通道數 2
電壓 - 電源 6~45
電流 - 輸出/通道 (mA) 20~200
Sink Source Source
調光 Fade ON/OFF
腳位/封裝 eSOP-8
文件 MAP_EB, CAP_EB, IR_EB
狀態 Prod
產品系列 32 = 汽車模擬和混合信號
產品類別 LT = 照明LED驅動器
IC代碼 3120
焊接 L = 無鉛
温規 A3 = 車規 (-40C to +125°C)
外包裝 卷轴包
相關IC编號

IS32LT3120-GRLA3-TR 特徵

  • Dual output channels can source up to 200mA
  • each Independent on/off control for each channel
  • -Inputs are debounced
  • Programmable fade in, fade out via external resistor
  • - Pull down resistor value sets fade speed - Gamma corrected fade in/out algorithm
  • Fault Protection:
  • - OUTx pin shorted to GND - ISET pin short to GND - Over temperature
  • SOP-8-EP package
  • Automotive Grade - AEC-Q100
  • Operating temperature range from -40°C ~ +125°C

概觀

The IS32LT3120 is a linear programmable current regulator consisting of 2 output channels capable of up to 200mA each. Each channel features an ON/OFF input pin to toggle the channel between the OFF condition and the source condition. A single external resistor programs the current level for both of the channels, while a separate, single resistor programs the fade in and fade out rate for both channels. The device integrates a 63 steps fade in and fade out algorithm (Gamma correction) which causes the output LED current to gradually ramp up to the full source value after the channel’s control pin is pulsed. The same controller causes the LED current to gradually ramp down to zero if the channel’s input control pin is pulsed while the output channel is on. The LED current output can be controlled by a momentary contact switch or logic level signal. The IS32LT3120 is targeted at the automotive market with end applications to include map and dome lighting as well as exterior accent lighting. For 12V automotive applications the low dropout driver can support 1 to 3 LEDs per channel. It is offered in a small thermally enhanced SOP-8-EP package.