TLC59731 Texas instruments

TLC59731

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TLC59731

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Описание

The TLC59731 device is an easy-to-use, 3-channel, 50-mA sink current LED driver. The single-wire, 600-kbps serial interface (EasySet) provides a solution for minimizing wiring cost. The LED driver provides 8-bit pulse width modulation (PWM) resolution and a simple gamma correction feature. The display repeat rate is achieved at 3.1 kHz (typical) with an integrated 6-MHz grayscale (GS) clock oscillator. The driver also provides unlimited cascading capability. Output sink current can be set by each external resistor connected to the OUTn terminal in series. The TLC59731 has an internal shunt regulator that can be used for higher VCC power-supply voltage applications.

Three Sink Current Channels
Current Capability:
- 50 mA per Channel
Grayscale (GS) Control With PWM:
- 8-Bit (256 Steps) With Simple Gamma
  Correction
Single-Wire Interface (EasySet™)
Power-Supply (VCC) Voltage Range:
- No Internal Shunt Regulator Mode:
  3 V to 5.5 V
- Internal Shunt Regulator Mode: 3 V to 6 V
OUT Terminals Maximum Voltage: Up to 21 V
Integrated Shunt Regulator
Data Transfer Maximum Rate:
- Bits per Second (bps): 600 kbps
Internal GS Clock Oscillator: 6 MHz (Typical)
Display Repeat Rate: 3.1 kHz (Typical)
Output Delay Switching to Prevent Inrush Current
Unlimited Device Cascading
Operating Temperature: –40°C to 85°C

Number of channels	3
LED current per channel (mA)	50
LED configuration	Series, Single
Program memory	No
Topology	Current Sink, Linear
Programmable ramp control	No
Vin (min) (V)	3
Vin (max) (V)	5.5
Iout (max) (A)	0.15
Features	Serial interface
Iq (typ) (mA)	5
Operating temperature range (°C)	-40 to 125
Rating	Catalog