| Part Number | UCC3813PW-2 | UCC3813PW-4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - AC DC Converters, Offline Switchers | PMIC - AC DC Converters, Offline Switchers | 
|   |   | |
| Product Status | Active | Active | 
| Output Isolation | Non-Isolated | Non-Isolated | 
| Internal Switch(s) | Yes | Yes | 
| Voltage - Breakdown | - | - | 
| Topology | Boost, Buck, Flyback, Forward | Boost, Buck, Flyback, Forward | 
| Voltage - Start Up | 12.5 V | 12.5 V | 
| Voltage - Supply (Vcc/Vdd) | 8.3V ~ 12V | 8.3V ~ 12V | 
| Duty Cycle | 99% | 49% | 
| Frequency - Switching | 1MHz | 1MHz | 
| Power (Watts) | - | - | 
| Fault Protection | - | - | 
| Control Features | Frequency Control | Frequency Control | 
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 
| Package / Case | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 8-TSSOP | 8-TSSOP | 
| Mounting Type | Surface Mount | Surface Mount |