C8624
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the C8624 family does
The C8624 is an LED driver chip designed for 8x11 matrix displays, supporting up to 88 LEDs with independent 8-bit PWM control and 256-level dimming. It operates on a 2.9V to 5.5V supply, delivers 6 to 30mA constant current, and features a class SPI interface running at 20MHz. The device includes built-in current regulation with 64 global gain levels and a 250uA sleep current. Engineers typically use this component in mobile handheld devices, keyboards, mice, white appliances, and smart speakers to drive segmented or matrix LED displays efficiently.
C8624 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 5 mA | 7 mA | CLK & DIN = 0, 所有输出关闭; icc | chipfountain datasheet, p. 6 |
| output voltage | 650 mV | — | — | Iout = 25mA; vout | chipfountain datasheet, p. 6 |
| output current | — | 30 mA | — | 输出恒流SEG1~SEG12, 输出打开 | chipfountain datasheet, p. 6 |
| supply voltage range | 2.9 V | — | 5.5 V | chipfountain datasheet, p. 6 | |
| switching frequency | — | 8 MHz | — | 内部RC时钟频率FOSC | chipfountain datasheet, p. 7 |
| operating temperature | -40 °C | — | 85 °C | chipfountain datasheet, p. 6 — 6. 极限参数 | |
| clock frequency | — | — | 20 MHz | fclk | chipfountain datasheet, p. 7 |
| standby current | — | 300 µA | — | 休眠模式电流ISD | chipfountain datasheet, p. 6 |
| output count | — | 20 | — | chipfountain datasheet, p. 4 — 1) C8624QP |
C8624 frequently asked questions
What is the clock frequency (fclk)?
The clock frequency (fclk) is 20 MHz.
What is the operating temperature?
The operating temperature is 85 °C.
What is the output count?
The output count is 20.
What is the output current when SEG1~SEG12 are in constant current output and the output is enabled?
The output current is 30 mA.
What is the output voltage when Iout = 25mA?
The output voltage is 650 mV.
What is the quiescent current (icc) when CLK & DIN = 0 and all outputs are off?
The quiescent current is 5 mA.
What is the standby current (ISD) in sleep mode?
The standby current ISD is 300 µA.
What is the supply voltage range for the C8624?
The supply voltage range is 5.5 V.
What is the switching frequency when the internal RC clock frequency FOSC is used?
The switching frequency is 8 MHz.