TDA5146T Datasheet, PDF (9/18 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5146T
Symbol
CAP–CDM
Parameter
Conditions
Min
Typ
Max
Unit
l_I
I_O
I_I/I_O
V_IL
V_IH
CAP–CDS
Output sink current
Output source current
Ratio of sink to source current
Input voltage level LOW
Input voltage level HIGH
10.6
16.2
22
mA
–5.3
–8.1
–11
mA
1.85
2.05
2.25
0.85
–
0.9
V
2.3
2.4
2.55
V
I_I
Output sink current
I_O
Output source current
I_I/I_O
Ratio of sink to source current
V_IL
Input voltage level LOW
V_IH
Input voltage level HIGH
10.1
15.5
20.9
mA
–20.9
–15.5
–10.1
mA
0.9
1.025
1.15
mA
0.85
–
0.9
V
2.3
2.4
2.55
V
NOTES:
1. An unstabilized supply can be used.
2. V_MOT = V_P, all other inputs at 0V; all outputs at V_P and I_O = 0mA.
3. Switching levels with respect to MOT1, MOT2 and MOT3. See Figure 4.
4. Drivers are in high impedance OFF–state.
5. The outputs are short–circuit protected by limiting the current and the IC temperature.
6. Output transition time measurement. See Figure 5.
Hysteresis 75 mV typ
MOT 1 MOT 2 and MOT 3
Comparators threshold voltage
12.5 V
2V
Tr
Figure 4.
12.5 V
2V
Tf
Figure 5.
1994 May 18
9