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PDF BTS3408G Data sheet ( Hoja de datos )
| Número de pieza | BTS3408G | |
| Descripción | Smart Dual Low Side Power Switch | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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Smart Low Side Power Switch
HITFET® BTS3408G
Datasheet Rev. 1.4
Features
• Logic level input
• Compatible to 3V micro controllers
• ESD protection
• Thermal shutdown with auto restart
• Overload protection
• Short circuit protection
• Over voltage protection
• Open load detection (during Off)
• Current limitation
• Direct parallel control of the inputs
• FREEZE functionality for multiplexing
• General fault flag
• Very low standby quiescent current
• Switching frequencies up to 50kHz
• Green Product (RoHS compliant)
• AEC Qualified
Application
• All kinds of resistive, inductive and capacitive loads in switching applications
• µC compatible power switch for 12 V, 24 V and 42 V applications
• Replaces electromechanical relays and discrete circuits
• Line, stepper motor, lamp and relay driver
General Description
The BTS3408G is a dual channel Low-Side Switch with D-MOS output stages for driving
resistive, capacitive and inductive loads. The design is based on Infineons Smart Power
Technology (SPT) which allows bipolar, CMOS and power D-MOS devices on the same
monolithic circuit.
The BTS3408G is protected by embedded protection functions and designed for
automotive and industrial applications. It is especially suited for driving stepper motors
and lines.
Type
HITFET® BTS3408G
Ordering Code
on request
Package
PG-DSO-8-36
Datasheet Rev. 1.4
1
2013-02-12
1 page  
HITFET® BTS3408G
Power stages
Each output is protected by embedded protection functions. In the event of an overload
or short to supply, the current is internally limited. The current limit is set to ID(lim). If this
operation leads to an overtemperature condition, a second protection level (about 165
°C) will turn the effected output into a PWM-mode (selective thermal shutdown with
restart) to prevent critical chip temperatures. The temperature hysteresis is typically 10K.
Zener clamping is implemented to limit voltages at the power transistors when inductive
loads are switched off.
Diagnostic
The general FAULT pin is an open drain output. The FAULT pin is low active. It signals
fault conditions of any of the two output stages. By doing so, single and/or dual fault
conditions can be monitored. Single fault conditions can be assigned.
Table 2
Diagnostic Table
Operating Condition
ENA
Standby
Normal function
Over temperature
Open load / short to ground
L
H
H
H
1) X = not relevant
2) selective thermal shutdown for each channel at overtemperature
INX
X 1)
H
H
L
OUTX
OFF
ON
OFF 2)
OFF
FAULT
H
H
L
L
Fault Distinction
Open load / short to ground is recognized during OFF-state. Overtemperature as a result
of an overload or short to battery can only arise during ON-state. If there is only one fault
at a time, it is possible to distinguish which channel is affected with which fault.
Datasheet Rev. 1.4
5
2013-02-12
5 Page 
HITFET® BTS3408G
3. Typ. Short Circuit Current
ID(lim) = f(Tj)
2
I D(lim )
typ.
1A,5
1
0,5
5. Typ. Output leakage current
IDSS = f(Tj);VS = 18 V; VDS = 60 V
2
I DSS
1μ,A6
typ.
1,2
0,8
0,4
0
-5 0 -2 5 0 2 5 5 0 7 5 1 0 0 1°2C5 1 5 0
Tj
4. Typ. Supply current in Standby mode
IS(stby) = f(Tj);VS = 5 V
10
I S(stby)
μ8A
typ.
6
0
-50 -25 0
2 5 5 0 7 5 1 0 0 1°2C5 1 5 0
Tj
4
2
0
-50 -25 0
2 5 5 0 7 5 1 0 0 1°2C5 1 5 0
Tj
Datasheet Rev. 1.4
11
2013-02-12
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet BTS3408G.PDF ] | |
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