MAX15031ATE+T

更新时间： 2024-11-14 12:59:51

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MAX15031ATE+T 数据手册

19-4299; Rev 2; 6/09

80V, 300mW Boost Converter and Current

Monitor for APD Bias Applications

MAX5031

General Description

Features

♦ Input Voltage Range

The MAX15031 consists of a constant-frequency pulse-

width modulating (PWM) step-up DC-DC converter with

an internal switch and a high-side current monitor with

high-speed adjustable current limiting. This device can

generate output voltages up to 76V and provides current

monitoring up to 4mA (up to 300mW). The MAX15031

can be used for a wide variety of applications such as

avalanche photodiode biasing, PIN biasing, or varactor

biasing, and LCD displays. The MAX15031 operates

from 2.7V to 11V.

+2.7V to +5.5V (Using Internal Charge Pump) or

+5.5V to +11V

♦ Wide Output-Voltage Range from (V + 1V) to 76V

♦ Internal 1Ω (typ) 80V Switch

♦ 300mW Boost Converter Output Power

♦ Accurate 10ꢀ (500nA to 1mA) and 3.5ꢀ (1mA

to 4mA) High-Side Current Monitor

♦ Resistor-Adjustable Ultra-Fast APD Current Limit

The constant-frequency (400kHz), current-mode PWM

architecture provides low-noise output voltage that is

easy to filter. A high-voltage, internal power switch

allows this device to boost output voltages up to 76V.

Internal soft-start circuitry limits the input current when

the boost converter starts. The MAX15031 features a

shutdown mode to save power.

(1µs Response Time)

♦ Open-Drain Current-Limit Indicator Flag

♦ 400kHz Fixed Switching Frequency

♦ Constant PWM Frequency Provides Easy Filtering

in Low-Noise Applications

♦ Internal Soft-Start

The MAX15031 includes a current monitor with more

than three decades of dynamic range and monitors cur-

rent ranging from 500nA to 4mA with high accuracy.

Resistor-adjustable current limiting protects the APD

from optical power transients. A clamp diode protects

the monitor’s output from overvoltage conditions. Other

protection features include cycle-by-cycle current limit-

ing of the boost converter switch, undervoltage lockout,

and thermal shutdown if the die temperature reaches

+160°C.

♦ 2µA (max) Shutdown Current

♦ -40°C to +125°C Temperature Range

♦ Small Thermally Enhanced, 4mm x 4mm, 16-Pin

TQFN Package

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX15031ATE+

-40°C to +125°C

16 TQFN-EP*

The MAX15031 is available in a thermally enhanced

4mm x 4mm, 16-pin TQFN package and operates over

the -40°C to +125°C automotive temperature range.

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

*EP = Exposed pad.

Pin Configuration

Applications

TOP VIEW

Avalanche Photodiode Biasing and Monitoring

PIN Diode Bias Supplies

Low-Noise Varactor Diode Bias Supplies

FBON Modules

ILIM

BIAS 13

GPON Modules

SHDN 14

PGND 15

CNTRL

LCD Displays

MAX15031

*EP

SGND

Typical Operating Circuits appear at end of data sheet.

THIN QFN

(4mm × 4mm)

*EXPOSED PAD

________________________________________________________________ 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.

12 3 4 5 6 7...17

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MAX15031ATE+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX15031ATE+	MAXIM	完全替代	80V, 300mW Boost Converter and Current Monitor for APD Bias Applications

与MAX15031ATE+T相关器件

型号	品牌	获取价格	描述	数据表
MAX15031EVKIT	MAXIM	获取价格	Demonstrates APD Fast Current Limit
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MAX15034_11	MAXIM	获取价格	Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applicatio
MAX15034AAUI+	MAXIM	获取价格	Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applicatio
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MAX15034BAUI/V+	MAXIM	获取价格	Dual Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO28,

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