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MAX8586
Single 1.2A USB Switch in 3mm x 3mm TDFN
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Status
Active: In Production.
Description
The MAX8586 single current-limited switch controls up to 1.2A to power USB applications and has multiple protection features including thermal shutdown, internal current limiting, and reverse current protection. The thermal shutdown limits junction temperature during a prolonged short or overload condition. The internal current-limiting circuitry protects the input supply against overload and is programmable using an external resistor. The MAX8586 meets all IEC specifications for USB ports.
The IC latches off when the output experiences a short circuit for more than 20ms, saving system power. Auto-restart tests the shorted output with a 25mA current to determine if the short still exists. Once the short is removed, the MAX8586 automatically restarts the output. An open-drain fault signal notifies the system that the internal current limit has been reached. A 20ms fault-blanking feature allows the circuit to ignore momentary faults such as those caused when hot-swapping into a capacitive load. An ENRESET input is available to disable the auto-restart function.
The MAX8586 features a SEL input that programs ON to be either active high or active low. The IC is supplied in a space-saving, 8-pin, 3mm x 3mm TDFN package.
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Data Sheet
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An evaluation kit is available: MAX8586EVKIT
Key Features
- Reverse Current Protection
- Programmable Current Limit Up to 1.2A
- Accurate Current Limit
- Selectable Auto-Restart when Fault Is Removed
- Thermal-Overload Protection
- Selectable Active-High/Low ON Input
- Built-In 20ms Fault Blanking
- Compliant with All USB Specifications
- 2.75V to 5.5V Input Supply Range
- Active-Low FAULT Indicator Output
- 15kV ESD Protection (with Caps)
- Tiny 8-Pin 3mm x 3mm TDFN Package
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Applications/Uses
- Desktop/Notebook Computers
- Docking Stations
- PDAs and Palmtop Computers
- USB Ports/Hubs
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Key Specifications:
| Current Limit and USB Power Switches |
| Part Number |
USB |
Power Switches |
Current Limit
(mA) |
Current Limit
(mA) |
Fault Indicator |
Current Limit Accuracy
(%) |
Current Limit Set By |
Lowest Adj. Setting
(A) |
RON
(Ω) |
VSUPPLY
(V) |
VSUPPLY
(V) |
Oper. Temp.
(°C) |
Package/Pins |
Budgetary Price |
| ≥ |
≤ |
typ |
min |
max |
See Notes |
| MAX8586 |
Yes |
1 |
1200 |
1200 |
Yes |
14 |
Resistor |
0.5 |
0.055 |
2.7 |
5.5 |
-40 to +85 |
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$0.65 @1k |
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See All Current Limit and USB Power Switches (77)
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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
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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| MAX8586ETA+
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX8586ETA+T
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX8586ETA-T
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX8586ETA/V+
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX8586ETA/V+T
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833+2*
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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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More Information
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Information Index
Document Ref.: 19-3449
Rev 2;
2010-02-24
This page last modified: 2010-02-24
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