ICE2QR4765ZXKLA1 vs UC3875DWPTR
| Part Number |
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| Category | PMIC - AC DC Converters, Offline Switchers | PMIC - AC DC Converters, Offline Switchers |
| Manufacturer | Infineon Technologies | Texas Instruments |
| Description | IC OFFLINE SWITCH FLYBACK 7DIP | IC OFFLINE SW FULL-BRDG 28SOIC |
| Package | Bulk | -Reel® |
| Series | CoolMOS™, CoolSET™-Q1 | - |
| Operating Temperature | -40°C ~ 150°C (TJ) | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | 8-DIP (0.300\", 7.62mm), 7 Leads | 28-SOIC (0.295\", 7.50mm Width) |
| Supplier Device Package | PG-DIP-7-1 | 28-SOIC |
| Topology | Flyback | Full-Bridge |
| Voltage - Supply (Vcc/Vdd) | 10.5V ~ 27V | 9.5V ~ 20V |
| Frequency - Switching | 52kHz | 1MHz |
| Control Features | - | Frequency Control, Soft Start, Sync |
| Power (Watts) | 31 W | - |
| Voltage - Breakdown | 650V | - |
| Internal Switch(s) | Yes | - |
| Output Isolation | Isolated | Non-Isolated |
| Voltage - Start Up | 18 V | 10.75 V |
| Duty Cycle | 50% | 100% |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage | Current Limiting |
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1. How does an AC/DC converter work?
An AC/DC converter converts AC to DC through a rectifier circuit, and after filtering and voltage stabilization, it finally provides a stable DC output. Offline switching power supplies also use switching regulation technology to improve efficiency.
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2. What factors should be considered when selecting an AC/DC converter?
Factors such as input voltage range, output voltage and current requirements, power efficiency, packaging, temperature range, reliability and safety certification need to be considered when selecting.
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3. How important is power factor correction (PFC) for AC/DC converters?
Power factor correction (PFC) is very important for meeting energy regulations and improving power efficiency, especially in high-power applications. PFC circuits can reduce the harmonic interference of equipment to the power grid.
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4. Are offline switching power supplies suitable for high power applications?
Offline switching power supplies can be used for high power applications, but proper heat dissipation and power management solutions must be designed to ensure conversion efficiency and stability. Choosing a suitable topology such as LLC resonant converter can also help achieve high power output.
