ADP8860: Charge Pump, 7-Channel Smart LED Driver with I2C Interface |
The ADP8860 combines a programmable backlight LED charge pump driver with automatic phototransistor control. This combination allows for significant power savings because it changes the current intensity in office and dark ambient light conditions. By performing this function automatically, it eliminates the need for a processor to monitor the phototransistor.
The light intensity thresholds ...続きを見る
The ADP8860 combines a programmable backlight LED charge pump driver with automatic phototransistor control. This combination allows for significant power savings because it changes the current intensity in office and dark ambient light conditions. By performing this function automatically, it eliminates the need for a processor to monitor the phototransistor.
The light intensity thresholds are fully programmable via the I2C® interface. A second phototransistor input, with dedicated comparators, improves the ambient light detection levels for various user operating conditions.
The ADP8860 allows as many as six LEDs to be independently driven up to 30 mA (maximum). A seventh LED can be driven to 60 mA (maximum). All LEDs are programmable for minimum/ maximum current and fade in/out times via the I2C interface. These LEDs can also be combined into groups to reduce the processor instructions during fade in/out. Driving this entire configuration is a two-capacitor charge pump with gains of 1×, 1.5×, and 2×. This setup is capable of driving a maximum IOUT of 240 mA from a supply of 2.5 V to 5.5 V. The device includes a variety of safety features including shortcircuit, overvoltage, and overtemperature protection. These features allow easy implementation of a safe and robust design. Additionally, input inrush currents are limited via an integrated soft start combined with controlled input to output isolation. The ADP8860 is available in two package types, either a compact 2 mm × 2.4 mm × 0.6 mm WLCSP (wafer level chip scale package) or a small LFCSP (lead frame chip scale package).
| Part# | Input Voltage Range (Vcc) | Vout Adjust Options | Iout (max) (mA) | Switching Frequency (MHz) | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|
| ADM8843 | 2.6 to 5.5V | - | 20 | 1.5 | 16-LFCSP | $0.50 |
| ADM8845 | 2.6 to 5.5V | - | 30 | - | 16-LFCSP | $0.71 |
| ADP1610 | 2.5 to 5.5 V | Vin to 12 V | 1.2 | 1.2 | 8-MSOP | $1.12 |
| ADP1611 | 2.5 to 5.5 V | Vin to 20 V | 1.2 | 1.2 | 8-MSOP | - |
| ADP1653 | 2.75 to 5.5 V | - | 500 | 1.2 | 16-LFCSP | $1.45 |
| ADP1655 | 2.75 to 5.5 V | - | 500 | 2 | 12-WLCSP | $0.95 |
| ADP5520 | 2.27 to 5.5 V | - | 30 | 1 | - | $1.66 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
| モデル | 製品状況 | パッケージ | ピン数 | 動作 温度範囲 |
価格* (1000 pcs.) |
Production** Availability |
RoHS互換 | PCN | サンプル・カート | 購入カート |
|---|---|---|---|---|---|---|---|---|---|---|
| ADP8860ACBZ-R7 | 製造中 | CHIPS W/SOLDER BUMPS/WLSCP | 20 | 工業用 | $1.36 | 11/27/2009 | Y 成分表 | - | カートに入れる | カートに入れる |
| ADP8860ACPZ-R7 | 製造中 | 20 | 工業用 | $1.70 | 01/01/2010 | Y 成分表 | - | カートに入れる | カートに入れる | |
| ADP8860DBCB-EVALZ | 発売前 | EVALUATION BOARDS | - | TBD | - | 11/27/2009 | Y | - | お問い合わせ | お問い合わせ |
| ADP8860DBCP-EVALZ | 発売前 | EVALUATION BOARDS | - | TBD | - | - | Y | - | お問い合わせ | お問い合わせ |
*価格は1個当たりの米ドルで、米国内における販売価格（FOB）で表示されておりますので、予算のためにのみご使用いただけます。 また、その価格は変更されることがあります。米国以外のお客様への価格は、輸送費、各国の税金、手数料、為替レートにより決定されます。価格・納期等の詳細情報については、弊社正規販売代理店または担当営業にお問い合わせください。なお、 評価用ボードおよび評価用キットの表示価格は1個構成としての価格です。
**製品購入よりもサンプル注文の方が早く届く場合があります。入手性については、カートの中の「Availability」の欄をご覧ください。
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