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參數資料
| 型號： | MAX8596X |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual 4-Line To 1-Line Data Selectors/Multiplexers 20-LCCC -55 to 125 |
| 中文描述： | 高效率、36V、升壓型變換器，提供TA降額工作，可驅動2至9個白光LED |
| 文件頁數： | 1/8頁 |
| 文件大小： | 229K |
| 代理商： | MAX8596X |
General Description
The MAX8595X/MAX8596X drive up to nine white LEDs
with constant current and high efficiency to provide
LCD backlighting in cell phones, PDAs, and other
handheld devices. The series connection allows the
LED currents to be identical for uniform brightness and
minimizes the number of traces to the LEDs. The
MAX8595X regulates constant LED current over the
entire temperature range. The MAX8596X features an
ambient-temperature derating function to avoid over-
driving the white LEDs during high ambient tempera-
tures, enabling higher drive current below +42°C.
A single Dual Mode input provides a simple means of
brightness adjustment and on/off control. Fast 1MHz
current-mode PWM operation allows for small input and
output capacitors and a small inductor while minimizing
ripple on the input supply/battery. Soft-start eliminates
inrush current during startup.
The MAX8595X/MAX8596X are available in a space-
saving, 8-pin, 3mm x 3mm TDFN package.
Applications
Cell Phones and Smart Phones
PDAs, Palmtops, and Wireless Handhelds
e-Books and Subnotebooks
White LED Display Backlighting
Features
Up to Nine LEDs at 25mA
Temperature Derating Function to Allow Fewer
LEDs for Same Light (MAX8596X)
86% Efficiency (P
LEDs
/ P
IN
)
1.7% Current-Regulation Accuracy
Output Overvoltage Protection
Flexible Dimming Control
Analog
Direct-PWM Internal Filter
1MHz PWM Switching Frequency
0.1μF Output Capacitor
12mV
P-P
Low Input Ripple
Soft-Start Eliminates Inrush Current
2.6V to 5.5V Input Range
0.3μA Shutdown Current
Pin Compatible with the MAX1561 and MAX1599
TDFN 3mm x 3mm x 0.8mm Package with
Exposed Paddle
M
High-Efficiency, 36V Step-Up Converters
with T
A
Derating Option for 2 to 9 White LEDs
________________________________________________________________
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
G
C
C
1
2
L
P
I
C
O
TOP VIEW
3
4
MAX8595X
MAX8596X
8
7
6
5
TDFN
3mm x 3mm x 0.8mm
Pin Configuration
Ordering Information
MAX8595X
MAX8596X
IN
LX
OUT
PGND
CS
CTRL
COMP
GND
0.1
μ
F
2 TO 9 LEDs
200Hz TO 200kHz
ANALOG OR
PWM DIMMING
2.2
μ
F
INPUT
2.6V TO 5.5V
OUTPUT
UP TO 38V
Typical Operating Circuit
19-3485; Rev 0; 11/04
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE PIN-PACKAGE
PKG
CODE
MAX8595X
ETA -40
°
C to +85
°
C 8 TDFN 3mm x 3mm T833-1
MAX8596X
ETA* -40
°
C to +85
°
C 8 TDFN 3mm x 3mm T833-1
*
Future product—contact factory for availability.
Dual Mode is a trademark of Maxim Integrated Products, Inc.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX8596XETA+ | 制造商:Maxim Integrated Products 功能描述:LED DRVR 9SEGMENT 2.6V TO 6V 8TDFN EP - Rail/Tube |
| MAX8596XETA+T | 功能描述:LED照明驅動器 36V Step-Up Converter 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 |
| MAX8596XETA-T | 功能描述:LED照明驅動器 36V Step-Up Converter 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 |
| MAX8596YETA+ | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY 32V STEP-UP CONVER - Rail/Tube |
| MAX8596YETA+T | 功能描述:LED照明驅動器 36V Step-Up Converter 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 |
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