Details, datasheet, quote on part number: MC33880
CategoryCommunication => Telephony => Line Interface
DescriptionConfigurable Octal Serial Switch With Serial Peripheral Interface
CompanyMotorola Semiconductor Products
DatasheetDownload MC33880 datasheet
Cross ref.Similar parts: TLE7238SL
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Features, Applications

Advance Information Configurable Octal Serial Switch with Serial Peripheral Interface I/O

The 33880 device is an eight-output hardware configurable high-side/lowside switch with 8-bit serial input control. Two of the outputs may be controlled directly via microprocessor for PWM applications. The 33880 incorporates SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and DMOS power MOSFETs. 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, cascade fault reporting, output-specific diagnostics, and independent shutdown of output. Features Designed to Operate V < VPWR V 8-Bit SPI for Control and Fault Reporting, V/5.0 V Compatible Outputs Are Current Limited A) to Drive Incandescent Lamps Output Voltage Clamp +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 A IPWR Standby Current 13 V VPWR to 95C RDS(ON) at 25C Typical Short Circuit Detect and Current Limit with Automatic Retry Independent Overtemperature Protection 32-Pin SOIC Has Pins 9, 24, and 25 Grounded for Thermal Performance

Device MC33880DW/R2 MC33880DWB/R2 Temperature Range (TA) to 125C Package 28 SOIC 32 SOIC
Simplified Application Diagram 33880 Simplified Application Diagram

This document contains certain information on a new product. Specifications and information herein are subject to change without notice. Motorola, Inc. 2004


Pin Name GND VDD IN6 EN SCLK D7 S7 Digital ground. Logic supply voltage. Logic supply must be switched off for low current mode (VDD below 3.9 V). Output 8 MOSFET source pins. Output 8 MOSFET drain pin. Output 2 MOSFET source pin. Output 2 MOSFET drain pin. Output 1 MOSFET source pin. Output 1 MOSFET drain pin. Output 6 MOSFET drain pin. Output 6 MOSFET source pin. PWM direct control input pin for output IN6 is "OR" with SPI bit. Enable input. Allows control of outputs. Active high. SPI control clock input pin. SPI control data input pin from MCU to the 33880. Logic [1] activates output. SPI control chip select input pin from MCU to the 33880. Logic [0] allows data to be transferred in. PWM direct control input pin for output IN5 is "OR" with SPI bit. Output 5 MOSFET source pin. Output 5 MOSFET drain pin. Output 3 MOSFET drain pin. Output 3 MOSFET source pin. Output 4 MOSFET drain pin. Output 4 MOSFET source pin. Output 7 MOSFET drain pin. Output 7 MOSFET source pins. Description



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