參數(shù)資料
型號: VN5050J-E
廠商: 意法半導體
英文描述: Single channel high side driver for automotive applications
中文描述: 單通道面向汽車應用的高邊驅(qū)動器
文件頁數(shù): 21/31頁
文件大?。?/td> 462K
代理商: VN5050J-E
VN5050J-E
Application information
21/31
3.1.2
Solution 2: diode (D
GND
) in the ground line.
A resistor (R
GND
=1k
)
should be inserted in parallel to D
GND
if the device drives an
inductive load.
This small signal diode can be safely shared amongst several different HSDs. Also in this
case, the presence of the ground network will produce a shift (
600mV) in the input
threshold and in the status output values if the microprocessor ground is not common to the
device ground. This shift will not vary if more than one HSD shares the same diode/resistor
network.
3.2
Load dump protection
D
ld
is necessary (Voltage Transient Suppressor) if the load dump peak voltage exceeds the
V
CC
max DC rating. The same applies if the device is subject to transients on the V
CC
line
that are greater than the ones shown in the ISO 7637-2: 2004(E) table.
3.3
MCU I/Os protection:
If a ground protection network is used and negative transient are present on the V
CC
line,
the control pins will be pulled negative. ST suggests to insert a resistor (R
prot
) in line to
prevent the μC I/Os pins to latch-up.
The value of these resistors is a compromise between the leakage current of
μ
C and the
current required by the HSD I/Os (Input levels compatibility) with the latch-up limit of
μ
C
I/Os.
-V
CCpeak
/I
latchup
R
prot
(V
OH
μ
C
-V
IH
-V
GND
) / I
IHmax
Calculation example:
For V
CCpeak
= - 100V and I
latchup
20mA; V
OH
μ
C
4.5V
5k
R
prot
65k
.
Recommended values: R
prot
=10k
.
3.4
Open load detection in off state
Off state open load detection requires an external pull-up resistor (R
PU
) connected between
OUTPUT pin and a positive supply voltage (V
PU
) like the +5V line used to supply the
microprocessor.
The external resistor has to be selected according to the following requirements:
1.
no false open load indication when load is connected: in this case we have to avoid
V
OUT
to be higher than V
Olmin
; this results in the following condition
V
OUT
=(V
PU
/(R
L
+R
PU
))R
L
<V
Olmin
.
2.
no misdetection when load is disconnected: in this case the V
OUT
has to be higher than
V
OLmax
; this results in the following condition R
PU
<(V
PU
–V
OLmax
)/I
L(off2)
.
Because I
s(OFF)
may significantly increase if V
out
is pulled high (up to several mA), the pull-
up resistor R
PU
should be connected to a supply that is switched OFF when the module is in
standby.
相關PDF資料
PDF描述
VN5160S-E Single channel high side driver for automotive applications
VN540-011Y HIGH SIDE SMART POWER SOLID STATE RELAY
VN540-012Y HIGH SIDE SMART POWER SOLID STATE RELAY
VN540SP13TR HIGH SIDE SMART POWER SOLID STATE RELAY
VN540(012Y) Shielded Multiconductor Cable; Number of Conductors:4; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Conductor Material:Copper; Temperature Max:80 C RoHS Compliant: Yes
相關代理商/技術(shù)參數(shù)
參數(shù)描述
VN5050J-E_07 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single channel high side driver for automotive applications
VN5050JJ-E 功能描述:電源開關 IC - 配電 AED Power Power SSO 12 RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時間(最大值):400 us 關閉時間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5
VN5050JJTR-E 功能描述:電源開關 IC - 配電 Standard Function High Side Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時間(最大值):400 us 關閉時間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5
VN5050JTR-E 功能描述:功率驅(qū)動器IC Sngl Ch HiSide Drivr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
VN511 功能描述:RF 連接器 N Flange Mount Jack Receptacle RoHS:否 制造商:Bomar Interconnect 產(chǎn)品:Connectors 射頻系列:BNC 型式:Jack (Female) 極性: 觸點電鍍:Gold 阻抗: 端接類型:Solder 主體類型:Straight Bulkhead 電纜類型: