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PDF BTS428L2 Data sheet ( Hoja de datos )
| Número de pieza | BTS428L2 | |
| Descripción | Smart High-Side Power Switch One Channel: 60m Status Feedback | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BTS428L2 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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Smart High-Side Power Switch
One Channel: 60mΩ
Status Feedback
Product Summary
On-state Resistance
Operating Voltage
Nominal load current
Current limitation
RON
Vbb(on)
IL(NOM)
IL(SCr)
60mΩ
4.75...41V
7.0A
17A
PROFET® BTS428L2
Package
TO 252-5-11
General Description
• N channel vertical power MOSFET with charge pump, ground referenced CMOS compatible input and
diagnostic feedback, monolithically integrated in Smart SIPMOS technology.
• Providing embedded protective functions
Applications
• µC compatible high-side power switch with diagnostic feedback for 5V, 12V and 24V grounded loads
• All types of resistive, inductive and capacitve loads
• Most suitable for loads with high inrush currents, so as lamps
• Replaces electromechanical relays, fuses and discrete circuits
Basic Functions
• Very low standby current
• CMOS compatible input
• Improved electromagnetic compatibility (EMC)
• Fast demagnetization of inductive loads
• Stable behaviour at undervoltage
• Wide operating voltage range
• Logic ground independent from load ground
Protection Functions
• Short circuit protection
• Overload protection
• Current limitation
• Thermal shutdown
• Overvoltage protection (including load dump) with external
resistor
• Reverse battery protection with external resistor
• Loss of ground and loss of Vbb protection
• Electrostatic discharge protection (ESD)
Block Diagram
Vbb
IN Logic
with
protection
ST functions
OUT
Diagnostic Function
• Diagnostic feedback with open drain output
• Open load detection in ON-state
• Feedback of thermal shutdown in ON-state
PROFET
GND
Load
Infineon Technologies AG
Page 1 of 13
2003-Oct-01
1 page  
Parameter and Conditions
at Tj =-40...+150°C, Vbb = 12 V unless otherwise specified
Protection Functions10)
Current limit (pin 3 to 5)
(see timing diagrams on page 12)
Tj =-40°C:
Tj =25°C:
Tj =+150°C:
Repetitive short circuit shutdown current limit
Tj = Tjt (see timing diagrams, page 12)
Thermal shutdown time11
Tj,start = 25°C:
(see timing diagrams on page 12)
Output clamp (inductive load switch off)
at VOUT = Vbb - VON(CL)
IL= 40 mA:
Thermal overload trip temperature
Thermal hysteresis
Reverse battery (pin 3 to 1) 12)
Reverse battery voltage drop (Vout > Vbb)13)
IL = -2 A
Tj=150 °C:
Symbol
IL(lim)
IL(SCr)
toff(SC)
VON(CL)
Tjt
∆Tjt
-Vbb
-VON(rev)
BTS428L2
Values
Unit
min typ max
21 28
17 22
12 16
-- 17
-- 7.5
41
43 47
150 --
-- 10
-- --
-- 600
36 A
31
24
-- A
-- ms
52 V
-- °C
-- K
32 V
-- mV
Diagnostic Characteristics
Open load detection current
(on-condition)
IL (OL)
10 -- 500 mA
10) Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are
not designed for continuous repetitive operation.
11) Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm2 (one layer, 70µm thick) copper area for Vbb
connection. PCB is vertical without blown air.
12) Requires 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source
diode has to be limited by the connected load. Note that the power dissipation is higher compared to normal
operating conditions due to the voltage drop across the intrinsic drain-source diode. The temperature
protection is not active during reverse current operation! Input and Status currents have to be limited (see
max. ratings page 3 and circuit page 8).
13) not subject to production test, specified by design
Infineon Technologies AG
Page 5
2003-Oct-01
5 Page 
Timing diagrams
Figure 1a: Vbb turn on:
IN
V bb
V
OUT
BTS428L2
Figure 2b: Switching a lamp,
IN
ST
VOUT
ST open drain
proper turn on under all conditions
Figure 2a: Switching a resistive load,
turn-on/off time and slew rate definition:
IN
I
tL
t
The initial peak current should be limited by the lamp and not by the
current limit of the device.
Figure 2c: Switching an inductive load
IN
VOUT
90%
t on
10%
dV/dton
IL
dV/dtoff
t
off
ST
V
OUT
IL
I L(OL)
t
t
*) if the time constant of load is too large, open-load-status may
occur
Infineon Technologies AG
Page 11
2003-Oct-01
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet BTS428L2.PDF ] | |
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