Current Resonant ICs
FA6A11N
-
Status:Available
FA6A11N is a switching power supply control IC suitable for LLC current resonance circuits. It facilitates the design of switching power supplies for current resonant converters via a wide range of inputs worldwide. It also incorporates a startup element with an absolute maximum input voltage of 600 V, thereby contributing to circuit miniaturization and low power consumption.
Features
- Enables configuration of single-converter LLC current resonant power supply systems via a wide range of inputs worldwide
- Built-in high-side and low-side drive circuits that can directly connect power MOSFETs, operating at 50% duty
- Built-in start-up circuit enables power supply circuit miniaturization and low power consumption
- Selectable between normal operation mode, low standby mode and ultra-low standby mode (STB pin)
- Reduces standby power consumption via burst operation in low standby mode
- Built-in input filter X capacitor discharge function that reduces loss due to discharge resistance
- Reduces IC current consumption to 0.9 mA during operation
- Prevents off-resonance and hard-switching by automatically setting dead time inside the IC
- Built-in protection against overcurrent (IS pin), overload (VW pin, FB pin), overvoltage (VH pin, VCC pin), and overheating
- Built-in adjustable-level brown-in/out function (BO pin)
- Built-in power good signal output (PGS pin)
- Enables condition settings such as external latch stop, overcurrent protection (IS pin detection) delay time setting, operation setting in standby mode, and PFC availability setting (MODE pin)
- Built-in low-voltage malfunction prevention function (VCC pin, VB pin)
- Overcurrent protection operation: Timer match
- Package: SOP-16 (JEDEC compliant)
Applications
- Switching Power Supplies
Specifications
| Controller type | LLC |
|---|---|
| Applied circuit Detail | Current resonance LLC (half bridge) |
| Frequency (kHz) | Selfoscillation |
| VCC(V) | 14 to 27 |
| Built-in start up circuit (V) | 600 |
| Over load protection | Timer-latch |
| Over voltage protection | Latch (VCC) |
| Package | SOP-16(N) |
Documentation Tools
| Design tools | LLC board design tool |
|---|---|
| Selection Guide | Power Supply Control IC Selection Guide |
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