|
|
|
MAX6615, MAX6616
Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs
Industry's Only Dual-Channel Temperature Monitor and Fan Controllers with Thermistor Inputs
|
Status
Active: In Production.
Description
The MAX6615/MAX6616 monitor two temperature channels, either the internal die temperature and the temperature of an external thermistor, or the temperatures of two external thermistors. The temperature data controls a PWM output signal to adjust the speed of a cooling fan, thereby minimizing noise when the system is running cool, but providing maximum cooling when power dissipation increases. The fans' tachometer output signals are monitored by the MAX6615/MAX6616 to detect fan failure. If a fan failure is detected, the active-low FAN_FAIL output is asserted.
The 2-wire serial interface accepts standard system management bus (SMBus™) write byte, read byte, send byte, and receive byte commands to read the temperature data and program the alarm thresholds. The programmable alarm output can be used to generate interrupts, throttle signals, or overtemperature shutdown signals.
The MAX6616 features six GPIOs to provide additional flexibility. All of the GPIOs power-up as inputs, with the exception of GPIO0, which powers up as either an input or an output as determined by connecting the PRESET pin to ground or VCC.
The MAX6616 is available in a 24-pin QSOP package, while the MAX6615 is available in a 16-pin QSOP package. Both devices operate from a single-supply voltage range of 3.0V to 5.5V, have operating temperature ranges of -40°C to +125°C, and consume just 500µA of supply current.
|
|
Data Sheet
|
An evaluation kit is available: MAX6616EVCMODU, MAX6616EVKIT
Key Features
- Two Thermistor Inputs
- Two Open-Drain PWM Outputs for Fan-Speed Control
- Local Temperature Sensor
- Six GPIOs (MAX6616)
- Programmable Fan-Control Characteristics
- Controlled PWM Rate-of-Change Ensures Unobtrusive Fan-Speed Adjustments
- Fail-Safe System Protection
- Active-Low OT Output for Throttling or Shutdown
- Nine Different Pin-Programmable SMBus Addresses
- 16-Pin and 24-Pin QSOP Packages
|
|
Applications/Uses
- Desktop Computers
- Networking Equipment
- Power Supplies
- Servers
- Workstations
|
|
|
|
Key Specifications:
| Fan Controllers |
| Part Number |
Sensor Type |
Fan Controller Functions |
Fan Cntrl. |
Interface |
Accuracy
(±°C) |
Temp. Thresh.
(°C) |
Temp. Resolution
(bits) |
Oper. Temp.
(°C) |
Budgetary Price |
| See Notes |
| MAX6615 |
Remote |
Fan Failure Detector |
PWM |
2-Wire/I2C/SMBus |
1 |
Programmable |
11 |
-55 to +130 |
$1.75 @1k |
| MAX6616 |
- |
- |
$1.94 @1k |
|
See All Fan Controllers (19)
|
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.
|
|
| Temperature Sensors |
| Part Number |
Sensor Type |
Alarm Output |
Functions |
Interface |
Remote Chan. |
Accuracy
(±°C) |
Parasite Pwr. |
Temp. Thresh. |
Temp. Resolution
(bits) |
Oper. Temp.
(°C) |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| MAX6615 |
Remote |
|
| Dual Temperature Monitor | | Fan Controller | | Thermistor-to-Digital Converter |
|
2-Wire/I2C/SMBus |
Dual |
1 |
No |
Programmable |
11 |
-55 to +130 |
30.9 |
$1.75 @1k |
|
See All Temperature Sensors (103)
|
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.
|
|
Diagram
 Typical Application Circuit
Application Notes
Reliability Reports
Software/Models
Ordering Information
|
Part Number
|
Free
Sample |
Buy |
Status
|
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
|
Temp |
RoHS/Lead-Free?
Materials Analysis
|
| MAX6615AEE
|
|
|
Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*
|
-40°C to +125°C
|
RoHS/Lead-Free: No
Materials Analysis |
| MAX6615AEE+
|
|
|
Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*
|
-40°C to +125°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6615AEE+T
|
|
|
Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*
|
-40°C to +125°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6615AEE-T
|
|
|
Active |
QSOP;16 pin
Land Pattern: Not Available
|
-40°C to +125°C
|
See data sheet
|
| MAX6616AEG
|
|
|
Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*
|
-40°C to +125°C
|
RoHS/Lead-Free: No
Materials Analysis |
| MAX6616AEG+
|
|
|
Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*
|
-40°C to +125°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6616AEG+T
|
|
|
Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*
|
-40°C to +125°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6616AEG-T
|
|
|
Active |
QSOP;24 pin
Land Pattern: Not Available
|
-40°C to +125°C
|
See data sheet
|
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.
|
Similar Products by Function
| MAX6641 |
SMBus-Compatible Temperature Monitor with Automatic PWM Fan-Speed Controller |
| MAX6643, MAX6644, MAX6645 |
Automatic PWM Fan-Speed Controllers with Overtemperature Output |
| MAX6678 |
2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller and Five GPIOs |
| MAX6639, MAX6639F |
2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller |
|
|
Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-3713
Rev 2;
2008-12-16
This page last modified: 2010-05-24
|
|
|
Download
E-Mail