MAX6651 MAXIM [Maxim Integrated Products], MAX6651 Datasheet - Page 2

• Manufacturer Part Number: MAX6651
• Description: Fan-Speed Regulators and Monitors with SMBus/I2C-Compatible Interface
• Manufacturer: MAXIM [Maxim Integrated Products]

ABSOLUTE MAXIMUM RATINGS
V
FB, TACH_ ..........................................................-0.3V to +13.2V
All Other Pins..............................................-0.3V to (V
Output Voltages..........................................-0.3V to (V
Maximum Current
Fan-Speed Regulators and Monitors
with SMBus/I
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.
ELECTRICAL CHARACTERISTICS
(V
2
CC
POWER SUPPLY (V
OUTPUT (OUT)
TACHOMETER INPUTS (TACH_)
FEEDBACK (FB)
GENERAL-PURPOSE INPUTS/OUTPUTS (GPIO_) (Note 2)
Supply Voltage
Supply Current
Output Voltage Range
Output Sink Current
Output Source Current
Tachometer Threshold
Tachometer Input Impedance
DAC Differential Nonlinearity
Useful DAC Resolution
Feedback Input Impedance
Input Low Voltage
Input High Voltage
Input Hysteresis
Pullup Resistor
Output Sink Current
CC
Into V
Into All Other Pins ..........................................................50mA
_______________________________________________________________________________________
to GND ..............................................................-0.3V to +6V
= 3.0V to 5.5V, T
CC
PARAMETER
, GND, V
OUT
CC
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
...................................................100mA
)
V
SYMBOL
V
I
2
R
SOURCE
V
IL(GPIO_)
IH(GPIO_)
R
I
V
I
V
GPIO_
TACH_
TACH_
V
GPIO_
SINK
R
I
OUT
HYS
C-Compatible Interface
CC
CC
FB
Full-on mode, I
I
V
V
5V fan, 0 < V
12V fan, 0 < V
0 < V
Guaranteed monotonicity on FB (Note 1)
Measured at FB (Note 1)
0 < VFB < 9V
V
V
V
OUT
OUT
OUT
CC
CC
GPIO_
≤ 3.6V
> 3.6V
CC
CC
= ±100µA
TACH
= 0.5V
= V
= 0.4V
+ 0.3V)
+ 0.3V)
CC
< 9V
- 1.8V
FB
FB
OUT
CONDITIONS
< 4.5V
< 9V
= 0
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
10-Pin µMAX (derate 5.6mW/°C above +70°C) ..........444mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)..........667mW
A
= +25°C and V
V
V
FB
FB
MIN
3.0
0.3
10
50
70
70
10
2
3
+ 0.5
+ 1.0
A
= +70°C)
CC
TYP
100
100
200
100
= 5V.)
V
V
V
CC
FB
FB
MAX
150
150
5.5
0.8
+1.5
+3
10
- 0.3
5
8
UNITS
LSB
mA
mA
mA
bits
mA
mV
kΩ
kΩ
kΩ
V
V
V
V
V