參數(shù)資料
型號(hào): LTC6992MPS6-4#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 18/34頁(yè)
文件大?。?/td> 0K
描述: IC OSC PWM VOLT CTLR TSOT23-6
特色產(chǎn)品: TimerBlox?
標(biāo)準(zhǔn)包裝: 2,500
系列: TimerBlox®
類型: 振蕩器 - 硅
頻率: 3.81Hz ~ 1MHz
電源電壓: 2.25 V ~ 5.5 V
電流 - 電源: 365µA
工作溫度: -55°C ~ 125°C
封裝/外殼: SOT-23-6 細(xì)型,TSOT-23-6
包裝: 帶卷 (TR)
供應(yīng)商設(shè)備封裝: TSOT-23-6
安裝類型: 表面貼裝
LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
25
69921234fc
Typical applicaTions
Changing Between Two Frequencies
6992 TA05
LTC6992-X
MOD
GND
SET
OUT
V+
DIV
R1
0.1F
R2
RSET
V+
NOTES
WHILE THIS CIRCUIT IS SIMPLER THAN THE CIRCUIT TO THE RIGHT,
ITS FREQUENCY ACCURACY IS WORSE DUE TO THE EFFECT OF
V+ SUPPLY VARIATION FROM SYSTEM TO SYSTEM AND OVER TEMPERATURE.
NOTES
1. WHEN THE NMOSFET IS OFF, THE FREQUENCY IS SET BY RSET = RSET1.
2. WHEN THE NMOSFET IS ON, THE FREQUENCY IS SET BY RSET = RSET1 || RSET2.
3. V+ SUPPLY VARIATION IS NOT A FACTOR AS THE SWITCHING RESISTOR IS
EITHER FLOATING OR CONNECTED TO GROUND.
RVCO
V+
‘HC04
fMAX
fMIN
ANALOG PWM
DUTY CYCLE CONTROL
(0V TO 1V)
LTC6992-X
MOD
GND
SET
OUT
V+
DIV
R1
R2
RSET1
RSET2
V+
ANALOG PWM
DUTY CYCLE CONTROL
(0V TO 1V)
V+
‘HC04
2N7002
fMIN
fMAX
Simple Diode Temperature Sensor
6992 TA06
LTC6992-2
MOD
GND
SET
OUT
V+
DIV
R4
1000k
MOC207M
Q1
OUTPUT
D3
C1
1F
R5
186k
5V
0.1F
5V
LT6003
+10mV/C
5V
R1
130k
R2
50k
R3
130k
ADJUST FOR 50% DUTY CYCLE AT 25°C
+
R7
16.9k
R8
84.5k
R6
45.3k
D1
1N458
R11
422
NDIV = 16
f = 10kHz
PWM OUTPUT FOR ISOLATED MEASUREMENT
+1% DUTY CYCLE CHANGE PER DEGREE C
–10°C TO 65°C RANGE WITH OPTO-ISOLATOR (DC: 15% TO 95%)
R9
365
0.1F
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