Preliminary Specification
- 1 -
© Andigilog, Inc. 2007
www.andigilog.com
February 2007 - 70A06002
aMC8510
SINGLE PHASE VARIABLE SPEED
FAN MOTOR CONTROLLER
Product Description
The aMC8510 is a full featured monolithic brushless DC
motor controller containing all the required driver functions to
implement fan speed control. This device features a
selectable slope pulse width modulator (PWM) for efficient
speed control that is compatible with analog and digital
control signals, programmable minimum speed setting,
selectable automatic fan power down mode for power
sensitive applications, latching PWM for enhanced noise
immunity, integrated fault timer with auto start retry, adaptive
motor kick start timer to insure start up, combined frequency
generator / rotor lock output, Hall amplifier with propriety
noise
immunity
circuitry
for
proper
drive
sequencing,
compatibility with differential non-buffered and buffered
sensors, op amp and pinned out reference for thermal sensor
voltage scaling, fixed non-overlapping commutation delay for
reduced power supply current spiking, two 40 V open drain
top drive outputs, two 100 mA complementary bottom drive
outputs that are ideally suited for driving power MOSFETs,
programmable cycle-by-cycle current limiting, under voltage
lockout and thermal shutdown protection, and an internal
shunt regulator for use with higher voltage motors.
Features
• Analog and digital speed control signal compatibility
• Selectable PWM speed control slope
• Programmable minimum speed setting
• Selectable automatic fan power down mode
• Latching PWM for enhanced noise immunity
• Integrated fault timer with auto start retry
• Adaptive motor kick start timer
• Combined frequency generator / rotor lock output
• Hall amplifier with propriety noise immunity circuitry
• Differential unbuffered and digital Hall compatibility
• Op amp and pinned out reference
• Two 40 V open drain top drive outputs
• Two 100 mA complementary bottom drive outputs
• Programmable cycle-by-cycle current limit protection
• Under voltage lockout
• Thermal shutdown protection
• Internal shunt regulator for higher voltage motors
• MSL-1 per JEDEC J-STD-020C
• Pb-free Matte Sn lead finish & RoHS Compliant Packages
•
Pin Configuration
Applications
•
PC, workstation and mainframe fans
•
Telcom, LAN server fans and blowers
•
Industrial control, card racks and instrumentation
Ordering Information
Part Number
Package
Junction Temperature Range
Marking
aMC8510D16
SOIC 16 Lead
aMC8510QS16
QSOP 16 Lead
-40°C to 150°C
aMC8510
Ayww
Ayww – Assembly site, year, workweek
Minimum
Speed Set
Phase 2
Top Drive
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
Phase 1
Phase 2
Bottom Drive
Bottom Drive
Phase 1
VDD
Current Sense
Input
Top Drive
Slope Select
aMC8510
Hall +
Reference
Output
Ground
Hall -
Freq Gen.
Non-Inverting
Input
Op Amp Output/
Inverting
Speed Control
Input
Input
Rotor Lock
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