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MAX1729EUB

更新时间: 2024-09-23 22:25:55
品牌 Logo 应用领域
美信 - MAXIM 稳压器开关式稳压器或控制器电源电路开关式控制器温度补偿光电二极管
页数 文件大小 规格书
12页 160K
描述
ECB and LCD Display Bias Supply with Accurate Output Voltage and Temperature Compensation

MAX1729EUB 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:1.09 MM HEIGHT, UMAX-10针数:10
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.15
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:5.5 V最小输入电压:2.7 V
标称输入电压:3 VJESD-30 代码:S-PDSO-G10
JESD-609代码:e0长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:10最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:0.06 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP10,.19,20封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):240
电源:3/5 V认证状态:Not Qualified
座面最大高度:1.1 mm子类别:Power Management Circuits
表面贴装:YES切换器配置:BUCK-BOOST
技术:BCDMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn85Pb15)端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:20宽度:3 mm
Base Number Matches:1

MAX1729EUB 数据手册

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19-1406; Rev 1; 1/99  
ECB a nd LCD Dis pla y Bia s Supply w ith Ac c ura te  
Output Volta ge a nd Te m pe ra ture Com pe ns a tion  
MAX1729  
Ge n e ra l De s c rip t io n  
Fe a t u re s  
The MAX1729 micropower step-up/step-down DC-DC  
converter is ideally suited for electrically controlled bire-  
fringence (ECB) and liquid-crystal-display (LCD) bias-  
s up p ly g e ne ra tion. It p rovid e s s te p -up /s te p -d own  
voltage conversion and reduces output ripple by using  
a step-up DC-DC converter followed by a linear regula-  
tor. This architecture permits a physically smaller induc-  
tor than those used in competing SEPIC and flyback  
topologies. This device features low quiescent current  
(67µA typical). A logic-controlled shutdown mode fur-  
ther reduces quiescent current to 0.4µA typical.  
High-Accuracy Reference Voltage (±1%)  
±11ppm/°C Output Voltage Drift  
On-Chip Temperature Sensor Output  
Accurate Voltage and Temperature Provide:  
Consistent ECB Colors  
Consistent LCD Gray-Scale Contrast  
+2.7V to +5.5V Input Voltage Range  
Output Voltage Range  
+2.5V to +16V in Internal Feedback Mode  
Programmable in External Feedback Mode  
The MAX1729 fe a ture s a n inp ut tha t d yna mic a lly  
adjusts the output voltage to control display color or  
contrast. It offers two feedback modes: internal and  
external. Internal feedback mode allows output volt-  
a g e s b e twe e n 2.5V a nd 16V, a nd is s p e c ific a lly  
d e s ig ne d to hold te mp e ra ture d rift to ± 11p p m/°C.  
External feedback mode allows the MAX1729 output  
voltage range to be tailored for various displays.  
Dynamic Control of the Output Voltage  
67µA Supply Current  
0.4µA Shutdown Current  
10-Pin µMAX Package (1.09mm max height)  
Evaluation Kit Available (MAX1729EVKIT)  
An on-chip temperature sensor with a positive tempera-  
ture coefficient provides compensation for LCD/ECB  
display temperature characteristics. In internal feed-  
back mode, the buffered temperature sensor output is  
read and used to adjust the output voltage via a digital  
control signal. External feedback mode features an  
additional compensation method in which the tempera-  
ture output is summed directly into the feedback net-  
work to p rovid e firs t-ord e r ne g a tive te mp e ra ture  
compensation of the output voltage. The MAX1729 is  
available in the space-saving 10-pin µMAX package.  
Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
PIN-PACKAGE  
MAX1729EUB  
-40°C to +85°C  
10 µMAX  
Typ ic a l Op e ra t in g Circ u it  
Ap p lic a t io n s  
ECB Display Bias & Color Adjustment  
LCD Display Bias & Contrast Adjustment  
Cellular Phones  
V
IN  
2.7V to 5.5V  
Personal Digital Assistants  
IN  
LX  
PS  
GND  
P in Co n fig u ra t io n  
MAX1729  
V
REF  
OUT  
OUT  
TOP VIEW  
+2.5V to +16V  
DIGITAL  
PWM  
CONTROLLER  
IN  
TC  
1
2
3
4
5
10 GND  
CTLIN  
TC  
FB  
9
8
7
6
LX  
MAX1729  
REF  
PS  
ADC  
COMP  
COMP  
FB  
OUT  
CTLIN  
µMAX  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  

MAX1729EUB 替代型号

型号 品牌 替代类型 描述 数据表
MAX1729EUB-T MAXIM

完全替代

Switching Regulator, Voltage-mode, 0.06A, BCDMOS, PDSO10, 1.09 MM HEIGHT, UMAX-10

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