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參數資料
| 型號： | MAX1913 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 60mA 1.5x High-Efficiency White LED Charge Pumps |
| 中文描述： | 60mA的1.5倍高效率白光LED電荷泵 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 275K |
| 代理商： | MAX1913 |
General Description
The MAX1912/MAX1913* power LEDs with a regulated
output voltage or current (up to 60mA) from an unregu-
lated input supply (2.7V to 5.3V). These are complete
DC-DC converters requiring only four small ceramic
capacitors and no inductors. Input ripple is minimized
by a unique regulation scheme that maintains a fixed
750kHz switching frequency over a wide load range.
Also included are logic-level shutdown and soft-start to
reduce input current surges at startup.
The MAX1912 has a reduced feedback (SET) threshold
of 200mV for minimum loss when operating as a current
source. The MAX1913 has a 1.25V SET threshold for
best accuracy in voltage-feedback applications.
Connecting SET to IN on the MAX1913 selects a preset
5.0V output voltage. Contact factory for current-sense
thresholds other than 200mV or preset output voltages
other than 5.0V
Applications
Backlight White LED Biasing
Cellular Phones
PDAs
Digital Still Cameras
MP3 Players
Backup-Battery Boost Converters
Features
o
High-Efficiency 1.5x Charge Pumps
o
Low Input Ripple with 750kHz Operation
o
200mV Current-Sense Threshold Reduces
Power Loss
o
Current- or Voltage-Regulated Charge Pump
o
60mA Output Current
o
No Inductors Required
o
Small Ceramic Capacitors
o
Regulated ±3% Output Voltage
o
Load Disconnected in Shutdown
o
1μA Shutdown Current
o
Small 10-Pin μMAX Package
M
60mA 1.5x High-Efficiency White LED
Charge Pumps
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
1
2
3
4
5
10
9
8
7
6
SET
C1-
IN2
C2+
C1+
C2-
IN1
GND
MAX1912/
MAX1913
10-PIN
μ
MAX
TOP VIEW
OUT
SHDN
Pin Configuration
19-2290; Rev 0; 1/02
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
10 μMAX
10 μMAX
MAX1912
EUB
MAX1913
EUB50*
Selector Guide
PART
MODE
1.5x
1.5x
V
SET
200mV
1.25V
V
OUT
MAX1912
EUB
MAX1913
EUB50*
*
Future product—contact factory for availability.
Adjustable Current
5.0V or Adjustable
V
IN
C
IN
C1
C2
C
OUT
IN1
IN2
C1+
C1-
C2+
C2-
GND
SET
OUT
SHDN
MAX1912
Typical Operating Circuit
*
Future product—contact factory for availability.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1916EZT | 制造商:Maxim Integrated Products 功能描述:LOW-DROPOUT CONSTANT-CURRENT TRIPLE WHITE LED BIAS SUPPLY - Rail/Tube |
| MAX1916EZT+ | 制造商:Maxim Integrated Products 功能描述:CONSTANT-CURRENT TRIPLE WHITE LED BIAS 制造商:Maxim Integrated Products 功能描述:LED DRVR 3SEGMENT 2.5V TO 5.5V 6PIN SOT-23 - Rail/Tube |
| MAX1916EZT+T | 功能描述:LED照明驅動器 Triple White LED Bias Supply 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 |
| MAX1916EZT-T | 功能描述:LED照明驅動器 Triple White LED Bias Supply 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 |
| MAX1917EEE | 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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