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40V LED Driver with Temperature Compensation

封装信息

CAD 模型: View CAD Model
Pkg. Type: SOIC
Pkg. Code: DCG8
Lead Count (#): 8
Pkg. Dimensions (mm): 4.9 x 3.9 x 1.5
Pitch (mm): 1.27

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US)
HTS (US)

产品属性

Pkg. Type SOIC
Lead Count (#) 8
Carrier Type Reel
Advanced Features PWM Dimming, DC Dimming
Architecture Buck
Channels (#) 1
Input Voltage Range (V) 6 - 40
Length (mm) 4.9
MOQ 2500
Moisture Sensitivity Level (MSL) 3
Output Current Max (A) 0.75
Package Area (mm²) 19.1
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Pitch (mm) 1.27
Pkg. Dimensions (mm) 4.9 x 3.9 x 1.5
Qty. per Carrier (#) 0
Qty. per Reel (#) 2500
Reel Size (in) 13
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Tape & Reel Yes
Thickness (mm) 1.5
Width (mm) 3.9
已发布 No

描述

The ZLED7010, one of our ZLED Family of LED control ICs, is an inductive step-down converter that is optimal for driving a single LED or multiple LEDs (connected in series) from a voltage source greater than the voltage rating of the LED. The ZLED7010 operates in continuous mode. Capable of operating efficiently with voltage supplies ranging from 6 VDC to 40 VDC, it is ideal for low-voltage lighting applications. The ZLED7010 minimizes current consumption by remaining in a low-current standby mode (output is off) until a voltage of ≥0.3V is applied to the ADJI pin. In operating mode, the ZLED7010 can source LEDs with an output current of ≤750mA (≤30 watts of output power) that is externally adjustable. The ZLED7010's integrated output switch and high-side current sensing circuit use an external resistor to adjust the average out-put current. LED control is achieved via an external control signal at the ZLED7010's ADJI pin, implemented as a pulse-width modulation (PWM) waveform for a gated output current or a DC voltage for continuous current. The ZLED7010 provides a temperature compensation function for maintaining stable and reliable LED operation. LED over-temperature conditions are detected via a negative temperature coefficient (NTC) thermistor mounted close to the LEDs. If an over-temperature condition occurs, the NTC value reaches the value of a threshold resistor and the IC reduces LED current automatically. After the circuit recovers to a safe temperature, current returns to the set value. ADJO outputs and ADJI inputs of consecutive ICs can be interconnected as a driver chain deploying the temperature compensation information of the predecessor. This reduces the part count because only the first stage of the series requires an NTC.