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參數(shù)資料
| 型號： | ML4854 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Adjustable, Low-Current, 2-Cell Boost Regulator with Shutdown and Low Battery Detect |
| 中文描述： | 可調(diào)，低電流，2節(jié)電池升壓關(guān)機(jī)和低電池檢測穩(wěn)壓器 |
| 文件頁數(shù)： | 2/13頁 |
| 文件大?。?/td> | 133K |
| 代理商： | ML4854 |
PRODUCT SPECIFICATION
ML4854
2
REV. 1.0.7 5/6/03
Pin Configuration
Pin Description
Absolute Maximum Ratings
Absolute maximum ratings are those values, beyond which the device could be permanently damaged. Absolute maximum
ratings are stress ratings only and functional device operation is not implied.
PIN
1
NAME
V
FUNCTION
IN
Battery Input Voltage
power from V
Shut Down
Low-Battery Input
Low-Battery Output
voltage falls below its targeted value. The open-drain output can be used to reset a
microcontroller.
Programming Feedback Pin
. Sets the output voltage. This pin is used to adjust the output
voltage via a resistive divider from V
OUT
.
Boost regulator output
. Output voltage can be set to be in the 3 to 5V range. Startup at
moderate load is achievable at input voltages around 1.25V.
Boost inductor connection
. An inductor is connected between this pin and V
the output supply, this pin pulls low, charging the inductor, then shuts off dumping the energy
through the synchronous rectifier to the output.
Ground of the IC
.
. Supplies the IC during start-up. After the output is running, the IC draws
OUT
. Pulling this pin low shuts down the regulator, isolating the load from the input.
. Pulling this pin below a threshold causes the LBO pin to go low.
. This pin provides an active low signal to alert the user when the LBI
.
2
3
4
SHDN
LBI
LBO
5
FB
6
V
OUT
7
V
L
IN
. When servicing
8
GND
Parameter
V
IN
,
V
Switch Voltage (V
Voltage on any other Pin
Peak Switch Current (Ipeak)
Output Current (I
Continuous Power Dissipation
Thermal Resistance (
Junction Temperature
Storage Temperature Range
Lead Temperature (soldering, 10s)
Min.
-0.3
-0.3
-0.3
Max.
7
Units
V
V
V
OUT
Voltages (Relative to GND)
to GND)
L
V
V
OUT
+0.3
OUT
+0.3
— Internally Limited —
500
320
124
150
+165
OUT
)
mA
mW
°C/W
°C
°C
°C
θ
JA
)
-65
V
IN
GND
V
L
V
OUT
FB
1
2
3
4
8
7
TOP VIEW
8-Lead TSSOP (T08)
6
5
SHDN
LBI
LB0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4854IT | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ML4854ITX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ML485-G | 功能描述:射頻混合器 1.6-3.2 GHz High IP3 Mixer w/ Int LO Amp RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ML485-PCB | 功能描述:射頻開發(fā)工具 ML485 1.6-3.2GHz Eval Brd Active Mxr RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| ML485TRG | 制造商:TriQuint Semiconductor 功能描述:RF MIXER |
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