component
TM1628L
Public Made by Adomby adom
TM Shenzhen Titan Micro Elec LED Drivers, SOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownTM1628L
TM Shenzhen Titan Micro Elec · LED Drivers · SOP-28
TM1628L from TM Shenzhen Titan Micro Elec, in a SOP-28. 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 | NC | unconnected | Empty pin with no internal connection; the datasheet lists it as 内部无连线 (no internal wiring). |
| 2 | DIO | bidirectional | Serial data input/output that samples data on the CLK rising edge and outputs data on the CLK falling edge, LSB first, with an internal 20K pull-up resistor. |
| 3 | CLK | input | Serial clock input that reads data on the rising edge and outputs data on the falling edge, with an internal 20K pull-up resistor. |
| 4 | STB | input | Chip-select input that initializes the serial interface on its falling edge, causes the first byte after STB goes low to be treated as a command, and causes CLK to be ignored while STB is high; it has an internal 20K pull-up resistor. |
| 5 | K1 | input | Key-scan data input whose value is latched after the display cycle ends. |
| 6 | K2 | input | Key-scan data input whose value is latched after the display cycle ends. |
| 7 | VDD | power_in | Logic power supply input; the normal operating range is 3 V to 5.5 V with 5 V typical. |
| 8 | SEG1/KS1 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 9 | SEG2/KS2 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 10 | SEG3/KS3 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 11 | SEG4/KS4 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 12 | SEG5/KS5 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 13 | SEG6/KS6 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 14 | SEG7/KS7 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 15 | SEG8/KS8 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 16 | SEG9/KS9 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 17 | SEG10/KS10 | output | Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA. |
| 18 | GRID5/SEG14 | output | Multiplexed segment/grid output that serves as GRID5 or SEG14, with a grid sink current limit of 200 mA. |
| 19 | GRID6/SEG13 | output | Multiplexed segment/grid output that serves as GRID6 or SEG13, with a grid sink current limit of 200 mA. |
| 20 | GRID7/SEG12 | output | Multiplexed segment/grid output that serves as GRID7 or SEG12, with a grid sink current limit of 200 mA. |
| 21 | VDD | power_in | Logic power supply input; the normal operating range is 3 V to 5.5 V with 5 V typical. |
| 22 | GND | power_in | Logic ground that must be connected to system ground. |
| 23 | GRID4 | output | Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA. |
| 24 | GRID3 | output | Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA. |
| 25 | GND | power_in | Logic ground that must be connected to system ground. |
| 26 | GRID2 | output | Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA. |
| 27 | GRID1 | output | Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA. |
| 28 | GND | power_in | Logic ground that must be connected to system ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TM Shenzhen Titan Micro Elec |
| Package | SOP-28 |
| Category | LED Drivers |
| Pins | 28 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 逻辑电源电压 (Logic supply voltage) | VDD | 3 | 5 | 5.5 | V | Ta = -20 ～ +80℃, Vss = 0V | 15 |
| 高电平输入电压 (High-level input voltage) | VIH | 0.7 | VDD | Ta = -20 ～ +80℃, Vss = 0V | 15 | ||
| 低电平输入电压 (Low-level input voltage) | VIL | 0 | 0.3 | VDD | Ta = -20 ～ +80℃, Vss = 0V | 15 | |
| 逻辑电源电压 (Logic supply voltage, absolute max) | VDD | -0.5 | 7 | V | Ta = 25℃, Vss = 0V | 15 | |
| 逻辑输入电压 (Logic input voltage) | VI1 | -0.5 | V | Ta = 25℃, Vss = 0V | 15 | ||
| LED SEG 驱动输出电流 (LED SEG drive output current) | IO1 | -50 | mA | Ta = 25℃, Vss = 0V | 15 | ||
| LED GRID 驱动输出电流 (LED GRID drive output current) | IO2 | 200 | mA | Ta = 25℃, Vss = 0V | 15 | ||
| 功率损耗 (Power dissipation) | PD | 400 | mW | Ta = 25℃, Vss = 0V | 15 | ||
| 工作温度 (Operating temperature) | Topt | -40 | 80 | ℃ | Vss = 0V | 15 | |
| 储存温度 (Storage temperature) | Tstg | -65 | 150 | ℃ | Vss = 0V | 15 | |
| 高电平输出电流 (High-level output current) | Ioh1 | 20 | 35 | 50 | mA | SEG1～SEG10, Vo = VDD -3V | 16 |
| 低电平输入电流 (Low-level input current, as printed, GRID pins) | IOL | 80 | 120 | mA | GRID1～GRID7, Vo=0.3V | 16 | |
| 低电平输出电流 (Low-level output current) | Idout | 3 | mA | Vo = 0.4V, Dout | 16 | ||
| 高电平输出电流容许量 (High-level output current tolerance) | Itolsg | 5 | % | Vo = VDD, 3V, SEG1～SEG10 | 16 | ||
| 高电平输入电压 (High-level input voltage, electrical table) | VIH | 0.7 | VDD | CLK, DIO, STB | 16 | ||
| 低电平输入电压 (Low-level input voltage, electrical table) | VIL | 0.3 | VDD | CLK, DIO, STB | 16 | ||
| 传输延迟时间 (Propagation delay time) | tPLZ | 300 | ns | CLK → DOUT | 16 | ||
| 传输延迟时间 (Propagation delay time) | tPZL | 100 | ns | CL = 15pF, RL = 10KΩ | 16 | ||
| 上升时间 (Rise time) | tTZH 1 | 2 | μs | CL = 300pF, SEG1～SEG10 | 16 | ||
| 上升时间 (Rise time) | tTZH 2 | 0.5 | μs | GRID1～GRID4, SEG12/GRID7～SEG14/GRID5 | 16 | ||
| 下降时间 (Fall time) | tTHZ | 1.5 | μs | CL = 300pF, SEGn, GRIDn | 16 | ||
| 最大输入时钟频率 (Maximum input clock frequency) | Fmax | 1 | MHz | 占空比50% (duty cycle 50%) | 16 | ||
| 输入电容 (Input capacitance) | CI | 15 | pF | 16 | |||
| 时钟脉冲宽度 (Clock pulse width) | PWCLK | 500 | ns | 17 | |||
| 选通脉冲宽度 (Strobe pulse width) | PWSTB | 1 | μs | 17 | |||
| 数据建立时间 (Data setup time) | tSETUP | 100 | ns | 17 | |||
| 数据保持时间 (Data hold time) | tHOLD | 100 | ns | 17 | |||
| CLK →STB 时间 (CLK to STB time) | tCLK-STB | 1 | μs | CLK↑→STB↑ | 17 |
CAD (KiCad official)
- Symbol:
TM1628L - Footprint:
Package_SO:SOP-28_8.4x18.16mm_P1.27mm - 3D model: SOP-28 (KiCad packages3D, STEP)
- 3D model files:
tm1628l-etched.step/tm1628l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tm1628l.step/tm1628l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TM Shenzhen Titan Micro Elec datasheet (18 pp, sha256
b83dc883c47e4b9a, retrieved 2026-10-19, 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: 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).