数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

L9347PD 数据表(PDF) 10 Page - STMicroelectronics

部件名 L9347PD
功能描述  INTELLIGENT QUAD 2X5A/2X2.5A LOW-SIDE SWITCH
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9347PD 数据表(HTML) 10 Page - STMicroelectronics

Back Button L9347PD Datasheet HTML 6Page - STMicroelectronics L9347PD Datasheet HTML 7Page - STMicroelectronics L9347PD Datasheet HTML 8Page - STMicroelectronics L9347PD Datasheet HTML 9Page - STMicroelectronics L9347PD Datasheet HTML 10Page - STMicroelectronics L9347PD Datasheet HTML 11Page - STMicroelectronics L9347PD Datasheet HTML 12Page - STMicroelectronics L9347PD Datasheet HTML 13Page - STMicroelectronics L9347PD Datasheet HTML 14Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 21 page
background image
L9347
10/21
against recirculation errors, when D3 or D4 is not connected. All these error conditions shut off the power stage
and invert the status output information.
1.6
Error Detection
The status outputs indicate the switching state under normal conditions (status LOW = OFF; status HIGH = ON).
If an error occurs, the logic level of the status output is inverted, as listed in the diagnostic table below. All ex-
ternal errors, for example open load, are filtered internally. The following table shows the detected errors, the
filter times and the detection mode (on/off).
EN&IN=low means that at least one between enable and input is low. For the inputs IN=low means also no input
PWM. For the regulator input period longer than TDreg and for the standard channel input period longer thanTD.
A detected error is stored in an error register. The reset of this register is made with a timer TD. With this ap-
proach all errors are present at the status output at least for the time TD.
All protection functions like short circuit of the output, overtemperature, clock failure or power-GND-loss in ON
condition are stored into an internal “fail” register. The output is then shut off. The register must be reset with a
low signal at the input. A “low signal” means that the input is low for a time longer than TD or TDReg for the re-
ulated channel, otherwise it is interpreted as a PWM input signal and the register is left in set mode.
Signal-GND-loss and VS-loss are detected in the active on mode, but they do not set the fail register. This type
of error is only delayed with the standard timer tlf function.
Open load is detected for all four channels in on- and off-state.
Open load in off condition detects the voltage on the output pin. If this voltage is below 0.33 * VS the error reg-
ister is set and delayed with TD. A sink current stage pull the output down to ground, with EN high. With EN low
the output is floating in case of openload and the detection is not assured. In the ON state the load current is
monitored by the non-regulated channels. If it drops below the specified threshold value IQU an open load is
detected and the error register is set and delayed with TD. A regulated channel detects the open load in the on
state with the current regulator error detection. If the output PWM reaches 90% for a time longer than tRE than
an error occurs. This could happen when no load is connected, the resistivity of the load is too high or the supply
voltage too low. The same error is shown if the regulator is not able to reduce the current in the load in the time
tRE, so the output PWM falls below 10%.
A clock failure (clock loss) is detected when the frequency becomes lower than fCLK,min. All status outputs are
ON State
EN &IN = HIGH
OFF State
EN &IN = LOW
Filter time
Reset done by
Short circuit of the load
Xtsf
EN & IN = “LOW”
for
TD or TDreg
Open load
(under voltage detection)
Xtlf
timer
TD
Open load
(under current detection)
Xtsf
timer
TD
Overtemperature
Xtsf
EN & IN = “LOW”
for
TD or TDreg
Power-GND-loss
XX
tlf
in on: EN & IN = “LOW”
for
TD or TDreg
in off: timer
TD
Signal-GND-loss
XX
tlf
timer
TD
Supply-VS-loss
XX
tlf
timer
TD
Clock control
X
X
no
in on: EN & IN = “LOW”
for
TD or TDreg
in off: timer
TD
Output voltage clamp active
X
(regulated
channels)
no
in on: EN & IN = “LOW”
for
TD or TDreg
in off: timer
TD


类似零件编号 - L9347PD

制造商部件名数据表功能描述
logo
STMicroelectronics
L9341 STMICROELECTRONICS-L9341 Datasheet
130Kb / 10P
   QUAD LOW SIDE DRIVER
L9341H STMICROELECTRONICS-L9341H Datasheet
130Kb / 10P
   QUAD LOW SIDE DRIVER
L9341V STMICROELECTRONICS-L9341V Datasheet
130Kb / 10P
   QUAD LOW SIDE DRIVER
L9346 STMICROELECTRONICS-L9346 Datasheet
96Kb / 13P
   QUAD INTELLIGENT POWER LOW SIDE SWITCH
L9346DIE STMICROELECTRONICS-L9346DIE Datasheet
96Kb / 13P
   QUAD INTELLIGENT POWER LOW SIDE SWITCH
More results

类似说明 - L9347PD

制造商部件名数据表功能描述
logo
STMicroelectronics
L9352 STMICROELECTRONICS-L9352 Datasheet
328Kb / 21P
   INTELLIGENT QUAD 2X5A/2X2.5A LOW-SIDE SWITCH
L9352B STMICROELECTRONICS-L9352B Datasheet
611Kb / 21P
   INTELLIGENT QUAD (2X5A/2X2.5A) LOW-SIDE SWITCH
L9349 STMICROELECTRONICS-L9349 Datasheet
285Kb / 12P
   QUAD INTELLIGENT POWER LOW SIDE SWITCH
L9332 STMICROELECTRONICS-L9332 Datasheet
255Kb / 17P
   Quad intelligent power low side switch
logo
Texas Instruments
TPIC2404 TI-TPIC2404 Datasheet
88Kb / 7P
[Old version datasheet]   INTELLIGENT-POWER QUAD LOW-SIDE SWITCH
logo
STMicroelectronics
L9346 STMICROELECTRONICS-L9346 Datasheet
96Kb / 13P
   QUAD INTELLIGENT POWER LOW SIDE SWITCH
logo
Texas Instruments
TPIC2404KN TI-TPIC2404KN Datasheet
90Kb / 7P
[Old version datasheet]   INTELLIGENT-POWER QUAD LOW-SIDE SWITCH
logo
STMicroelectronics
L9349-LF STMICROELECTRONICS-L9349-LF Datasheet
267Kb / 17P
   Quad intelligent power low side switch
IPS4260L STMICROELECTRONICS-IPS4260L Datasheet
834Kb / 29P
   Quad low-side intelligent power switch
Rev 5 - July 2021
logo
Freescale Semiconductor...
33892 FREESCALE-33892 Datasheet
847Kb / 28P
   Quad Intelligent High-Side Switch
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com