UCC28C42QDRQ1 vs UC3842BD1 Comparison
Detailed side-by-side comparison of UCC28C42QDRQ1 by Texas Instruments and UC3842BD1 by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
UCC28C42QDRQ1 - 1MHz Automotive Current-Mode PWM | Texas Instruments
UCC28C42QDRQ1 ✓ ActiveSTMicroelectronics
UC3842BD1 - Current Mode PWM Controller | STMicroelectronics | SMPS
UC3842BD1 ✓ ActiveSpecification Comparison
| Parameter | UCC28C42QDRQ1 | UC3842BD1 |
|---|---|---|
| Brand | Texas Instruments | STMicroelectronics |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.40 | $0.15 |
| Topology | Flyback, Step-Up/Step-Down (current-mode PWM controller) | — |
| Control Mode | Peak Current-Mode | — |
| Maximum Switching Frequency | 1000 kHz (1 MHz) | — |
| Supply Voltage Range | 9 V to 18 V | — |
| Maximum Output Current | 1 A (output driver) | — |
| Technology | BiCMOS | — |
| Regulation | Primary-side (aux winding) or secondary-side (opto-coupler) | — |
| UVLO | Yes, family UVLO options | — |
| Package | 8-SOIC (D) | SOIC-8 |
| Mounting Type | Surface Mount | Surface Mount |
| Temperature Grade | Automotive (AEC-Q100) | — |
| Pin Compatibility | Pin-for-pin compatible with UCx84xA / UCx84x family | — |
| Duty Cycle Limit Options | Yes (family option) | — |
| RoHS Status | Compliant | Compliant |
| Datasheet | 46 pages, TI UCC28C42-Q1 | — |
| Input Voltage Range | — | 7.5 V to 30 V |
| Output Current (Peak) | — | 1 A |
| Oscillator Frequency (Max) | — | 500 kHz |
| Maximum Duty Cycle | — | 96% |
| Reference Output Voltage | — | 5 V |
| Reference Tolerance | — | ±2% |
| Error Amplifier Bandwidth | — | 1 MHz |
| Current Sense Threshold | — | 1 V |
| Startup Current | — | 0.5 mA |
| Operating Supply Current | — | 11 mA |
| Under-Voltage Lockout (UVLO) On | — | 16 V |
| Under-Voltage Lockout (UVLO) Off | — | 10 V |
| Operating Temperature Range | — | -40°C to +150°C |