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MAX16990

更新时间: 2024-11-05 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
21页 1543K
描述
36V、2.5MHz汽车级Boost/SEPIC控制器

MAX16990 数据手册

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Evaluation Kit  
Available  
Design  
Resources  
Tools  
and Models  
Support  
Click here to ask an associate for production status of specific part numbers.  
36V, 2.5MHz Automotive Boost/  
SEPIC Controllers  
MAX16990/MAX16992  
General Description  
Benefits and Features  
● Minimized Radio Interference with 2.5MHz Switching  
The MAX16990/MAX16992 are high-performance,  
current-mode PWM controllers with 4μA (typ) shut-  
down current for wide input voltage range boost/SEPIC  
converters. The 4.5V to 36V input operating volt-  
age range makes these devices ideal in automotive  
applications, such as front-end “preboost” or “SEPIC”  
power supplies and for the first boost stage in high-  
power LED lighting applications. An internal low-dropout  
regulator (PVL regulator) with a 5V output voltage  
enables the MAX16990/MAX16992 to operate directly  
from an automotive battery input. The input operating  
range can be extended to as low as 2.5V when the  
converter output is applied to the SUP input.  
Frequency Above the AM Radio Band  
● Space-Efficient Solution Design with Minimized  
External Components  
100kHz to 1MHz (MAX16990) and 1MHz to  
2.5MHz (MAX16992) Switching-Frequency Ranges  
12-Pin TQFN (3mm x 3mm) and 10-Pin μMAX  
Packages  
Spread Spectrum Simplifies EMI Management Design  
● Flexibility with Available Configurations for Boost,  
SEPIC, and Multiphase Applications  
• Adjustable Slope Compensation  
• Current-Mode Control  
There are multiple versions of the devices offering one  
or more of the following functions: a synchronization  
output (SYNCO) for two-phase operation, an overvoltage  
protection function using a separate input pin (OVP), and  
a reference input pin (REFIN) to allow on-the-fly output  
voltage adjustment.  
Internal Soft-Start (9ms)  
● Protection Features Support Robust Automotive  
Applications  
Operating Voltage Range Down to 4.5V (2.5V or  
Lower in Bootstrapped Mode), Immune to  
Load-Dump Transient Voltages Up to 42V  
PGOOD Output and Hiccup Mode for Enhanced  
System Protection  
The MAX16990 and MAX16992 operate in different  
frequency ranges. All versions can be synchronized to an  
external master clock using the FSET/SYNC input.  
Overtemperature Shutdown  
In addition, the MAX16990/MAX16992 have a factory-  
programmable spread-spectrum option. Both devices are  
available in compact 12-pin TQFN and 10-pin µMAX®  
packages.  
-40°C to +125°C Operation  
Typical Application Circuit  
Applications  
BOOTSTRAPPED 2.2MHz APPLICATION WITH LOW OPERATING VOLTAGE  
22µF  
Automotive LED Lighting  
● Automotive Audio/Navigation Systems  
Dashboards  
0.47µH  
P
BATTERY INPUT  
2.5V to 40V  
SW_OUT  
8V/2A  
47µF  
CERAMIC  
1µF  
17k  
PVL  
SUP  
DRV  
N
10kΩ  
10kΩ  
Ordering Information appears at end of data sheet.  
91kΩ  
1kΩ  
PGOOD  
PGOOD  
N
ISNS  
22mΩ  
PVL  
MAX16992AUBA/B  
2.2µF  
FB  
FSET/SYNC  
COMP  
13kΩ  
12kΩ  
EN  
N
GND  
ENABLE  
µMAX is a registered trademark of Maxim Integrated Products, Inc.  
19-6632; Rev 18; 10/21  
©
2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 © 2021 Analog Devices, Inc. All rights reserved.  
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