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MAX1582YETC+ PDF预览

MAX1582YETC+

更新时间： 2024-09-15 19:20:07
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关
页数 文件大小 规格书
10页 242K
描述
Switching Regulator, Current-mode, 0.95A, 1300kHz Switching Freq-Max, BICMOS, PQCC12, 4 X 4 MM, 0.8 MM HEIGHT, LEAD FREE, MO-220-WGGB, TQFN-12

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MAX1582YETC+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN,针数：12
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.65
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：2.6 V标称输入电压：3 V
JESD-30 代码：S-PQCC-N12JESD-609代码：e3
长度：4 mm湿度敏感等级：1
功能数量：1端子数量：12
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.95 A封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES切换器配置：BOOST
最大切换频率：1300 kHz技术：BICMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.8 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

MAX1582YETC+ 数据手册

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19-2783; Rev 2; 8/05  
High-Efficiency Step-Up Converters  
for White LED Main and Subdisplay Backlighting  
General Description  
Features  
♦ Accurate Current Regulation for Uniform  
The MAX1582/MAX1582Y drive up to six white LEDs in  
series with a constant current to provide display back-  
lighting for two (main and sub-) displays in cell phones  
and other handheld devices. This configuration elimi-  
nates the need for ballast resistors and expensive fac-  
tory calibration. The proprietary dual-output, step-up  
pulse-width modulation (PWM) converter includes a low  
Illumination  
♦ Lights Up Two LED Sections for Main and  
Subdisplays  
♦ Up to 84% Efficiency  
♦ Internal High-Power, 30V MOSFET  
♦ Low 15mV  
Input Ripple  
P-P  
R
n-channel MOSFET switch for high efficiency and  
DSON  
maximum battery life.  
♦ Flexible Dimming Control  
Analog DAC Controlled  
The MAX1582/MAX1582Y utilize 1MHz current-mode  
PWM control to allow small input and output capacitors  
and a small inductor, while minimizing ripple on the input  
supply and avoiding interference to sensitive circuitry in  
the equipment. Integrated overvoltage protection (27V  
for the MAX1582 and 18V for the MAX1582Y) eliminates  
the need for an external zener diode to protect the IC  
from open circuit. Flexible dimming control utilizes either  
an analog control signal or direct digital PWM control  
without external RC filtering. This also increases dimming  
accuracy at low brightness levels. The PWM dimming  
signal can be any frequency from 200Hz to 200kHz. Soft-  
start eliminates inrush current during startup.  
Direct-Digital PWM (No RC Required)  
from 200Hz to 200kHz  
♦ Overvoltage Protection to Eliminate Zener Diode  
♦ Constant 1MHz PWM Operation  
♦ Low-Profile Inductor and Capacitors  
♦ Soft-Start Eliminates Inrush Current  
♦ 2.6V to 5.5V Input  
♦ 0.01µA (typ) Shutdown Current  
♦ Tiny UCSP (2.1mm ✕ 2.1mm ✕ 0.61mm) and Thin  
QFN (4mm ✕ 4mm) Packages  
Ordering Information  
The MAX1582/MAX1582Y are available in tiny 4 ✕ 4  
chip-scale (UCSP™) and 12-pin thin QFN packages.  
TOP  
MARK  
PART  
TEMP RANGE PIN-PACKAGE  
MAX1582EBE-T -40°C to +85°C 16 UCSP-16  
MAX1582EBE+T -40°C to +85°C 16 UCSP-16  
1582EBE  
1582EBE  
Applications  
Cell Phones with One or Two Displays  
MAX1582ETC  
-40°C to +85°C 12 Thin QFN-EP* AACE  
-40°C to +85°C 12 Thin QFN-EP* AACE  
Smart Phones, Palmtops, and Wireless  
Handhelds  
MAX1582ETC+  
Other Handheld Devices with Dual Displays  
*EP = Exposed paddle.  
+Denotes lead-free package.  
UCSP is a trademark of Maxim Integrated Products, Inc.  
Ordering Information continued at end of data sheet.  
Typical Application Circuit  
Pin Configurations  
INPUT  
2.6V TO 5.5V  
22μH  
TOP VIEW  
2.2μF  
V+  
VP  
LX  
12 11 10  
+
MAX1582  
V+  
VP  
1
2
3
9
8
7
OUT2  
CS  
0.1μF  
OUT1  
ANALOG OR  
DIRECT PWM  
DIMMING  
MAIN  
DISPLAY  
2 TO 4 LEDS  
MAX1582  
MAX1582Y  
CTRL  
CTRL  
EN2  
PGND  
OUT2  
EN1  
4
5
6
SUB-  
DISPLAY  
2 TO 3 LEDS  
EN2  
COMP  
4mm x 4mm  
THIN QFN  
CS  
0.022μF  
7.5Ω  
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.  
GND  
Pin Configurations continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...10

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