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參數(shù)資料
| 型號： | TPS65562RGTTG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3 A BATTERY CHARGE CONTROLLER, PQCC16 |
| 封裝： | GREEN, PLASTIC, QFN-16 |
| 文件頁數(shù)： | 2/17頁 |
| 文件大?。?/td> | 632K |
| 代理商： | TPS65562RGTTG4 |
www.ti.com
Protections
MAX ON TIME
MAX OFF TIME
THERMAL DISABLE
OVER CURRENT SHUTDOWN
SLVS775 – JUNE 2007
PRINCIPLES OF OPERATION (continued)
Figure 8. Relationships Between F_ON and CHG
TPS65562 provides four protection mechanisms: max on time, max off time, thermal disable, and over current
shutdown.
To prevent a condition such as pulling current from a poor power source (i.e., an almost empty battery), and
never reaching peak current, the TPS65562 provides a maximum ON time function. If the ON time exceeds tMAX,
the TPS5562 is forced OFF regardless of IPEAK detection.
To prevent a condition such as never increasing the voltage at the SW pin when the internal FET is OFF, the
TPS65562 provides a maximum OFF time function. If the OFF time exceeds tMIN, the TPS65562 is forced ON
regardless of VZERO detection.
Once the die temperature of the TPS65562, reaches 160
°C, all functions stop. Once the die cools below 160°C,
the TPS65562 restarts charging if CHG remains high during the entire over temperature condition.
The TPS65562 provides an over voltage monitor function of the SW pin. The TPS65562 is latched off if the
voltage on the SW pin is above OVDS during the switch ON time (see Figure 4 and its descriptions).
This function protects against short-circuits on the primary side of the transformer. A short-circuit of the primary
side shorts the battery voltage to GND. SW pin can damage the device if not protected.
10
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| TPS65563ARGTRG4 | 功能描述:功率驅(qū)動器IC Integ Photo Flash Charger & IGBT Drvr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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| TPS65563ARGTTG4 | 功能描述:功率驅(qū)動器IC Integ Photo Flash Charger & IGBT Drvr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS65573DSSR | 功能描述:功率驅(qū)動器IC Integ Photo Flash Chrgr & IGBT Drvr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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