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參數資料
| 型號： | LTC6992CDCB6-2#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO6 |
| 封裝： | 2 X 3 MM, LEAD FREE, PLASTIC, MO-229TBD, DFN-6 |
| 文件頁數： | 1/32頁 |
| 文件大小： | 322K |
| 代理商： | LTC6992CDCB6-2#PBF |
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Electrical Specifications Subject to Change
LTC6992-1/-2/-3/-4
1
69921234p
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.
fOUT =
1MHz
NDIV
50k
Ω
RSET
,NDIV = 1,4,16 …16384
Applying a voltage between 0V and 1V on the MOD pin sets
the duty cycle, according to the following formula:
Duty Cycle
=
VMOD
0.8 VSET
1
8
VMOD 100mV
800mV
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
OUTPUT DUTY CYCLE LIMITS
MIN
MAX
LTC6992-1
0% to 100%
GND
V+
LTC6992-2
5% to 95%
LTC6992-3
0% to 95%
GND
LTC6992-4
5% to 100%
V+
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 Single Resistor Programs Frequency with < 2.4%
Maximum Error
n PWM Duty Cycle Error < 4.5% 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, 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.
FEATURES
APPLICATIONS
n LED Dimming Control
n PWM Servo Loops
n High Vibration, High Acceleration Environments
n Portable and Battery-Powered Equipment
6992 TA01a
LTC6992
MOD
GND
SET
OUT
V+
DIV
RSET
50k
V+
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
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC6992CDCB6-2-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox Voltage-Controlled Pulse Width Modulator (PWM) |
| LTC6992CDCB6-3-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox Voltage-Controlled Pulse Width Modulator (PWM) |
| LTC6992CDCB6-3-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox Voltage-Controlled Pulse Width Modulator (PWM) |
| LTC6992CDCB6-4-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox Voltage-Controlled Pulse Width Modulator (PWM) |
| LTC6992CDCB6-4-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox Voltage-Controlled Pulse Width Modulator (PWM) |
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