TM1640 Datasheet PDF – LED Driver Control Circuit IC
LED (Light Emitting Diode Display) driver control circuit
TM1640 overview
The TM1640 is an LED (Light Emitting Diode Display) driver control circuit made by Titan Micro Electronics, supplied in an SOP 28 Pin Type package. The absolute maximum ratings table on this page lists the 7 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the TM1640 pinout and maximum ratings, with the full datasheet PDF to preview below or download.
TM1640 is a LED (Light Emitting Diode Display) drive control circuit integrating MCU digital interface, digital latch, LED high voltage drive circuit, etc. The product has excellent performance and reliable quality, and is mainly applied in display drive for electronic scales and other small home appliances. In addition, it adopts the SOP28 packaging mode.
Datasheet
TM1640 features
- Power CMOS technique
- Display mode (8 sections × 16 bits) supports common cathode digital tube output
- Brightness adjusting circuit (duty cycle adjustable among 8 levels)
- Dual-line serial interface (CLK, DIN)
- Mode of oscillation: built-in RC oscillation (450KHz+5%)
- Built-in power-on reset circuit
- Built-in auto blanking circuit
- Mode of packaging: SOP28
TM1640 pinout
| Pin | Name | Description |
|---|---|---|
| 7 | Data input | Serial data input; input data changed at low level and transferred at high level of SCLK |
| 8 | Clock input | Input data at rising edge |
| 9-16 | Output (section) | Section output, P tube open drain output |
| 18-28 1-5 | Output (bit) | Bit output, N tube open drain output |
| 17 | Logic power supply | 5V±10% |
| 6 | Logic grounding | Connect to system grounding |
Absolute maximum ratings
| Parameter | Value | Unit |
|---|---|---|
| Logic power voltage | Sign VDD / Scope -0.5 to +7.0 | V |
| Logic input voltage | Sign VI1 / Scope -0.5 to VDD + 0.5 | V |
| LED SEG drive output current | Sign IO1 / Scope -200 | mA |
| LED GRID drive output current | Sign IO2 / Scope +20 | mA |
| Power consumption | Sign PD / Scope 400 | mW |
| Work temperature | Sign Topt / Scope -40 to +85 | ℃ |
| Storage temperature | Sign Tstg / Scope -65 to +150 | ℃ |
TM1640 applications
- LED displays
- Keypad scanning
- Consumer electronics
- Instrumentation
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