BTS7120-2EPA
PROFET™+2
Smart High-Side Power Switch
2x 120 mΩ
Package
Marking
PG-TSDSO-14-22
7120-2A
1
•
•
•
Overview
Suitable for resistive, inductive and capacitive loads
Replaces electromechanical relays, fuses and discrete circuits
Driving capability suitable for 2 A loads (including relays) and high inrush
current loads such as R10W lamps or LED equivalent
Potential Applications
V
BAT
R/L cable
T
1
C
VS
V
DD
D
Z2
VDD
GPIO
GPIO
GPIO
GPIO
R
IN
R
IN
R
DEN
R
DSEL
IN0
IN1
DEN
DSEL
VS
T
R
OL
R/L cable
OUT0
C
OUT0
Control
Protection
Diagnosis
T
R
PD
Microcontroller
R/L cable
OUT1
A/D IN
C
SENSE
R
AD
R
IS_PROT
IS
GND
R
SENSE
D
Z1
VSS
R
GND
C
OUT1
R
PD
App_2CH_LI_INTDIO_Cover.emf
Figure 1
BTS7120-2EPA Application Diagram. Further information in
Chapter 10
Data Sheet
www.infineon.com
1
Rev. 1.01
2018-05-23
BTS7120-2EPA
PROFET™+2
Overview
Basic Features
•
•
•
•
•
High-Side Switch with Diagnosis and Embedded Protection
Part of PROFET™+2 Family
Switch ON capability while Inverse Current condition (InverseON)
Green Product (RoHS compliant)
Qualified in accordance with AEC Q100 grade 1
Protection Features
•
•
•
•
Absolute and dynamic temperature limitation with controlled restart
Overcurrent protection (tripping) with Intelligent Restart Control
Undervoltage shutdown
Overvoltage protection with external components
Diagnostic Features
•
•
•
Proportional load current sense
Open Load in ON and OFF state
Short circuit to ground and battery
Description
The BTS7120-2EPA is a Smart High-Side Power Switch, providing protection functions and diagnosis. The
device is integrated in SMART7 technology.
Table 1
Parameter
Minimum Operating voltage (at switch ON)
Minimum Operating voltage (cranking)
Maximum Operating voltage
Minimum Overvoltage protection (T
J
= 25 °C)
Maximum current in Sleep mode (T
J
≤
85 °C)
Maximum operative current
Maximum ON-state resistance (T
J
= 150 °C)
Nominal load current (T
A
= 85 °C)
Typical current sense ratio at
I
L
=
I
L(NOM)
Product Summary
Symbol
V
S(OP)
V
S(UV)
V
S
V
DS(CLAMP)_25
I
VS(SLEEP)
I
GND(ACTIVE)
R
DS(ON)_150
I
L(NOM)
k
ILIS
Values
4.1 V
3.1 V
28 V
35 V
0.5 µA
4 mA
110 mΩ
2A
1075
Data Sheet
2
Rev. 1.01
2018-05-23
BTS7120-2EPA
PROFET™+2
Block Diagram and Terms
2
2.1
Block Diagram and Terms
Block Diagram
VS
Supply Voltage
Monitoring
Overvoltage
Protection
Internal Power Supply
Intelligent Restart
Control
IS
SENSE Output
Channel 1
Channel 0
Voltage Sensor
Voltage Sensor
Overtemperat
ure
Overtemperature
Gate Control
+
driver Gate Control
Chargepump
logic
+
Driver
Chargepump
Logic
Overvoltage
Clamping
Overvoltage
Clamping
Overcurrent
Protection
Overcurrent
Protection
T
T
IN0
IN1
DEN
DSEL
Internal Reverse
Polarity Protection
GND Circuitry
ESD
Protection
+
Input Logic
OUT1
OUT0
InverseON
Load Current Sense
Load Current Sense
Output Voltage Limitation
Output Voltage Limitation
GND
Block_PROFET2ch_INVON_INTDIO.emf
Figure 2
Block Diagram of BTS7120-2EPA
Data Sheet
3
Rev. 1.01
2018-05-23
BTS7120-2EPA
PROFET™+2
Block Diagram and Terms
2.2
Terms
Figure 3
shows all terms used in this data sheet, with associated convention for positive values.
I
VS
V
SIS
INn
VS
I
INn
I
DEN
V
S
V
INn
V
DEN
V
DSEL
V
DSn
DEN
I
DSEL
I
IS
OUTn
DSEL
I
Ln
IS
GND
V
OUTn
V
IS
I
GND
Terms_PROFET.emf
Figure 3
Voltage and Current Convention
Data Sheet
4
Rev. 1.01
2018-05-23
Microcontroller MCU
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