參數(shù)資料
型號(hào)： HA13609ANT
廠商： Hitachi,Ltd.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Three-Phase Brushless Motor Driver
中文描述： 三相無(wú)刷電機(jī)驅(qū)動(dòng)器
文件頁(yè)數(shù)： 20/31頁(yè)
文件大小： 143K
代理商： HA13609ANT
HA13609ANT
20
13.When setting up the current limiter filter consisting of R120 and C107, R120 should be 4.7k
or
larger, and C107 and R120 should function as a filter for the recovery current. This filter masks
the recovery current due to internal circuits for the current limiter input (pin 26) and the C107
discharge operation determines the PWM off time (by making the current limiter input a low
impedance). See the figures.
1/f
PWM
Output (
U
to
W
)
V
RNF
Current limiter input
voltage (pin 26)
C107 discharge
t
MASK
t
MASK
≈
0 V
ON
ON
For recovery current masking:
48
fosc
t
MASK
=
[SEC]
64
fosc
to
@MD8 = 1
24
fosc
t
MASK
=
[SEC]
32
fosc
to
@MD8 = 0
14.Use the formula below as a guideline for determining the values of R103, R104, and R122 to
R124 when a Hall IC is used.
R103 // R104 = R122 to R124 < 20k
15.Take the current limiter input current (see the electrical characteristics) into consideration when
determining the values for R106 and R107.
16.Determine the values of R108 to R119 based on the characteristics of the output power
transistors used and the output driver characteristics (see the electrical characteristics).
17.Design the wiring in applications so that the potential of the pin 11 ground (the small-signal
ground) does not become higher than that of the pin 30 ground (the output stage ground) as
shown in the figure.
11
30
V
SS
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