LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
TimerBlox:
Voltage-Controlled Pulse
Width Modulator (PWM)
Fea T Descrip T
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Pulse Width Modulation (PWM) Controlled by The LTC 6992 is a silicon oscillator with an easy-to-use
Simple 0V to 1V Analog Input analog voltage-controlled pulse width modulation (PWM)
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Four Available Options Define Duty Cycle Limits capability. The LTC6992 is part of the TimerBlox family
Minimum Duty Cycle at 0% or 5% of versatile silicon timing devices.
Maximum Duty Cycle at 95% or 100%
A single resistor, R , programs the LTC6992s inter-
SET
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Frequency Range: 3.81Hz to 1MHz
nal master oscillator frequency. The output frequency
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Configured with 1 to 3 Resistors
is determined by this master oscillator and an internal
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<1.7% Maximum Frequency Error
frequency divider, N , programmable to eight settings
DIV
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PWM Duty Cycle Error < 3.7% Maximum
from 1 to 16384.
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Frequency Modulation (VCO) Capability
1MHz 50k
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2.25V to 5.5V Single Supply Operation
f = ,N = 1,4,16 16384
OUT DIV
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115A Supply Current at 100kHz N R
DIV SET
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500s Start-Up Time
Applying a voltage between 0V and 1V on the MOD pin
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CMOS Output Driver Sources/Sinks 20mA
sets the duty cycle.
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55C to 125C Operating Temperature Range
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The four versions differ in their minimum/maximum duty
Available in Low Profile (1mm) SOT-23 (ThinSOT)
cycle. Note that a minimum duty cycle limit of 0% or
and 2mm 3mm DFN
maximum duty cycle limit of 100% allows oscillations to
stop at the extreme duty cycle settings.
a T
DEVICE NAME PWM DUTY CYCLE RANGE
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PWM Servo Loops
LTC6992-1 0% to 100%
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Heater Control
LTC6992-2 5% to 95%
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LED Dimming Control
LTC6992-3 0% to 95%
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High Vibration, High Acceleration Environments
LTC6992-4 5% to 100%
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Portable and Battery-Powered Equipment
For easy configuration of the LTC6992, download the
L, LT, LTC and LTM, Linear Technology, TimerBlox and the Linear logo are registered
trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks
TimerBlox Designer tool at www.linear.com/timerblox.
are the property of their respective owners.
Typical a T
1MHz Pulse Width Modulator
ANALOG PWM
DUTY CYCLE
MOD OUT MOD
CONTROL
0.5V/DIV
LTC6992
(0V TO 1V)
3.3V
+
GND V
C1
OUT
0.1F
1V/DIV
SET DIV
6992 TA01a
R
SET
50k
6992 TA01b
2s/DIV
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ion uresLTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
a Te Maxi Mu M r a T (Note 1)
+
Supply Voltage (V ) to GND ..........6V Specified Temperature Range (Note 3)
Maximum Voltage On Any Pin LTC6992C ................................................ 0C to 70C
+
.............................(GND 0.3V) V (V + 0.3V) LTC6992I .............................................40C to 85C
PIN
Operating Temperature Range (Note 2) LTC6992H .......................................... 40C to 125C
LTC6992C ............................................40C to 85C LTC6992MP ....................................... 55C to 125C
LTC6992I .............................................40C to 85C Junction Temperature .......................................... 150C
LTC6992H .......................................... 40C to 125C Storage Temperature Range .................. 65C to 150C
LTC6992MP ....................................... 55C to 125C Lead Temperature (Soldering, 10 sec)
S6 Package .......................................................300C
p in c F T
TOP VIEW
TOP VIEW
6
V+ 1 OUT
MOD 1 6 OUT
7
DIV 2 5 GND
+
GND GND 2 5 V
SET 3 4 MOD
SET 3 4 DIV
S6 PACKAGE
DCB PACKAGE
6-LEAD PLASTIC TSOT-23
6-LEAD (2mm 3mm) PLASTIC DFN
T = 150C, = 192C/W, = 51C/W
JMAX JA JC
T = 150C, = 64C/W, = 10.6C/W
JMAX JA JC
EXPOSED PAD (PIN 7) IS GND, PCB CONNECTION IS OPTIONAL
o r Der i n F Ma T
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LTC6992CDCB-1#TRMPBF LTC6992CDCB-1#TRPBF LDXC 6-Lead (2mm 3mm) Plastic DFN 0C to 70C
LTC6992IDCB-1#TRMPBF LTC6992IDCB-1#TRPBF LDXC 6-Lead (2mm 3mm) Plastic DFN 40C to 85C
LTC6992HDCB-1#TRMPBF LTC6992HDCB-1#TRPBF LDXC 40C to 125C
6-Lead (2mm 3mm) Plastic DFN
LTC6992CS6-1#TRMPBF LTC6992CS6-1#TRPBF LTDXB 6-Lead Plastic TSOT-23 0C to 70C
LTC6992IS6-1#TRMPBF LTC6992IS6-1#TRPBF LTDXB 6-Lead Plastic TSOT-23 40C to 85C
LTC6992HS6-1#TRMPBF LTC6992HS6-1#TRPBF LTDXB 6-Lead Plastic TSOT-23 40C to 125C
LTC6992CDCB-2#TRMPBF LTC6992CDCB-2#TRPBF LDXF 6-Lead (2mm 3mm) Plastic DFN 0C to 70C
LTC6992IDCB-2#TRMPBF LTC6992IDCB-2#TRPBF LDXF 40C to 85C
6-Lead (2mm 3mm) Plastic DFN
LTC6992HDCB-2#TRMPBF LTC6992HDCB-2#TRPBF LDXF 6-Lead (2mm 3mm) Plastic DFN 40C to 125C
LTC6992CS6-2#TRMPBF LTC6992CS6-2#TRPBF LTDXD 6-Lead Plastic TSOT-23 0C to 70C
LTC6992IS6-2#TRMPBF LTC6992IS6-2#TRPBF LTDXD 6-Lead Plastic TSOT-23 40C to 85C
LTC6992HS6-2#TRMPBF LTC6992HS6-2#TRPBF LTDXD 6-Lead Plastic TSOT-23 40C to 125C
LTC6992CDCB-3#TRMPBF LTC6992CDCB-3#TRPBF LFCP 6-Lead (2mm 3mm) Plastic DFN 0C to 70C
LTC6992IDCB-3#TRMPBF LTC6992IDCB-3#TRPBF LFCP 6-Lead (2mm 3mm) Plastic DFN 40C to 85C
LTC6992HDCB-3#TRMPBF LTC6992HDCB-3#TRPBF LFCP 6-Lead (2mm 3mm) Plastic DFN 40C to 125C
LTC6992CS6-3#TRMPBF LTC6992CS6-3#TRPBF LTFCQ 6-Lead Plastic TSOT-23 0C to 70C
LTC6992IS6-3#TRMPBF LTC6992IS6-3#TRPBF LTFCQ 6-Lead Plastic TSOT-23 40C to 85C
LTC6992HS6-3#TRMPBF LTC6992HS6-3#TRPBF LTFCQ 6-Lead Plastic TSOT-23 40C to 125C
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