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參數(shù)資料
| 型號： | TPS65562RGT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, PQCC16 |
| 封裝： | PLASTIC, QFN-16 |
| 文件頁數(shù)： | 16/16頁 |
| 文件大小： | 534K |
| 代理商： | TPS65562RGT |
www.ti.com
T
OFF
N
TURN
L
I
PEAK
V
OUT
=
(2)
Programming Peak Current
IGBT Driver Control
SLVS775 – JUNE 2007
PRINCIPLES OF OPERATION (continued)
The TPS65562 provides a method to program the peak primary current with a voltage applied to the I_PEAK
The I_PEAK input is treated as a logic input below VPKL (0.6 V) and above VPKH (2.4 V). Between VPKL and VPKH,
I_PEAK input is treated as an analog input. Using this characteristic, IPEAK can be set by a logic signal or by an
analog input.
Typical usages of this function are:
1. Setting the peak charging currents based on the battery voltage. Larger IPEAK for a fully charged battery
and lower IPEAK for a discharged battery.
2. Reducing IPEAK when powering a zooming lens motor. This avoids inadvertent shutdowns due to large
current from the battery.
In Figure 1, three optional connections to I_PEAK are shown.
1. Use the controller to treat I_PEAK as the logic input pin. This option is the easiest.
2. Use a D/A converter to force IPEAK to follow analog information, such as battery voltage.
3. Use an analog circuit to achieve the same results as the D/A converter.
Figure 7. I_PEAK vs ISW
The IGBT driver is provided by the TPS65562. The driver voltage depends on VCC. TPS65562 has a mask filter
as shown in Figure 8. The mask does not have hysteresis; therefore, there is no wait time from CHG forcing Low
after FULL CHARGE to F_ON turning High.
9
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| TPS65562RGTRG4 | 功能描述:功率驅(qū)動器IC Photo flash charger w/ IGBT driver 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 |
| TPS65562RGTT | 功能描述:功率驅(qū)動器IC Integr 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 |
| TPS65562RGTTG4 | 功能描述:功率驅(qū)動器IC Photo flash charger w/ IGBT driver 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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