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參數(shù)資料
| 型號： | 908E625 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication |
| 中文描述： | 綜合四半僅符合電源橋，嵌入式微控制器和LIN串行通信 |
| 文件頁數(shù)： | 32/48頁 |
| 文件大?。?/td> | 615K |
| 代理商： | 908E625 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
32
908E625
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
1 = Hall-effect sensor input terminal current above
threshold
0 = Hall-effect sensor input terminal current below
threshold
HALF-BRIDGES
Outputs HB1:HB4 provide four low-resistive half-bridge
output stages. The half-bridges can be used in H-Bridge,
high-side, or low-side configurations.
Reset clears all bits in the H-Bridge Output Register
(HBOUT) owing to the fact that all half-bridge outputs are
switched off.
HB1:HB4 output features:
Short circuit (overcurrent) protection on high-side and
low-side MOSFETs
Current recopy feature (low side MOSFET)
Overtemperature protection
Overvoltage and undervoltage protection
Current limitation feature (low side MOSFET)
Figure 17. Half-Bridge Push-Pull Output Driver
HALF-BRIDGE CONTROL
Each output MOSFET can be controlled individually. The
general enable of the circuitry is done by setting PSON in the
System Control Register (SYSCTL). HBx_L and HBx_H form
one half-bridge. It is not possible to switch on both MOSFETs
in one half-bridge at the same time. If both bits are set, the
high-side MOSFET has a higher priority.
To avoid both MOSFETs (high side and low side) of one
half-bridge being on at the same time, a break-before-make
circuit exists.
Switching the high-side MOSFET on is inhibited
as long as the potential between gate and V
SS
is not below a
certain threshold. Switching the low-side MOSFET on is
blocked as long as the potential between gate and source of
the high-side MOSFET did not fall below a certain threshold.
HALF-BRIDGE OUTPUT REGISTER (HBOUT)
Low-Side On/Off Bits (HBx_L)
These read/write bits turn on the low-side MOSFETs.
Reset clears the HBx_L bits.
High-Side Driver
Charge Pump,
Overtemperature Protection,
Overcurrent Protection
Low-Side Driver
Current Recopy,
Current Limitation,
Overcurrent Protection
Control
On/Off
Status
On/Off
Status
Current
Limit
HBx
VSUP
GND
BEMF
Register Name and Address: HBOUT - $01
Bits
7
6
5
4
3
2
1
0
Read
HB4
_
H
HB4
_
L
HB3
_
H
HB3
_
L
HB2
_
H
HB2
_
L
HB1
_
H
HB1
_
L
Write
Reset
0
0
0
0
0
0
0
0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 908E625_07 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication |
| 908E625_10 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication |
| 908E626 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication |
| 908E626_08 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication |
| 908E626_09 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication |
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