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參數(shù)資料
| 型號： | MC33341D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | PLASTIC, SO-8 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 374K |
| 代理商： | MC33341D |
MC33341
9
MOTOROLA ANALOG IC DEVICE DATA
RS
Load
R1
Battery or
Resistive
Load
Source
Return
Source
R2
R3
Comp
The above figure shows the MC33341 configured for source return low–side current sensing allowing a common power path
between Source + and Load +. This configuration is especially suited for negative output applications where a common ground
path, Source + to Load +, is desired. The Inverting Amplifier inputs, Pins 1 and 4, are used to sense the load induced voltage
drop that appears across resistor RS. The internal voltage and current regulation thresholds are selected by the respective
external connections of Pins 2 and 6. Resistor R3 is required in applications where high peak levels of inrush current are
possible. The resistor value should be chosen to limit the negative substrate current to less than 20 mA. Excessively large
values for R3 will degrade the current sensing accuracy.
V
I
Load
8
7
6
5
1
2
3
4
R
R
R
R
R
VCC
VCC
VCC
VCC
VCC
VCC
0.4 V
1.2 V
R
0.2 V
VCC
0.2 V
0.4 V 1.2 V
VCC
1.2 V
VCC
Inverting Amp
Transconductance
Amp
Differential Amp
Disable Logic
Differential Amp
Opto
Isolator
Vsen
Vth
Isen
Ith
Reference
Figure 15. Source Return Low–Side Current Sensing with
Internally Fixed Current and Voltage Thresholds
Vreg
Vth(V)
R2
R1
1
1.2
R2
R1
1
Ireg
Vth(I LS–)
RS
–0.2
RS
R3
IpkRS
– 0.6
0.02
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33341DG | 功能描述:電池管理 2.3-15V Power Supply Charger w/Regulation RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MC33341DR2 | 功能描述:電池管理 2.3-15V Power Supply RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MC33341DR2G | 功能描述:電池管理 2.3-15V Power Supply Charger w/Regulation RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MC33341P | 功能描述:電池管理 2.3-15V Power Supply RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MC33341PG | 功能描述:電池管理 2.3-15V Power Supply Charger w/Regulation RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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