MAX6620ATI+ Maxim Integrated Products, MAX6620ATI+ Datasheet - Page 2

• Manufacturer Part Number: MAX6620ATI+
• Description: IC QUAD LIN FAN-SPD CTRLR 28TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX6620ATI+

• Applications: Fan Controller
• Number Of Outputs: 4
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Quad Linear Fan-Speed Controller
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..........................................................-0.3V to +6.0V
FAN_FAIL, SDA, SCL to GND ...............................-0.3V to +6.0V
ADDR, SPINUP_START, DAC_START, WD_START,
All Other Pins to GND..........................................-0.3V to +13.5V
Input Current at DACOUT_ Pins (Note 1) ...............+5mA/-50mA
Input Current at Any Pin (Note 1)..........................................5mA
ESD Protection (all pins, Human Body Model) (Note 2) ...±2000V
ELECTRICAL CHARACTERISTICS
(T
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifica-
Note 2: Human Body Model, 100pF discharged through a 1.5kΩ resistor.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
Operating Supply Voltage
Operating Supply Current
Quiescent Supply Current
V
DACOUT_ Output Current
DACOUT_ Output Voltage
DAC Feedback Voltage at Half
Scale
DAC Feedback Voltage at Full
Scale
Drive Voltage Resolution
DACFB_ Impedance
TACH Minimum Input Pulse Width
Internal Reference Frequency
Accuracy
TACH Count Accuracy (Note 4)
A
FAN
X1, X2 to GND ........................................-0.3V to (V
= -40°C to +125°C, V
_______________________________________________________________________________________
Supply Voltage
tions do not apply when operating the device beyond its rated operating conditions.
PARAMETER
CC
= 3.0V to 5.5V, unless otherwise noted. Typical values are at T
V
V
SYMBOL
I
DAC
DAC
DACOUT_
DACFB511
V
R
DACOUT_
V
FANLO
DACFB
V
FANHI
I
CC
CC
FBHS
FBFS
V
I
Shutdown mode
V
V
V
V
I
At DACFB_,
code = 0x100,
I
At DACFB_,
code = 0x1FF,
I
(Note 4)
Using 32.768kHz crystal
Using on-chip oscillator
2
DACOUT_
DACOUT_
DACOUT_
CC
GND
FAN
GND
FAN
C inactive
CC
= 5.5V
= 12V
= 12V
+ 10V < V
+ 3V < V
+ 0.3V)
= 5mA
= 5mA
= 5mA
DACOUT_
CONDITION
DACOUT_
Continuous Power Dissipation (T
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
28-Pin TQFN (derate 34.5mW/°C above +70°C) ....2758.6mW
< 10V,
V
V
V
V
V
V
V
V
< 11.5V,
FAN
FAN
FAN
FAN
FAN
FAN
FAN
FAN
= V
= V
= 12V
= 5V
= V
= V
= 12V
= 5V
FANHI
FANLO
FANHI
FANLO
A
= +25°C, V
11.25
MIN
0.05
5.54
2.05
-0.1
-18
-16
3.0
4.0
4.3
10
25
-3
-2
A
CC
= +70°C)
256/535
256/567
511/535
511/567
11.45
TYP
0.25
5.74
2.25
= 3.3V.) (Note 3)
0.2
5.0
4.5
12
3
9
1
V
11.65
MAX
+0.1
0.60
13.5
5.94
2.45
FAN
5.5
0.5
5.5
0.1
4.7
+3
+2
20
-
UNITS
MΩ
mA
mA
mA
µA
Bit
µs
%
%
V
V
V
V
V