| 電壓 - 電源 | 5~42 |
|---|---|
| 焊接 | Lead-free (RoHS Compliant) |
| 狀態 | Prod |
| 調光 | Power Supply PWM |
| 電流 - 輸出/通道 (mA) | 10~150 |
| 外包裝 | Tape on Reel |
| 腳位/封裝 | SOT23-6 (3x1.5) |
| 通道數 | 1 |
| 文件 | Eval Board |
| 温規 | Automotive Grade (-40C to +125°C) |
| 類型 | 3171 |
| Sink Source | Sink |
| 產品類別 | LT = Lighting LED Driver |
| 產品系列 | 32 = Automotive Analog and Mixed Signal |
| 腳位/封裝 | ST = SOT23 |
| 焊料類型 | L = Lead-free (RoHS Compliant) |
| IC代碼 | 3171 = 3171 |
| Temperature Grade | A3 = Automotive temp. (-40°C to 125°C) |
| 包裝選項 | TR = Tape & Reel |
The IS32LT3170 and IS32LT3171 are adjustable linear current devices with excellent temperature stability. A single resistor is all that is required to set the operating current from 10mA to 150mA. The devices can operate from an input voltage from 2.5V to 42V with a minimal voltage headroom of 1V (typical). Designed with a low dropout voltage; the device can drive LED strings close to the supply voltage without switch capacitors or inductors. The IS32LT3170/71 simplifies designs by providing a stable current without the additional requirement of input or output capacitors, inductors, FETs or diodes. The complete constant current driver requires only a current set resistor and a small PCB area making designs both efficient and cost effective. The EN pin (1) of the IS32LT3170 can be tied to Vbat or BCM PWM signal for high side dimming. The EN Pin (1) of the IS32LT3171 can function as the PWM signal input used for low side dimming. As a current sink it is ideal for LED lighting applications or current limiter for power supplies. The device is provided in a lead (Pb) free, SOT23-6 package.