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MC33879APEK bảng dữ liệu(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC33879APEK bảng dữ liệu(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 23 page Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. Document Number: MC33879 Rev. 9.0, 5/2012 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2009-2012. All rights reserved. Configurable Octal Serial Switch with Open Load Detect Current Disable The 33879 device is an 8-output hardware configurable, high side/ low side switch with 16-bit serial input control using the serial peripheral interface (SPI). Two of the outputs may be controlled directly via a microcontroller for pulse-width modulation (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. Features • 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 • Output voltage clamp, +45 V (low side) and -20 V (high side) during inductive switching • 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 I PWR standby current at 13 V VPWR •RDS(ON) of 0.75 Ω at 25 °C typical • Short-circuit detect and current limit with automatic retry • Independent over-temperature protection Figure 1. 33879 Simplified Application Diagram HIGH SIDE/ LOW SIDE SWITCH EK SUFFIX (PB-FREE) 98ARL10543D 32-PIN SOICW 33879 33879A ORDERING INFORMATION Device (For Tape and Reel, add an R2 Suffix) Temperature Range (TA) Package MC33879APEK -40 °C to 125°C 32 SOICW-EP MC33879TEK MCU A0 MOSI SCLK CS MISO PWM1 PWM2 5.0 V VPWR 33879 VDD VPWR EN DI SCLK D0 IN5 IN6 GND D1 D2 D3 D4 S1 S2 S3 S4 D5 D6 D7 D8 S5 S6 S7 S8 M CS VBAT VBAT VBAT High Side Drive Low Side Drive H-Bridge Configuration |
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