ZXMS81045SPQ
IntelliFET® HIGH-SIDE POWER SWITCH
Green
Description
Pin Assignment
The ZXMS81045SPQ is a single-channel, high-side, power switch in a
SO-8EP (Type E) exposed heatsink package incorporating protective
and diagnostic functions.
(Top View)
The device comprises a monolithic N-channel vertical power MOSFET
with integrated temperature and current sensors with a charge-pumped
gate supply and has a low quiescent current in OFF state.
VS
(EP)
The device is enabled by active high 3.3V and 5V logic level drive to
the inputs. The device includes a diagnostic current-sense output
proportional to load current and a defined diagnostic fault signal in
case of overload operation, overtemperature, short-circuit or open load
conditions.
SO-8EP
Applications
Features
High-side switching with diagnostic feedback for:
Protection Functions
.
.
12V grounded loads
Reverse battery protection using external components
Voltage dependent current limiting
Resistive, inductive, and capacitive loads
.
Suitable for high inrush current loads
Incandescent lamps (P27W/P21W), motors, etc
Compact low-power replacement for:
Relays, fuses, and discrete circuits
Overtemperature protection with auto-restart
Overvoltage protection including load dump
Stable undervoltage protection
.
.
ESD protection
Loss of ground protection with external components
Enhanced short circuit protection
Summary Specifications
Diagnostic Functions
Operating voltage
VS
5 - 28V
41V
90mΩ
4A
1200
25A
0.5µA
Proportional load current-sense output
Maximum supply voltage
Maximum ON resistance, Tj = 150°C
Nominal load current
Typical current sense ratio
Minimum current limitation
Maximum standby current, Tj = 25°C
VS(LD)
RDS(ON)
IL(NOM)
KILIS
IL5(SC)
IS(OFF)
.
Linear voltage drop regulation to maintain sense accuracy
even at very low load currents
.
.
Enabled by logic input
Defined temperature and current dependency
Open-load detection
.
.
Using load current-sense in ON state
Using output voltage detection in OFF state
Defined fault signal in case of overload operation,
overtemperature, or short-circuit
Miscellaneous
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
The ZXMS81045SPQ is suitable for automotive applications
requiring specific change control; this part is AEC-Q100
qualified, PPAP capable, and manufactured in IATF16949
certified facilities.
https://www.diodes.com/quality/product-definitions/
Notes:
1.
2.
EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.
See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-
free.
3.
4.
Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
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www.diodes.com
July 2023
ZXMS81045SPQ
© 2023 Copyright Diodes Incorporated. All Rights Reserved.
Document number: DS44103 Rev. 4 - 2
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