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MAX1385BETM+T

更新时间： 2024-11-15 13:10:19

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
52页	502K
描述
Telecom Circuit, 1-Func, 7 X 7 MM, ROHS COMPLIANT, TQFN-48

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MAX1385BETM+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	HVQCCN,
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.68	Samacsys Confidence：
Samacsys Status：	Released	Samacsys PartID：	599619
Samacsys Pin Count：	49	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Other	Samacsys Footprint Name：	QFN50P700X700X80-49N
Samacsys Released Date：	2017-01-11 21:24:41	Is Samacsys：	N
JESD-30 代码：	S-XQCC-N48	长度：	7 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	48	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
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）：	NOT SPECIFIED
座面最大高度：	0.8 mm	标称供电电压：	5 V
表面贴装：	YES	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7 mm
Base Number Matches：	1

MAX1385BETM+T 数据手册

19-4456; Rev 0; 2/09

Dual RF LDMOS Bias Controllers

with I C/SPI Interface

5/MAX1386

General Description

Features

The MAX1385/MAX1386 set and control bias conditions

for dual RF LDMOS power devices found in cellular

base stations. Each device includes a high-side cur-

rent-sense amplifier with programmable gains of 2, 10,

and 25 to monitor LDMOS drain current over the 20mA

to 5A range. Two external diode-connected transistors

monitor LDMOS temperatures while an internal temper-

ature sensor measures the local die temperature of the

MAX1385/MAX1386. A 12-bit ADC converts the pro-

grammable-gain amplifier (PGA) outputs, external/inter-

nal temperature readings, and two auxiliary inputs.

♦ Integrated High-Side Drain Current-Sense PGA

with Gain of 2, 10, or 25

♦

0.5ꢀ Accuracy for Sense ꢁoltage ꢂetween ꢃ5mꢁ

and 250mꢁ

♦ Full-Scale Sense ꢁoltage of 100mꢁ with Gain of 25

♦ Full-Scale Sense ꢁoltage of 250mꢁ with Gain of 10

♦ Common-Mode Range of 5ꢁ to 30ꢁ Drain ꢁoltage

for LDMOS

♦ Adjustable Low Noise 0 to 5ꢁ, 0 to 10ꢁ Output

The two gate-drive channels, each consisting of 8-bit

coarse and 10-bit fine DACs and a gate-drive amplifier,

generate a positive gate voltage to bias the LDMOS

devices. The MAX1385 includes a gate-drive amplifier

with a gain of 2 and the MAX1386 gate-drive amplifier

provides a gain of 4. The 8-bit coarse and 10-bit fine

DACs allow up to 18 bits of resolution. The MAX1385/

MAX1386 include autocalibration features to minimize

error over time, temperature, and supply voltage.

Gate-ꢂias ꢁoltage Ranges with 10mA Gate Drive

♦ Fast Clamp to 0ꢁ for LDMOS Protection

♦ 8-ꢂit DAC Control of Gate-ꢂias ꢁoltage

♦ 10-ꢂit DAC Control of Gate-ꢂias Offset with

Temperature

♦ Internal Die Temperature Measurement

The MAX1385/MAX1386 feature an I²C/SPI™-compatible

serial interface. Both devices operate from a 4.75V to

5.25V analog supply (3.2mA supply current), a 2.7V to

5.25V digital supply (3.1mA supply current), and a 4.75V

to 11.0V gate-drive supply (4.5mA supply current). The

MAX1385/MAX1386 are available in a 48-pin thin QFN

package.

♦ External Temperature Measurement by Diode-

Connected Transistor (2N3904)

♦ Internal 12-ꢂit ADC Measurement of Temperature,

Current, and ꢁoltages

♦ Selectable I²C-/SPI-Compatible Serial Interface

400kHz/1.ꢃMHz/3.4MHz I²C-Compatible Control

for Settings and Data Measurement

16MHz SPI-Compatible Control for Settings

and Data Measurement

Applications

RF LDMOS Bias Control in Cellular Base Stations

♦ Internal 2.5ꢁ Reference

Industrial Process Control

♦ Three Address Inputs to Control Eight Devices in

I²C Mode

Ordering Information/Selector Guide

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

48 Thin QFN-EP*

TEMP ERROR (°C)

ꢁ

(ꢁ)

GATE

MAX1385AETM+**

MAX1385BETM+

MAX1386AETM+**

MAX1386BETM+**

*EP = Exposed pad.

**Future product—contact factory for availability.

+Denotes a lead(Pb)-free/RoHS-compliant package.

Pin Configuration and Typical Operating Circuit (I C Mode)

appear at end of data sheet.

SPI is a trademark of Motorola, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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与MAX1385BETM+T相关器件

型号	品牌	获取价格	描述	数据表
MAX1386	MAXIM	获取价格	Dual RF LDMOS Bias Controllers with I2C/SPI Interface
MAX1386AETM+	MAXIM	获取价格	Dual RF LDMOS Bias Controllers with I2C/SPI Interface
MAX1386BETM+	MAXIM	获取价格	Dual RF LDMOS Bias Controllers with I2C/SPI Interface
MAX138C/D	MAXIM	获取价格	3Digit A/D Converters with Bandgap Refrence
MAX138CMH	MAXIM	获取价格	3Digit A/D Converters with Bandgap Refrence
MAX138CMH+	MAXIM	获取价格	ADC, Dual-Slope, 24-Bit, 1 Func, 1 Channel, Parallel, Word Access, CMOS, PQFP44, MQFP-44
MAX138CMH+D	MAXIM	获取价格	暂无描述
MAX138CMH+T	MAXIM	获取价格	ADC, Dual-Slope, 24-Bit, 1 Func, 1 Channel, Parallel, Word Access, CMOS, PQFP44, MQFP-44
MAX138CMH+TD	MAXIM	获取价格	ADC, Dual-Slope, 1 Func, 1 Channel, PQFP44, LEAD FREE, MQFP-44
MAX138CMH-D	MAXIM	获取价格	ADC, Dual-Slope, 1 Func, 1 Channel, PQFP44, MQFP-44

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