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| 型号： | MCZ33298EGR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 8X LOSIDE W/SPI 24SOIC |
| 标准包装： | 1,000 |
| 系列： | * |
| 应用： | * |
| 接口： | * |
| 电源电压： | * |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
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Document Number: MC33298
Rev. 6.0, 4/2008
Freescale Semiconductor
Technical Data
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
Freescale Semiconductor, Inc., 2007-2008. All rights reserved.
ARCHIVE
INFORMATION
ARCHIVE
INFORMATION
Eight Output Switch with Serial
Peripheral Interface I/O
The 33298 is a smart eight output low side power switch. It is a
versatile device incorporating an 8-bit serial-in shift register to control
an 8-bit parallel output latch providing control of eight independent
"ON/OFF" output switches. Applications include the control of
solenoids, relays, lamps, small DC motors, and other moderate current
loads (1.0 – 3.0A).
The 33298 interfaces directly with a microcontroller to control
various inductive or incandescent loads. Input control is fast. Data
rates are guaranteed to 2.0 MHz but the device is capable of rates to
8.5 MHz @ 25°C.
Each output uses high efficiency MOSFET power transistors
configured with open drains. Each low "ON" resistance output (0.4
Ω
RDS(ON) @ 25°C) is capable of sinking up to 3.0A of transient current.
On a continuous basis, each output can simultaneously (with all
outputs "ON") handle 0.5A of current when the device is soldered onto
a typical PC board. Higher output currents are dependent on the
number of outputs simultaneously "ON". The circuit's innovative
monitoring and protection features include very low standby current.
Features
Designed to operate over wide supply voltages of 5.5 to 26.5V
Interfaces to microprocessor using 8-bit SPI I/O protocol up to
3.0MHz
1.0A peak current outputs with maximum RDS(ON) of 1.8Ω at TJ - 150°C
Outputs current limited to accommodate in-rush currents associated with switching incandescent loads
Output voltages clamped to 65V during inductive switching
Maximum sleep current (IPWR) of 25A
Maximum of 4.0mA IDD during operation
Pb-free packaging designated by suffix code EG
Figure 1. 33298 Simplified Application Diagram
LOW SIDE SWITCH
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42344B
24 SOICW
33298
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33298DW/R2
-40°C to 125°C
24 SOIC
MCZ33298EG/R2
MCU
33298
VDD
V PWR
SFPD
CS
SCLK
SI
RESET
SO
VDD
VPWR
OP 0
OP 1
OP 2
OP 3
OP 4
OP 5
OP 6
OP 7
GND
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