Datasheet

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
3
69921234fc
orDer inForMaTion
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Test conditions are V
+
= 2.25V to 5.5V, V
MOD
= 0V to V
SET
,
DIVCODE = 0 to 15 (N
DIV
= 1 to 16,384), R
SET
= 50k to 800k, R
LOAD
= 5k, C
LOAD
= 5pF unless otherwise noted.
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Oscillation Frequency
f
OUT
Output Frequency 3.81 1000000 Hz
∆f
OUT
Frequency Accuracy (Note 4) 3.81Hz ≤ f
OUT
≤ 1MHz
l
±0.8 ±1.7
±2.4
%
%
∆f
OUT
/∆T
Frequency Drift Over Temperature
l
±0.005 %/°C
∆f
OUT
/∆V
+
Frequency Drift Over Supply V
+
= 4.5V to 5.5V
V
+
= 2.25V to 4.5V
l
l
0.25
0.08
0.65
0.18
%/V
%/V
Long-Term Frequency Stability (Note 10) 90 ppm/√kHr
Period Jitter (Note 9) N
DIV
= 1 1.2 %
P-P
N
DIV
= 4 0.4
0.07
%
P-P
%
RMS
N
DIV
= 16 0.15
0.022
%
P-P
%
RMS
Pulse Width Modulation
∆D
PWM Duty Cycle Accuracy V
MOD
= 0.2 • V
SET
to 0.8 • V
SET
V
MOD
= 0.2 • V
SET
to 0.8 • V
SET
V
MOD
< 0.2 • V
SET
or V
MOD
> 0.8 • V
SET
l
l
±3.0 ±3.7
±4.5
±4.9
%
%
%
D
MAX
Maximum Duty Cycle Limit LTC6992-1/LTC6992-4, POL = 0, V
MOD
= 1V
l
100 %
LTC6992-2/LTC6992-3, POL = 0, V
MOD
= 1V
l
90.5 95 99 %
D
MIN
Minimum Duty Cycle Limit LTC6992-1/LTC6992-3, POL = 0, V
MOD
= 0V
l
0 %
LTC6992-2/LTC6992-4, POL = 0, V
MOD
= 0V
l
1 5 9.5 %
t
S,PWM
Duty Cycle Settling Time (Note 6) t
MASTER
= t
OUT
/N
DIV
8•t
MASTER
µs
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LTC6992CDCB-4#TRMPBF LTC6992CDCB-4#TRPBF LFCR
6-Lead (2mm × 3mm) Plastic DFN
0°C to 70°C
LTC6992IDCB-4#TRMPBF LTC6992IDCB-4#TRPBF LFCR
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 85°C
LTC6992HDCB-4#TRMPBF LTC6992HDCB-4#TRPBF LFCR
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
LTC6992CS6-4#TRMPBF LTC6992CS6-4#TRPBF LTFCS 6-Lead Plastic TSOT-23 0°C to 70°C
LTC6992IS6-4#TRMPBF LTC6992IS6-4#TRPBF LTFCS 6-Lead Plastic TSOT-23 –40°C to 85°C
LTC6992HS6-4#TRMPBF LTC6992HS6-4#TRPBF LTFCS 6-Lead Plastic TSOT-23 –40°C to 125°C
LTC6992MPS6-1#TRMPBF LTC6992MPS6-1#TRPBF LTDXB 6-Lead Plastic TSOT-23 –55°C to 125°C
LTC6992MPS6-2#TRMPBF LTC6992MPS6-2#TRPBF LTDXD 6-Lead Plastic TSOT-23 –55°C to 125°C
LTC6992MPS6-3#TRMPBF LTC6992MPS6-3#TRPBF LTFCQ 6-Lead Plastic TSOT-23 –55°C to 125°C
LTC6992MPS6-4#TRMPBF LTC6992MPS6-4#TRPBF LTFCS 6-Lead Plastic TSOT-23 –55°C to 125°C
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.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/