A2526EL Allegro MicroSystems, A2526EL Datasheet

A2526EL

Manufacturer Part Number

A2526EL

Description

USB DUAL POWER CONTROL SWITCHES

Manufacturer

Allegro MicroSystems

Datasheet

1.A2526EL.pdf (12 pages)

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Download datasheet (221Kb)

FLG

Note that the A2526EM (DIP) and the

A2526EL (SOIC) are electrically identical and

share a common terminal number assignment.

Supply Voltage, V

Output Voltage, V

Output Current,

ENABLE Voltage Range,

Fault Flag Voltage, V

Fault Flag Current, I

Package Power Dissipation,

Operating Temperature Range,

Junction Temperature, T

Storage Temperature Range,

* Fault conditions that produce excessive

junction temperature will activate device

thermal shutdown circuitry. These conditions

can be tolerated but should be avoided.

OUT

........................... -65

................................. See Graph

.......................... -40

......................... –0.3 V to 10 V

................. Internally Limited

OUT

FLG

..................... 6.0 V

FLG

.................. 6.0 V

............. 50 mA

.............. 8.0 V

....... +150

C to +85

C to 150

Dwg. PP-070-2

USB DUAL POWER CONTROL SWITCHES

OUT

GND

OUT

2526

2536

power switches, optimized for self-powered and bus-powered Univer-

sal Serial Bus (USB) applications. Few external components are

necessary to satisfy USB requirements. The A2526EL/EM ENABLE

inputs are active high; the A2536EL/EM are active low.

channel supplies up to 500 mA as required by USB peripheral devices.

In addition, the switch’s low on-resistance permits achieving the USB

voltage-drop requirements. Fault current is limited to typically

750 mA, satisfying the UL 25 VA safety requirements, and a flag

output is available to indicate a fault condition to the local USB

controller. Momentary voltage drops that may occur on the upstream

port when the switch is enabled in bus-powered applications is elimi-

nated by a “soft start” feature.

switch failure from high-current loads, undervoltage lockout to ensure

that the device remains OFF unless there is a valid input voltage

present, and 3.3 V and 5 V logic-compatible enable inputs.

8-lead SOIC (suffix ‘L’) packages.

I 2.7 V to 5.8 V Input

I Up to 500 mA Continuous Load Current per Port

I 140 mΩ Maximum ON-Resistance

I 1.25 A Maximum Short-Circuit Current Limit

I Individual Open-Drain Fault Flag Outputs

I 125 µA Typical ON-State Supply Current

I <1 µA Typical OFF-State Supply Current

I Outputs Can be Forced Higher Than Input (off-state)

I Thermal Shutdown

I 2.2 V Typical Undervoltage Lockout

I 0.6 ms Turn On (soft-start) and Fast Turn Off

I A2526 (active-high) Improved Replacement for MIC2526-1

I A2536 (active-low) Improved Replacement for MIC2526-2

I USB Hosts and Self-Powered Hubs

I USB Bus-Powered Hubs

I Hot Plug-In Power Supplies

I Battery-Charger Circuits

The A2526EL/M and A2536EL/M are integrated high-side dual

All devices are ideally suited for USB applications. Each switch

Additional features include thermal shutdown to prevent catastrophic

These switches are provided in 8-pin mini-DIP (suffix ‘M’) and

AND

Related parts for A2526EL

A2526EL Summary of contents

Page 1

... The A2526EL/M and A2536EL/M are integrated high-side dual power switches, optimized for self-powered and bus-powered Univer- sal Serial Bus (USB) applications. Few external components are necessary to satisfy USB requirements. The A2526EL/EM ENABLE OUT A inputs are active high; the A2536EL/EM are active low. ...

Page 2

... UVLO TSD OSC CHARGE PUMP OUT GND 6 5 OUT B Dwg. PP-070-3 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 2000, Allegro MicroSystems, Inc. FLG A OUT A CURRENT LIMIT 1.2 V REF. IN CURRENT LIMIT OUT B FLG B GND Dwg. FP-049-1 2 ...

Page 3

... Note — Disabled is ≤ 0.8 V and enabled is ≥ 2.4 V (active high) for the A2526EL/EM. Disabled is ≥ 0.8V (active low) for the A2536EL/EM. www.allegromicro.com ° Ω µ Ω µ Ω µ Ω µ 2526 2536 AND DUAL POWER CONTROL SWITCHES ≤ ± ± and enabled is ≤ 0.8 V ...

Page 4

AND USB DUAL POWER CONTROL SWITCHES The power switch is an N-channel MOSFET with a maximum on-state resistance of 140 mΩ V). Configured high-side switch, the power switch prevents current flow in ...

Page 5

DUAL POWER CONTROL µ µ 2526 2536 AND USB SWITCHES µ ...

Page 6

AND USB DUAL POWER CONTROL SWITCHES µ Ω µ Ω 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 µ Ω ...

Page 7

AND DUAL POWER CONTROL SWITCHES Ω USB µ Ω ...

Page 8

AND USB DUAL POWER CONTROL SWITCHES A sense FET is employed for overcurrent conditions. Unlike current-sense resistors, sense FETs do not increase the series resistance of the current path. When an overcurrent condition is detected, the device maintains ...

Page 9

V REG Ω 3.3 V REG www.allegromicro.com DUAL POWER CONTROL Ω Ω 2526 2536 AND USB SWITCHES 8 µ µ 8 µ µ ...

Page 10

AND USB DUAL POWER CONTROL SWITCHES 0.1574 0.1497 0.020 0.013 0.0688 0.0532 4.00 3.80 0.51 0.33 1.75 1.35 NOTES: 1. Lead spacing tolerance is non-cumulative. 2. Exact body and lead configuration at vendor’s option within limits shown. 8 ...

Page 11

MAX 0.015 MIN 8 7.11 6.10 1 1.77 1.15 5.33 MAX 0.39 MIN NOTES: 1. Leads and 8 may be half leads at vendor’s option. 2. Lead thickness is measured ...

Page 12

... SWITCHES The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current ...

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