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參數(shù)資料
| 型號(hào)： | LX1882EVALKIT |
| 英文描述： | Charge Pump |
| 中文描述： | 電荷泵 |
| 文件頁(yè)數(shù)： | 2/13頁(yè) |
| 文件大?。?/td> | 309K |
| 代理商： | LX1882EVALKIT |
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Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
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
A B S O L U T E M A X I M U M R A T I N G S
V
IN
to GND.....................................................................................................-0.3V to 5V
V
OUT
Voltage..................................................................................................-0.3V to 6V
CPO to Ground...........................................................................................................10V
SHDN
, FILT, FB Voltage to Ground...........................................-0.3V to (VIN + 0.3V)
V
OUT
Short –Circuit Duration............................................................................ Indefinite
I
OUT
..........................................................................................................................90mA
Operating Temperature Range
Commercial................................................................................................... 0°C to 70°C
Storage Temperature ................................................................................-65°C to 150°C
Lead Temperature (Soldering 10sec).......................................................................300°C
Maximum Junction Temperature.............................................................................125°C
Note:
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.
Currents are positive into, negative out of specified terminal.
T H E R M A L D A T A
DM
T
HERMAL
R
ESISTANCE
-J
UNCTION TO
A
MBIENT
,
θ
JA
T
HERMAL
R
ESISTANCE
-J
UNCTION TO
C
ASE
,
θ
JC
Plastic 8-Pin SOIC
163°C/W
38°C/W
DU
T
HERMAL
R
ESISTANCE
-J
UNCTION TO
A
MBIENT
,
θ
JA
T
HERMAL
R
ESISTANCE
-J
UNCTION TO
C
ASE
,
θ
JC
Plastic 8-Pin MSOP
206°C/W
39°C/W
Junction Temperature Calculation: T
J
= T
A
+ (P
D
x
θ
JA
).
The
θ
JA
numbers are guidelines for the thermal performance of the device/pc-board system. All
of the above assume no ambient airflow.
P A C K A G E P I N O U T
V
OUT
SHDN
FB
GND
C
+
V
IN
C
-
CPO
1
2
3
4
5
6
7
8
_______
DM P
ACKAGE
(Top View)
CPO
C
-
FB
V
IN
V
______
GND
SHDN
1
2
3
4
5
6
7
8
C
+
DU P
ACKAGE
(Top View)
F U N C T I O N A L P I N D E S C R I P T I O N
P
IN
N
AME
P
IN
#
D
ES CRIPT ION
V
OUT
1
Regulated Output Voltage. It is recommended to bypass V
OUT
with a low ESR capacitor (> 2μF) placed as close
to the pin as possible for best performance. For the adjustable version, the output voltage range is 2.5V to 5.5V.
Shutdown Pin. The LX1882 is in shutdown mode when a logic low is applied to this pin. Inversely, a logic high
applied to this pin enables the device. When in shutdown mode, the charge pump output is disconnected from V
IN
(CPO will be high impedance) and V
OUT
is connected to ground through an internal 100
switch.
Adjustable Version Only. The output voltage can be set by two resistors with the following relationship: V
OUT
=
FB * (1+ (R
1
/R
2
)) where R
1
is the resistor connected between V
OUT
and FB, and R
2
is the resistor connected
between FB and GND (see figure 3 on page 6).
Fixed Version Only. Filter pin for internal voltage reference. Typically a 1nF capacitor is connected from FILT to
GND.
System Ground.
Flying Capacitor Negative Input.
Input Voltage. The input voltage range is 1.8V to 4.4V for the LX1882-00 and 2V to 4.4V for the LX1882-33.
V
IN
should be bypassed with a > 2μF low ESR capacitor placed as close to the pin as possible for best
performance. A minimum capacitance value of 0.1μF is required.
Flying Capacitor Positive Input.
Charge Pump Output Voltage. CPO is approximately 1.95(V
IN
) at low loads. CPO should be bypassed with a low
ESR capacitor (>2μF).
SHDN
2
FB
3
FILT
3
GND
C
-
4
5
V
IN
6
C
+
7
CPO
8
P
A
C
K
A
G
E
D
A
T
A
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| LX18-P127-5 | 功能描述:大功率LED - 白色 Warm White, 2700K 80lm, 350mA RoHS:否 制造商:Cree, Inc. 照明顏色:Cool White 顏色溫度:5000 K 光通量:280 lm 顯示角:125 deg 正向電流:700 mA 正向電壓:2.9 V 安裝風(fēng)格:SMD/SMT 系列:XMLBWW 封裝:Reel |
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| LX18-P130-5 | 功能描述:大功率LED - 白色 Warm White, 3000K 85lm, 350mA RoHS:否 制造商:Cree, Inc. 照明顏色:Cool White 顏色溫度:5000 K 光通量:280 lm 顯示角:125 deg 正向電流:700 mA 正向電壓:2.9 V 安裝風(fēng)格:SMD/SMT 系列:XMLBWW 封裝:Reel |
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