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BTS728L2 Datasheet(PDF) 2 Page - Siemens Semiconductor Group

Part No. BTS728L2
Description  Smart High-Side Power Switch Two Channels: 2 x 60mW Status Feedback
Download  14 Pages
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Manufacturer  SIEMENS [Siemens Semiconductor Group]
Direct Link  http://www.siemens.com/
Logo SIEMENS - Siemens Semiconductor Group

BTS728L2 Datasheet(HTML) 2 Page - Siemens Semiconductor Group

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BTS 728 L2
Semiconductor Group
Page 2
1999-Mar-23
Functional diagram
Pin Definitions and Functions
Pin
Symbol
Function
1,10,
11,12,
15,16,
19,20
Vbb
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
3IN1
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
4ST1
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
Pin configuration
(top view)
Vbb 1
20 Vbb
GND1
2
19 Vbb
IN1
3
18 OUT1
ST1
4
17 OUT1
N.C.
5
16 Vbb
GND2
6
15 Vbb
IN2
7
14 OUT2
ST2
8
13 OUT2
N.C.
9
12 Vbb
Vbb 10
11 Vbb
OUT1
GND1
overvoltage
protection
logic
internal
voltage supply
ESD
temperature
sensor
clamp for
inductive load
gate
control
+
charge
pump
current limit
Open load
detection
ST1
VBB
LOAD
IN1
PROFET
Control and protection circuit
of
channel 2
IN2
ST2
OUT2
Channel 1
GND2


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