TDA5241 Datasheet, PDF (7/19 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5241
CHARACTERISTICS
V_P = 14.5 V "10%; T_amb = –10 °C to 70 °C, unless otherwise specified
Symbol
Parameter
Conditions
Supply
Min
Typ
Max
Unit
V_P
Supply voltage range
I_P
Input current range
Thermal protection
note 1
note 2
4
–
18
V
–
5.3
7
mA
T_SD
Local temperature at temperature
sensor causing shut–down
130
140
150
°C
DT
Reduction in temperature
after shut–down
–
T_SD–30 –
°C
before switch–on
MOT0 – CENTER TAP
V_I
Input voltage range
–0.5
–
V_P
V
I_I
Input bias current
0.5 V<V_I <V_P–1.5 V
–10
–
–
mA
V_CSW
Comparator Switching Level
note 3
20
30
40
mV
DV_CS
Variations in comparator switching
levels
–3
0
+3
mV
V_H
Comparator input hysteresis
MOT1, MOT2 AND MOT3
–
75
–
mV
V_DO
Voltage drop at 25 °C
I_O = 100 mA
–
0.93
1.05
V
(V_out upper stage + V_out lower stage) I_O = 500 mA
–
1.65
1.9
DV_OL
Variation in voltage between lower
in control mode;
–
–
150
mV
transistors
I_O = 100 mA
DV_OH
Variation in voltage between upper in control mode;
–
–
150
mV
transistors
I_O = –100 mA
I_LIM
Current limiting
12 V/6.8W
0.6
0.85
1
A
V_DHF
Diode forward voltage (DH)
notes 4 and 5; see Fig. 2; –
–
1.5
V
I_O = –500 mA
V_DLF
Diode forward voltage (DL)
notes 4 and 5; see Fig. 2; –1.5
–
–
V
I_O = 500 mA
I_DM
Peak diode current
note 5
–
–
1
A
CTL IN
V_CTLIN
V_CTLIN0
G_TRAN
PG IN
Input voltage range
Offset voltage
Transfer gain
0
–
V_P
V
See Fig. 6
0.7
–
–
V
V_CAPCPC v 1.1 V
CAP–CPC = 100 nF
4.5
5
5.5
V/V
V_CTLIN = 1.5V and
V_CTLIN = 3 V
V_I
I_B
R_I
V_CSW
+/–V_IAMP
Input voltage range
Input bias current
Input resistance
Comparator switching level
Comparator input hysteresis
–0.3
–
+5
V
–
–
650
nA
5
–
30
kW
86
93
107
mV
–
8
–
mV
March 1997
7/19