Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Mexican  ▼
ALLDATASHEET.COM.MX

X  

Preview PDF HTML

L9945 Datasheet(PDF) 39 Page - STMicroelectronics

No. de pieza L9945
Descripción Electrónicos  Automotive fully configurable 8-channel High/Low side MOSFET pre-driver suitable for 12 V and 24 V systems
PDF  151 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9945 Datasheet(HTML) 39 Page - STMicroelectronics

Back Button L9945 Datasheet HTML 35Page - STMicroelectronics L9945 Datasheet HTML 36Page - STMicroelectronics L9945 Datasheet HTML 37Page - STMicroelectronics L9945 Datasheet HTML 38Page - STMicroelectronics L9945 Datasheet HTML 39Page - STMicroelectronics L9945 Datasheet HTML 40Page - STMicroelectronics L9945 Datasheet HTML 41Page - STMicroelectronics L9945 Datasheet HTML 42Page - STMicroelectronics L9945 Datasheet HTML 43Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 39 / 151 page
background image
Figure 19. Possible faults in peak & hold configuration
GADG2802171105PS
BATT12
HS NMOS
LS NMOS
DRN1
VBATT
GNSP1
SNGP1
RG
RPD
CM
RM
M1
RSH
GND
DFW
CBATT
DRN4
GNSP4
SNGP4
RG
RPD
CM
RM
M1
RSH
DZFB
DFB
PGND34
GND
GND
CEMI
GND
OUT4
OUT1
STB
OL
OL
STG
SCL
STB
STG
CEMI
RFB
VBATT
BATT34
5.7
Internal oscillator
The L9945 has an internal oscillator providing the timing and control for all device operating functions. The
nominal clock frequency is 10 MHz. The oscillator is functional when VDD5 > VPOR.
5.7.1
Spread spectrum
In order to minimize the noise generated by the internal clock signal, the device offers the spread spectrum
functionality. Such feature is disabled by default and can be activated by programming the spread_spectrum bit.
5.7.2
Internal oscillator electrical characteristics
The table below reports the detailed electrical characteristics of the internal oscillator.
Note:
Tj = Tj_op; VVPS_UV < VVPS < 60 V, all supplies are independent; 4.5 V < VDD5 < 5.5 V; 3.0 V < VIO < 5.5 V,
unless otherwise noted.
L9945
Internal oscillator
DS12275 - Rev 8
page 39/151



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Descarga

Go To PDF Page


Enlace URL



¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Enlace a la hoja de datos    |   Intercambio de Enlaces   |   Lista de Fabricantes
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