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TMP47P201VPG , TLCS-47 Series
TMP47P242VN , CMOS 4-bit Microcontroller
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TLC5947DAPR-TLC5947RHBR
24-Channel, 12-Bit PWM LED Driver with Internal Oscillator
SIN
SCLK
XLAT
BLANK
SOUT
VCC
GND
TLC5947IC1
OUT0 OUT23 ¼
DATA
SCLK
XLAT
BLANK
IREF
VCC ¼
VLED VLED
VLED VLED ¼ ¼
SIN
SCLK
XLAT
BLANK
SOUT
VCC
GND
TLC5947ICn
OUT0 OUT23
VCC VCC= 3.0Vto 5.5V
3 Description• Constant-Current Accuracy: The TLC5947isa 24-channel, constant-current sink– Channel-to-Channel= ±2% (Typical) LED driver. Each channelis individually adjustable– Device-to-Device= ±2% (Typical) with 4096 pulse-width modulated (PWM) steps. PWM
control is repeated automatically with the• CMOS Logic Level I/O
programmed grayscale (GS) data. GS data are• 30-MHz Data Transfer Rate (Standalone) written viaa serial interface port. The current valueof• 15-MHz Data Transfer Rate (Cascaded Devices, all24 channelsis setbya single external resistor.SCLK Duty= 50%) The TLC5947 hasa thermal shutdown (TSD) function• Shift Out Data Changes With Falling Edgeto that turns off all output drivers during an over-Avoid Data Shift Errors temperature condition. All of the output drivers Auto Display Repeat automatically restart when the temperature returnsto
normal conditions.• 4-MHz Internal Oscillator Thermal Shutdown (TSD):
Device Information(1) Automatic Shutdownat OverTemperatureConditions– Restart Under Normal Temperature Noise Reduction: (1) Forall available packages, see the orderable addendumat– 4-Channel Grouped Delayto Prevent Inrush the endofthe datasheet.
Current Operating Temperature: –40°Cto 85°C
Application Circuit
