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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HOLTEK HT1622
Configuration
1 options
Configuration
Date code within 2 years
Availability on request
Technical data
Product details
19
specifications
Core information
- Product name
- HOLTEK(Holtek / Holtek) HT1622
- Type
- HOLTEK
- Minimum package
- 250 托盘
Technical parameters
- Electronic Component
- 1/4
- Electronic Component
- Electronic Component
- Electronic Component
- HOLTEK(Holtek / Holtek)
- Electronic Component
- HT1622
- Electronic Component
- 1
- Package
- LQFP-64(7x7)
- Electronic Component
- LCDDriver
- Electronic Component
- 1.214g
- Frequency
- 32kHz
- Electronic Component
- 1/8
- Electronic Component
- 1
- Features
- Integrated; Built-in Oscillator
- Electronic Component
- BM0228787396
- Operating Voltage
- 2.7V~5.2V
- Operating Current
- 80uA
- Interface Type
- 3 Interface
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HT1622 产品概述
一、产品概述
HT1622 是台湾合泰（HOLTEK / 盛群）推出的一款低功耗 LCD 驱动器，适用于中小尺寸点阵和段式显示系统。芯片集成升压电路与振荡器，支持 2.7V～5.2V 宽工作电压范围，提供稳定的驱动电压，简化外部电源设计，适合便携式与电池供电产品。
二、主要技术参数
- 工作电压：2.7V ～ 5.2V
- 接口类型：3 线串行接口（简洁的 MCU 通讯）
- 占空比（Duty）：1/8
- 偏压（Bias）：1/4
- 显示配置：32 × 8 bit（可驱动 32 列 × 8 行的点阵/段位）
- 工作电流：约 80 μA（工作态低功耗）
- 静态电流：约 1 μA（待机极低漏电）
- 振荡频率：32 kHz（内置振荡器）
- 功能特性：集成升压电路，内置振荡器
三、主要特性与功能
HT1622 将 LCD 驱动与高压生成模块集成在单芯片内，减少外围电路数目。内置 32kHz 振荡器可直接提供系统时钟并驱动 LCOSC，3 线串行接口（通常为 CS/CLK/DIN）便于与常见 MCU 连接。占空比 1/8、偏压 1/4 的组合适配多种常见玻璃基板与液晶模块，兼顾对比度与功耗。
四、典型应用场景
- 便携式仪表与手持设备（手表、测量仪、遥控器）
- 家用小电器面板显示（微波炉、秤、温控器）
- 医疗或工业小型显示终端，需要低功耗与稳定显示的场合
五、设计注意事项与接口建议
- 供电与滤波：虽集成升压电路，仍建议在 VCC、VOUT 周围加入去耦电容，抑制开关噪声。
- 显示驱动：根据 LCD 模组要求调整驱动频率与偏压以优化对比度；占空比 1/8 与偏压 1/4 为常用组合。
- 通讯时序：3 线串行接口时序需严格按照 HT1622 规定操作，避免误写或显示错位。
- 省电模式：利用芯片低静态电流特性，在不显示或休眠时进入低功耗模式以延长电池寿命。
六、封装与选型建议
HT1622 常见封装为 LQFP-64（7 × 7 mm），适合表面贴装生产。选型时注意匹配所用 LCD 的段/位数与偏压要求，并确认所需外围电容与电感（如有）规格，确保升压电路稳定输出。对于对电磁兼容或极低噪声有特殊要求的设计，可考虑在布局上优化电源与地平面。
总体而言，HT1622 以其集成度高、低功耗与简单接口，适合需节省 BOM、提升可靠性的中小型 LCD 显示方案。
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