MC33988CHFKR2 Freescale Semiconductor, MC33988CHFKR2 Datasheet - Page 28

• Manufacturer Part Number: MC33988CHFKR2
• Description: Power Switch ICs - Power Distribution DUAL 8MOHMS SMART
• Manufacturer: Freescale Semiconductor

Specifications of MC33988CHFKR2

• Rohs: yes
• On Resistance (max): 20.4 mOhms
• Operating Supply Voltage: 6 V to 27 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: PQFN-16
• Minimum Operating Temperature: - 40 C

The 33988 can be configured in several applications. The figure below shows the 33988 in a typical main switch application.
normal operating condition as junction temperature from -40
to 150°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.
load inductance for single-pulse method, based on lab
characterization results. When driving DC motor or Solenoid
loads demanding multiple switching, an external recirculation
device must be used to maintain the device in its Safe
Operating Area.
28
33988
TYPICAL APPLICATIONS
The loads must be chosen in order to guarantee the device
Figure 13
describes the maximum turn-off current versus
MCU
SCLK
V
DD
A/D
SO
I/O
I/O
CS
I/O
I/O
SI
V
PWR
2.2k
V
DD
10k
Regulator
NC V
Voltage
1k
10k
10k
10k
10k
10k
10k
100nF
PWR
TYPICAL APPLICATIONS
Figure 12. Typical Applications
V
10µF
DD
RFS
V
12
11
2
4
8
7
3
9
5
1
6
DD
10
VDD
WAKE
IN0
IN1
SCLK
CS
RST
SO
SI
FS
CSNS
FSI
• propose safe configurations of the eXtreme Switch
• provide guidelines for Printed Circuit Board (PCB) design
optimize the board design and PCB layout in order to reach
electromagnetic compatibility standards (emission and
immunity).
Two application notes are available in order to:
devices in case of application faults and protect all circuitry
with minimum external components (AN 3274),
and assembly (AN 2469).
Development effort will be required by the end users to
33988
VPWR
GND
HS1
HS0
14
15
16
13
V
2.5µF
PWR
Analog Integrated Circuit Device Data
LOAD
10nF
Freescale Semiconductor
LOAD