Datasheet > MAX16990

MAX16990

更新时间： 2024-09-16 01:21:15

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
19页	1045K
描述
Boost/SEPIC Controllers

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MAX16990 数据手册

MAX16990/MAX16992

36V, 2.5MHz Automotive Boost/SEPIC Controllers

General Description

Features

The MAX16990/MAX16992 are high-performance, current-

mode PWM controllers with 4FA (typ) shutdown current

for wide input voltage range boost/SEPIC converters. The

4.5V to 36V input operating voltage range makes these

devices ideal in automotive applications such as for 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 oper-

ate 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.

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.

S Operating Voltage Range Down to 4.5V (2.5V or

Lower in Bootstrapped Mode), Immune to Load-

Dump Transient Voltages Up to 42V

S 100kHz to 1MHz (MAX16990) and 1MHz to 2.5MHz

(MAX16992) Switching Frequency Ranges

1ꢀ Feedꢁack Voltage Accuracy

S 4µA Shutdown Current

S Adjustaꢁle Slope Compensation

S Internal Soft-Start (9ms)

S Current-Mode Control

S PGOOD Output and Hiccup Mode for Enhanced

System Protection

S Overtemperature Shutdown

S -40NC to +125NC Operation

The MAX16990 and MAX16992 operate in different fre-

quency ranges. All versions can be synchronized to an

external master clock using the FSET/SYNC input.

S Compact 12-Pin TQFN (3mm x 3mm) and 10-Pin

µMAX Packages

In addition, the MAX16990/MAX16992 have a factory-

programmable spread-spectrum option. Both devices

are available in compact 12-pin TQFN and 10-pin

Applications

Automotive LED Lighting

Automotive Audio/Navigation Systems

Dashboards

FMAX packages.

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part,

refer to: www.maximintegrated.com/MAX16990.related

Typical Application Circuit

BOOTSTRAPPED 2.2MHz APPLICATION WITH LOW OPERATING VOLTAGE

22µF

1µF

0.47µF

BATTERY INPUT

2.5V–40V

SW_OUT

8V/2A

47µF

CERAMIC

17kΩ

PVL

SUP

DRV

10kΩ

91kΩ

1kΩ

PGOOD

ISNS

22mΩ

PVL

MAX16990AUBA/B

2.2µF

FSET/SYNC

COMP

13kΩ

12kΩ

GND

ENABLE

µMAX is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct at

1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

19-6632; Rev 3; 7/13

12 3 4 5 6 7...19

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与MAX16990相关器件

型号	品牌	获取价格	描述	数据表
MAX16990ATCC	MAXIM	获取价格	36V, 2.5MHz Automotive Boost SEPIC Controllers
MAX16990ATCD	MAXIM	获取价格	36V, 2.5MHz Automotive Boost SEPIC Controllers
MAX16990ATCE	MAXIM	获取价格	36V, 2.5MHz Automotive Boost SEPIC Controllers
MAX16990ATCE/V+	MAXIM	获取价格	Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, TQFN-12
MAX16990ATCF	MAXIM	获取价格	36V, 2.5MHz Automotive Boost SEPIC Controllers
MAX16990AUBA	MAXIM	获取价格	36V, 2.5MHz Automotive Boost SEPIC Controllers
MAX16990AUBB	MAXIM	获取价格	36V, 2.5MHz Automotive Boost SEPIC Controllers
MAX16990AUBB/V+	MAXIM	获取价格	Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO10, UMAX-10
MAX16990EVKIT	MAXIM	获取价格	3V to 36V, 10A DC power supply
MAX16992	MAXIM	获取价格	Boost/SEPIC Controllers

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