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33880_12

更新时间: 2022-05-13 19:59:25
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 开关
页数 文件大小 规格书
25页 590K
描述
Configurable Octal Serial Switch with Serial Peripheral Interface I/O

33880_12 数据手册

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Document Number: MC33880  
Rev. 8.0, 5/2012  
Freescale Semiconductor  
Technical Data  
Configurable Octal Serial Switch  
with Serial Peripheral Interface  
I/O  
33880  
The 33880 device is an 8-output hardware configurable high side/  
low side switch with 8-bit serial input control using the serial peripheral  
interface (SPI). Two of the outputs can be controlled directly via  
microcontroller for pulse-width modulation (PWM) applications.  
HIGH/LOW SIDE SWITCH  
The 33880 controls various inductive or incandescent loads by  
directly interfacing with a microcontroller.  
The circuit's innovative monitoring and protection features include  
very low standby currents, “cascadable” fault reporting, internal 40 V  
output clamping for low side configurations, internal -20 V output  
clamping for high side configurations, output specific diagnostics, and  
independent shutdown of outputs.  
EG SUFFIX (PB-FREE)  
EW SUFFIX (PB-FREE)  
98ARH99137A  
98ASB42345B  
28-PIN SOICW  
Features  
32-PIN SOICW  
• Designed to operate 5.5 V < VPWR < 24.5 V  
• 8-bit SPI for control and fault reporting, 3.3/5.0 V compatible  
• Outputs are current limited (0.8 A to 2.0 A) to drive incandescent  
lamps  
• Output voltage clamp is +45 V (typical) (low side drive) and -20 V  
(typical) (high side drive) during inductive switching  
• Internal reverse battery protection on VPWR  
• Loss of ground or supply will not energize loads or damage IC  
• Maximum 5.0 μA IPWR standby current at 13 V VPWR up to 95 °C  
• RDS(ON) of 0.55 Ω at 25 °C typical  
ORDERING INFORMATION  
Device  
(For Tape and Reel, add  
an R2 Suffix)  
Temperature  
Range (T )  
A
Package  
MC33880PEG  
MC33880PEW  
28 SOICW  
32 SOICW  
-40°C to 125°C  
• Short circuit detect and current limit with autoretry  
• Independent over-temperature protection  
• 32-pin SOICW has pins 8, 9, 24, and 25 grounded for thermal  
performance  
V
V
S
PWR  
33880  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
D8  
S1  
S2  
S3  
S4  
S5  
S6  
S7  
S8  
VPWR  
5.0 V  
High-Side  
VDD  
5.0 V  
EN  
CS  
SCLK  
DI  
MOT  
H-Bridge  
MCU  
SPI I/O  
DO  
IN5  
IN6  
GND  
PWM  
Low-Side  
All Output Switches are High- or Low-Side Configurable  
Figure 1. 33880 Simplified Application Diagram  
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., 2009-2012. All rights reserved.  

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