參數(shù)資料
型號(hào)： 33981
廠商： Motorola, Inc.
英文描述： High-Frequency, High-Current, Self-Protected High-Side Switch (4.0 mз up to 60 kHz)
中文描述： 高頻率，大電流，自我保護(hù)的高邊開(kāi)關(guān)（4.0mз至60千赫）
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 469K
代理商： 33981
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33981
3
TERMINAL DEFINITIONS
Functional descriptions of some of these terminals can be found in the System/Application Information section beginning on
page 19
.
Terminal
Terminal
Name
Formal Name
Definition
1
CSNS
Output Current Monitoring
This terminal is used to output a current proportional to the high-side OUT current and
is used externally to generate a ground-referenced voltage for the microcontroller
(MCU) to monitor OUT current.
2
TEMP
Temperature Feedback
This terminal reports an analog value proportional to the temperature of the GND flag
(terminal 13). It is used by the MCU to monitor board temperature.
3
EN
Enable
(Active High)
This is an input used to place the device in a low current sleep mode. This terminal has
an passive internal pulldown.
4
INHS
Serial Input High Side
The input terminal is used to directly control the OUT. This input has an active internal
pulldown current source and requires CMOS logic levels.
5
FS
Fault Status
(Active Low)
This is an open drain-configured output requiring an external pull-up resistor to
V
DD
(5.0 V) for fault reporting. When a device fault condition is detected, this terminal
is active LOW.
6
INLS
Serial Input Low Side
The input terminal is used to directly control an external low-side N-channel MOSFET
and has an active internal pulldown current source and requires CMOS logic levels. It
can be controlled independently of the INHS depending of CONF terminal.
7
CONF
Configuration Input
This input terminal is used to manage the cross-conduction between the internal high-
side N-channel MOSFET and the external low-side N-channel MOSFET. The terminal
has an active internal pullup current source. When CONF is at 0 V, the two MOSFETs
are controlled independently. When CONF is at 5.0 V, the two MOSFETs cannot be on
at the same time.
8
OCLS
Low-Side Overload
This terminal sets the V
DS
protection level of the external low-side MOSFET. This
terminal has an active internal pullup current source. It must be connected to an
external resistor.
9
DLS
Drain Low Side
This terminal is the drain of the external low-side N-channel MOSFET. Its monitoring
allows for protection features.
10
GLS
Low-Side Gate
This terminal is an output used to drive the gate of the external low-side N-channel
MOSFET.
11
SR
Slew Rate Control
A capacitor connected between this terminal and the ground is used to control the
output slew rate.
CSNS
TEMP
INHS
FS
INLS
CONF
OCLS
DLS
GLS
EN
SR
C
BOOT
1
11
10
9
8
7
6
5
4
3
2
OUT
OUT
16
15
V
PWR
Transparent Top View of Package
14
GND
13
12
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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