EMC2300-AZC SMSC, EMC2300-AZC Datasheet - Page 75

• Manufacturer Part Number: EMC2300-AZC
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC2300-AZC

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Fan Control Device with High Frequency PWM and Temperature Monitors
Datasheet
Chapter 9 Timing Diagrams
SMSC EMC2300
9.1
NAME
t1
t2
PWM Outputs
The following section shows the timing for the PWM[1:3] outputs.
Note 9.1
Note 9.2
FANx
PWM Period
PWM High Time
This value is programmable by the PWM frequency bits located in the FRFx registers.
The PWM High Time is based on a percentage of the total PWM period (min=0/256*T
max =255/256*T
(T
PWM
(Note
DESCRIPTION
(Note
= t1).
9.1)
Table 9.1 Timing for PWM[1:3] Outputs
9.2)
Figure 9.1 PWMx Output Timing
t2
PWM
). During Spin-up the PWM High Time can reach a 100% or Full On.
DATASHEET
t1
75
0.04
MIN
0
TYP
Revision 0.32 (06-23-08)
MAX
90.9
99.6
UNITS
msec
%
PWM
,