MAX4987AETA+T Maxim Integrated Products, MAX4987AETA+T Datasheet

IC CTLR OVP USB ESD PROT 8-TDFN

MAX4987AETA+T

Manufacturer Part Number
MAX4987AETA+T
Description
IC CTLR OVP USB ESD PROT 8-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX4987AETA+T

Applications
*
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX4987AE/MAX4987BE are overvoltage protection
devices with built-in ESD protection for USB data lines.
These devices feature a low 100mΩ (typ) R
nFET switch and protect low-voltage systems against volt-
age faults up to +28V. When the input voltage exceeds
the overvoltage threshold or decreases below the under-
voltage threshold, the internal nFET switch is turned off to
prevent damage to the protected components.
All switches feature a minimum 1.5A current-limit pro-
tection. During a short-circuit occurrence, the switch
operates in an autoretry mode where the internal nFET
switch is turned on to check if the fault has been
removed. The autoretry interval is 30ms, and if the fault
is removed, the nFET switch remains on.
The MAX4987AE/MAX4987BE feature low-capacitance
(3pF) ESD protection for USB data lines that allow
transmission of high-speed USB 2.0 signals.
The overvoltage threshold (OVLO) is preset to 6.15V.
The undervoltage thresholds (UVLO) are preset to 2.55V
(MAX4987AE) or 4.2V (MAX4987BE). When the input
voltage drops below the undervoltage (UVLO) thresh-
old, the devices enter a low-current standby mode.
All devices are offered in a small 2mm x 3mm, 8-pin
TDFN package and operate over the -40°C to +85°C
extended temperature range.
19-1059; Rev 0; 11/07
Typical Operating Circuit appears at end of data sheet.
Note: All devices are specified over the -40°C to +85°C operating temperature range.
+ Denotes a lead-free package.
* Future product—contact factory for availability.
** EP = Exposed paddle.
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.
MAX4987AEETA+
MAX4987BEETA+*
Cell Phones
Media Players
PART
________________________________________________________________ Maxim Integrated Products
General Description
PIN-
PACKAGE
8 TDFN-EP**
8 TDFN-EP**
Overvoltage-Protection Controller
Applications
TOP MARK
AAJ
AAI
ON
internal
PACKAGE
with USB ESD Protection
T823-1
T823-1
CODE
Ordering Information/Selector Guide
o Input Voltage Protection Up to +28V
o Integrated Low R
o Internal Overcurrent Protection 1.5A (min)
o Overcurrent Protection (Autoretry)
o Enable Input
o Internal 30ms Startup Delay
o Low-Capacitance USB High-Speed Data Line ESD
o Thermal-Shutdown Protection
o 2mm x 3mm, 8-Pin TDFN Package
*CONNECT EXPOSED
TOP VIEW
Protection (3pF)
PAD TO GND.
±15kV Human Body Model
±15kV IEC 61000-4-2 Air Gap
±6kV IEC 61000-4-2 Contact
UVLO (V)
2.55
4.2
OUT
ON
IN
1
8
2mm x 3mm
MAX4987AE/
OVLO (V)
MAX4987BE
TDFN-EP
(100mΩ) nFET Switch
ACOK
CD+
7
2
6.15
6.15
Pin Configuration
GND
EN
6
3
*EP
V
CD-
CC
5
4
OVERCURRENT
Features
Autoretry
Autoretry
MODE
1

Related parts for MAX4987AETA+T

MAX4987AETA+T Summary of contents

Page 1

... Note: All devices are specified over the -40°C to +85°C operating temperature range. + Denotes a lead-free package. * Future product—contact factory for availability Exposed paddle. ________________________________________________________________ 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. with USB ESD Protection ...

Page 2

Overvoltage-Protection Controller with USB ESD Protection ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) IN ............................................................................-0.3V to +30V OUT.............................................................-0.3V to +(IN + 0.3V) , EN, ACOK, CD+, CD- ......................................-0. Continuous Power Dissipation (T = +70°C) for ...

Page 3

Overvoltage-Protection Controller ELECTRICAL CHARACTERISTICS (continued +2.2V to +28V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER TIMING CHARACTERISTICS (Note 2) Debounce Time ACOK Assertion Time Switch Turn-On Time Switch Turn-Off ...

Page 4

Overvoltage-Protection Controller with USB ESD Protection (T = +25°C, unless otherwise noted.) A NORMALIZED OVLO THRESHOLD vs. TEMPERATURE 1.010 1.008 1.006 1.004 1.002 1.000 0.998 0.996 0.994 0.992 0.990 -40 - TEMPERATURE (°C) DEBOUNCE TIME vs. TEMPERATURE ...

Page 5

Overvoltage-Protection Controller PIN NAME Voltage Input. Bypass IN with a 1µF ceramic capacitor as close to the device as possible to obtain 1 IN ±15kV HBM ESD protection. No capacitor required to obtain ±2kV HBM ESD protection. 2 CD+ USB ...

Page 6

Overvoltage-Protection Controller with USB ESD Protection IN OUT t INDBC ACOK Figure 1. MAX4987AE/MAX4987BE Timing Diagram Detailed Description The MAX4987AE/MAX4987BE are overvoltage protec- tion devices with integrated ESD protection for USB data lines. These devices feature a low R FET ...

Page 7

Overvoltage-Protection Controller Overvoltage Lockout (OVLO) The MAX4987AE/MAX4987BE have a 6.15V (typ) over- voltage threshold (OVLO). When V , ACOK is high impedance. V OVLO ACOK is an active-low open-drain output that asserts low when V < V < V UVLO ...

Page 8

Overvoltage-Protection Controller with USB ESD Protection are specified for ±15kV Air-Gap Discharge and ±6kV Contact Discharge IEC 61000-4-2 on the CD+ and CD- pins. The major difference between tests done using the Human Body Model and IEC 61000-4 ...

Page 9

Overvoltage-Protection Controller (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.) _______________________________________________________________________________________ with USB ESD Protection Package Information PACKAGE OUTLINE 8L TDFN, EXPOSED PAD, 2x3x0.8mm 1 ...

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 © 2007 Maxim Integrated Products ...

Related keywords