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The LED1642GW is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The LED1642GW guarantees 20 V output driving capability allowing the user to connect several LEDs in series. In the output stage, sixteen regulated current sources provide from 3 mA to 40 mA constant current to drive the LEDs. The current is programmed through an external resistor and can be adjusted by a 7-bit current gain register in two subranges. The brightness can be adjusted separately for each channel through 12/16-bit grayscale control.
Programmable turn-on and turn-off time (four different values available) improves the low noise generation performance of the system.
Open/short error detection mode is available in the LED1642GW. The auto power-shutdown and auto power-on features (selectable) allow the device to save power without external intervention.
Thermal management includes an overtemperature data alert and output thermal shutdown (170 °C). The high clock frequency is up to 30 MHz and it makes the device suitable for high data rate transmission. A selectable gradual output delay reduces the inrush current, whereas the selectable SDO synchronization feature works when the device is used in daisy-chain configuration. The supply voltage range is between 3 V and 5.5 V.主な特徴
- 16 constant current output channels
- Output current: from 3 mA to 40 mA
- Current programmable through external resistor
- 7-bit global current gain adjustment in two ranges
- 12/16-bit PWM grayscale brightness control
- Programmable output turn-on/off time
- Error detection mode (both open and shorted-LED)
- Programmable shorted-LED detection thresholds
- Auto power saving/auto-wakeup
- Selectable SDO synchronization on the CLK falling edge
- Gradual output delay (selectable)
- Supply voltage: 3 V to 5.5 V
- Thermal shutdown and overtemperature alert
- 30 MHz 4-wires interface
- 20 V current generator rated voltage
サンプル & 購入
| 製品型番 | 製品ステータス | 数量 | 概算価格（USS） | パッケージ | 梱包タイプ | 温度（℃） | ECCN (US) | Country of Origin | 詳細 | 販売代理店からオーダー | STからオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小値 | max | |||||||||||
| LED1642GWTTR |
アクティブ
|
10000 | 0.716 | TSSOP 24 | Tape And Reel | -40 | 125 | EAR99 | MALAYSIA | 在庫チェック | サンプル入手 | |
| LED1642GWXTTR |
アクティブ
|
10000 | 0.775 | HTSSOP24 | Tape And Reel | -40 | 125 | EAR99 | MALAYSIA | 在庫チェック | サンプル入手 | |
| LED1642GWPTR |
アクティブ
|
10000 | 0.716 | QSOP24 | Tape And Reel | -40 | 125 | EAR99 | CHINA | 在庫チェック | サンプル入手 | |
| LED1642GWQTR |
アクティブ
|
10000 | 0.775 | QFN-24L | Tape And Reel | -40 | 125 | EAR99 | CHINA | 在庫チェック | サンプル入手 | |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
ビデオ
Watch the ALED1262ZT video, an automotive-grade 12-Channel LED Driver for advanced rear lighting solutions
開発環境
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写真 品名 製造元 Description 
X-NUCLEO-LED16A1 ST 16 channel LED driver expansion board based on LED1642GW for STM32 Nucleo 製品型番16 channel LED driver expansion board based on LED1642GW for STM32 Nucleo
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評価ツール
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写真 品名 製造元 Description 
STEVAL-ILL061V1 -- High brightness RGB LED array driver with local dimming and diagnostics based on LED1642GW and STM32 製品型番High brightness RGB LED array driver with local dimming and diagnostics based on LED1642GW and STM32
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| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| LED1642GWPTR |
アクティブ
|
QSOP24 | インダストリアル | Ecopack2 (**) |
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| LED1642GWQTR |
アクティブ
|
QFN-24L | インダストリアル | Ecopack2 | |
| LED1642GWTTR |
アクティブ
|
TSSOP 24 | インダストリアル | Ecopack2 | |
| LED1642GWXTTR |
アクティブ
|
HTSSOP24 | インダストリアル | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
