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| 型號： | MP1011EMA |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | Cold Cathode Fluorescent Lamp Driver |
| 中文描述： | 冷陰極燈管驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 136K |
| 代理商： | MP1011EMA |
MP1011A
Cold Cathode Fluorescent Lamp Driver
MPS, Inc 3777 Stevens Creek Blvd.
Suite 400 Santa Clara, 95051-7364 USA
Tel (408) 243-0088, Fax (408) 243-0099
www.monolithicpower.com
Revision 1.7
April, 2001
3
Pin Description
Pin #
1
2
3
Pin Name
Bright
I sense
Burst
Pin Function
Dimming Control: 0 volts is full Dim and 2V is full brightness
Lamp current feedback sense input.
To use for burst mode, the pin is switched between 0V and 5V
When not using burst mode, then pin must be tied to ground.
The enable will turn the chip on/off. Do not float this pin.
Internally generated MOSFET gate drive supply voltage
Power Supply input
Output to Load ( tank circuit )
No Connect
Power Ground
Regulated output voltage for boost cap on phase L
Regulated output voltage for boost cap on phase R
Power Ground
No Connect
Output to Load ( tank circuit )
Power Supply input
Internally connected to Vdr (pin 5). This pin must be left open.
Reference voltage output
Loop compensation cap
Latching shutdown for open lamp or low battery
Small signal ground
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Functional Block Diagram:
Enable
Vdr
Vcc
OutL
NC
PGND
BstL
BstR
PGND
NC
OutR
Vcc
Vdr
Vref
Comp
Open lamp
AGND
.
AGND
VccL
BstR
Comp
A
.
Vr
-
Driver
Mp3
Isense
CbstR
Enable
.
VdrR
A2
OutL
Mn1
CbstL
Mn2
-
.
Control
Logic
C1
Vref
A
Current
Sensing
Driver
5.1 Volt
Regulator
Mp1
BstL
Bright
VdrL
Driver
Driver
Vcc
6.2 Volt
Regulator
.
.
.
Vcc
OutR
+
.
A1
Rsense
Ton
PGND
+
-
+
CT
PGND
Burst
Mp2
VccR
Thermal
Shutdown
Open Lamp
.
Vr
.
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