The M6362 is a highly integrated current-mode PWM controller IC designed for high-performance, low standby power and low-cost offline flyback power adapters. Operating at a fixed frequency of 65kHz under full-load conditions, the chip enters valley-switching green mode as the load decreases to maintain high conversion efficiency at high power levels. In light-load conditions, the device adopts an extended burst mode to effectively reduce standby power consumption and achieve high efficiency across the entire load range.
The M6362 features ultra-low VCC startup current and operating current to meet low-power design requirements. It integrates a full set of auto-recovery protection functions including cycle-by-cycle overcurrent protection (OCP), overload protection (OLP), under-voltage lockout (UVLO), over-temperature protection (OTP) and overvoltage protection (OVP). The IC delivers excellent EMI immunity. Its operating frequency is kept above the 25kHz audio band to eliminate audible noise.
Offline AC-DC Flyback Converter
General Power Supplies
Power Adapters
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Compliant with Level VI energy efficiency, excellent power consumption at light/no-load conditions and superior conversion efficiency
Start-up soft-start to reduce MOSFET voltage stress
Multi-stage composite operation: fixed 65 kHz at full load, valley switching for medium-low loads, extended burst mode under light/no-load conditions
Integrated frequency dithering technology for EMI optimization, built-in audible noise suppression
Supports internal / external OTP over-temperature protection (external mode by connecting NTC to PRT pin)
Applications: Charger and adapter power solutions up to 80 W
Comprehensive protection with auto-recovery: UVLO under-voltage lockout, VCC OVP, OLP overload protection, output OVP (trigger voltage adjustable via external resistor)
| Category | Parameters |
| Operating Mode |
Multi-stage composite operation: fixed 65 kHz PWM, valley switching at full load, extended burst mode for medium and low loads |
| Response / Oscillation Frequency | Normal Operating Frequency: 60 / 65 / 70 kHz (Typical: 65 kHz); Burst Mode Frequency: 25 kHz; Frequency Dithering: ±6% |
| Supply Current |
VCC Start-up Current: 2 / 5 µA; Operating Current: 2.5 / 3 mA; Burst Mode Current: 0.6 / 0.7 mA |
| Undervoltage Lockout (UVLO) | VCC Start-up Current: 2 / 5 µA; Operating Current: 2.5 / 3 mA; Burst Mode Current: 0.6 / 0.7 mA |
| Overvoltage Protection |
26.5 / 28 / 29.5 V; Adjustable Output OVP Current Threshold: 170 / 180 / 190 µA |
| Feedback (FB) |
Open-loop Voltage: 5.1 V |
| Current Sensing (SEN) | Cycle-by-cycle Overcurrent Threshold: 0.43 / 0.45 / 0.47 V; OCP Clamp: 0.72 V; Leading Edge Blanking: 300 ns; Detection Delay: 90 ns; Soft-start Time: 2 ms |
| Gate Drive (GATE) | Low-side output: 1 V / High-side output: 6 V; Clamp Voltage: 11 V; Rise Time: 100 ns; Fall Time: 30 ns |
| Protection Functions |
Cycle-by-cycle Current Limit (OCP), Overload Protection (OLP), Under Voltage Lockout (UVLO), Thermal Shutdown (OTP), VCC / Output Overvoltage Protection (OVP), all with auto-recovery; Over-temperature threshold adjustable via thermistor connected to PRT pin |
| Overtemperature Protection |
OTP trigger temperature: 150 ℃; recovery temperature: 120 ℃ (internal); OTP sensing current: 94 / 100 / 106 µA |
| Temperature Parameters | Operating Junction Temperature: -40 ~ 150 ℃; Ambient Temperature: -40 ~ 85 ℃; Storage Temperature: -55 ~ 150 ℃; Soldering Condition: 260 ℃ / 10 s |
| Energy Efficiency Standards | Compliant with latest Level VI energy efficiency standard; ultra-low standby power consumption, audible noise suppression |
| Package Type | SOT23-6 |
Pending update...
