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MC33874BPNA Datasheet

  • MC33874BPNA

  • Freescale Semiconductor, Inc [Quad High-Side Switch (Quad 3...

  • FREESCALE

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TYPICAL APPLICATION
INTRODUCTION
TYPICAL APPLICATION
INTRODUCTION
The 33874 can be configured in several applications. The figure below shows the 33874 in a typical lighting application.
V
PWR
V
DD
Voltage regulator
V
DD
V
DD
V
DD
10k
V
DD
I/O
I/O
I/O
I/O
I/O
SCLK
CS
I/O
SO
SI
A/D
A/D
1k
R1
10k
10k
10k
10k
10k
10k
10k
10k
10k
100nF
10碌F
NC
WAKE
FS
IN0
IN1
IN2
IN3
SCLK
CS
RST
SI
SO
TEMP
CSNS
FSI
33874
HS0
V
PWR
V
PWR
V
DD
V
PWR
100nF
LOAD 0
21W
HS1
5W
Microcontroller
LOAD 1
21W
HS2
5W
LOAD 2
21W
HS3
5W
GND
LOAD 3
21W
5W
Automotive lamps do not tolerate high voltages very well. Tests of a few lamps indicate that failures can occur when
18V is applied for a few seconds. Consequently, PWM switching reduces the effective RMS voltage in order to drive
bulbs safety.
For example, to maintain the power dissipation associated with a 13V battery at 100% duty cycle, the duty cycle
would be adjusted to (13/18)虜, or 52%, when the battery is at 18V.
The loads must be chosen in order to guarantee the device normal operating condition as junction temperature
from -40 to 150 擄C. In case of permanent short-circuit conditions, the duration and number of activation cycles must
be limited with a dedicated MCU fault management using the fault reporting through SPI.
33874
28
Analog Integrated Circuit Device Data
Freescale Semiconductor

MC33874BPNA PDF文件相關(guān)型號(hào)

MC33874BPNAR2

MC33874BPNA 產(chǎn)品屬性

  • 168

  • 集成電路 (IC)

  • PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 內(nèi)部開關(guān)

  • -

  • 高端

  • SPI

  • 4

  • 35 毫歐

  • -

  • -

  • 6 V ~ 27 V

  • -40°C ~ 125°C

  • 表面貼裝

  • 24-PowerQFN

  • 24-PQFN（12x12）

  • 托盤

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