LM3431_08 Datasheet, PDF (6/24 Pages) National Semiconductor (TI) – 3-Channel Constant Current LED Driver with Integrated Boost Controller

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: The Thermal Resistance specifications are based on a JEDEC standard 4-layer pcb. θ_JA will vary with board size and copper area.
Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature, T_{J_MAX}, the junction-to-ambient thermal resistance, θ_JA,
and the ambient temperature, T_A. The maximum allowable power dissipation at any ambient temperature is calculated using: P_{D_MAX} = (T_{J_MAX} – T_A)/θ_JA. The
maximum power dissipation is determined using T_A = 25°C, and T_{J_MAX} = 125°C.
Note 5: All room temperature limits are 100% production tested. All limits at temperature extremes are guaranteed through correlation using standard Statistical
Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Note 6: IQ specifies the current into the VIN pin and applies to non-switching operation.
Note 7: V_{OS_DELTA} specifies the maximum absolute difference between the offset of any pair of SNS amplifiers.
Note 8: The minimum DIM pulse width is an internal signal. Any pulse width may be applied to the DIM pin or generated via analog dimming mode. A pulse width
less than 0.4 µs will be internally extended to 0.4 µs.
www.national.com
6