0.98 0.988 0.996 1.004 ...

Page 8

LTC6994-1/LTC6994-2 TYPICAL PERFORMANCE CHARACTERISTICS + V = 3.3V 200k and T = 25°C unless otherwise noted. SET A Input Propagation Delay ( Supply Voltage 5pF LOAD ...

Page 9

PIN FUNCTIONS (DCB/S6) than 100pF maintains the stability of the feedback circuit regulating the V voltage. SET + V IN OUT LTC6994 + GND V C1 0.1µF SET DIV R 699412 PF SET BLOCK DIAGRAM (S6 package pin numbers shown) ...

Page 10

LTC6994-1/LTC6994-2 OPERATION The LTC6994 is built around a master oscillator with a 1µs minimum period. The oscillator is controlled by the SET pin current (I ) and voltage (V SET SET conversion factor that is accurate to ±1.7% under typical ...

Page 11

OPERATION If the voltage is generated by other means (i.e., the output + of a DAC) it must track the V supply voltage. The last column in Table 1 shows the ideal ratio of V supply voltage, which can also ...

Page 12

LTC6994-1/LTC6994-2 OPERATION Edge-Controlled Delay The LTC6994 is a programmable delay or pulse qualifier. It can perform noise filtering, which distinguishes it from a delay line (which simply delays all input transitions). When the voltage on the LTC6994 input pin (IN) ...

Page 13

OPERATION LTC6994-2 Functionality Figures 5 details the basic operation of the LTC6994-2 when configured for noninverting operation (POL = 0). As before, a rising edge on the IN pin initiates the timing and remains high, OUT will transition ...

Page 14

LTC6994-1/LTC6994-2 OPERATION Changing DIVCODE After Start-Up Following start-up, the A/D converter will continue monitoring V for changes. Changes to DIVCODE will DIV be recognized slowly, as the LTC6994 places a priority on eliminating any “wandering” in the DIVCODE. The typical ...

Page 15

APPLICATIONS INFORMATION Basic Operation The simplest and most accurate method to program the LTC6994 is to use a single resistor, R SET and GND pins. The design procedure is a 3-step process. Step 1: Select the LTC6994 Version and POL ...

Page 16

LTC6994-1/LTC6994-2 APPLICATIONS INFORMATION Voltage-Controlled Delay With one additional resistor, the LTC6994 output delay can be manipulated by an external voltage. As shown in Figure 10, voltage V sources/sinks a current through CTRL R to vary the I current, which in ...

Page 17

APPLICATIONS INFORMATION Settling Time Following a 2× or 0.5× step change in I put delay takes approximately six master clock cycles (6 • settle to within 1% of the final value. MASTER An example is shown in ...

Page 18

LTC6994-1/LTC6994-2 APPLICATIONS INFORMATION Power Supply Current The Electrical Characteristics table specifies the supply current while the part is idle (waiting for an input transi- tion). I varies with the programmed t S(IDLE) supply voltage, as described by the equations in ...

Page 19

APPLICATIONS INFORMATION Supply Bypassing and PCB Layout Guidelines The LTC6994 is an accurate monostable multivibrator when used in the appropriate manner. The part is simple to use and by following a few rules, the expected performance is easily achieved. Adequate ...

Page 20

LTC6994-1/LTC6994-2 TYPICAL APPLICATIONS IN 604k IN OUT OUT OR 20 Delayed One-Shot IN OUT TRIG OUT LTC6994-1 LTC6993 GND V GND V 0.1µF SET DIV SET DIV 121k 50ms t = 10ms RISE DELAY ONESHOT ...

Page 21

TYPICAL APPLICATIONS IN OUT 10µs LOAD LOW IN LOAD HIGH 787k 787k Edge Chatter Filter IN OUT IN OUT LTC6994-2 + GND V 0.1µF SET DIV 499k 10µs INPUT MUST BE STABLE FOR AT LEAST 10µs 10µs 10µs NORMAL NOISY ...

Page 22

LTC6994-1/LTC6994-2 PACKAGE DESCRIPTION 1.65 ±0.05 3.55 ±0.05 (2 SIDES) 2.15 ±0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS PIN 1 BAR TOP MARK (SEE NOTE 6) 0.200 REF 22 DCB Package 6-Lead Plastic DFN (2mm × 3mm) (Reference LTC DWG # ...

Page 23

... MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. S6 Package ...

Page 24

... Simple PWM with Wide Frequency Range Resistor-Programmable Pulse Width of 1µs to 34s www.linear.com ● ACTIVE LOW OUT IN OUT LTC6994 GND V 0.1µF 681k SET DIV 1M t ≅ 3s DELAY HOLD DELAY 699412 TA07 = 35µA at 400kHz SUPPLY LT 1010 • PRINTED IN USA  LINEAR TECHNOLOGY CORPORA TION 2010 699412f ...

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