TDA5140A Datasheet, PDF (9/24 Pages) NXP Semiconductors – Brushless DC motor drive circuit

Philips Semiconductors
Brushless DC motor drive circuit
Product specification
TDA5140A
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
CAP-CD
I_sink
I_source
I_sink/I_source
V_IL
V_IH
output sink current
output source current
ratio of sink to source current
LOW level input voltage
HIGH level input voltage
10.6 16.2
−5.3 −8.1
1.85 2.05
850 875
2.3
2.4
CAP-DC
I_sink
I_source
I_sink/I_source
V_IL
V_IH
output sink current
output source current
ratio of sink to source current
LOW level input voltage
HIGH level input voltage
10.1
−20.9
0.9
850
2.3
15.5
−15.5
1.025
875
2.4
Notes
1. An unstabilized supply can be used.
2. V_VMOT = V_P, all other inputs at 0 V; all outputs at V_P; I_O = 0 mA.
3. Switching levels with respect to MOT1, MOT2 and MOT3.
4. Drivers are in the high-impedance OFF-state.
5. The outputs are short-circuit protected by limiting the current and the IC temperature.
MAX. UNIT
22
µA
−11
µA
2.25
900
mV
2.55
V
20.9
µA
−10.1 µA
1.15
900
mV
2.55
V
APPLICATION INFORMATION
(1) Value selected for 3 Hz start-up oscillator frequency.
Fig.6 Application diagram without use of the operational transconductance amplifier (OTA).
April 1994
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