TA8050F Toshiba, TA8050F Datasheet - Page 3

• Manufacturer Part Number: TA8050F
• Manufacturer: Toshiba

Specifications of TA8050F

• Lead Free Status / RoHS Status: Not Compliant

Description of Multi-Protective Operation
functions protect the IC (and the motor load in some cases) from deterioration or destruction due to power-related
overstress.
The TA8050F has functions for protection from overvoltage (V
The three functions work independently.
Each function is explained below.
1. Overvoltage protection (V
2. Overheat protection (T
●
●
●
●
Basic operation
When the voltage supplied to the V
the input signals. However, when the V
high-impedance state regardless of the input signals.
Detailed explanation
The V
with a resistor. When the center voltage of the resistor is higher than the Zener voltage, a transistor-off
instruction is issued to the control logic. When it is lower than the Zener voltage, the logic is controlled
by the input signals from DI1 and DI2.
Basic operation
When the junction (chip) temperature is up to the T
by the input signals. When it exceeds the T
state regardless of the input signals.
Detailed explanation
The temperature is detected by monitoring V
the internal reference voltage, an output transistor-off instruction is issued to the control logic. When it
is higher than the internal reference voltage, the logic is controlled by the input signals from DI1 and
DI2.
SD
voltage is detected by comparing the Zener voltage with the voltage obtained by dividing V
V
T
I
SD
SD
SD
SD
)
SD
CONTROL LOGIC
DI1
)
CC
pin is up to the V
CC
DI2
voltage exceeds the detection voltage, the output enters
SD
F
3
detection temperature, the output enters high-impedance
of a diode on the chip. When the diode V
M (+)
SD
SD
detection temperature, the output is controlled
), overcurent (I
SD
detection voltage, the output is controlled by
M (-)
SD
), and overheat (T
F
is lower than
2002-02-27
TA8050F
SD
). These
CC