Datasheet > 33879A

33879A

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		开关
页数	文件大小	规格书
24页	497K
描述
Configurable Octal Serial Switch with Open Load Detect Current Disable

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33879A 数据手册

Document Number: MC33879

Rev 6.0, 6/2007

Freescale Semiconductor

Advance Information

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 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 overtemperature protection.

HIGH SIDE/ LOW SIDE SWITCH

Features

DWB SUFFIX EXPOSED PAD

EK SUFFIX (PB-FREE)

98ARL10543D

• Designed to Operate 5.5 V < V_PWR< 26.5 V

• 16-Bit SPI for Control and Fault Reporting, 3.3 V/5.0 V

Compatible

32-PIN SOICW

• Outputs Are Current Limited (0.6 A to 1.2 A) to Drive

Incandescent Lamps

• Output Voltage Clamp, +45 V (Low Side) and -20 V (High Side)

During Inductive Switching

ORDERING INFORMATION

Temperature

Device

Package

Range (T )

• On/Off Control of Open Load Detect Current (LED Application)

• Internal Reverse Battery Protection on V_PWR

• Loss of Ground or Supply Will Not Energize Loads or Damage IC

• Maximum 5.0 µA I_PWRStandby Current at 13 V V_PWR

• R_DS(ON)of 0.75 Ω at 25°C Typical

MC33879EK/R2

MCZ33879EK/R2

MCZ33879AEK/R2

-40°C to 125°C

32 SOICW-EP

• Short Circuit Detect and Current Limit with Automatic Retry

• Independent Overtemperature Protection

• Pb-Free Packaging Designated by Suffix Code EK

PWR

BAT

+5.0 V

33879

VDD VPWR

MCU

SCLK

High-Side Drive

MOSI

SCLK

MISO

PWM1

PWM2

H-Bridge Configuration

IN5

IN6

BAT

Low-Side Drive

GND

Figure 1. 33879 Simplified Application Diagram

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

12 3 4 5 6 7...24

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