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FAN7930 − Critical Conduction Mode PFC Controller
| Not recommended for new design as of 09-Apr-2012 |
The FAN7930 is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the voltage-mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage sensing network necessary for a current-mode CRM PFC controller. FAN7930 provides over-voltage protection, openfeedback protection, over-current protection, inputvoltage- absent detection, and under-voltage lockout protection. The PFC-ready pin can be used to trigger other power stages when PFC output voltage reaches the proper level with hysteresis. The FAN7930 can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to a very low level. Using a new variable on-time control method, THD is lower than the conventional CRM boost PFC ICs.
Product Status/Packaging
| Product | Product & Eco Status | Replacement Part Number | Packaging & Packing Info | **Package Marking Convention | Qualification Support | Compliance Certificates |
|---|---|---|---|---|---|---|
| FAN7930DMX |
Obsolete as of 20-Jun-2012 ROHS Compliant |
FAN7930BMX |
SO 8L NB Details TAPE REEL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K
Line 2:FAN
Line 3:7930D |
ESD (HBM) :
2500
V Moisture Sensitivity Level (MSL) : 1 Max Reflow Temp : 260 |
|
| FAN7930DM |
Obsolete as of 20-Jun-2012 ROHS Compliant |
FAN7930BMX |
SO 8L NB Details RAIL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K
Line 2:FAN
Line 3:7930D |
ESD (HBM) :
2500
V Moisture Sensitivity Level (MSL) : 1 Max Reflow Temp : 260 |
|
| FAN7930MX |
Not recommended for new design as of 09-Apr-2012 ROHS Compliant |
SO 8L NB Details TAPE REEL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K
Line 2:FAN
Line 3:7930 |
FIT :
6.5
ESD (HBM) : 2500 V Moisture Sensitivity Level (MSL) : 1 Show more... |
||
| FAN7930M |
Obsolete as of 13-Dec-2011 ROHS Compliant |
SO 8L NB Details RAIL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K
Line 2:FAN
Line 3:7930 |
ESD (HBM) :
2500
V Moisture Sensitivity Level (MSL) : 1 Max Reflow Temp : 260 |
Features
- PFC Ready Signal
- Input Voltage Absent Detection Circuit
- Maximum Switching Frequency Limitation
- Internal Soft-Start and Startup without Overshoot
- Internal Total Harmonic Distortion (THD) Optimizer
- Precise Adjustable Output Over-Voltage Protection
- Open-Feedback Protection and Disable Function
- Zero Current Detector
- 150µs Internal Startup Timer
- MOSFET Over-Current Protection
- Under-Voltage Lockout with 3.5V Hysteresis
- Low Startup and Operating Current
- Totem-Pole Output with High State Clamp
- +500/-800mA Peak Gate Drive Current
- 8-Pin SOP
Application Notes
| Application Note | Description |
|---|---|
| AN-8035 | Design Consideration for Boundary Conduction Mode Power Factor Correction (PFC) Using FAN7930(1,199 K) 04-Apr-2013 |
| AN-9738 | Design Guideline on 150W Power Supply for LED Street Lighting Design Using FL7930B and FAN7621S(1,209 K) 20-Apr-2011 |
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