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MAX4987AE, MAX4987BE
Overvoltage-Protection Controller with USB ESD Protection
Overvoltage-Protection Controller with ESD Protection for High-Speed USB Interface
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Status
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Status |
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MAX4987AE
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Active: In Production. |
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MAX4987BE
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Future Product |
Description
The MAX4987AE/MAX4987BE are overvoltage protection devices with built-in ESD protection for USB data lines. These devices feature a low 100mΩ (typ) RON internal nFET switch and protect low-voltage systems against voltage 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 protection. 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) threshold, 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.
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Data Sheet
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Key Features
- Input Voltage Protection Up to +28V
- Integrated Low RON (100mΩ) nFET Switch
- Internal Overcurrent Protection 1.5A (min)
- Overcurrent Protection (Autoretry)
- Enable Input
- Internal 30ms Startup Delay
- Low-Capacitance USB High-Speed Data Line ESD Protection (3pF)
- ±15kV Human Body Model
- ±15kV IEC 61000-4-2 Air Gap
- ±6kV IEC 61000-4-2 Contact
- Thermal-Shutdown Protection
- 2mm x 3mm, 8-Pin TDFN Package
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Applications/Uses
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Key Specifications:
| Overvoltage Protection Controllers |
| Part Number |
Channels |
VIN
(V) |
VIN
(V) |
Over Voltage Trip Level
(V) |
Under Voltage Lockout
(V) |
Over Volt. Flag |
Package/Pins |
| min |
max |
| MAX4987 |
1 |
2.2 |
28 |
6.15 |
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Open-Drain |
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See All Overvoltage Protection Controllers (60)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
Application Notes
Reliability Reports
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX4987AEETA+
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Active |
TDFN-EP;8 pin;6.3 mm²
Outline Drawing:21-0174 (PDF)
Land Pattern: 90-0091 (PDF)
Use pkgcode/variation: T823+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX4987AEETA+T
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Active |
TDFN-EP;8 pin;6.3 mm²
Outline Drawing:21-0174 (PDF)
Land Pattern: 90-0091 (PDF)
Use pkgcode/variation: T823+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-1059
Rev 0;
2007-11-27
This page last modified: 2009-08-26
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