LED Driver Control Dedicated CircuitTM1628's extreme description:
The TM1628 is a dedicated IC for LED (Light Emitting Diode) display driver control with a keyboard scanning interface, internally integrating MCU digital interfaces, data latches, LED drivers, and keyboard scanning circuits. This product boasts reliable quality, excellent stability, and strong anti-interference capability. It is primarily used in digital tube or LED display devices for home appliances (smart water heaters, microwave ovens, washing machines, air conditioners, induction cooktops), set-top boxes, electronic scales, and smart electricity meters.
LED Driver Control Dedicated CircuitTM1628 Specifications:
Utilizing CMOS technology
Multiple display modes (10 segments x 7 digits to 13 segments x 4 digits)
Maximum support matrix keypad 10x2
Dimming circuit (8-level duty cycle adjustable)
Serial Interface (CLK, STB, DIO)
Oscillation Mode: Built-in RC Oscillator
Built-in power-on reset circuit
Built-in data latching circuit
Strong anti-interference capability
Packaging: SOP28
LED Driver Control Dedicated CircuitPinout diagram of TM1628:
LED Driver Control Dedicated CircuitTM1628's Maximum Values:
TA=25℃,VSS=0V
| Parameters | Symbol | Numeric values | Unit |
| Logic Power Voltage | VDD | -0.5~+7 | V |
| Logic Input Voltage | VII | -0.5~VDD+0.5 | |
| LED SEG drive output current | IO1 | -50 | mA |
| LED Grid Drive Output Current | IO2 | +200 | |
| Power Loss | PD | 400 | mW |
| Operating Temperature | Topt | -40~+80 | ℃ |
| Storage Temperature | Tstg | -65~+150 |
LED Driver Control Dedicated CircuitTM1628 electrical characteristics:
TA=-20~+80℃,VDD=5V,VSS=0V
| Parameters | Symbol | Minimum Value | Typical Value | Maximum Value | Unit |
| High-level output current | Ioh1 | 20 | 35 | 60 | mA |
| Low-level input current | IOL | 80 | 120 | ||
| Low-level output current | Idout | 3 | |||
| High-level output current tolerance | Itolsg | 5 | % | ||
| High-level input voltage | VIH | 0.7 VDD | V | ||
| Low-level input voltage | VIL | 0.3 VDD |
