Power Management & LED Lighting Driver ICs
On-Bright specializes in power management and LED lighting driver ICs, with a product line spanning AC/DC PWM controllers, LED driver ICs, and fast-charge protocol chips — widely used in power supplies, lighting, and consumer electronics. Contact JLink Technology for the full catalog and selection support.
Official Website| Part Number | Description | Package |
|---|---|---|
| OB5269 | OB5269 Green-Mode Current-Mode PWM Flyback Controller | SOP-8 |
| OB3375 | OB3375 Quasi-Resonant Buck LED Driver Controller | SOP8 |
| OB3392 | OB3392 Offline Single-Stage PSR Constant-Current LED Driver | SOT23-6 |
| OB2226 | OB2226 Integrated-MOSFET Non-Isolated Buck PWM Power Switch | DIP7 / SOP8 |
| OB2520 | OB2520 CC/CV Primary-Side (PSR) PWM Controller | SOT23-6 |
| OB2500 | OB2500 PSR Power Switch with Integrated MOSFET | SOP7 (OB2500N) / SOP8 (OB2500P) |
| OB2273 | OB2273 Current-Mode PWM Controller | SOT23-6 |
| OB2358 | OB2358 Integrated-MOSFET Current-Mode PWM Power Switch | DIP8 |
| OB2201 | OB2201 Quasi-Resonant (QR) Flyback PWM Controller | SOP-8 / DIP-8 |
| OB2263 | OB2263 Current-Mode PWM Controller | SOT23-6, DIP-8, SOP-8 |
| OB3350 | OB3350 LED Backlight Driver IC | SOP-8 |
| OB2632Q | OB2632Q Quasi-Resonant Multi-Mode PWM Controller | SOP-8, SOT23-6 |
| OB90R64A2 | OB90R64A2 Arm Cortex-M0 Microcontroller | LQFP32, QFN32 |
| OB39R32T1 | OB39R32T1 Capacitive Touch-Key MCU | SOP / SSOP / LQFP (20~32 pin) |
The OB5269 is a green-mode current-mode PWM flyback controller from On-Bright, integrating an HV startup circuit and extended burst mode that reduces frequency at light load for higher efficiency and energy-standard compliance. With built-in OCP/OLP/UVLO/OTP/OVP protections in an SOP-8 package, it suits phone chargers, adapters, and low-power AC/DC supplies.
The OB3375 is a high-efficiency buck LED driver controller from On-Bright using quasi-resonant, peak-current-mode control for white-LED and LCD-backlight strings. A built-in transconductance amplifier gives accurate constant-current (CC) regulation, with HPWM current setting and LPWM low-frequency dimming (1%~100%), plus full protection (LED open/short, CS open, MOS/diode/inductor short, OTP, UVLO). SOP8.
The OB3392 is an offline (AC-DC) isolated single-stage primary-side-regulated (PSR) constant-current LED lighting driver controller from On-Bright, with primary-side current regulation that needs no opto-coupler or TL431. It uses constant on-time for high power factor and quasi-resonant operation for efficiency, with line/load compensation and LED open/short, cycle-by-cycle current limit, VDD UVLO/OVP, and over-temperature protection. For LED bulbs and tubes. SOT23-6.
The OB2226 is a high-precision current-mode PWM power switch from On-Bright with a built-in high-voltage power MOSFET, for non-isolated buck (offline) supplies. It has a built-in error amplifier and load compensation for accurate constant voltage across universal AC input, with frequency reduction (light-load efficiency), frequency shuffling (EMI), soft-start, and Leading-Edge Blanking, plus full auto-recovery protection (OCP/OLP/SCP/OTP/OVP/UVLO). DIP7 / SOP8.
The OB2520 is a high-precision CC/CV primary-side regulation (PSR) PWM controller from On-Bright for low-power offline (AC/DC) chargers and adapters. Primary-side sensing eliminates the opto-coupler and TL431; it integrates constant-voltage (CV) and constant-current (CC) control with cycle-by-cycle current limit and VDD over-voltage protection, for low component count and high efficiency in a SOT23-6.
The OB2500 is an On-Bright offline primary-side-regulation (PSR) power switch with an integrated driver power MOSFET, achieving CC/CV constant-current/voltage output from primary-side sensing alone — eliminating the TL431 and opto-coupler and cutting BOM. It features frequency shuffling for low EMI, UVLO and over-temperature (OTP) protection, very low standby power, and DOE Level 6 average efficiency, in OB2500N (SOP7) and OB2500P (SOP8) — for 5V USB phone chargers and low-power AC/DC adapters.
The OB2273 is a high-performance current-mode PWM controller from On-Bright for low-standby offline (AC/DC) flyback supplies. It runs a fixed 65kHz with soft-start, frequency shuffling for EMI, and audio-noise-free light-load burst mode, with full OCP/OLP/UVLO/OTP/OVP protection in a SOT23-6 — common in chargers, adapters, and set-top-box power.
The OB2358 is an On-Bright current-mode PWM power switch with an integrated high-voltage power MOSFET, for low-cost off-line flyback AC/DC converters — up to ~27W at 230VAC and ~16W over a universal 85~265VAC input. It runs at a fixed 50kHz with frequency shuffling for low EMI, uses extended burst mode for low standby power, and includes cycle-by-cycle OCP, OLP, OVP, and UVLO auto-recovery protections in a DIP8 package — for adaptors, set-top boxes, and auxiliary/standby supplies (note: a PWM power switch, not an LED driver).
The OB2201 is an On-Bright offline flyback Quasi-Resonant (QR) PWM controller — a controller-type IC that drives an external power MOSFET. It runs at ~52kHz CCM at low line, switches to QR valley-switching at high line, and enters PFM at light load to raise efficiency across the range and lower EMI. With cycle-by-cycle over-current (OCP), output over-voltage (OVP), VCC under-voltage lockout (UVLO), and pin open/short protection, in SOP-8 / DIP-8, it suits adapters, chargers, and set-top-box supplies.
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.
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.
The OB90R64A2 is a low-power, highly-integrated 32-bit MCU from On-Bright based on an Arm Cortex-M0 core running up to 50 MHz, with a built-in LDO for a wide 1.8~5.5V operating range. With a 12-bit ADC, analog comparators, and UART (RS-485 capable), it suits chargers/power, LED lighting, and networking control applications.
The OB39R32T1 is an 8-bit Flash MCU from On-Bright with built-in capacitive touch sensing, using a 1T (single-clock-cycle) 8051-compatible core and offering 6~8 touch channels depending on package. With a wide 2.2~5.5V supply and good noise immunity, it is widely used for touch panels and keys in appliances and consumer products.
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