BTS721L1(2010) Просмотр технического описания (PDF) - Infineon Technologies
Номер в каталоге
Компоненты Описание
производитель
BTS721L1 Datasheet PDF : 18 Pages
| |||
Smart High-Side Power Switch
BTS721L1
Truth Table
Channel 1 and 2
Chip 1
IN1 IN2 OUT1 OUT2
ST1/2
Channel 3 and 4
(equivalent to channel 1 and 2)
Chip 2
IN3 IN4 OUT3 OUT4
ST3/4
BTS 721L1
Normal operation
Open load
L
L
L
L
H
L
H
L
H
H
H
H
Channel 1 (3) L
L
Z
L
H
Z
H
X
H
Channel 2 (4) L
L
L
H
L
H
X
H
X
L
H
H
H
L
H
H
H
L
H(L15))
H
H
X
L
Z
H(L15))
Z
H
H
L
Short circuit to Vbb
Channel 1 (3) L
L
H
L
H
H
H
X
H
Channel 2 (4) L
L
L
H
L
H
X
H
X
L
L16)
H
H
X
H(L17))
H
L16)
H
H
H
H(L17))
Overtemperature
both channel
L
L
L
L
H
X
H
L
L
L
H
X
L
L
L
Channel 1 (3) L
X
L
X
H
H
X
L
X
L
Channel 2 (4) X
L
X
L
H
X
H
X
L
L
Undervoltage/ Overvoltage
X
X
L
L
H
L = "Low" Level
H = "High" Level
X = don't care
Z = high impedance, potential depends on external circuit
Status signal valid after the time delay shown in the timing diagrams
Parallel switching of channel 1 and 2 (also channel 3 and 4) is easily possible by connecting the inputs and
outputs in parallel (see truth table). If switching channel 1 to 4 in parallel, the status outputs ST1/2 and ST3/4
have to be configured as a 'Wired OR' function with a single pull-up resistor.
Terms
,EE
9EE
, ,1
, ,1
, 67
9,1 9,1 967
,1
/HDGIUDPH
921
921
9EE
, /
287
,1
352)(7
&KLS
67 *1'
287
, /
9287
,*1'
9287
5 *1'
9,1
, ,1
, ,1
, 67
9,1 967
,1
/HDGIUDPH
921
921
9EE
, /
287
,1
352)(7
&KLS
67 *1'
287
, /
9287
,*1'
9287
5 *1'
Leadframe (Vbb) is connected to pin 1,10,11,12,15,16,19,20
External RGND optional; two resistors RGND1/2 ,RGND3/4 = 150 Ω or a single resistor RGND = 75 Ω for
reverse battery protection up to the max. operating voltage.
15) With additional external pull up resistor
16) An external short of output to Vbb in the off state causes an internal current from output to ground. If RGND is
used, an offset voltage at the GND and ST pins will occur and the VST low signal may be errorious.
17) Low resistance to Vbb may be detected by no-load-detection
Data Sheet
8
Rev. 1.3, 2010-03-16
Share Link: 