TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

电流精度为 ±10%、具备可调节输入电流限制的 3.5MHz、1.5A、效率为 92% 的升压转换器

TPS61251器件可以为由 3 节镍镉或镍氢电池或者单节锂离子或锂聚合物电池供电的产品提供电源解决方案。输入电压范围很宽，非常适合为手机、固态硬盘 (SSD) 和无线调制解调器等便携式 应用 供电。该转换器适合为大电容器（法拉范围）充电，支持备用电池 应用。在电容器充电过程中，TPS61251 器件作为恒流源工作，直到输出电压达到编程值。可通过外部电阻器 RILIM 对充电电流进行编程，并针对 500mA 平均输入电流限制提供 ±10% 的精度。 中增加了“500mA 平均输入电流限制的精度为 ±10%”\n\n将 TPS61251 器件与充电电容器结合使用，使转换器能够提供 • 电阻可编程输入电流限制 \n• 电流为 500mA 时，在整个温度范围内电流精度为 ±10%\n• 可编程电流：100mA 至 1500mA\n \n• 睡眠模式仅消耗 2µA（典型值）的静态电流\n• 适用于为大电容器充电（值在法拉范围内）\n• 效率高达 92%\n• 电源正常指示即使在关断状态下的输出电压电平仍处于正常水平\n• 输入电压范围为 2.3V 至 6V\n• 可调节输出电压高达 6.5V\n• 输入电压大于输出电压时为 100% 占空比模式\n• 负载断开和反向电流保护\n• 短路保护\n• 典型工作频率：3.5MHz\n• 采用 2 × 2mm ;

BOOST CONVERTER FOR BATTERY BACKUP CHARGING WITH ADJUSTABLE CONSTANT CURRENT AND SNOOZE MODE

文件：426.69 Kbytes Page：21 Pages

丝印代码：QTH；TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

丝印代码：QTH；TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

丝印代码：QTH；TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

丝印代码：QTH；TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

丝印代码：QTH；TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

丝印代码：QTH；TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

1 Features 1• Resistor Programmable Input Current Limit – ±10% Current accuracy at 500 mA over full temperature range – Programmable from 100 mA up to 1500 mA • Snooze mode draws only 2 μA (typical) quiescent current • Designed to charge large capacitor values in the Farad range • Up

TPS61251 Boost Converter for Battery Backup Charging With Adjustable Constant Current and Snooze Mode

文件：424.01 Kbytes Page：24 Pages

BOOST CONVERTER FOR BATTERY BACKUP CHARGING WITH ADJUSTABLE CONSTANT CURRENT AND SNOOZE MODE

文件：426.69 Kbytes Page：21 Pages

BOOST CONVERTER FOR BATTERY BACKUP CHARGING WITH ADJUSTABLE CONSTANT CURRENT AND SNOOZE MODE

文件：426.69 Kbytes Page：21 Pages

封装/外壳：8-WFDFN 裸露焊盘 包装：托盘 描述：IC BOOST CONV ADJ 1.5A 8WSON 集成电路（IC） 电源管理 - 专用

包装：盒 描述：EVAL MODULE FOR TPS61251-517 开发板，套件，编程器 评估板 - DC/DC 与 AC/DC（离线）SMPS

丝印代码：61251；Multifunction Single-phase Full-wave Fan Motor Driver

General Description BD61251FV is pre-driver IC to drive single phase H bridge output composed of external MOS FET. It incorporates various functions such as speed controllable by PWM, PWM soft switching, Input / output duty slope adjustment. Features  Pre Driver for External Power MOS FE

Single-chip NTSC TV signal processor

文件：298.72 Kbytes Page：16 Pages