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PDF BTS728L2 Data sheet ( Hoja de datos )
| Número de pieza | BTS728L2 | |
| Descripción | Smart High-Side Power Switch Two Channels: 2 x 60m Status Feedback | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BTS728L2 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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PROFET® BTS 728 L2
Smart High-Side Power Switch
Two Channels: 2 x 60mΩ
Status Feedback
Product Summary
Package
Operating Voltage
On-state Resistance
Nominal load current
Current limitation
Vbb(on)
Active channels one
RON
IL(NOM)
IL(SCr)
60mΩ
4.0A
17A
4.75...41V
two parallel
30mΩ
6.0A
17A
P-DSO-20-9
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)
Diagnostic Function
• Diagnostic feedback with open drain output
• Open load detection in ON-state
• Feedback of thermal shutdown in ON-state
Block Diagram
Vbb
IN1 Logic
ST1
Channel
1
IN2 Logic
ST2
Channel
2
PROFET
GND
OUT 1
Load 1
OUT 2
Load 2
Semiconductor Group
1 of 14
2003-Oct-01
1 page  
BTS 728 L2
Parameter and Conditions, each of the two channels Symbol
at Tj = -40...+150°C, Vbb = 12 V unless otherwise specified
Values
Unit
min typ Max
Protection Functions12)
Current limit, (see timing diagrams, page 12)
Repetitive short circuit current limit,
Tj =-40°C:
Tj =25°C:
Tj =+150°C:
Tj = Tjt
each channel
two parallel channels
(see timing diagrams, page 12)
Initial short circuit shutdown time Tj,start =25°C:
(see timing diagrams on page 12)
Output clamp (inductive load switch off)13)
at VON(CL) = Vbb - VOUT, IL= 40 mA
Tj =-40°C:
Tj =25°C...150°C:
Thermal overload trip temperature
Thermal hysteresis
IL(lim)
IL(SCr)
toff(SC)
VON(CL)
Tjt
∆Tjt
21 28
17 22
12 16
-- 17
-- 17
-- 2.4
41 --
43 47
150 --
-- 10
36 A
31
24
-- A
--
-- ms
V
--
52
-- °C
-- K
Reverse Battery
Reverse battery voltage 14)
Drain-source diode voltage (Vout > Vbb)
IL = - 4.0 A, Tj = +150°C
-Vbb
-VON
-- --
-- 600
32 V
-- mV
12) 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.
13) If channels are connected in parallel, output clamp is usually accomplished by the channel with the lowest
VON(CL)
14) Requires a 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source
diode has to be limited by the connected load. Power dissipation is higher compared to normal operating
conditions due to the voltage drop across the 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).
Semiconductor Group
5
2003-Oct-01
5 Page 
BTS 728 L2
Timing diagrams
Both channels are symmetric and consequently the diagrams are valid for channel 1 and
channel 2
Figure 1a:
IN1
Vbb
turn
on:
IN2
V bb
V
OUT1
V
OUT2
ST1 open drain
ST2 open drain
Figure 2a: Switching a resistive load,
turn-on/off time and slew rate definition:
IN
VOUT
90%
t on
Figure 2b: Switching a lamp:
IN
ST
VOUT
I
L
t
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
dV/dtoff
ST
10%
dV/dton
t
off
V
OUT
IL
IL
t I L(OL)
t
Semiconductor Group
11
2003-Oct-01
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet BTS728L2.PDF ] | |
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