LTC6992HS6-1#TRMPBF Linear Technology, LTC6992HS6-1#TRMPBF Datasheet - Page 13

• Manufacturer Part Number: LTC6992HS6-1#TRMPBF
• Description: IC TIMERBLOX VOLT PWM TSOT23-6
• Manufacturer: Linear Technology

Specifications of LTC6992HS6-1#TRMPBF

• Frequency: *
• Voltage - Supply: *
• Current - Supply: 365µA
• Operating Temperature: *
• Package / Case: TSOT-23-6, TSOT-6
• Count: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LTC6992HS6-1#TRMPBFTR

PIN FUNCTIONS
MOD (Pin 4/Pin 1): Pulse-Width Modulation Input. The
voltage on the MOD pin controls the output duty cycle. The
linear control range is between 0.1 • V
(approximately 100mV to 900mV). Beyond those limits, the
output will either clamp at 5% or 95%, or stop oscillating
(0% or 100% duty cycle), depending on the version.
BLOCK DIAGRAM
R1
R2
DIV
4
CONVERTER
HALT OSCILLATOR
4-BIT A/D
V
IF I
+
5
SET
< 500nA
f
OSC
MASTER OSCILLATOR
= 1MHz • 50kΩ •
DIGITAL
FILTER
I
SET
(DCB/S6)
3
SET
R
SET
(S6 Package Pin Numbers Shown)
V
SET
V
I
SET
SET
= 1V
SET
MCLK
+
–
and 0.9 • V
÷1, 4, 16, 64, 256, 1024, 4096, 16384
+
–
2 2
GND
PROGRAMMABLE DIVIDER
V
1V
REF
DISABLE OUTPUT
SET
UNTIL SETTLED
POR
GND (Pin 5/Pin 2): Ground. Tie to a low inductance ground
plane for best performance.
OUT (Pin 6/Pin 6): Oscillator Output. The OUT pin swings
from GND to V
30Ω. The duty cycle is determined by the voltage on the
MOD pin. When driving an LED or other low-impedance
load a series output resistor should be used to limit the
source/sink current to 20mA.
VOLTAGE LIMITER
1
LTC6992-1/LTC6992-2/
MOD
V
V
MOD(LIM)
MOD
LTC6992-3/LTC6992-4
+
DUTY CYCLE =
with an output resistance of approximately
PULSE WIDTH MODULATOR
POL
V
MOD(LIM)
0.8•V
POLARITY
OUTPUT
– 0.1•V
SET
SET
6992 BD
6
OUT
D =
t
t
OFF
ON
t
13
ON
t
OUT
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