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PDF BTS426L1 Data sheet ( Hoja de datos )
| Número de pieza | BTS426L1 | |
| Descripción | Smart High-Side Power Switch | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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Smart High-Side Power Switch
PROFET® BTS426L1
Features
Overload protection
Current limitation
Short circuit protection
Thermal shutdown
Overvoltage protection (including load dump)
Fast demagnetization of inductive loads
Reverse battery protection1)
Undervoltage and overvoltage shutdown with auto-restart
and hysteresis
Open drain diagnostic output
Open load detection in ON-state
CMOS compatible input
Loss of ground and loss of Vbb protection
Electrostatic discharge (ESD) protection
Green Product (RoHS compliant)
AEC Qualified
Product Summary
Overvoltage protection
Operating voltage
On-state resistance
Load current (ISO)
Current limitation
Vbb(AZ)
Vbb(on)
RON
IL(ISO)
IL(SCr)
PG-TO263-5-2
43 V
5.0 ... 34 V
60 m
7.0 A
16 A
Application
C compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads
All types of resistive, inductive and capacitve loads
Replaces electromechanical relays, fuses and discrete circuits
General Description
N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic feedback, monolithically
integrated in Smart SIPMOS technology. Providing embedded protective functions.
2 IN
Voltage
source
V Logic
Voltage
sensor
ESD
4 ST
Logic
Overvoltage
protection
Current
limit
Gate
protection
+ Vbb 3
Charge pump
Level shifter
Rectifier
Limit for
unclamped
ind. loads
Open load
Short to Vbb
detection
OUT
Temperature
5
sensor
RO
Load
GND
1
Signal GND
GND
PROFET
Load GND
1) With external current limit (e.g. resistor RGND=150 ) in GND connection, resistor in series with ST connection, reverse load
current limited by connected load.
Data Sheet
1
2013-10-10
1 page  
Parameter and Conditions
at Tj = 25 °C, Vbb = 12 V unless otherwise specified
Symbol
Input and Status Feedback12)
Input resistance
Tj=-40..150°C, see circuit page 6
Input turn-on threshold voltage
Input turn-off threshold voltage
Input threshold hysteresis
Off state input current (pin 2), VIN = 0.4 V,
Tj =-40..+150°C
RI
Tj =-40..+1V5IN0(T°+C) :
Tj =-40..+150°C:VIN(T-)
VIN(T)
IIN(off)
On state input current (pin 2), VIN = 3.5 V,
Tj =-40..+150°C
IIN(on)
Delay time for status with open load after switch off
(see timing diagrams, page 11), Tj =-40..+150°C
Status invalid after positive input slope
(open load)
Tj=-40 ... +150°C:
Status output (open drain)
td(ST OL4)
td(ST)
Zener limit voltage
ST low voltage
Tj =-40...+150°C, IST = +1.6 mA:
Tj =-40...+25°C, IST = +1.6 mA:
Tj = +150°C, IST = +1.6 mA:
VST(high)
VST(low)
BTS426L1
Values
Unit
min typ max
2.5 3.5
6 k
1.7 -- 3.5 V
1.5 -- -- V
-- 0.5
-- V
1 -- 50 A
20 50 90 A
100 520 1000 s
-- 250 600 s
5.4 6.1
-- V
-- -- 0.4
-- -- 0.6
12) If a ground resistor RGND is used, add the voltage drop across this resistor.
Data Sheet
5
2013-10-10
5 Page 
Heating up may require several milliseconds, depending on external conditions
Figure 4a: Overtemperature:
Reset if Tj <Tjt
BTS426L1
Figure 5b: Open load: detection in ON-state, open load occurs in
on-state
IN
IN
td(ST OL1)
t
d(ST OL2)
ST
ST
V
OUT
VOUT
I normal
L
open
normal
T
Jt
t td(ST OL1) = 20 s typ., td(ST OL2) = 10 s typ
Figure 5a: Open load: detection in ON-state, turn on/off to open
load
IN
Figure 5c: Open load: detection in ON- and OFF-state (with
REXT), turn on/off to open load
IN
t
ST d(ST)
td(ST OL4)
ST
t
d(ST)
V
OUT
V
OUT
I
L
open
t
The status delay time td(ST OL4) allows to ditinguish between
the failure modes "open load" and "overtemperature".
Data Sheet
11
I
L
open
t
2013-10-10
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet BTS426L1.PDF ] | |
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