LTC6992HDCB-4 Ver la hoja de datos (PDF) - Analog Devices
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LTC6992HDCB-4 Datasheet PDF : 34 Pages
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LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 2.25V to 5.5V, VMOD = 0V to VSET,
DIVCODE = 0 to 15 (NDIV = 1 to 16,384), RSET = 50k to 800k, RLOAD = 5k, CLOAD = 5pF unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Oscillation Frequency
fOUT
∆fOUT
Output Frequency
Frequency Accuracy (Note 4)
3.81Hz ≤ fOUT ≤ 1MHz
3.81
1000000
Hz
±0.8
±1.7
%
l
±2.4
%
∆fOUT/∆T Frequency Drift Over Temperature
∆fOUT/∆V+ Frequency Drift Over Supply
V+ = 4.5V to 5.5V
V+ = 2.25V to 4.5V
l
±0.005
%/°C
l
0.25
0.65
%/V
l
0.08
0.18
%/V
Long-Term Frequency Stability
(Note 10)
90
ppm/√kHr
Period Jitter (Note 9)
Pulse Width Modulation
NDIV = 1
NDIV = 4
NDIV = 16
1.2
0.4
0.07
0.15
0.022
%P-P
%P-P
%RMS
%P-P
%RMS
∆D
PWM Duty Cycle Accuracy
VMOD = 0.2 • VSET to 0.8 • VSET
VMOD = 0.2 • VSET to 0.8 • VSET
l
VMOD < 0.2 • VSET or VMOD > 0.8 • VSET
l
±3.0
±3.7
%
±4.5
%
±4.9
%
DMAX
Maximum Duty Cycle Limit
LTC6992-1/LTC6992-4, POL = 0, VMOD = l 100
%
1V
LTC6992-2/LTC6992-3, POL = 0, VMOD = l 90.5
95
99
%
1V
DMIN
Minimum Duty Cycle Limit
LTC6992-1/LTC6992-3, POL = 0, VMOD = l
0V
0
%
LTC6992-2/LTC6992-4, POL = 0, VMOD = l
1
5
9.5
%
0V
tS,PWM
Duty Cycle Settling Time (Note 6)
Power Supply
V+
Operating Supply Voltage Range
tMASTER = tOUT/NDIV
8 • tMASTER
µs
l 2.25
5.5
V
Power-On Reset Voltage
IS
Supply Current
RL = ∞, RSET = 50k,
NDIV = 1
RL = ∞, RSET = 50k,
NDIV = 4
RL = ∞, RSET = 50k,
NDIV ≥ 16
RL = ∞, RSET = 800k,
NDIV = 1 to 16,384
l
V+ = 5.5V
l
V+ = 2.25V l
V+ = 5.5V
l
V+ = 2.25V l
V+ = 5.5V
l
V+ = 2.25V l
V+ = 5.5V
l
V+ = 2.25V l
1.95
V
365
450
µA
225
285
µA
350
420
µA
225
280
µA
325
390
µA
215
265
µA
120
170
µA
105
150
µA
Rev. D
4
For more information www.analog.com
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