AMC8500 Datasheet, PDF (5/27 Pages) List of Unclassifed Manufacturers – TWO PHASE VARIABLE SPEED FAN MOTOR CONTROLLER

Preliminary Specification
aMC8500
100
80
60
40
Figure 1- Motor Drives Percent On-Time
versus Speed Control Input Voltage
Kick Start
1.0 sec.
Motor remains at min
speed setting. Auto
power down disabled.
I_O(Ref) ≥2.0 mA
V_DD = 12 V
Pin 14 = Gnd
T_A = 25°C
Minimum speed set shown
for 1.5 V, 1.7 V, and 1.9 V.
20
0
0
Motor turns on/off at min
speed setting. Auto power
down enabled after 1 sec.
I_O(Ref) ≤1.0 mA
1.0
2.0
3.0
4.0
5.0
V_in(SC), Speed Control Input Voltage (V)
Figure 2- Motor Drives Percent On-Time
versus Speed Control Input Voltage
100
Kick Start
1.0 sec.
80
V_DD = 12 V
60 ^{Pin 14 = Open}
T_A = 25°C
Motor remains at min
speed setting. Auto
power down disabled.
I_O(Ref) ≥2.0 mA
40
Motor turns on/off at
min speed setting.
20 ^{Auto power down}
enabled after 1.0 sec.
I_O(Ref) ≤1.0 mA
Minimum speed set shown
for 2.1 V, 2.3 V, and 2.5 V.
0
0
1.0
2.0
3.0
4.0
5.0
V_in(SC), Speed Control Input Voltage (V)
2.05
2.0
Figure 3- Op Amp
Small Signal Transient Response
V_DD = 12 V
A_V = +1.0
R_L = 10 M
C_L = 10 pF
T_A = 25°C
1.95
1.0 μs/Division
Figure 4- Op Amp
Large Signal Transient Response
V_DD = 12 V
A_V = +1.0
2.5
R_L = 10 M
C_L = 10 pF
T_A = 25°C
2.0
1.5
4.0 μs/Division
Figure 5- Op Amp Source and Sink
Output Voltage versus Current
0
-1.0
High state output
Load to ground
V_DD
V_DD = 12 V
T_A = 25°C
Figure 6- Frequency Generator / Rotor Lock
Low State Output Voltage versus Sink Current
1.0
V_DD = 12 V
T_A = 25°C
0.8
-2.0
0.6
2.0
1.0
0
0
Low state output
Load to V_DD
Gnd
4.0
8.0
12
I_O, Output Load Current (mA)
© Andigilog, Inc. 2006
0.4
0.2
0
16
0
-5-
www.andigilog.com
1.5
3.0
4.5
6.0
I_sink, Sink Current (mA)
August 2006 - 70A04018