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參數(shù)資料
| 型號(hào)： | MAX4945BELA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CTLR OVP W/FET 5.80V 8-UDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 過壓保護(hù)控制器 |
| 應(yīng)用： | 手機(jī)，數(shù)碼相機(jī)，媒體播放器 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WFDFN |
| 供應(yīng)商設(shè)備封裝： | 8-uDFN（2x2） |
| 包裝： | 帶卷 (TR) |
MAX4943–MAX4946/MAX4944L/MAX4945A/MAX4945L/MAX4949
ed device does not allow current to flow into OUT. The
pFET is turned off when the voltage between GP and IN
is less than the pFET gate threshold voltage.
ESD Test Conditions
ESD performance depends on a number of conditions.
The MAX4943–MAX4946/MAX4949 are specified for
±15kV (HBM) typical ESD resistance on IN when IN is
bypassed to ground with a 1F ceramic capacitor.
Human Body Model
Figure 4 shows the Human Body Model and Figure 5
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of a
100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the device through a
1.5kΩ resistor.
IEC 61000-4-2
The IEC 61000-4-2 standard covers ESD testing and
performance of finished equipment. It does not specifi-
cally refer to integrated circuits. The MAX4943–
MAX4946/MAX4949 are specified for ±15kV Air-Gap
Discharge and ±8kV Contact Discharge IEC 61000-4-2
on the IN pin when IN is bypassed to ground with a 1F
ceramic capacitor.
The major difference between tests done using the
Human Body Model and IEC 61000-4-2 is a higher peak
current in IEC 61000-4-2, due to lower series resistance.
Hence, the ESD withstand voltage measured to IEC
61000-4-2 generally is lower than that measured using the
Human Body Model. Figure 6 shows the IEC 61000-4-2
model. The Contact Discharge method connects the
probe to the device before the probe is charged. The
Air-Gap Discharge test involves approaching the device
with a charged probe.
Chip Information
PROCESS: BiCMOS
Overvoltage-Protection Controllers with
Internal FET
8
_______________________________________________________________________________________
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
Cs
150pF
RC
50M
Ω TO 100MΩ
RD
330
Ω
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
Figure 6. IEC 61000-4-2 ESD Test Model
5V AC
ADAPTER
15ms (typ)
DEBOUNCE
CHARGE
PUMP
GP
IN
OUT
ACOK
CHARGER
DC-DC
CONVERTER
VI/0
GND
TO
μC
30ms (typ)
TIMER
MAX4943–MAX4946/MAX4944L/
MAX4945L/MAX4949
1
μF
Typical Operating Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4945ELA+ | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE-PROTECTION CONTROLLERS WITH INTERNAL FET - Rail/Tube |
| MAX4945ELA+T | 功能描述:電壓監(jiān)測器/監(jiān)控器 Overvoltage-Protect Controller RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數(shù):2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準(zhǔn)確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風(fēng)格:SMD/SMT |
| MAX4945LELA+T | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Overvoltage-Protect Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX4946ELA+T | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Overvoltage-Protect Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX4947EBA+ | 制造商:Maxim Integrated Products 功能描述: |
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