EC4304 Datasheet, PDF (5/13 Pages) E-CMOS Corporation – 1A, Hysteretic, High Brightness LED Driver with Internal Switch

1A, Hysteretic, High Brightness
LED Driver with Internal Switch
EC4304
Absolute Maximum Rating
Supply Input Voltage, VIN (Note 1) ------------------------------------------------------ -0.3V to + 45V
ISENSE Voltage, VISENSE ------------------------------------------------------------------ +0.3V to -5V(measured with respect to VIN)
LX Output Voltage, VLX ------------------------------------------------------------------- -0.3V to + 45V
Adjust Pin Input Voltage, VADJ ------------------------------------------------------------ -0.3V to + 6V
Switch Output Current, ILX ----------------------------------------------------------------- 1.2A
Operation Temperature Range ---------------------------------------------------------- -40°C to +125°C
Storage Temperature Range ------------------------------------------------------------- -55°C to +150°C
Junction Temperature ---------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec) ------------------------------------------------- 260°C
ESD Rating (Note 2)
HBM (Human Body Mode) --------------------------------------------------------- 4kV
MM (Machine Mode) ----------------------------------------------------------------- 200V
Thermal Information
Package Thermal Resistance (Note 3)
SOT23-5L θJA ------------------------------------------------------------------------ 250°C/W
SOT23-5L θJC ------------------------------------------------------------------------ 100°C/W
SOT89-5L θJA ------------------------------------------------------------------------ 175°C/W
SOT89-5L θJC ------------------------------------------------------------------------ 58°C/W
Package Thermal Resistance (Note 4)
DFN3x3-8L θJA ------------------------------------------------------------------------ 70°C/W
DFN3x3-8L θJC ----------------------------------------------------------------------- 8.2°C/W
Power Dissipation, PD @ TA = 25°C
SOT23-5L ----------------------------------------------------------------------------- 0.4W
DFN3x3 8L ----------------------------------------------------------------------------- 1.4W
SOT89-5L ----------------------------------------------------------------------------- 0.7W
Recommended Operation Conditions
Operating Junction Temperature Range (Note 5) ---------------------------------- -40°C to +125°C
Operating Ambient Temperature Range ---------------------------------------------- -40°C to +85°C
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device.
These are for stress ratings. Functional operation of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may remain possibility to affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity tes t board of JEDEC
51-3 thermal measurement standard.
Note 4. θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
measured at the exposed pad of the package.
Note 5. The device is not guaranteed to function outside its operating conditions.
E-CMOS Corp. (www.ecmos.com.tw)
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4B25N-Rev.F005