OPERATIONAL MODES HALF-BRIDGES Outputs HB" />
參數(shù)資料
型號(hào)： MM908E626AVEK
廠商： Freescale Semiconductor
文件頁數(shù)： 18/43頁
文件大小： 0K
描述： IC STEPPER MOTOR DRIVER 54-SOIC
標(biāo)準(zhǔn)包裝： 26
應(yīng)用： 自動(dòng)鏡像控制
核心處理器： HC08
程序存儲(chǔ)器類型： 閃存（16 kB）
控制器系列： 908E
RAM 容量： 512 x 8
接口： SCI，SPI
輸入/輸出數(shù)： 13
電源電壓： 8 V ~ 18 V
工作溫度： -40°C ~ 115°C
安裝類型： 表面貼裝
封裝/外殼： 54-BSSOP（0.295"，7.50mm 寬）裸露焊盤
包裝： 管件
供應(yīng)商設(shè)備封裝： 54-SOICW-EP
產(chǎn)品目錄頁面： 808 (CN2011-ZH PDF)
Analog Integrated Circuit Device Data
Freescale Semiconductor
25
908E626
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
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 12. 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 VSS 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)
HBx_L—Low Side On/Off Bits
These read/write bits turn on the low side MOSFETs.
Reset clears the HBx_L bits.
1 = Low side MOSFET turned on for half-bridge output
x.
0 = Low side MOSFET turned off for half-bridge output
x.
High Side Driver
Charge Pump,
Over-temperature Protection,
Over-current Protection
Low Side Driver
Current Recopy,
Current Limitation,
Over-current Protection
Control
On/Off
Status
On/Off
Status
Current
Limit
HBx
VSUP
GND
BEMF
Register Name and Address: HBOUT - $01
Bit7
6
5
4
3
2
1
Bit0
Read
HB4_H HB4_L HB3_H HB3_L HB2_H HB2_L HB1_H HB1_L
Write
Reset
0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MM908E626AVPEK 功能描述:8位微控制器 -MCU MCU + LIN + MOTOR DRIVER RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MM908E626AVPEKR2 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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MM90R9F 制造商:Ohmite Mfg Co 功能描述:
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