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MC33879EK/R2 PDF预览

MC33879EK/R2

更新时间: 2024-09-26 12:49:55
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 开关
页数 文件大小 规格书
23页 804K
描述
Configurable Octal Serial Switch with Open Load Detect Current Disable

MC33879EK/R2 数据手册

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Document Number: MC33879  
Rev. 8.0, 10/2009  
Freescale Semiconductor  
Technical Data  
Configurable Octal Serial Switch  
with Open Load Detect Current  
Disable  
33879  
33879A  
The 33879 device is an 8-output hardware configurable, high side/  
low side switch with 16-bit serial input control. Two of the outputs may  
be controlled directly via a microprocessor for PWM applications. The  
33879 incorporates SMARTMOS technology, with CMOS logic,  
bipolar/MOS analog circuitry, and DMOS power MOSFETs. The 33879  
controls various inductive, incandescent, or LED loads by directly  
interfacing with a microcontroller. The circuit’s innovative monitoring  
and protection features include very low standby currents, cascade  
fault reporting, internal +45 V clamp voltage for low side configuration,  
-20 V high side configuration, output specific diagnostics, and  
independent over-temperature protection.  
HIGH SIDE/ LOW SIDE SWITCH  
Features  
DWB SUFFIX EXPOSED PAD  
EK SUFFIX (PB-FREE)  
98ARL10543D  
• Designed to operate 5.5 V < VPWR < 26.5 V  
• 16-Bit SPI for control and fault reporting, 3.3 V/5.0 V compatible  
• Outputs are current limited (0.6 A to 1.2 A) to drive incandescent  
lamps  
32-PIN SOICW  
ORDERING INFORMATION  
Temperature  
• Output voltage clamp, +45 V (Low Side) and -20 V (High Side)  
during inductive switching  
Device  
Package  
• On/Off control of open load detect current (LED application)  
• 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  
• RDS(ON) of 0.75 Ω at 25°C typical  
Range (T )  
A
MC33879EK/R2  
MCZ33879EK/R2  
MCZ33879AEK/R2  
-40°C to 125°C  
32 SOICW-EP  
• Short-circuit detect and current limit with automatic retry  
• Independent over-temperature protection  
• Pb-free packaging designated by suffix code EK  
V
PWR  
V
BAT  
+5.0 V  
33879  
VDD VPWR  
D1  
D2  
D3  
D4  
S1  
S2  
S3  
S4  
MCU  
A0  
EN  
DI  
SCLK  
CS  
High-Side Drive  
MOSI  
SCLK  
CS  
MISO  
PWM1  
PWM2  
DO  
H-Bridge Configuration  
V
M
IN5  
IN6  
D5  
D6  
D7  
D8  
S5  
S6  
S7  
S8  
BAT  
V
BAT  
Low-Side Drive  
GND  
Figure 1. 33879 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. All rights reserved.  

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