33981B 查看數據表（PDF） - Motorola => Freescale
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33981B Datasheet PDF : 24 Pages
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Freescale Semiconductor, Inc.
Transparent Top View of Package
CSNS
TEMP
EN
INHS
FS
INLS
CONF
OCLS
DLS
GLS
SR
CBOOT
1
2
3
4
5
6 13
7 GND
8
9
10
11
12
14
VPWR
16 OUT
15 OUT
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
VDD (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 VDS 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.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
For More Information On This Product,
Go to: www.freescale.com
33981
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