BTS733L1
器件描述:Smart Two Channel Highside Power Switch (Overload protection Current limitation Short-circuit protection Thermal shutdown)
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器件资料摘要:
PROFET
®
BTS 733 L1
Semiconductor Group 1 10.96
Smart Two Channel Highside Power Switch
Features
•
Overload protection
•
Current limitation
•
Short-circuit protection
•
Thermal shutdown
•
Overvoltage protection
(including load dump)
•
Reverse battery protection
1
)
•
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 V
bb
protection
•
Electrostatic discharge (ESD) protection
Application
•
µC compatible power switch with diagnostic feedback
for 12 V DC grounded loads
•
Most suitable for resistive and lamp 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. Fully protected by embedded protection
functions.
Pin Definitions and Functions
Pin Symbol Function
1,10,
11,12,
15,16,
19,20
V
bb
Positive power supply voltage. Design the
wiring for the simultaneous max. short circuit
currents from channel 1 to 2 and also for low
thermal resistance
3 IN1 Input 1,2, activates channel 1,2 in case of
7 IN2 logic high signal
17,18 OUT1 Output 1,2, protected high-side power output
13,14 OUT2 of channel 1,2. Design the wiring for the max.
short circuit current
4 ST1 Diagnostic feedback 1,2 of channel 1,2,
8 ST2 open drain, low on failure
2 GND1 Ground 1 of chip 1 (channel 1)
6 GND2 Ground 2 of chip 2 (channel 2)
5,9 N.C. Not Connected
1)
With external current limit (e.g. resistor R
GND
=150 Ω) in GND connection, resistor in series with ST
connection, reverse load current limited by connected load.
Product Summary
Overvoltage Protection V
bb(AZ)
43 V
Operating voltage
V
bb(on)
5.0 ... 24 V
active channels: one two parallel
On-state resistance R
ON
40 20 mΩ
Nominal load current I
L(NOM)
4.8 7.3 A
Current limitation I
L(SCr)
21 21 A
Pin configuration (top view)
V
bb
1 • 20 V
bb
GND1 2 19 V
bb
IN1 3 18 OUT1
ST1 4 17 OUT1
N.C. 5 16 V
bb
GND2 6 15 V
bb
IN2 7 14 OUT2
ST2 8 13 OUT2
N.C. 9 12 V
bb
V
bb
10 11 V
bb