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TDA5240T Datasheet, PDF (7/19 Pages) NXP Semiconductors – Brushless DC motor drive circuit | |||
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Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5240T
CHARACTERISTICS
VP = 14.5 V "10%; Tamb = â10 °C to 70 °C, unless otherwise specified
Symbol
Parameter
Conditions
Supply
Min
Typ
Max
Unit
VP
Supply voltage range
IP
Input current range
Thermal protection
note 1
note 2
4
â
18
V
â
5.3
7
mA
TSD
Local temperature at temperature
sensor causing shutâdown
130
140
150
°C
DT
Reduction in temperature
after shutâdown
â
TSDâ30 â
°C
before switchâon
MOT0 â CENTER TAP
VI
Input voltage range
â0.5
â
VP
V
II
Input bias current
0.5 V<VI <VPâ1.5 V
â10
â
â
mA
VCSW
Comparator Switching Level
note 3
20
30
40
mV
DVCS
Variations in comparator switching
levels
â3
0
+3
mV
VH
Comparator input hysteresis
MOT1, MOT2 AND MOT3
â
75
â
mV
VDO
DVOL
DVOH
ILIM
Tr
Voltage drop at 25 °C
IO = 100 mA
â
0.93
1.05
V
(Vout upper stage + Vout lower stage) IO = 500 mA
â
1.65
1.9
V
Variation in voltage between lower
in control mode;
â
â
150
mV
transistors
IO = 100 mA
Variation in voltage between upper in control mode;
â
â
150
mV
transistors
IO = â100 mA
Current limiting
12 V/6.8W
0.6
0.85
1
A
Rise time switching output between
1.9 and 12.2 V
IO = 250 mA
7
12
17
ms
Tf
Fall time switching output between
IO = 250 mA
16
23
30
ms
12.2 and 1.9 V
VDHF
Diode forward voltage (DH)
notes 4 and 5; see Fig. 2; â
â
1.5
V
IO = â500 mA
VDLF
Diode forward voltage (DL)
notes 4 and 5; see Fig. 2; â1.5
â
â
V
IO = 500 mA
IDM
Peak diode current
note 5
â
â
1
A
CTL IN
VCTLIN
VCTLIN0
GTRAN
Input voltage range
Offset voltage
Transfer gain
0
â
VP
V
See Fig. 6
0.7
â
â
V
VCAPCPC v 1.1 V
CAPâCPC = 100 nF
4.5
5
5.5
V/V
VCTLIN = 1.5V and
VCTLIN = 3 V
November 96
7/19
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