- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383873 > SZA1015TT Transient Voltage Suppressor Diodes PDF資料下載
參數(shù)資料
| 型號： | SZA1015TT |
| 元件分類： | TVS-瞬態(tài)抑制二極管 |
| 英文描述： | Transient Voltage Suppressor Diodes |
| 中文描述： | 電機控制器 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 97K |
| 代理商： | SZA1015TT |
2001 Jul 11
8
Philips Semiconductors
Product specification
Brushless Motor Controller (BMC12)
SZA1015
FG generator
The FG generator output shows a frequency which
depends on the number of Hall signals (three) and the
number of pole pairs (N
PP
). The formula to determine the
motor frequency is as follows:
The FG has an open-drain output for easy interfacing to
3 V and 5 V logic.
Thermal shutdown
The thermal shutdown block sets all outputs to 3-state
mode if the junction temperature of the BMC12 exceeds
155
°
C (typical). There is a hysteresis of 15
°
C (typical)
between the temperatures at which the thermal shutdown
activates and deactivates. As soon as the thermal
shutdown deactivates, the commutation control continues
its operation.
Oscillator
The RC oscillator uses two external components
(R
OSC
and C
OSC
) to fix its frequency. To ensure a stable
oscillator frequency the oscillator and R
OSC
both use a
reference current made by the current reference block.
The nominal frequency is 3 MHz with R
OSC
= 47 k
(2% tolerance) and C
OSC
= 100 pF (5% tolerance). The
values of the external components for the oscillator are
fixed. The oscillator can be overruled by applying a 3 MHz
clock to pin COSC (R
OSC
is used to determine
I
LIM
and R
EMF
and should always be connected).
Start/stop function
At pin START = LOW, the BMC12 can be set to a power
saving mode, reducing the current consumption. In the
power saving mode the outputs will be in 3-state.
DC-DC converter
The on-board DC-DC converter generates a voltage of
approximately 2
×
V
DDM
1.2 V with a maximum voltage
of 19.3 V typical (internal clamp circuit). This voltage is
used internal to switch the upper drivers of the U, V and W
outputs.
f
motor
PP
3
=
相關PDF資料 |
PDF描述 |
|---|---|
| T-51382D064-FW-P-AB | SENSOR HI-IMP 30PSIA DIP PKG |
| T-51750GD065J-FW-AA | LCD Module |
| T0220 | Fit Rate / Equivalent Device Hours |
| T0247 | Fit Rate / Equivalent Device Hours |
| T1070HV | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SZ-A11 | 制造商:Fuji Electric 功能描述: |
| SZ-A11/T | 制造商:Fuji Electric 功能描述: |
| SZ-A111 | 制造商:Fuji Electric 功能描述:Auxiliary Contact Block |
| SZ-A11Y | 制造商:Fuji Electric 功能描述: |
| SZ-A20 | 制造商:Fuji Electric 功能描述:Auxiliary Contact Block |
發(fā)布緊急采購，3分鐘左右您將得到回復。