ZXBM2001_04 Datasheet, PDF (2/10 Pages) Zetex Semiconductors – VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER

ZXBM2001
ZXBM2002 ZXBM2003
Absolute maximum ratings
Parameter
Supply Voltage
Input Current
Power Dissipation 25°C
Operating Temp.
Storage Temp.
Symbol
V_CCmax
I_CCmax
P_Dmax
T_OPR
T_STG
Power Dissipation
1) Maximum allowable Power Dissipation, PD,
is shown plotted against Ambient Temperature,
TA, in the accompanying Power Derating Curve,
indicating the Safe Operating Area for the device.
2) Power consumed by the device, PT, can be
calculated from the equation:
PT = PQ + PPh
where
PQ is power dissipated under quiescent
current conditions, given by:
PQ = VCC x ICC
where VCC is the application
device Supply Voltage
and ICC is the maximum Supply
Current given in the Electrical
Characteristics
and PPh is power generated due to either one of
the phase outputs Ph1 or Ph2 being
active, given by:
PPh = IOL x VOL
where
and
IOL is the application Ph1 and Ph2
output currents
VOL is the maximum Low Level
Output Voltage for the Ph1 and
Ph2 outputs given in the Electrical
Characteristics
Limits
-0.6 to 20
200
500
-40 to 85
-55 to 150
Unit
V
mA
mW
ЊC
ЊC
SEMICONDUCTORS
ISSUE 4 - OCTOBER 2004
2