Specifications
| Type | Description |
|---|---|
| Part Number | TLC59282 |
| Manufacturer | Texas Instruments |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | SSOP-24/QSOP-24 DBQ; QFN-24 RGE |
| Inferred Category | LED |
| Component Type | Power_IC |
| Number of output channels | 16 channels; constant-current sink outputs OUT0 to OUT15 with on/off control |
| Output current capability | 35 mA when VCC <= 3.6 V |
| Output current capability | 45 mA when VCC > 3.6 V |
| LED power supply voltage | Up to 17 V at OUT0 to OUT15 LED supply/output voltage capability |
| Supply voltage | 3 V to 5.5 V VCC operating range |
| Constant-current accuracy channel-to-channel | ±0.6% typ, ±2% max at OUT0 to OUT15 |
| Constant-current accuracy device-to-device | ±1% typ, ±3% max at OUT0 to OUT15 |
| Low saturation voltage | 0.31 V typ at IOUT=20 mA, TA=25°C, one channel on |
| Data transfer rate | 35 MHz serial interface |
| BLANK pulse width | 30 ns minimum BLANK pulse width feature |
| Grouped output delay | 4-channel grouped delay for noise reduction function |
| Operating temperature | -40°C to +85°C free-air operating temperature |
| Absolute maximum supply voltage | -0.3 V to +6 V at VCC over operating free-air temperature range |
| Absolute maximum output current | 50 mA DC output current at OUT0 to OUT15 |
| Absolute maximum input voltage range | -0.3 V to VCC + 0.3 V at SIN, SCLK, LAT, BLANK, IREF |
| Absolute maximum SOUT voltage range | -0.3 V to VCC + 0.3 V at SOUT output |
| Absolute maximum OUTn voltage range | -0.3 V to +18 V at OUT0 to OUT15 |
| Maximum operating junction temperature | +150°C TJ(max) |
| Storage temperature range | -55°C to +150°C TSTG |
| ESD rating HBM | 4000 V human body model |
| ESD rating CDM | 1000 V charged device model |
| Junction-to-ambient thermal resistance | 73.2°C/W for DBQ package, 24 pins |
| Junction-to-ambient thermal resistance | 46.8°C/W for RGE package, 24 pins |
| Junction-to-case top thermal resistance | 44.6°C/W for DBQ package, 24 pins |
| Junction-to-case top thermal resistance | 48.6°C/W for RGE package, 24 pins |
| Junction-to-board thermal resistance | 38.9°C/W for DBQ package, 24 pins |
| Junction-to-board thermal resistance | 23.0°C/W for RGE package, 24 pins |
| Recommended supply voltage | 3 V min, 5.5 V max at VCC, TA=-40°C to +85°C |
| Recommended output voltage | 17 V max applied to OUT0 to OUT15 |
| High-level input voltage | 0.7 × VCC min, VCC max for VIH |
| Low-level input voltage | GND min, 0.3 × VCC max for VIL |
| High-level output current | -1 mA at SOUT |
| Low-level output current | 1 mA at SOUT |
| Recommended constant output sink current | 2 mA min, 35 mA max at OUT0 to OUT15, 3 V <= VCC < 3.6 V |
| Recommended constant output sink current | 2 mA min, 45 mA max at OUT0 to OUT15, 3.6 V <= VCC < 5.5 V |
| Operating free-air temperature range | -40°C min, +85°C max TA |
| Operating junction temperature range | -40°C min, +125°C max TJ |
| Data shift clock frequency | 35 MHz max at SCLK, VCC=3 V to 5.5 V |
| SCLK high pulse duration | 10 ns min, TWH0, SCLK |
| SCLK low pulse duration | 10 ns min, TWL0, SCLK |
| LAT high pulse duration | 20 ns min, TWH1, LAT |
| BLANK high pulse duration | 60 ns min, TWH2, BLANK |
| BLANK low pulse duration | 30 ns min, TWL2, BLANK |
| SIN setup time | 4 ns min, TSU0, SIN to SCLK rising edge |
| LAT setup time | 10 ns min, TSU1, LAT falling edge to SCLK rising edge |
| SIN hold time | 4 ns min, TH0, SIN to SCLK rising edge |
| LAT hold time | 10 ns min, TH1, LAT falling edge to SCLK rising edge |
| SOUT high-level output voltage | VCC - 0.4 V min, VCC max for VOH, IOH=-1 mA at SOUT |
| SOUT low-level output voltage | 0.4 V max for VOL, IOL=1 mA at SOUT |
