MIC502YN Micrel Inc, MIC502YN Datasheet - Page 5

• Manufacturer Part Number: MIC502YN
• Description: IC MANAGEMENT FAN/THERMAL 8DIP
• Manufacturer: Micrel Inc

Specifications of MIC502YN

• Applications: Fan Controller
• Number Of Outputs: 1
• Current - Output: 10mA
• Voltage - Supply: 4 V ~ 13.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Operating Current: 1.5mA
• Operating Temperature Classification: Industrial
• Package Type: PDIP
• Operating Supply Voltage (min): 4V
• Operating Supply Voltage (max): 13.2V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 576-1242

Note H. At power-on, the startup timer forces OUT on for 64 PWM cycles of the internal timebase (t
Note I.
Note J.
Note K. PWM duty-cycle is 100% (OUT constantly on) anytime V
Note L.
Note M. /OTF is deasserted when V
Note N. Duty-cycle follows V
Note O. All functions cease when V
Micrel, Inc.
November 2006
V
V
V
V
V
T1
T2
OU T
OTF
DD
0.7V
0.3V
0.3V
stop.
normal operation continues. (Both V
V
The PWM duty-cycle follows the higher of V
The PWM duty-cycle follows V
/OTF is asserted anytime V
V
V
V
V
V
V
V
S L P
0V
V
0V
0V
0V
OH
OH
OT
DD
DD
DD
O L
O L
DD
IH
IL
H
t
S T A R T U P
100%
T1
until V
40%
T1
T1
T1
T1
< V
> V
falls below V
T1
I
< V
as it increases.
IL
40%
OT
Figure 2. MIC502 Typical Power-Up System Behavior
; this occurs regardless of the state of V
T2
t
. (The fan continues to run at 100% duty-cycle).
PW M
, at which time V
60%
T1
and V
OT
T1
; duty-cycle once again follows V
T2
and V
J
must be below V
60%
T2
T2
, in the case, V
K
becomes the controlling input signal. Note that V
T1
> V
PWM(max)
L
SLP
to active sleep mode).
5
100%
T1
.
.
T2
.
T1
.
M
PWM
). This insures that the fan will start from a dead
N
30%
T1
is below V
30%
O
SLP
0%
but above V
M9999-112206
100%
PWM
Range
20%
0%
Output
Duty Cycle
MIC502
IH
; so