component
mc33364dr2g
Public Unreviewedby Ray
onsemi AC-DC Controllers and Regulators, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownMC33364DR2G
onsemi · AC-DC Controllers and Regulators · SOIC-16
MC33364DR2G from onsemi, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Zero Current | input | Zero Current Detect (ZCD). Monitors the auxiliary winding voltage during the demagnetization phase and compares it to an internal 1.0 V threshold (200 mV hysteresis) to reset the RS latch and initiate MOSFET turn-on for critical-conduction operation. Internal clamps at +10 V / -0.7 V; limit input current to ~2 mA with an external resistor. |
| 2 | N/C | unconnected | No internal connection. |
| 3 | Current Sense | input | Current Sense (CS) input. Monitors primary switch current via a sense resistor. Leading-Edge Blanking (~250 ns) suppresses false triggering. Compared to VFB/4 with a ~110 mV internal offset; maximum trip level of 1.15 V limits peak drain current to 1.15 V / Rsense. |
| 4 | Voltage FB | input | Voltage Feedback (FB) input, typically connected to the optocoupler collector for isolated secondary feedback. Internally pulled up to Vref via a 5 kΩ resistor. Input range 1.1 V to 1.4 V; controls the CS trip threshold as VCS(max) = VFB/4 - 0.1 V. |
| 5 | N/C | unconnected | No internal connection. |
| 6 | Vref | power_out | Buffered internal 5.0 V (typ 5.05 V, min 4.90 V / max 5.20 V) voltage reference output with undervoltage lockout (~4.5 V threshold). Maximum output current 5 mA. A 0.1 µF decoupling capacitor is recommended for stability. |
| 7 | N/C | unconnected | No internal connection. |
| 8 | Freq Clamp | input | Frequency Clamp (FC) pin. Sets the minimum off-time (typ 6.9 µs when open, giving fmax ≈ 126 kHz). Tie to GND to disable the clamp (critical conduction only); tie a resistor to Vref to increase toff, or to GND to decrease toff. Threshold ~1.95 V; sink current should be kept below ~80 µA for stable operation. |
| 9 | A GND | power_in | Analog Ground. Ground return for the internal circuitry excluding the gate drive stage. |
| 10 | P GND | power_in | Power Ground. Dedicated ground return for the gate drive output stage to isolate switching currents from analog ground. |
| 11 | Gate Drive | output | CMOS gate-drive output for the external power MOSFET. Typical source resistance 36 Ω, sink resistance 11 Ω; rise/fall ~67/28 ns into 1 nF load. Held low during UVLO - no external pull-down needed. |
| 12 | VCC | power_in | Main supply for all internal circuitry including the gate drive and Vref regulator. UVLO with hysteresis: startup at 15 V (typ), shutdown at 7.6 V (typ). Absolute maximum operating voltage 16 V. |
| 13 | N/C | unconnected | No internal connection. |
| 14 | N/C | unconnected | Pin position absent - package is SOIC-16 minus pins 14 and 15 (mechanically not present on lead frame). Treated as unconnected. |
| 15 | N/C | unconnected | Pin position absent - package is SOIC-16 minus pins 14 and 15 (mechanically not present on lead frame). Treated as unconnected. |
| 16 | Line | power_in | High-voltage line input to the integrated startup current source (rated up to 700 V). Connects directly to the rectified AC bulk voltage to charge the VCC capacitor at startup, eliminating the need for external bootstrap resistors. Startup current ~8.5 mA typ. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-16 |
| Category | PMIC |
| Pins | 16 |
Ordering variants
MC33364DR2GDGMC33364DR2GMC33364DR2GD1GMC33364DR2GD1R2GMC33364DR2GD2GMC33364DR2GD2R2G
CAD (KiCad official)
- Symbol:
MC33364DR2G - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (None pp, sha256
30ae7c27d7435187, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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