| Part Number | FAN7601N | FAN7621N | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | 
| Category | PMIC - AC DC Converters, Offline Switchers | PMIC - AC DC Converters, Offline Switchers | 
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| Product Status | Obsolete | Obsolete | 
| Output Isolation | - | Isolated | 
| Internal Switch(s) | Yes | No | 
| Voltage - Breakdown | - | - | 
| Topology | Flyback | Half-Bridge | 
| Voltage - Start Up | 12 V | 14.5 V | 
| Voltage - Supply (Vcc/Vdd) | 8V ~ 20V | 11.3V ~ 25V | 
| Duty Cycle | 95% | 50% | 
| Frequency - Switching | Up to 300kHz | Up to 300kHz | 
| Power (Watts) | - | 200 W | 
| Fault Protection | Over Temperature, Over Voltage | Current Limiting, Over Load, Over Temperature, Over Voltage | 
| Control Features | Frequency Control, Soft Start | Frequency Control | 
| Operating Temperature | -25°C ~ 125°C (TA) | -40°C ~ 130°C (TJ) | 
| Package / Case | 8-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 8-MDIP | 16-PDIP | 
| Mounting Type | Through Hole | Through Hole |