STP16CP05TTR - 16-Ch 100mA LED Sink Driver | STMicroelectronics
部品番号: STP16CP05TTR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.94 | $1.94 |
| 10 | $1.74 | $17.40 |
| 100 | $1.45 | $145.00 |
| 500 | $1.22 | $610.00 |
| 1,000 | $1.05 | $1,050.00 |
| 2,500 | $0.92 | $2,300.00 |
STP16CP05TTR 概要
A constant-current LED driver is a specialized display driver IC that delivers a precisely regulated DC current to each LED in an array, eliminating the brightness mismatch that occurs when LEDs are driven by simple ballast resistors. The STP16CP05TTR belongs to the broader family of LED display drivers, which sit within the power management and display driver IC category of semiconductors. By sinking a programmable constant current from each LED cathode, the part shifts the thermal and aging variation from individual LEDs onto a single, well-controlled silicon reference, ensuring consistent luminance across the entire panel.
Key features include a 30 MHz serial clock interface, 16 equal-current output channels, an external resistor-programmable output current up to 100 mA per channel, a 20 V output voltage rating, and a thermal shutdown protection circuit. The shift register and storage register architecture allows simultaneous update of all 16 outputs, eliminating the visual artifacts caused by sequential refresh. An output enable pin (active-low) supports blanking and PWM dimming, while the serial data path is cascadable to drive larger LED arrays by daisy-chaining multiple STP16CP05 devices.
The internal architecture uses matched bipolar current mirrors with a single external reference resistor (REXT) setting the global current. All 16 outputs share the same reference, so channel-to-channel matching typically tracks within +/-1 percent at the same output voltage. The output stage sustains up to 20 V per channel, which allows driving long strings of series LEDs from a single high-voltage rail while the logic section operates from a low-voltage MCU-compatible supply.
Typical applications include indoor LED video panels, full-color RGB dot-matrix displays, message boards, signage backlights, and decorative lighting controllers. The cascadable serial interface lets designers expand channel count without additional GPIO, and the wide 5 mA to 100 mA programmable range covers both indicator LEDs and high-brightness panel pixels from a single BOM.
When designing with the STP16CP05TTR, place the REXT resistor close to the REXT pin and use a 0.1 uF decoupling capacitor on VDD. For PWM dimming, drive the OE pin from a timer channel rather than bit-banging, and ensure the LED supply common-anode rail is referenced to the same ground as the logic supply to avoid logic-level errors during high-current transients.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for sourcing and implementing the STP16CP05TTR.
ドロップイン代替品: STP16CP05TTR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
STP16CP05TTR-Q1
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STP16CPC05TTR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STP16CP05MTR
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STP16CP05TTR 最大定格＆電気的特性
| 出力数 | 16 |
| Output Current per Channel | 5 mA to 100 mA (programmable via REXT) |
| Output Voltage Rating | 20 V (max) |
| Logic Supply Voltage (VDD) | 3.0 V to 5.5 V |
| Clock Frequency | 30 MHz (max) |
| インターフェース | Serial-in, parallel-out shift register (cascadable) |
| トポロジー | Constant-current sink |
| Output Enable (OE) | Active-low blanking / PWM dimming |
| 熱シャットダウン | Yes (built-in) |
| 動作温度 | -40 C to +125 C |
| パッケージ | TSSOP-24 (Tape & Reel) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
STP16CP05TTR ピン構成
| ピン 1 | SDO — Serial data output (cascade to next STP16CP05) |
| ピン 2 | SDI — Serial data input |
| ピン 3 | CLK — Shift register clock input |
| ピン 4 | LE — Latch enable (transfers shift register to storage register) |
| ピン 5 | OUT7 — Current sink output 7 |
| ピン 6 | OUT8 — Current sink output 8 |
| ピン 7 | OUT9 — Current sink output 9 |
| ピン 8 | OUT10 — Current sink output 10 |
| ピン 9 | OUT11 — Current sink output 11 |
| ピン 10 | OUT12 — Current sink output 12 |
| ピン 11 | OUT13 — Current sink output 13 |
| ピン 12 | OUT14 — Current sink output 14 |
| ピン 13 | OE — Output enable, active-low (blanking/PWM) |
| ピン 14 | OUT15 — Current sink output 15 |
| ピン 15 | OUT0 — Current sink output 0 |
| ピン 16 | OUT1 — Current sink output 1 |
| ピン 17 | OUT2 — Current sink output 2 |
| ピン 18 | OUT3 — Current sink output 3 |
| ピン 19 | OUT4 — Current sink output 4 |
| ピン 20 | OUT5 — Current sink output 5 |
| ピン 21 | OUT6 — Current sink output 6 |
| ピン 22 | REXT — External resistor to program output current |
| ピン 23 | GND — Ground |
| ピン 24 | VDD — Logic supply (3.0 V to 5.5 V) |
主な用途
STP16CP05TTR の用途: 6 件s: Indoor LED Video Panels, RGB Dot-Matrix Message Boards, Architectural and Decorative Lighting, Status and Indicator LED Arrays, Automotive Interior Lighting, LED Backlight Drivers for Small LCDs.
Indoor LED Video Panels
The STP16CP05TTR drives the row or column current for indoor LED video walls, where 16 channels per IC match the 16-pixel pitch of common P10 and P5 panels. Its 5 mA to 100 mA programmable range covers both standard-brightness indicator pixels and high-luminance SMD LEDs used in rental staging. The 30 MHz clock enables 1000+ Hz refresh per row, essential for flicker-free video at typical scan rates. Cascading multiple STP16CP05TTR devices via SDO expands channel count for higher-resolution panels without adding MCU GPIO.
