参数资料
型号: LTC6992IS6-2#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 0.02 A SWITCHING CONTROLLER, PDSO6
封装: 1 MM HEIGHT, LEAD FREE, PLASTIC, MO-193, TSOT-23, 6 PIN
文件页数: 1/34页
文件大小: 2577K
代理商: LTC6992IS6-2#TRPBF
LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
1
69921234fb
TYPICAL APPLICATION
DESCRIPTION
TimerBlox:
Voltage-Controlled Pulse
Width Modulator (PWM)
The LTC6992 is a silicon oscillator with an easy-to-use
analog voltage-controlled pulse width modulation (PWM)
capability. The LTC6992 is part of the TimerBlox family
of versatile silicon timing devices.
A single resistor, RSET, programs the LTC6992’s inter-
nal master oscillator frequency. The output frequency
is determined by this master oscillator and an internal
frequency divider, NDIV, programmable to eight settings
from 1 to 16384.
f
OUT =
1MHz
N
DIV
50k
Ω
R
SET
,N
DIV = 1,4,16 …16384
Applying a voltage between 0V and 1V on the MOD pin
sets the duty cycle.
The four versions differ in their minimum/maximum duty
cycle. Note that a minimum duty cycle limit of 0% or
maximum duty cycle limit of 100% allows oscillations to
stop at the extreme duty cycle settings.
DEVICE NAME
PWM DUTY CYCLE RANGE
LTC6992-1
0% to 100%
LTC6992-2
5% to 95%
LTC6992-3
0% to 95%
LTC6992-4
5% to 100%
For easy configuration of the LTC6992, download the
TimerBlox Designer tool at www.linear.com/timerblox.
n Pulse Width Modulation (PWM) Controlled by
Simple 0V to 1V Analog Input
n Four Available Options Define Duty Cycle Limits
– Minimum Duty Cycle at 0% or 5%
– Maximum Duty Cycle at 95% or 100%
n Frequency Range: 3.81Hz to 1MHz
n Configured with 1 to 3 Resistors
n <1.7% Maximum Frequency Error
n PWM Duty Cycle Error < 3.7% Maximum
n Frequency Modulation (VCO) Capability
n 2.25V to 5.5V Single Supply Operation
n 115μA Supply Current at 100kHz
n 500μs Start-Up Time
n CMOS Output Driver Sources/Sinks 20mA
n –40°C to 125°C Operating Temperature Range
n Available in Low Profile (1mm) SOT-23 (ThinSOT)
and 2mm
× 3mm DFN
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
are the property of their respective owners.
FEATURES
APPLICATIONS
n PWM Servo Loops
n Heater Control
n LED Dimming Control
n High Vibration, High Acceleration Environments
n Portable and Battery-Powered Equipment
6992 TA01a
LTC6992
MOD
GND
SET
OUT
V+
DIV
RSET
50k
3.3V
ANALOG PWM
DUTY CYCLE
CONTROL
(0V TO 1V)
C1
0.1μF
1MHz Pulse Width Modulator
MOD
0.5V/DIV
OUT
1V/DIV
2μs/DIV
6992 TA01b
相关PDF资料
PDF描述
LTC6992HS6-3#TRMPBF 0.02 A SWITCHING CONTROLLER, PDSO6
LTC6992IS6-1#TRMPBF 0.02 A SWITCHING CONTROLLER, PDSO6
LTC6992CS6-2#TRPBF 0.02 A SWITCHING CONTROLLER, PDSO6
LTC6992CS6-1#TRPBF 0.02 A SWITCHING CONTROLLER, PDSO6
LTC6992CDCB-2#TRPBF 0.02 A SWITCHING CONTROLLER, PDSO6
相关代理商/技术参数
参数描述
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