TA84006F Datasheet, PDF (7/21 Pages) Toshiba Semiconductor – Three-Phase Wave Motor Driver IC

Functions
IN-P
Input
IN-N
High
Low
High
Low
High
High
Low
Low
TA84006F/FG
Upper Power
Transistor
ON
ON
OFF
OFF
Output
Lower Power
Transistor
OFF
ON
OFF
ON
High
Prohibit mode (Note 4)
High impedance
Low
Connecting the TB6548F/FG (or TB6537P/PG/F/FG) to the TA84006F/FG allows electric motors to be controlled
by PWM.
Note 4: In Prohibit Mode, the output power transistor goes into vertical ON mode and through current may damage
the circuit. Do not use the TA84006F/FG in this mode.
This mode is not actuated when the TA84006F/FG is connected to the TB6548F/FG or TB6537P/PG/F/FG,
but can be triggered by input noise during standalone testing.
<Schematic>
OUT-P
Low active
TB6548F/FG
(TB6537P/
PG/F/FG)
IN-P
VM
OUT
<Lower PWM>
Connecting the TA84006F/FG to the TB6537P/PG/F/FG controls the lower PWM.
At chopping ON, the diagonally output power transistors are ON.
At chopping OFF, the lower transistor is OFF, regenerating the motor current via the upper diode
(incorporating the Pch-MOS).
ON
Pch-MOS
OFF
OUT-N
High active
IN-N _VM
OFF
V_OUT
<Coil current route>
When chopping is ON
When chopping is OFF
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2004-08-10