| Input current | -1 µA min, 1 µA max, VIN=VCC or GND at SIN and SCLK |
| Supply current ICC0 | 0.1 mA typ, 1 mA max; RIREF=open, SIN/SCLK/LAT=low, BLANK=high, VOUTn=1 V |
| Supply current ICC1 | 4.5 mA typ, 6 mA max; RIREF=3 kΩ, IOUT=16.8 mA target, SIN/SCLK/LAT=low, BLANK=high, VOUTn=1 V |
| Supply current ICC2 | 7 mA typ, 15 mA max; all OUTn=ON, SIN/SCLK/LAT/BLANK=low, VOUTn=1 V, RIREF=3 kΩ |
| Supply current ICC3 | 16 mA typ, 34 mA max; all OUTn=ON, SIN/SCLK/LAT/BLANK=low, VOUTn=1 V, RIREF=1.5 kΩ, IOUT=33.6 mA target |
| Constant output current | 32.1 mA min, 33.7 mA typ, 35.3 mA max; all OUT0 to OUT15 ON, VOUTn=VOUTfix=1 V, RIREF=1.5 kΩ, TA=25°C |
| Output leakage current | 0.1 µA max; OUTn=OFF at OUT0 to OUT15, RIREF=1.5 kΩ, VOUTn=VOUTfix=17 V, BLANK=high |
| Constant-current error channel-to-channel | ±0.6% typ, ±2% max; all OUT0 to OUT15 ON, VOUTn=VOUTfix=1 V, RIREF=1.5 kΩ |
| Constant-current error device-to-device | ±1% typ, ±3% max; all OUT0 to OUT15 ON, VOUTn=VOUTfix=1 V, RIREF=1.5 kΩ, TA=25°C |
| Line regulation | ±0.5%/V typ, ±1%/V max; all OUT0 to OUT15 ON, VOUTn=VOUTfix=1 V, VCC=3 V to 5.5 V, RIREF=1.5 kΩ |
| Load regulation | ±1%/V typ, ±3%/V max; all OUTn=ON, VOUTn=1 V to 3 V, VOUTfix=1 V, RIREF=1.5 kΩ |
| IREF reference voltage output | 1.18 V min, 1.205 V typ, 1.23 V max; RIREF=1.5 kΩ, TA=25°C |
| BLANK pull-up resistor | 250 kΩ min, 500 kΩ typ, 750 kΩ max at BLANK input |
| LAT pull-down resistor | 250 kΩ min, 500 kΩ typ, 750 kΩ max at LAT input |
| Ideal output current formula | IOUT(IDEAL) = 41.9 × 1.205 / RIREF, RIREF in ohms |
| SOUT rise time | 5 ns typ, 12 ns max; VCC=3 V to 5.5 V, TA=-40°C to +85°C, CL=15 pF, RL=130 Ω, RIREF=1.5 kΩ, VLED=5.5 V |
| OUTn rise time | 10 ns typ, 30 ns max; VCC=3 V to 5.5 V, TA=-40°C to +85°C, CL=15 pF, RL=130 Ω, RIREF=1.5 kΩ, VLED=5.5 V |
| SOUT fall time | 5 ns typ, 12 ns max; VCC=3 V to 5.5 V, TA=-40°C to +85°C, CL=15 pF, RL=130 Ω, RIREF=1.5 kΩ, VLED=5.5 V |
| OUTn fall time | 10 ns typ, 30 ns max; VCC=3 V to 5.5 V, TA=-40°C to +85°C, CL=15 pF, RL=130 Ω, RIREF=1.5 kΩ, VLED=5.5 V |
| SCLK to SOUT propagation delay | 8 ns typ, 20 ns max from SCLK rising edge to SOUT transition |
| OUT0/OUT7/OUT8/OUT15 propagation delay | 18 ns typ, 36 ns max from LAT rising edge or BLANK transition to output on/off |
| OUT1/OUT6/OUT9/OUT14 propagation delay | 38 ns typ, 69 ns max from LAT rising edge or BLANK transition to output on/off |
| OUT2/OUT5/OUT10/OUT13 propagation delay | 58 ns typ, 102 ns max from LAT rising edge or BLANK transition to output on/off |
| OUT3/OUT4/OUT11/OUT12 propagation delay | 78 ns typ, 135 ns max from LAT rising edge or BLANK transition to output on/off |
| Output on-time error | -15 ns min, 15 ns max; on/off latch data all 1, 30 ns BLANK low-level one-shot pulse input |
| Shift register width | 16 bits; 1 bit × 16 channels, serial data buffer |
| SIN pin function | Serial data input; Schmitt buffer input; high SIN writes data 1 into LSB of 16-bit shift register at SCLK rising edge |
| SCLK pin function | Serial data shift clock; Schmitt buffer input; shifts all 16-bit shift register data toward MSB by 1 bit on SCLK synchronization |
| LAT pin function | Level-triggered latch; Schmitt buffer input; latch transparent while LAT high; data held when LAT low; internal 500 kΩ typ pull-down |
| BLANK pin function | All-output blanking; Schmitt buffer input; BLANK high forces OUT0 to OUT15 off; BLANK low enables latch-controlled outputs; internal 500 kΩ typ pull-up |
| IREF pin function | Constant-current setting input/output; external resistor between IREF and GND sets OUT0 to OUT15 sink current |
