Datasheet

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
34
69921234fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
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www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2010
LT 0112 REV C • PRINTED IN USA
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LTC1799 1MHz to 33MHz ThinSOT Silicon Oscillator Wide Frequency Range
LTC6900 1MHz to 20MHz ThinSOT Silicon Oscillator Low Power, Wide Frequency Range
LTC6906/LTC6907 10kHz to 1MHz or 40kHz ThinSOT Silicon Oscillator Micropower, I
SUPPLY
= 35µA at 400kHz
LTC6930 Fixed Frequency Oscillator, 32.768kHz to 8.192MHz 0.09% Accuracy, 110µs Start-Up Time, 105µA at 32kHz
LTC6990 TimerBlox, Voltage Controlled Oscillator Frequency from 488Hz to 1MHz, No Caps, 2.2% Accurate
LTC6991 TimerBlox, Very Low Frequency Clock with Reset Cycle Time from 2ms to 9.5 Hours, No Caps, 2.2% Accurate
LTC6993 TimerBlox, Monostable Pulse Generator Resistor Set Pulse Width from 1µs to 34sec, No Caps, 3% Accurate
LTC6994 TimerBlox, Delay Block/Debouncer Resistor Set Delay from 1µs to 34sec, No Caps Required, 3% Accurate
PWM Controller for LED Driver
6992 TA15
LTC6992-1
MOD
GND
SET
OUT
V
+
DIV
1M
681k102k
V
IN
8V TO 16V
ANALOG PWM
DUTY CYCLE
CONTROL
(0V TO 1V)
5V
LT3517
PWM
TGEN
V
REF
CTRL
SYNC
FB
ISP
ISN
TG
SHDN V
IN
SW
V
C
GNDSSR
T
C1
2.2µF
0.1µF
R1
3.92M
R2
124k
300mA
C1
0.22µF
C2
4.7µF
C3
0.1µF
C4
0.1µF
R
T
6.04k
2MHz
D1
L1
6.8µH
LT3517
R
SENSE
330mΩ
C1: KEMET C0806C225K4RAC
C2: KEMET C1206C475K3RAC
C3, C4: MURATA GRM21BR71H104KA01B
C5: MURATA GRM21BR71H224KA01B
D1: DIODE DFLS160
L1: TOKO B992AS-6R8N
LEDS: LUXEON I (WHITE)
M1: ZETEX ZXMP6A13FTA