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參數(shù)資料
| 型號： | LX1882-00CDU |
| 英文描述： | Charge Pump |
| 中文描述： | 電荷泵 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大小： | 309K |
| 代理商： | LX1882-00CDU |
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
Copyright
2000
Rev. 1.0c, 2002-08-01
W
M
.
C
LX1882
Charge Pump Doubler with Linear Regulator
P
RODUCTION
D
ATA
S
HEET
I N T E G R A T E D P R O D U C T S
E V A L U A T I O N B O A R D
Figure 4
.
LX1882 LED Driver Evaluation Board (Top View)
Figure 5
.
LX1882 LED Driver Evaluation Board (Bottom View)
Table 1: Input and Output Pin Assignments
Pin Name
Description
VIN
Input Voltage Test Point. Use this pin to monitor the input voltage.
Output Voltage Test Point. Use this pin to monitor output voltage. Output Voltage is determined using the following
equation: V
OUT
= V
FB
[1 + (R
1
/R
2
)] – V
SET
(R
1
/R
2
); where V
SET
= I
LED
(R
3
) and V
FB
= 1.175V (see Figure 6).
Feedback Pin Test Point. Use this pin to monitor feedback voltage. Min = 1.150V, Typical = 1.175V, Max = 1.20V.
Charge Pump Output Test Point. Use this pin to monitor the charge pump output or connect an external load to this
pin for the charge pump to drive. Note: Maximum output current available is reduced by the amount of current
drawn from the CPO pin.
Shutdown Test Point. Use this pin to monitor operating status of device. Logic HIGH = enabled; Logic LOW =
shutdown mode (see Table 2 below).
System Ground Test Points.
External DC Input Voltage. Apply a 1.8V to 4.4V input to this pin when switch “VCC” is set to “EXT”. . Clip the
positive lead of the external power supply to the pin of the 2-pin header labeled “External VCC +”. Clip the negative
lead of the external power supply to the pin of the 2-pin header labeled “External VCC –“.
VOUT
FB
CPO
SHDN
GND
External VCC
Table 2: Switch Position Assignments
Switch Name
Functional Description
VCC EXT
Use this position when powering the board from an external power supply.
VCC BAT
Use this position when powering the board using “AA” batteries. Three “AA” batteries can be installed
via battery clips located on the back of the board.
SHDN
ENABLE
Use this position to enable the LX1882.
SHDN
DISABLE
Use this position to disable the LX1882.
E
V
A
L
U
A
T
I
O
N
B
O
A
R
D
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LX1882-00CDU-TR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Charge Pump Doubler with Linear Regulator |
| LX1882-03 EVAL KIT | 制造商:Microsemi Corporation 功能描述:CHARGE PUMP - Bulk |
| LX1882-33CDM | 功能描述:IC REG SWITCHED CAP DBL 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應商設備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| LX1882-33CDM-TR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Charge Pump Doubler with Linear Regulator |
| LX1882-33CDU | 功能描述:IC REG SWITCHED CAP DBL 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應商設備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
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