MAX8515AEXK+T Maxim Integrated Products, MAX8515AEXK+T Datasheet

MAX8515AEXK+T

Manufacturer Part Number

MAX8515AEXK+T

Description

IC ISOLATED ADJ 20MA SC705

Manufacturer

Maxim Integrated Products

Type

Isolatedr

Datasheet

1.MAX8515AEZKT.pdf (10 pages)

Specifications of MAX8515AEXK+T

Internal Switch(s)

Yes

Synchronous Rectifier

Number Of Outputs

Voltage - Output

0.2 ~ 18 V

Current - Output

20mA

Voltage - Input

1.7 ~ 28 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

SC-70-5, SC-88A, SOT-323-5, SOT-353, 5-TSSOP

Power - Output

247mW

Product

Voltage References

Topology

Shunt References

Output Voltage

0.2 V to 18 V

Initial Accuracy

0.5 %

Series Vref - Input Voltage (max)

30 V

Shunt Current (max)

20 mA

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Mounting Style

SMD/SMT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Frequency - Switching

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

MAX8515AEXK+T
MAX8515AEXK+TTR

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The MAX8515A/MAX8515 shunt regulators simplify the

design of voltage regulation and overvoltage protection

(OVP) functions in high-accuracy isolated DC-to-DC con-

verters with output voltages as low as 0.6V. The devices

have supply voltage and feedback inputs separated from

the output shunt stage, and can operate directly from the

DC-to-DC converter output stage when the output voltage

is 1.8V to 18V. Alternately, the MAX8515A/MAX8515 input

stage can be biased from an unregulated 1.7V to 28V

supply, independent of DC-to-DC converter output volt-

age. The MAX8515A/MAX8515 shunts 20mA when the

output voltage is as low as 0.2V.

The MAX8515A features an initial output accuracy of

0.5% at +25°C and 1% from -40°C to +85°C and provides

the output voltage regulation function for isolated DC-to-

DC converters. The MAX8515 features initial output

accuracy of 1% at +25°C and 1.8% from -40°C to +85°C

and can provide an output OVP function for isolated DC-

to-DC converters. High open-loop bandwidth allows

design of high-bandwidth DC-to-DC converters.

Low-cost, low-dropout linear regulators can be designed

with the MAX8515A/MAX8515 and an external NPN tran-

sistor for cost-conscious applications that do not require

overcurrent, short-circuit, or overtemperature protection.

The MAX8515/MAX8515A are available in space-saving

5-pin SC70 and SOT23 packages and are specified over

the -40°C to +85°C extended temperature range. An eval-

uation kit is available to speed designs.

19-2528; Rev 1; 2/03

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

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

TOP VIEW

Isolated DC-to-DC Converters

Network, Telecom, and Cellular Base Station

Power Supplies

Low-Dropout Linear Regulators

Shunt Regulator

Adjustable Voltage Reference

PGND

GND

OUT

SC7O/THIN SOT23

________________________________________________________________ Maxim Integrated Products

MAX8515A

MAX8515

General Description

Wide-Input 0.6V Shunt Regulators for

Pin Configuration

5 FB

Applications

Isolated DC-to-DC Converters

o MAX8515A

o MAX8515

o Sinks 20mA at 0.2V to 18V

o Input Voltage Range from 1.7V to 28V

o Directly Drives Optocouplers

o 0.2Ω Dynamic Output Impedance

o Space-Saving 5-Pin SC70 or SOT23 Packages

Functional Diagram appears at end of data sheet.

Selector Guide appears at end of data sheet.

MAX8515AEXK-T

MAX8515AEZK-T

MAX8515EXK-T

MAX8515EZK-T

0.6V ±0.5% Initial Accuracy at +25°C

0.6V ±1% Accuracy from -40°C to +85°C

0.6V ±1% Initial Accuracy at +25°C

0.6V ±1.8% Accuracy from -40°C to +85°C

INPUT SUPPLY

1.7V TO 28V

PART

PGND

GND

1.7V TO 18V

MAX8515A

Typical Operating Circuit

MAX8515

INPUT

-40°C to +85°C

TEMP RANGE

OUT

Ordering Information

PIN-PACKAGE

5 SC70-5

5 Thin SOT23-5

5 SC70-5

5 Thin SOT23-5

ISOLATED DC-DC

CONVERTER

OUTPUT

(DOWN TO 0.6V)

CONTROL

VOLTAGE

PRIMARY SIDE

PWM CONVERTER

Features

Related parts for MAX8515AEXK+T

MAX8515AEXK+T Summary of contents

Page 1

... MAX8515 OUT SC7O/THIN SOT23 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Isolated DC-to-DC Converters o MAX8515A 0.6V ±0.5% Initial Accuracy at +25°C 0.6V ±1% Accuracy from -40°C to +85°C o MAX8515 0.6V ± ...

Page 2

Wide-Input 0.6V Shunt Regulators for Isolated DC-to-DC Converters ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +30V OUT to GND ...........................................................-0.3V to +20V FB to GND .................-0.3V to the lower of 5.5V and (V PGND to GND .......................................................-0.3V to +0.3V ...

Page 3

Wide-Input 0.6V Shunt Regulators for (V = 3.3V 5mA OUT, circuit in Figure 0.1µ 1µ OUT FB BIAS CURRENT vs. TEMPERATURE 3.3V IN -10 V ...

Page 4

Wide-Input 0.6V Shunt Regulators for Isolated DC-to-DC Converters (V = 3.3V 5mA OUT, circuit in Figure 0.1µ 1µ OUT OUTPUT VOLTAGE CHANGE vs. LOAD CURRENT 0.6 0.5 0.4 0.3 ...

Page 5

Wide-Input 0.6V Shunt Regulators for OUT C1 0.1µF MAX8515A R1 MAX8515 PGND GND FB R2 Figure 1. MAX8515A/MAX8515 Typical Application Circuit, Shunt Regulator/Adjustable Voltage Reference Optical Feedback Figure 3 displays an application circuit using the ...

Page 6

Wide-Input 0.6V Shunt Regulators for Isolated DC-to-DC Converters V REG 1.8V MAX5003 NDRV PGND R1 47kΩ IN OUT 0.1µF MAX8515A 20kΩ 0.1µF MAX8515 1% PGND GND FB R4 10kΩ 1% Figure 3. MAX8515A/MAX8515 Typical Application Circuit, Opto-Feedback ...

Page 7

Wide-Input 0.6V Shunt Regulators for FZT1049A 1. OUT C1 C2 0.1µF 1.0µF MAX8515A MAX8515 GND FB Figure 5. MAX8515A/MAX8515 Typical Application Circuit, Linear Regulator LINEAR-REGULATOR LOAD REGULATION 0 -0 ...

Page 8

Wide-Input 0.6V Shunt Regulators for Isolated DC-to-DC Converters (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 8 _______________________________________________________________________________________ Package Information ...

Page 9

Wide-Input 0.6V Shunt Regulators for (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) _______________________________________________________________________________________ Isolated DC-to-DC Converters Package Information (continued) 9 ...

Page 10

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products ...

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