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參數資料
| 型號： | BTS728-L2 |
| 元件分類： | TVS-瞬態抑制二極管 |
| 英文描述： | Transient Voltage Suppressor Diodes |
| 中文描述： | ？4.75 - 41V。 2x60mΩ極限（可控硅）17A條示波器- 20 - 9？ |
| 文件頁數： | 1/14頁 |
| 文件大小： | 470K |
| 代理商： | BTS728-L2 |
PROFET
BTS 721 L1
Data Book
604
01.07.97
Smart Four Channel Highside Power Switch
Features
Overload protection
Current limitation
Short-circuit protection
Thermal shutdown
Overvoltage protection
(including load dump)
Fast demagnetization of inductive loads
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
E
lectro
s
tatic
d
ischarge (
ESD
) protection
Application
μ
C compatible power switch with diagnostic feedback
for 12 V and 24 V DC grounded loads
All types of resistive, inductive and capacitive loads
Replaces electromechanical relays 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
thermal resistance
3
IN1
Input 1 .. 4
, activates channel 1 .. 4 in case of
5
IN2
logic high signal
7
IN3
9
IN4
18
OUT1
Output 1 .. 4
, protected high-side power output
17
OUT2
of channel 1 .. 4. Design the wiring for the
14
OUT3
max. short circuit current
13
OUT4
4
ST1/2
Diagnostic feedback 1/2
of channel 1 and
channel 2, open drain, low on failure
8
ST3/4
Diagnostic feedback 3/4
of channel 3 and
channel 4, open drain, low on failure
2
GND1/2
Ground 1/2
of chip 1 (channel 1 and channel 2)
6
GND3/4
Ground 3/4
of chip 2 (channel 3 and channel 4)
V
bb
Positive power supply voltage
. Design the
wiring for the simultaneous max. short circuit
currents from channel 1 to 4 and also for low
1
)
With external current limit (e.g. resistor R
GND
=150
) in GND connection, resistor in series with ST
connection, reverse load current limited by connected load.
Product Summary
Overvoltage Protection
Operating voltage
V
bb(AZ)
V
bb(on)
one
100
2.9
8
43
V
V
5.0 ... 34
active channels:
two parallel four parallel
50
4.3
8
On-state resistance
R
ON
Nominal load current
I
L(NOM)
Current limitation
25
6.3
8
m
A
A
I
L(SCr)
Pin configuration
(top view)
V
bb
1
2
3
4
5
6
7
8
9
10
20 V
bb
19 V
bb
18 OUT1
17 OUT2
16 V
bb
15 V
bb
14 OUT3
13 OUT4
12 V
bb
11 V
bb
GND1/2
IN1
ST1/2
IN2
GND3/4
IN3
ST3/4
IN4
V
bb
P-DSO-20
P DSO 20 1 6 7 9 14
1
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