Overview
The TEA1755T/1,518 from NXP USA Inc. is a highly integrated power management IC designed for efficient and cost-effective power supply solutions. This device combines a high-voltage start-up DCM/QR flyback controller with an integrated DCM/QR PFC (Power Factor Correction) controller. It is particularly suited for applications requiring universal mains supply operation and high efficiency, such as notebook adapters and other power supplies up to 250 W.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | SO16 plastic small outline package; 16 leads; body width 3.9 mm (SOT109-1) |
| Mains Supply Voltage | 70 V (AC) to 276 V (AC) |
| Maximum Output Power | Up to 250 W |
| PFC Control | Dual-boost PFC with accurate maximum output voltage |
| Protection Features | OverTemperature Protection (OTP), Low and adjustable OverCurrent Protection (OCP) for both converters |
| Power-down Mode | Very low standby power, safe restart protection |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 hours) |
Key Features
- Integrated PFC and flyback controller for high efficiency and cost-effectiveness
- Universal mains supply operation between 70 V (AC) to 276 V (AC)
- Dual-boost PFC with accurate maximum output voltage (NXP Semiconductors patented)
- Adjustable PFC switch off delay and external PFC switch on and switch off override
- On-chip start-up current source and reduced IC supply current during burst mode enabling ErP lot 6 compliance
- Power-down functionality for very low standby power
- OverTemperature Protection (OTP) and Low and adjustable OverCurrent Protection (OCP) for both converters
Applications
The TEA1755T/1,518 is ideal for various power supply applications, particularly those requiring efficient and cost-effective solutions. Key applications include:
- Notebook adapters
- Power supplies up to 250 W
- Any application needing universal mains supply operation and high efficiency
Q & A
- What is the TEA1755T/1,518? The TEA1755T/1,518 is a highly integrated power management IC combining a high-voltage start-up DCM/QR flyback controller with an integrated DCM/QR PFC controller.
- What is the operating voltage range of the TEA1755T/1,518? The device operates on universal mains supply between 70 V (AC) to 276 V (AC).
- What is the maximum output power of the TEA1755T/1,518? The maximum output power is up to 250 W.
- What are the key protection features of the TEA1755T/1,518? The device includes OverTemperature Protection (OTP), Low and adjustable OverCurrent Protection (OCP) for both converters.
- How does the TEA1755T/1,518 manage standby power? The device has a power-down mode for very low standby power, with safe restart protection.
- Is the TEA1755T/1,518 RoHS compliant? Yes, the TEA1755T/1,518 is ROHS3 Compliant.
- What is the package type of the TEA1755T/1,518? The device is packaged in an SO16 plastic small outline package; 16 leads; body width 3.9 mm (SOT109-1).
- What are some typical applications for the TEA1755T/1,518? Typical applications include notebook adapters and power supplies up to 250 W.
- Does the TEA1755T/1,518 support dual-boost PFC? Yes, it supports dual-boost PFC with accurate maximum output voltage.
- How does the TEA1755T/1,518 handle PFC switch control? The device features adjustable PFC switch off delay and external PFC switch on and switch off override.
