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2022-09-23 17:22:28
MT7200
MT7200
Model: MT7200
Brand: Maxic
Withstand voltage: 6V-55V
Package: SOT23-6
PF value: non-isolated buck
MT7200 Step-Down, High Brightness LED Constant Current Driver
MT7200 is a continuous current mode step-down constant current driver chip. When the input voltage is higher than the LED voltage, one or more LEDs in series can be effectively driven. The MT7200 can reach up to 55V, and the output current is adjustable.
The MT7200 is used to drive the external power MOS and set the average LED current through the current detection circuit, and realize analog dimming and PWM dimming, of which PWM supports 20KHz. In addition, the soft-start time can be programmed by an external capacitor at ADJ. When at 0.2V, the power MOS is turned off, and the MT7200 is in the standby state of current. The MT7200 has dual protection of over-temperature regulation (OTR) and over-temperature shutdown. When the ambient temperature rises, the current can be automatically reduced to ensure the system works reliably.