component
TJ9910AGD
Public Made by Adomby adom
HTC Korea TAEJIN Tech LED Drivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTJ9910AGD
HTC Korea TAEJIN Tech · LED Drivers · SOP-8
TJ9910AGD from HTC Korea TAEJIN Tech, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | High-voltage input supply pin, with a DC input range of 10V to 600V and an input surge withstand of up to 600V. |
| 2 | CS | input | Senses the LED string current through the external series sense resistor; gate drive turns off when the CS voltage exceeds the internal 250 mV threshold (238 mV to 262 mV). |
| 3 | GND | power_in | Ground reference for the device; all absolute maximum voltage ratings are specified to GND. |
| 4 | GATE | output | Drives the gate of the external power MOSFET, with high output at VDD-0.3V minimum and low output at 0.3V maximum. |
| 5 | PWM_D | input | Low-frequency PWM dimming input that also acts as the enable; input low is 0.8V maximum and input high is 2.0V minimum, with an internal 100kΩ pull-down to GND, and pulling it low disables the converter. |
| 6 | VDD | power_out | Internally regulated supply output of 7.0V to 8.0V (7.5V typical) that can also be driven externally, with a maximum applied voltage of 10.0V and up to 0.7mA available for external circuitry at VIN = 10V to 100V. |
| 7 | LD | input | Linear dimming input where a control voltage from 0 to 250 mV overrides the internal 250 mV CS threshold; voltages above 250 mV do not change the output current. |
| 8 | ROSC | input | Oscillator control pin where a resistor to GND sets the switching frequency, for example 1.00MΩ gives 25 kHz typical and 226kΩ gives 100 kHz typical. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOP-8 |
| Category | LED Drivers |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input DC Supply voltage to GND | -0.5 | 600 | V | 1 | |||
| CS, LD, PWM_D, GATE to GND | -0.3 | V | 1 | ||||
| Operating Temperature Range | -40 | 85 | ℃ | 1 | |||
| Junction Temperature | TJOPR | 125 | ℃ | 1 | |||
| Storage Temperature Range | TSTR | -65 | 150 | ℃ | 1 | ||
| Input DC supply voltage range | VINDC | 10 | 600 | V | 3 | ||
| Shut-down mode supply current | IINSD | 1 | mA | Pin PWM_D to GND, VIN = 8V | 3 | ||
| Internally regulated voltage | VDD | 7 | 7.5 | 8 | V | VIN = 10 to 600V, IDD(ext)=0, pin Gate open | 3 |
| Load regulation of VDD | ΔVDD,load | 0 | 100 | mV | IDD(ext) = 0 to 1.0mA, 500pF at GATE, ROSC = 226kΩ, PWM_D = VDD | 3 | |
| Maximal pin VDD voltage | VDD,max | 10 | V | When an external voltage is applied to pin VDD | 3 | ||
| VDD current available for external circuitry | IDD(ext) | 0.7 | mA | VIN = 10 to 100V | 3 | ||
| VDD undervoltage lockout threshold | UVLO | 6.09 | 7.28 | V | VIN rising | 3 | |
| VDD undervoltage lockout hysteresis | ΔUVLO | 500 | mV | VIN falling | 3 | ||
| Pin PWM_D input low voltage | VEN(lo) | 0.8 | V | VIN = 10 to 600V | 3 | ||
| Pin PWM_D input high voltage | VEN(hi) | 2 | V | VIN = 10 to 600V | 3 | ||
| Pin PWM_D pull-down resistance | REN | 50 | 100 | 150 | kΩ | VEN = 5V | 3 |
| Current sense pull-in threshold voltage | VCS(hi) | 238 | 250 | 262 | mV | TA = -40C to +85C | 3 |
| GATE low output voltage | VGATE(lo) | 0 | 0.3 | V | IOUT = -10mA | 3 | |
| Oscillator frequency (ROSC = 1.00MΩ) | fOSC | 20 | 25 | 30 | kHz | ROSC = 1.00MΩ | 3 |
| Oscillator frequency (ROSC = 226kΩ) | fOSC | 80 | 100 | 120 | kHz | ROSC = 226kΩ | 3 |
| Pin LD (Linear Dimming) voltage range | VLD | 0 | 250 | mV | TA = <85C, VIN = 12V | 3 | |
| Current sense blanking interval | TBLANK | 150 | 215 | 280 | ns | VCS = 0.55VLD, VLD = VDD | 3 |
| Delay from CS to GATE lo | tDELAY | 300 | ns | VIN = 12V, VLD = 0.15, VCS = 0 to 0.22V after TBLANK | 3 | ||
| GATE output rise time | tRISE | 30 | 50 | ns | CGATE = 500pF, VDD = 7.5V | 3 | |
| GATE output fall time | tFALL | 30 | 50 | ns | CGATE = 500pF, VDD = 7.5V | 3 |
CAD (KiCad official)
- Symbol:
TJ9910AGD - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tj9910agd-etched.step/tj9910agd-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tj9910agd.step/tj9910agd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (8 pp, sha256
ddc61bfab8bfd5f8, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).