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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
ビデオ
Watch the ALED1262ZT video, an automotive-grade 12-Channel LED Driver for advanced rear lighting solutions
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製品スペック (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 09 Oct 2020 |
09 Oct 2020
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アプリケーションノート (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 03 Dec 2014 |
03 Dec 2014
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パンフレット (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 23 Mar 2020 |
23 Mar 2020
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CAD/EDA Symbols, Footprints and Models
品質 & 信頼性
| 製品型番 | Marketing Status | 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 |
量産中
|
QSOP24 | インダストリアル | Ecopack2 | |
| LED1642GWQTR |
量産中
|
QFN-24L | インダストリアル | Ecopack2 | |
| LED1642GWTTR |
量産中
|
TSSOP 24 | インダストリアル | Ecopack2 | |
| LED1642GWXTTR |
量産中
|
HTSSOP24 | インダストリアル | Ecopack2 |
|
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
サンプル & 購入
| 製品型番 | 販売代理店からオーダー | STからオーダー | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度（℃） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||
| LED1642GWTTR | 4 distributors | Free Sample Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | TSSOP 24 | -40 | 125 | PHILIPPINES | 0.716 / 1k | |
| LED1642GWXTTR | 6 distributors | Free Sample Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | HTSSOP24 | -40 | 125 | PHILIPPINES | 0.775 / 1k | |
| LED1642GWPTR | 3 distributors | Free Sample Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | QSOP24 | -40 | 125 | CHINA | 0.716 / 1k | |
| LED1642GWQTR | 5 distributors | Free Sample Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | QFN-24L | -40 | 125 | CHINA | 0.775 / 1k | |
（*）概算用の希望小売単価（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。
