EMC2301 Standard Microsystems Corp., EMC2301 Datasheet - Page 9

• Manufacturer Part Number: EMC2301
• Description: Rpm-based Pwm Fan Controller
• Manufacturer: Standard Microsystems Corp.

RPM-Based PWM Fan Controller
Datasheet
Chapter 2 Electrical Specifications
SMSC EMC2301
2.1
Supply Voltage
Supply Current
PWM Resolution
PWM Duty Cycle
Tachometer Range
Tachometer Setting
Accuracy
CHARACTERISTIC
Voltage on 5V tolerant pins (V
Voltage on 5V tolerant pins (|V
Voltage on VDD pin
Voltage on any other pin to GND
Package Thermal Resistance - Junction to Ambient (θ
Operating Ambient Temperature Range
Storage Temperature Range
ESD Rating, All Pins, HBM
Input High Voltage
Input Low Voltage
V
DD
Note: Stresses above those listed could cause permanent damage to the device. This is a stress
Note 2.1
Electrical Specifications
= 3V to 3.6V, T
rating only and functional operation of the device at any other condition above those indicated
in the operation sections of this specification is not implied.
SYMBOL
For the 5V tolerant pins that have a pull-up resistor, the pull-up voltage must not exceed
3.6V when the EMC2301 is unpowered.
Δ
Δ
DUTY
TACH
PWM
V
I
V
TACH
TACH
V
DD
A
DD
IH
IL
5VT_pin
= -40°C to 125°C, all Typical values at T
5VT_pin
Table 2.1 Absolute Maximum Ratings
)
- V
Table 2.2 Electrical Specifications
MIN
480
2.0
DD
3
0
RPM-based Fan Controller
|) (see
DATASHEET
PWM Fan Driver
Note
TYP
±0.5
DC Power
350
256
3.3
±1
JA
9
2.1)
)
16000
MAX
475
100
3.6
0.8
±1
±2
-0.3 to 5.5
0 to 3.6
-0.3 to 4
-0.3 to VDD + 0.3
141
-40 to 125
-55 to 150
2000
A
Steps
UNIT
RPM
= 27°C unless otherwise noted.
uA
%
%
%
V
V
V
External oscillator 32.768kHz
Internal Oscillator
CONDITIONS
Revision 1.2 (03-22-10)
V
V
V
V
°C/W
°C
°C
V