IS32LT3178-GRLA3-TR

狀態 Prod
Vdd(V) 5~40
調光 Digital PWM
通道數 1
文件 Eval Board
IOUT(mA) 10~200
腳位尺寸(mm) SOT23-6, SOP-8-EP
下沉源 Sink
腳位/封裝 GR = SOP
焊料類型 L = Lead-free (RoHS Compliant)
產品系列 32 = Automotive Analog and Mixed Signal
IC代碼 3178 = 3178
產品類別 LT = Lighting LED Driver
Temperature Grade A3 = Automotive temp. (-40°C to 125°C)
包裝選項 TR = Tape & Reel
外包裝 Tape on Reel

IS32LT3178-GRLA3-TR 特徵

  • Low-side current sink
  • - Adjustable from 10mA to 150mA (SOT23- 6)/200mA (SOP-8-EP) with external resistor selection
  • Wide input voltage range from
  • - 2.9V to 40V (IS32LT3178) - 5V to 40V (IS32LT3177) with a low dropout of typical 1.0V at 150mA
  • Up to 1kHz PWM input (IS32LT3178 only)
  • - 0.6%/K current roll off at high temp over 145°C for thermal protection - Output current limit - Thermal shutdown
  • Up to 0.77W (SOT23-6)/2.32W (SOP-8-EP) power dissipation in a small package
  • RoHS compliant (Pb-free) package
  • IS32LT3177/8-GRLA3-TR, SOP-8-EP (AEC- Q100 Qualified) IS32LT3177/8-STLA3-TR, SOT23-6 (AEC-Q100 qualification in progress)
  • Automotive and avionic lighting
  • Stop/tail light
  • Turn light

概觀

The IS32LT3177 and IS32LT3178 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 200mA. The devices can operate from an input voltage from 2.9V to 40V with a minimal voltage headroom of 1.0V (Typ.) at 150mA. Designed with a low dropout voltage; the device can drive LED strings close to the supply voltage without switch capacitors or inductors. The IS32LT3177/78 simplifies designs by providing a stable current without the additional requirement of 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 of the IS32LT3177 can be tied to VBAT or PSM (Power Supply Modulation) signal for high side dimming. The EN Pin of the IS32LT3178 can function as the PWM signal input used for MCU PWM 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 and SOP-8-EP packages.

 

相關IC编號

IC 編號 庫存數量 可用數量
IS32LT3178-STLA3-TR