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參數(shù)資料
| 型號： | L6375D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 0.5A INDUSTRIAL INTELLIGENT POWER SWITCH |
| 中文描述： | 0.5A的工業(yè)智能功率開關(guān) |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 84K |
| 代理商： | L6375D |
L6375
6/12
Figure 1. Switching Waveforms
INPUTSECTION
An Single ended Input TTL/CMOS compatible with wide voltage range and high noise immunity (thanks to a
built in hysteresis) is available.
OVER TEMPERATURE PROTECTION(OVT)
An on-chip Over Temperature Protection provides an excellent protection of the device in extreme conditions.
Whenever the temperature - measured on a central portion of the chip- exceeds Tmax=150 C (typical value)
the device is shut off, and the DIAG2 output goes LOW. Normal operation is resumed as the chip temperature
(normally after few seconds) falls below Tmax-Thys= 130 C (typical value). The hysteresis avoid thats an inter-
mittent behaviour take place.
UNDERVOLTAGE PROTECTION (UV)
The supply voltage is expected to range from 8 to 35 V. In this range the device operates correctly. To avoid
any misfunctioning the supply voltage is continuously monitored to provide an under voltage protection. As Vs
falls below Vsth-Vshys (typically 7.5 V, see fig.1) the output power MOS is switched off and DIAG1 and DIAG2
(seeDiagnostic truth table). Normal operation isresumed as soon asVs exceeds Vsth. The hysteretic behaviour
prevents intermittent operation at low supply voltage.
OVER CURRENT OPERATION
In order to implement a short circuit protection the output power MOS is driven in linear mode to limit the output
current to the Isc (1.1A typical value). This condition (current limited to the Iscvalue) lastsfor a Ton time interval,
that can be set by means of a capacitor (Cdon) connected to the ON DELAY pin according to the following for-
mula:
Ton
= 1.28 msec/pF
for
50pF<Cdon< 2nF
After the Ton interval has expired the output power MOS is switched off for the Toff time interval with:
Toff = 64 ·Ton.
When also the Toff interval has expired, the out-put power MOS is switched ON. At this point in time two con-
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| L6375D013TR | 功能描述:功率驅(qū)動(dòng)器IC Step Down Controller 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(shí)間: 下降時(shí)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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| L6375S | 功能描述:功率驅(qū)動(dòng)器IC 0.5A Hi SideDrvr IND Inteligent Pwr Swtch 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(shí)間: 下降時(shí)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 |
| L6375STR | 功能描述:功率驅(qū)動(dòng)器IC .05a High-Side Driver Power Switch 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(shí)間: 下降時(shí)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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