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参数资料
| 型号： | TPS61027DRCR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.8 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件页数： | 6/29页 |
| 文件大小： | 746K |
| 代理商： | TPS61027DRCR |
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Low-EMI Switch
SLVS451D – SEPTEMBER 2003 – REVISED FEBRUARY 2006
The battery voltage, at which the detection circuit switches, can be programmed with a resistive divider
connected to the LBI pin. The resistive divider scales down the battery voltage to a voltage level of 500 mV,
which is then compared to the LBI threshold voltage. The LBI pin has a built-in hysteresis of 10 mV. See the
application section for more details about the programming of the LBI threshold. If the low-battery detection
circuit is not used, the LBI pin should be connected to GND (or to VBAT) and the LBO pin can be left
unconnected. Do not let the LBI pin float.
The device integrates a circuit that removes the ringing that typically appears on the SW node when the
converter enters discontinuous current mode. In this case, the current through the inductor ramps to zero and the
rectifying PMOS switch is turned off to prevent a reverse current flowing from the output capacitors back to the
battery. Due to the remaining energy that is stored in parasitic components of the semiconductor and the
inductor, a ringing on the SW pin is induced. The integrated antiringing switch clamps this voltage to VBAT and
therefore dampens ringing.
14
Copyright 2003–2006, Texas Instruments Incorporated
相关PDF资料 |
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| TPS61026DRC | 2.1 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61020DRCR | 1.8 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61029DRCR | 2.1 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61027DRC | 1.8 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61029DRC | 2.1 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61027DRCR | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
| TPS61027DRCRG4 | 功能描述:直流/直流开关调节器 5-V Otp 1.5-A Swit Boost Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61027DRCRSY | 功能描述:直流/直流开关调节器 5V Out 1.5A Sw 96% Eff Boost Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61028 | 制造商:TI 制造商全称:Texas Instruments 功能描述:96% EFFICIENT SYNCHRONOUS BOOST CONVERTER |
| TPS61028DRC | 制造商:TI 制造商全称:Texas Instruments 功能描述:96% EFFICIENT SYNCHRONOUS BOOST CONVERTER |
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