TS3004ITD1033TP datasheet(10/11 Pages) TOUCHSTONE

部品番号	TS3004ITD1033TP

部品情報	A 1.55V to 5.25V, 1.9uA, 3.3us to 233s Silicon Timer

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メーカー	TOUCHSTONE [Touchstone Semiconductor Inc]

ホームページ	http://www.touchstonesemi.com

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TS3004

Page 10

TS3004DS r1p0

RTFDS

approximately 80µs. This is well above the required

minimum pulse width of 40µs.

Flashing Railroad Lights with the TS3004

With only three resistors and two off the shelf LEDs,

the TS3004 can be configured into a flashing railroad

lights

circuit.

With

the

input

divider

set

to

FDIV2:0 = 101 and RSET

= 3.24MΩ, the O T output

frequency is 1Hz. Refer to Figure 4. During the time

the output is HIGH, only the pull-down LED is on

while when the output is LOW, only the pull-up LED

is on. The supply voltage of the circuit is 5V.

Using the TS3004 and a Potentiometer to Dim an

LED

The TS3004 can be configured to dim an LED by

modulating the pulse width of the PWMOUT output.

With the input divider set to FDIV2:0 = 011 and

RSET=

2

MΩ, the

O T output frequency is

approximately 100Hz (or 10ms period). Refer to

Figure 5. The CPWM capacitor was calculated using

Equation 2 with a pulse width of 8.1ms. To reduce

the pulse width from 8.1ms and in turn, dim the LED,

a 1MΩ potentiometer is used. The potentiometer is

connected to the PWM_CNTRL pin in a voltage

divider configuration. The supply voltage of the circuit

is 5V.

.

Figure 5: TS3004 Configured to Dim an LED with a

Potentiometer

Figure 4: Flashing Railroad Lights with the

TS3004

同様の部品番号 - TS3004ITD1033TP

メーカー	部品番号	データシート	部品情報
Silicon Laboratories	TS3004ITD1033T	1Mb / 12P	Single Resistor Sets Output Frequency

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