OB3370 series are high integrated and cost effective Light Emitting Diode (LED) drivers optimized for LCD monitor backlight application. It operates in voltage mode Fixed-Frequency boost topology, supports internal burst and external burst (LPWM) dimming functions and over voltage protection.
Features:
◆ Minimal required external components
◆ Voltage mode boost topology
◆ High precision reference and Fixed-Frequency (300kHz) control
◆ External programmability of the key parameters
◆ Flexible Dimming mode Control:
◇ Internal burst ,external burst (LPWM) dimming control
◇ 0-2V DC voltage or external PWM direct dimming control without external circuits
◇ Dimming range programmable (Max.: 100%~0%)
◆ Reliable protection coverage:
◇ Output over voltage protection (OVP)
◇ Under voltage lockout
◆ Available in SOP8 package, RoHS compliant
Applications:
◆ LCD monitor
◆ LCD TV
Device | Topology | Dimming | OB3370N | boost | DC/LPWM | OB3370Q | buck | DC/LPWM | OB3370M | boost(MOSFET inside) | LPWM |
Typical Application:
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