| Part Number | UCC3888DG4 | UCC3889DG4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - AC DC Converters, Offline Switchers | PMIC - AC DC Converters, Offline Switchers | 
|   |   | |
| Product Status | Obsolete | Discontinued at Digi-Key | 
| Output Isolation | Non-Isolated | Non-Isolated | 
| Internal Switch(s) | No | No | 
| Voltage - Breakdown | - | - | 
| Topology | Flyback | Flyback | 
| Voltage - Start Up | 8.4 V | 8.4 V | 
| Voltage - Supply (Vcc/Vdd) | 6V ~ 9.3V | 6.3V ~ 9.3V | 
| Duty Cycle | 7.6% | - | 
| Frequency - Switching | - | - | 
| Power (Watts) | - | - | 
| Fault Protection | Short Circuit | Short Circuit | 
| Control Features | - | - | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-SOIC | 8-SOIC | 
| Mounting Type | Surface Mount | Surface Mount |