component
zxsc400e6ta
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Diodes Incorporated LED Drivers, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownZXSC400E6TA
Diodes Incorporated · LED Drivers · SOT-23-6
ZXSC400E6TA from Diodes Incorporated, in a SOT-23-6. 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 | VCC | power_in | Supply voltage input, 1.8V to 8V operating range (absolute max -0.3V to +10V). Powers the internal bandgap reference, bias generator and drive stage. |
| 2 | GND | power_in | Ground return for the device. Should be connected to the low-side of RSENSE and the input capacitor with a short, low-impedance trace. |
| 3 | STDN | input | Shutdown control input. Pulling STDN >=1.5V (or leaving open) enables the converter; pulling <=0.55V (typ 0.7V) puts the device in shutdown (~4.5uA quiescent). High-impedance input with ~1uA typ pull-up; also usable for PWM dimming at >=120Hz. Absolute max the lower of +5.0V or VCC+0.3V. |
| 4 | SENSE | input | Inductor current sense input. Internal threshold set to 30mV (22-34mV over temp); when the voltage across the external RSENSE resistor exceeds this level, the DRIVE output is turned off for ~1.7us via the internal monostable. Input current typ -7uA. Absolute max the lower of +5.0V or VCC+0.3V. |
| 5 | VFB | input | Feedback / reference input. Internal threshold nominally 300mV (291-309mV). Connect an external sense resistor from the bottom of the LED string to ground to program the LED current as ILED = 300mV / RLED. Reference tolerance +/-3% over 1.8V-8V VCC. |
| 6 | DRIVE | output | Dynamic drive output for the external switching transistor (BJT base or MOSFET gate). Provides ~2.5mA typ (2-5mA) source current with max VDRIVE = VCC-0.4V, and drives up to ~300pF gate capacitance. Both transitions include a short transient discharge current for efficient switching. Absolute max -0.3V to VCC+0.3V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23-6 |
| Category | LED-drv |
| Pins | 6 |
Ordering variants
ZXSC400E6TA
CAD (KiCad official)
- Symbol:
ZXSC400E6TA - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (None pp, sha256
28529ae5cee95f0a, 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).