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參數資料
| 型號： | MP1529 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | Fixed Frequency Step-Up Converter LCD Backlight Plus Flash |
| 中文描述： | 固定頻率升壓轉換器液晶背光加閃光 |
| 文件頁數： | 3/11頁 |
| 文件大?。?/td> | 312K |
| 代理商： | MP1529 |
MP1529 – FIXED FREQUENCY STEP-UP CONVERTER LCD BACKLIGHT PLUS FLASH
MP1529 Rev. 1.0
11/23/2005
www.MonolithicPower.com
3
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2005 MPS. All Rights Reserved.
TM
ELECTRICAL CHARACTERISTICS
(continued)
V
IN
= 3.6V, T
A
= +25
°
C, unless otherwise noted.
Parameter
Current Sense to COMP
Transconductance
Oscillation Frequency
SW Maximum Duty Cycle
EN1, EN2 High Voltage
EN1, EN2 Low Voltage
EN1, EN2 Turn-Off Delay to
Shutdown
(4)
EN1 PWM Frequency
(4)
Soft-Start Period
(4)
Thermal Shutdown
Symbol Condition
Min
Typ
Max
Units
I
C
=
±
10
μ
A
200
μ
A/V
1.0
0.3
1.2
95
1.4
1.4
MHz
%
V
V
C
SS
= 16nF
10
ms
C
SS
= 16nF
C
SS
= 16nF
1
50
KHz
ms
°C
10
160
Note:
4) The soft-start timer and the PWM timer are the same timer with the same timing.
PIN FUNCTIONS
Pin # Name Description
1
EN1 Enable Input. See Table 1 for PWM serial interface usage. EN1 has an internal pull-down of 1.2M
.
2
EN2 Enable Input. See Table 1 for PWM serial interface usage. EN2 has an internal pull-down of 1.2M
.
Control Loop Compensation Node. COMP is the output of the internal transconductance amplifier.
Connect a series resistor-capacitor network between COMP and GND to compensate the control
loop.
4
SS
Soft-Start Capacitor Pin. Doubles as the PWM timer.
LED3 Number 3 LED String Current Control Input. Connect the bottom (Cathode) of the Number 3 LED
string to LED3. This string is the flash string.
6
GND Analog Ground. (Connect the Exposed Pad to Pin 6)
LED2 Number 2 LED String Current Control Input. Connect the bottom (Cathode) of the Number 2 LED
string to LED2. This string is the backlight string.
LED1 Number 1 LED String Current Control Input. Connect the bottom (Cathode) of the Number 1 LED
string to LED1. This string is the backlight string.
ISET1 Current Control Input. Connect a resistor between ISET1 and GND to set the backlight LED string
current up to 30mA.
ISET2 Current Control Input. Connect a resistor between ISET2 and GND to set the flash LED string
preview current up to 150mA.
ISET3 Current Control Input. Connect a resistor between ISET3 and GND to set the flash LED string current
up to 150mA.
Output Voltage Sensing Input. When the OUT pin voltage exceeds the overvoltage threshold, the
MP1529 automatically shuts down to prevent internal damage. Connect OUT to the output of the
step-up converter.
Switch Output. SW is the drain of the internal N-Channel MOSFET switch. Connect the power
inductor between SW and the input source, and connect the output rectifier between SW and the
output to form the step-up converter.
16
IN
Input Supply Pin. Must be locally bypassed.
13,15 PGND Power Ground.
3
COMP
5
7
8
9
10
11
12
OUT
14
SW
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MP1529DR | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Fixed Frequency Step-Up Converter LCD Backlight Plus Flash |
| MP1529DR-LF-P | 功能描述:LED照明驅動器 2x6 backlight 1x4 flash WLED Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MP1529DR-LF-Z | 功能描述:LED照明驅動器 2x6 backlight 1x4 flash WLED Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MP152-BP | 制造商:Micro Commercial Components (MCC) 功能描述:Diode Rectifier Bridge Single 200V 15A 4-Pin MP-50 Bulk |
| MP152W | 功能描述:橋式整流器 15A 200V LP RoHS:否 制造商:Vishay 產品:Single Phase Bridge 峰值反向電壓:1000 V 最大 RMS 反向電壓: 正向連續(xù)電流:4.5 A 最大浪涌電流:450 A 正向電壓下降:1 V 最大反向漏泄電流:10 uA 功率耗散: 最大工作溫度:+ 150 C 長度:30.3 mm 寬度:4.1 mm 高度:20.3 mm 安裝風格:Through Hole 封裝 / 箱體:SIP-4 封裝:Tube |
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