tpd4120ak TOSHIBA Semiconductor CORPORATION, tpd4120ak Datasheet - Page 11

• Manufacturer Part Number: tpd4120ak
• Description: Toshiba Intelligent Power Device High Voltage Monolithic Silicon Power Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

External Parts
Handling precautions
Typical external parts are shown in the following table.
Note 1: The required bootstrap capacitance value varies according to the motor drive conditions. The capacitor is
Note 2: When using this product, adjustment is required in accordance with the use environment. When mounting,
Note 3: The DIAG pin is open drain. If not using the DIAG pin, connect to the GND.
（１） Please control the input signal in the state to which the V
（２） The excess voltage such as the voltage surge which exceed the maximum rating is added, for
C
1
, C
Part
C
C
C
C
R
R
biased by V
place as close to the base of this product leads as possible to improve the ripple and noise elimination.
2
4
5
6
7
1
2
, C
3
the V
example, may destroy the circuit. Accordingly, be careful of handling this product or of surge voltage
in its application environment.
Note that if the power supply is switched off as described above, this product may be destroyed if
the current regeneration route to the V
disconnected by a relay or similar while the motor is still running.
BB
CC
power supply and the V
and must be sufficiently derated for it.
25 V/1000 pF
25 V/2.2 μF
25 V/0.1 μF
25 V/10 μF
25 V/1 μF
Typical
5.1 kΩ
10 kΩ
CC
V
power supply are not cared about either.
V
REG
V
DIAG pin pull-up resistor
CC
V
SD pin pull-up resistor
REG
CC
Bootstrap capacitor
power supply stability
power supply stability
11
for surge absorber
for surge absorber
Purpose
BB
power supply is blocked when the V
CC
voltage is steady. Both of the order of
Remarks
(Note 1)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 3)
⎯
TPD4120AK
2008-05-16
BB
line is