Vdd(V) | 5~42 |
---|---|
Solder | Lead-free (RoHS Compliant) |
Status | Prod |
Dimming | Power Supply PWM |
IOUT(mA) | 10~200 |
Outpack | Tape on Reel |
Pkg Pin(mm) | eSOP-8 |
Channels | 1 |
Document | Eval Board |
Temp.Range | Automotive Grade (-40C to +125°C) |
Type | 3173 |
Sink Source | Sink |
Product Type | LT = Lighting LED Driver |
Product Family | 32 = Automotive Analog and Mixed Signal |
Package Type | GR = SOP |
Solder Type | L = Lead-free (RoHS Compliant) |
Part Number | 3173 = 3173 |
Temperature Grade | A3 = Automotive temp. (-40°C to 125°C) |
Package option | TR = Tape & Reel |
The IS32LT3172 and IS32LT3173 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 2.5V 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 IS32LT3172/73 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 (3) of the IS32LT3172 can be tied to VBAT or BCM PWM signal for high side dimming. The EN Pin (3) of the IS32LT3173 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, SOP-8-EP package.