RH6617

@@ -0,0 +1,44 @@+# RH6617++**RONGHE Microelectronics** · LED Drivers · SOP-8++RH6617 from RONGHE Microelectronics, in a SOP-8. 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 | MOD2 | input | Mode configuration bit 2. CMOS input with internal pull-up (default logic high = VDD). Combined with MOD1, selects one of four output modes (single/dual channel, brightness memory, stepless vs 3-level dimming). |+| 2 | CMOD | bidirectional | Touch sensing sampling capacitor pin. Requires an external 15-47 nF capacitor to GND (X7R or NPO recommended). Larger capacitance increases touch sensitivity; must be placed close to the IC and away from heat/power sources. |+| 3 | VDD | power_in | Positive supply. Operating range 2.4 V - 5.5 V (typ 3.0 V). Standby average current ~15 µA @ 3 V. Decouple with capacitor placed close to IC. |+| 4 | GND | power_in | Negative supply / ground reference. |+| 5 | TCH | bidirectional | Touch sensing input. Connects to the external touch pad, typically through a series resistor Rs (>5 kΩ recommended) for ESD/noise immunity. Detects short and long press gestures for on/off/toggle and brightness dimming. |+| 6 | MOD1 | input | Mode configuration bit 1. CMOS input with internal pull-up (default logic high = VDD). Combined with MOD2, selects the output mode. |+| 7 | TO1 | output | PWM output channel 1 (push-pull CMOS). Drives LED load (typically via a current-limiting resistor and driver transistor). Sink drive IOL ≈ 38 mA @ 3 V (65 mA @ 5 V); source drive IOH ≈ 13 mA @ 3 V (32 mA @ 5 V). PWM 24 kHz stepless or 32 kHz 3-level. |+| 8 | TO2 | output | PWM output channel 2 (push-pull CMOS). Second dimming channel with same drive characteristics as TO1. May be left unconnected in single-output applications. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | RONGHE Microelectronics |+| Package | SOP-8 |+| Category | LED-drv |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `RH6617`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [RONGHE Microelectronics datasheet](docs/rh6617-datasheet.pdf) (9 pp, sha256 `ae38b1b3dc945014`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/rh6617-datasheet.pdf)

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