FP7209mR-G1

@@ -0,0 +1,55 @@+# FP7209mR-G1++**Advanced Analog Technology** · LED Drivers · TSSOP-14-EP++FP7209mR-G1 from Advanced Analog Technology, in a TSSOP-14-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDS | power_out | Internal LDO output that supplies internal control circuits and the gate driver. Typically regulated to ~8 V from HVDD. Bypass to GND with a ceramic capacitor. |+| 2 | DIM | input | Analog and digital (PWM) dimming control input. Accepts a DC voltage or PWM signal; the internal filter conditions the PWM into an average dimming reference. DIM start-up ~0.275 V, shutdown below 0.05 V. |+| 3 | EN | input | Enable control input. Enable threshold ~1.50 V (typ), shutdown ~1.3 V, 0.2 V hysteresis. Pull below the shutdown threshold to place the part in low-current shutdown. |+| 4 | COMP | output | Error amplifier compensation output. Connect an external RC network from COMP to GND to shape the control-loop response for current-mode boost regulation. |+| 5 | FB | input | Error amplifier inverting input / feedback pin. Regulated to VFB = 0.25 V (typ). Connect to the top of the LED-current sense resistor to close the constant-current loop. |+| 6 | OVP | input | Over-voltage protection sense input. Triggers when the pin exceeds VOVP ≈ 0.70 V (0.65-0.75 V). Drive from a resistor divider off the boost output to set the OVP trip point. |+| 7 | RT | input | Switching-frequency programming pin. Connect a resistor from RT to GND to set fOSC (100 kHz-1 MHz). RT = 51 kΩ → ~370 kHz; RT open (NC) → ~150 kHz. |+| 8 | SS | input | Soft-start programming pin. Connect a capacitor from SS to GND; internal ~3.5 µA current source charges it to ramp the internal reference and limit inrush current at start-up. |+| 9 | SC | output | LED short-circuit control pin. Works with the SCP block (VFB ≈ 0.40 V threshold, ~700 µs restart) to implement hiccup-mode protection on an LED string short. |+| 10 | CS | input | External N-MOSFET switch current-sense input. Cycle-by-cycle OCP trips at ~0.1 V; nominal current-sense regulation window VCS = 85-115 mV (typ 100 mV). Connect to the source of the switching MOSFET through a sense resistor. |+| 11 | HVDD | power_in | Main IC power supply input. Operating range 5-24 V (absolute max 26 V). Start-up voltage 2.8 V; UVLO ~2.6 V with 0.2 V hysteresis. Bypass to GND close to the pin. |+| 12 | GND | power_in | IC ground. Tie to the system ground plane together with pin 13 and the exposed pad. |+| 13 | GND | power_in | IC ground. Tie to the system ground plane together with pin 12 and the exposed pad. |+| 14 | EXT | output | External N-MOSFET gate driver output. Rail-to-rail push/pull between GND and VDS (~8 V). Typical pull-up/pull-down resistance ~0.9 Ω. |+| 15 | EP | passive | Exposed thermal pad on the package bottom. Must be soldered to the PCB ground plane for both electrical ground and heat dissipation (θJA ≈ 55 °C/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Advanced Analog Technology |+| Package | TSSOP-14-EP |+| Category | LED-drv |+| Pins | 15 |++## Ordering variants++- `FP7209mR-G1mR-G1`+- `FP7209mR-G1XR-G1`++## CAD (KiCad official)++- Symbol: `FP7209mR-G1`+- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`+- 3D model: TSSOP-14-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Advanced Analog Technology datasheet](docs/fp7209mr-g1-datasheet.pdf) (23 pp, sha256 `f7e48d89ac6d379f`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/fp7209mr-g1-datasheet.pdf)

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