おすすめ
RGB Dot-Matrix Message Boards
The STP16CP05TTR is well suited for full-color RGB dot-matrix scrolling signs where each color plane uses one STP16CP05TTR per 16-pixel row. The cascadable serial interface lets a single SPI port on the host MCU drive all three color planes across the entire display. The 20 V output rating tolerates long LED strings from a 5-V or 12-V supply rail. The active-low OE pin enables row multiplexing without flicker artifacts.
おすすめ
Architectural and Decorative Lighting
Architectural LED strips, channel-letter signs, and decorative lighting controllers use the STP16CP05TTR to sink current from long parallel LED chains. The programmable 5 mA to 100 mA range lets designers tune brightness to match ambient lighting without changing hardware. The TSSOP-24 package is small enough to fit inside channel-letter housings. Thermal shutdown protects the IC when LEDs are mis-wired or shorted the output stage.
おすすめ
Status and Indicator LED Arrays
Front-panel equipment, industrial control HMIs, and instrumentation use the STP16CP05TTR to drive 16-segment status LED arrays with consistent brightness. The single REXT resistor simplifies calibration: one resistor value controls all 16 outputs, eliminating per-channel trim. The 3 V to 5.5 V logic supply interfaces cleanly to modern MCUs without level shifters. The wide -40 C to +125 C operating range supports industrial and outdoor enclosures.
おすすめ
Automotive Interior Lighting
Automotive ambient interior lighting, instrument-cluster backlights, and indicator strips use the STP16CP05TTR-Q1 automotive-qualified variant for AEC-Q100 compliance. The 16 channels drive RGB-ambient strips or zone backlights with synchronized PWM dimming via the OE pin. The 20 V output rating handles 12 V automotive transients. The TSSOP-24 package footprint supports compact PCB layouts behind instrument clusters and door panels.
おすすめ
LED Backlight Drivers for Small LCDs
Small LCD panels, point-of-sale terminals, and industrial HMIs backlight via the STP16CP05TTR driving parallel LED strings. The constant-current sink topology ensures uniform luminance across the backlight area, eliminating hot-spots common with ballast-resistor designs. PWM dimming via the OE pin allows dynamic brightness control in response to ambient light sensors. The TSSOP-24 small footprint fits behind the LCD bezel.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STP16CP05TTR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STP16CP05TTR-Q1 | STP16CPC05TTR | STP16CP05MTR |
|---|---|---|---|---|
| Package | TSSOP-24 | TSSOP-24 - same | TSSOP-24 - same | TSSOP-24 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Number of Outputs | 16 | 16 | 16 | 16 |
| Output Current Range | 5 mA to 100 mA | 5 mA to 100 mA | 5 mA to 100 mA | 5 mA to 100 mA |
| Logic Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Output Voltage Rating | 20 V | 20 V | 20 V | 20 V |
| Maximum Clock Frequency | 30 MHz | 30 MHz | 30 MHz | 30 MHz |
| Automotive Qualified (AEC-Q100) | No | Yes | No | No |
| Lifecycle Status | Active | Active | Obsolete | Active |
主な差別化要因
- Cascadable 30 MHz serial interface （vs STP16CPC05TTR)
- AEC-Q100 automotive variant available （vs STP16CPC05TTR)
- 20 V output rating for long LED strings （vs Generic 8-channel LED sink drivers)
設計ノート
Place the REXT resistor within 5 mm of the REXT pin (pin 22) and route its ground end directly to the TSSOP GND pin (pin 23) with a short, low-impedance trace. Place a 0.1 uF ceramic decoupling capacitor on VDD (pin 24) as close to the IC as possible, with an additional 10 uF bulk capacitor on the LED supply rail. Keep the SDI, CLK, and LE traces short and routed away from the OUTx traces to avoid coupling switching noise into the logic inputs.
Estimated: at maximum operating conditions (100 mA per channel x 16 channels = 1.6 A total, with 5 V across the output stage), worst-case power dissipation approaches 8 W and requires thermal relief copper pours. In typical LED panel use (20 mA per channel x 16 = 320 mA total), dissipation is under 1 W and the TSSOP-24 package alone is sufficient. Use thermal vias under the exposed pad if available, or spread copper on both PCB layers under the output pins.
Do not leave the OE pin floating; tie it to GND through a pull-down resistor or drive it from a MCU PWM channel to enable blanking. Leaving OE floating causes random output enable/disable events visible as LED flicker. Do not exceed 20 V on any OUTx pin, even briefly, as the output transistors are not rated above this voltage. When cascading, ensure the SDO of the upstream device is properly level-shifted if VDD differs between cascaded ICs.
Route the LED supply (anode side) and the logic VDD from separate regulators or net segments to prevent high di/dt switching noise from corrupting the logic reference. When using PWM dimming via OE, ensure the OE signal path is short and free of crosstalk from the high-current OUTx nets. For cascaded chains, daisy-chain SDO to SDI sequentially rather than star-routing, to maintain timing margin at 30 MHz clock.
コンプライアンス情報
RoHS compliant per STMicroelectronics product page. AEC-Q100 not applicable for standard STP16CP05TTR; select STP16CP05TTR-Q1 for automotive. REACH status extracted from distributor listing.
