OB3350 LED Backlight Driver IC
The OB3350 is a current-mode boost LED backlight driver providing stable constant-current drive for LCD monitor and TV backlighting. Fixed-frequency control with external PWM dimming and multiple built-in protections.
The OB2263 is a current-mode PWM controller for offline flyback power supplies, ideal for chargers and adapters under 30W. The switching frequency is set by an external resistor, with comprehensive protections, EMI frequency-shuffling, and low standby power.
| Type | Current-Mode PWM Controller |
| Supply Voltage | 10V ~ 30V |
| Frequency | Programmable (~65kHz typ) |
| Protections | OCP / OLP / OVP / UVLO |
| Temp Range | -20°C ~ 85°C |
| Package | SOT23-6, DIP-8, SOP-8 |
The OB3350 is a current-mode boost LED backlight driver providing stable constant-current drive for LCD monitor and TV backlighting. Fixed-frequency control with external PWM dimming and multiple built-in protections.
The OB2632Q is a quasi-resonant (QR) multi-mode PWM controller designed for USB-PD fast-charge adapters, with a wide supply range covering the PD output voltage sweep. It automatically switches QR / PFM / CCM modes by load for efficiency and low EMI.
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