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HOLTEK HT7K1201
Configuration
1 options
Configuration
26+
Availability on request
Technical data
Product details
19
specifications
Core information
- Product name
- HOLTEK(Holtek / Holtek) HT7K1201
- Type
- HOLTEK
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOLTEK(Holtek / Holtek)
- Electronic Component
- HT7K1201
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- Brushed DC Motor Driver IC
- Electronic Component
- 0.047g
- Electronic Component
- 1
- Integrated FET
- Electronic Component
- H
- 1
- Features
- Current Sampling /; Motor
- Electronic Component
- BM0000631802
- Resistor
- 500mΩ
- Current
- 1.3A
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.8V~6V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HT7K1201 产品概述
一、产品简介
HT7K1201 是 HOLTEK（台湾合泰/盛群）推出的一款集成 FET 的单通道 H 桥驱动芯片，封装为 SOT-23-6，工作电压范围宽（1.8V–6V），适用于便携式与电池供电的小功率直流电机及惯性负载驱动。器件工作温度范围为 -40℃ 到 +85℃，静态电流仅 800μA，适合低功耗系统长时间待机使用；峰值电流能力可达 1.3A，用于短时冲击或突发负载。
二、主要性能参数
- 工作温度：-40℃ ～ +85℃
- 工作电压：1.8V ～ 6V，兼容 1.8V 低压 MCU 及常见 3.3V/5V 系统
- 峰值电流：1.3A（短时脉冲）
- 导通电阻（Rds(on)）：约 500mΩ（单路）
- 静态电流（Iq）：800μA，低待机损耗
- H 桥数量：1（单路双向驱动）
- 集成 FET：是（简化外部功率器件设计）
- 封装：SOT-23-6，适合空间受限应用
三、典型应用场景
- 手机/可穿戴设备的振动马达驱动
- 小型玩具电机、微型风扇、摄像头模组的对位/对焦驱动
- 便携电器与 IoT 终端的小功率执行器
- 需双向控制且受限于 PCB 空间的驱动场合
四、设计与使用要点
- 热限与持续电流：峰值 1.3A 为短脉冲能力，持续电流受封装与 PCB 散热限制。建议按 P = I^2·Rds(on) 估算导通损耗，并结合 PCB 铜箔散热进行热预算；在 500mA~1A 区间需注意温升。
- 电源布线：在电源引脚附近放置 1μF～10μF 低 ESR 去耦电容，靠近器件焊盘，以抑制瞬态电流和电压尖峰。
- 感性负载保护：器件内部含体二极管，但对强感性或高能量反冲建议并联吸收网络（RC 抑制、TVS）以保护电源与器件。
- PWM 驱动：支持 PWM 控制实现速度或力矩调节。常用 PWM 频率为几 kHz 到几十 kHz，频率选择需平衡开关损耗与噪声（高频会增加切换损耗）。
- 接口兼容性：逻辑阈值随 Vcc 变化，适配 1.8V/3.3V/5V MCU 前需确认输入阈值和上/下拉要求。
- 布局建议：SOT-23-6 封装散热依赖 PCB，增大铜箔面积和加多通孔可改善散热；把电源回路短化、将感性负载线远离敏感模拟线。
五、封装与选型建议
SOT-23-6 小外形适合空间受限设计，但散热能力有限。若设计中存在长时间高电流工况，建议选用更大封装或增加外部 MOSFET。HT7K1201 更适合短时冲击或中小电流的双向驱动场合，如振动马达、小型直流电机等。选型时请结合系统的连续电流需求、PWM 工作占空比与 PCB 散热能力进行验证测试。
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