IEEE 802.3af/at Compliant PoE PD Interface with
High Efficiency PSR/SSR Flyback Converter
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- Parameters
- Features
- Description
| Part number | SY23218XTQ |
|---|
| PoE standards | af/at |
|---|
| Vin (min) (V) | 10 |
|---|
| Vin (max) (V) | 57 |
|---|
| PD (max)(W) | <25W |
|---|
| Ron (typ) (mΩ) | 450 |
|---|
| Power conversion FETs integrated | YES |
|---|
| Breakdown voltage (V) | 150V/0.07Ω |
|---|
| Features | PSR/SSR Flyback,Hiccup UVP,Hiccup SCP,Hiccup OCP,Hiccup OVP,Hiccup OTP |
|---|
| Package | QFN4×6-38 |
|---|
| Operating temperature range(°C) | -40 to 125 |
|---|
| Functional safety category | |
|---|
- Fully Compatible with 802.3af/at Specifications
- 100V 0.45Ω PD Integrated Pass Switch
- 30W maximum power
- 100mA PD Inrush Current Limit
- 900mA PD Normal Operation Current Limit
- Auxiliary Adaptor ORing Support
- Flexible Topology:
- Primary-Side Regulated (PSR) Flyback (250kHz/400kHz Selectable)
- Secondary-Side Regulated (SSR) Flyback (Programmable Frequency)
- Integrated with 150V 70mΩ Power MOSFET
- Output Diode Compensation in PSR Mode
- Cycle-by-Cycle Current Sense Limit
- Precision Voltage Reference
- Frequency Modulation for EMI reduction
- Programmable Soft-start
- OLP Compensation for Wide-input Range
- Externally Programmable Thermal Shutdown
- Programmable Line Under Voltage Lockout (UVLO) with Adjustable Hysteresis
- Hiccup Protection for OLP, SCP, OVP and Thermal Shutdown
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY23218XTQ is intended for evaluating IEEE 802.3af/at Compliant PoE PD Interface with High Efficiency PSR/SSR Flyback Converter