| SOUT pin function | Serial data output; connected to MSB of 16-bit shift register; SOUT data changes at rising edge of SCLK |
| Output paralleling capability | OUT0 to OUT15 constant-current outputs may be tied together to increase current |
| Thermal pad connection | Connect thermal pad to GND via PCB pattern for QFN-24 RGE; thermal pad is not internally connected to GND |
| Datasheet Status | request_only |
Product Overview
The TLC59282 is a Texas Instruments 16-channel constant-current LED driver with OUT0 through OUT15 configured as sink outputs with on/off control. It operates from a 3 V to 5.5 V VCC supply and supports LED output voltage up to 17 V. Output current capability is 35 mA when VCC <= 3.6 V and 45 mA when VCC > 3.6 V, with recommended sink-current ranges of 2 mA to 35 mA or 2 mA to 45 mA depending on VCC range.
The device uses a 16-bit serial data path with SIN, SCLK, LAT, BLANK, and SOUT pins. The serial interface supports a 35 MHz maximum data shift clock, SOUT is connected to the MSB of the shift register, LAT provides level-triggered latching, and BLANK forces all outputs off when high. The IREF pin uses an external resistor to set the OUT0 to OUT15 sink current.
Package options include SSOP-24/QSOP-24 DBQ and QFN-24 RGE. For the QFN-24 RGE package, the thermal pad should be connected to GND through the PCB pattern because it is not internally connected to GND. Outputs may also be tied together to increase current.
Key Features
- 16 constant-current sink outputs with individual on/off control
- 35 mA output current capability when VCC <= 3.6 V
- 45 mA output current capability when VCC > 3.6 V
- OUT0 to OUT15 support LED voltage up to 17 V
- 3 V to 5.5 V VCC operating supply range
- 35 MHz maximum serial data shift clock frequency
- 16-bit shift register for one bit per output channel
- BLANK input forces all OUT0 to OUT15 outputs off
- LAT input provides level-triggered output data latching
- IREF resistor sets constant-current sink output level
- 4-channel grouped output delay supports noise reduction
- Outputs can be tied together to increase current
Typical Applications
- 16-channel LED on/off control
- Serially driven LED arrays
- LED banks up to 17 V
- Cascaded serial LED driver stages
- Blanking-controlled LED outputs
- Higher-current tied-output LED channels
- Constant-current sink LED systems
Procurement Notes
When requesting a quote for TLC59282, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For LED and optoelectronic sourcing, brightness bin, wavelength or color temperature bin, forward voltage range, viewing angle, moisture sensitivity level and soldering process limits may affect final selection, availability and lead time.
FAQ
How many LED output channels does TLC59282 provide?
TLC59282 provides 16 constant-current sink outputs, OUT0 through OUT15. Each output supports on/off control through the internal latch and serial data path, with one shift-register bit assigned to each channel.
What supply and output voltage ranges are specified?
The VCC operating range is 3 V to 5.5 V. The recommended maximum voltage applied to OUT0 through OUT15 is 17 V, while the absolute maximum OUTn voltage range is -0.3 V to +18 V.
How is the constant output current configured?
The IREF pin is the constant-current setting input/output. An external resistor from IREF to GND sets the OUT0 to OUT15 sink current, with the ideal formula specified as IOUT(IDEAL) = 41.9 × 1.205 / RIREF.
What package and thermal notes apply to TLC59282?
Package options are SSOP-24/QSOP-24 DBQ and QFN-24 RGE. For the QFN-24 RGE package, the thermal pad should be connected to GND through the PCB pattern because the pad is not internally connected to GND.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.