Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

BU45L244 Datasheet(PDF) 9 Page - Rohm

No. de pieza BU45L244
Descripción Electrónicos  Counter Timer Built-in CMOS Voltage Detector IC
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU45L244 Datasheet(HTML) 9 Page - Rohm

Back Button BU45L244 Datasheet HTML 5Page - Rohm BU45L244 Datasheet HTML 6Page - Rohm BU45L244 Datasheet HTML 7Page - Rohm BU45L244 Datasheet HTML 8Page - Rohm BU45L244 Datasheet HTML 9Page - Rohm BU45L244 Datasheet HTML 10Page - Rohm BU45L244 Datasheet HTML 11Page - Rohm BU45L244 Datasheet HTML 12Page - Rohm BU45L244 Datasheet HTML 13Page - Rohm Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 17 page
background image
www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved.
TSZ02201-0R7R0G300130-1-2
TSZ22111
15
001
9/14
17.May.2013 Rev.003
BU45Kxxxx, BU46Kxxxx, BU45Lxxxx, BU46Lxxxx series
Datasheet
Application Information
Explanation of Operation
For both the open drain type (Fig.13) and the CMOS output type (Fig.14), the detection and release voltages are used as
threshold voltages. When the voltage applied to the VDD pins reaches the applicable threshold voltage, the VOUT terminal
voltage switches from either “High” to “Low” or from “Low” to “High”. Because the BU45xxxxx series uses an open drain
output type, it is necessary to connect a pull-up resistor to VDD or another power supply if needed [The output “High” voltage
(VOUT) in this case becomes VDD or the voltage of the other power supply].
Fig.13 (BU45xxxxx Type Internal Block Diagram)
Fig.14 (BU46xxxxx Type Internal Block Diagram)
Reference Data
Examples of Leading (tPLH) and Falling (tPHL) Output
Part Number
tPLH[ms]
tPHL[µs]
BU45K232G
208
1.4
BU46K232G
208
1.4
VDD=1.8V
2.8V
VDD=2.8V
1.8V
*This data is for reference only.
The figures will vary with the application, so please confirm actual operating conditions before use.
Timing Waveform
Example: The following shows the relationship between the input voltages VDD and the output voltage VOUT when the input
power supply voltage VDD is made to sweep up and sweep down (the circuits are those in Fig. 13 and 14).
1
When the power supply is turned on, the output is unstable from
after over the operating limit voltage (VOPL) until tPHL. Therefore it is
possible that the reset signal is not outputted when the rise time of
VDD is faster than tPHL.
2
When VDD is greater than VOPL but less than the reset release
voltage (VDET +
∆VDET), the output voltages will switch to Low.
3
If VDD exceeds the reset release voltage (VDET +
∆VDET), the
counter timer start and VOUT switches from L to H.
4
If VDD drops below the detection voltage (VDET) when the power
supply is powered down or when there is a power supply fluctuation,
VOUT switches to L (with a delay of tPHL).
5
The potential difference between the detection voltage and the
release voltage is known as the hysteresis width (
∆VDET). The
system is designed such that the output does not toggle with power
supply fluctuations within this hysteresis width, thus, preventing
malfunctions due to noise.
Timing may change depending on application and use. Please verify and confirm using practical applications.
Fig.15
Timing Waveform
VDD
VDET+
Δ
VDET
VDET
VOPL
0V
tPHL
VOUT
tPLH
tPHL
tPLH
VOL
VOH
VDD
Vref
R1
R2
R3
VDD
GND
Oscillator
Circuit Counter
Timer
Q1
VOUT
VDD
Reset
GND
Reset
Q2
Q1
Vref
R1
R2
R3
VDD
Oscillator
Circuit Counter
Timer
VOUT


Número de pieza similar - BU45L244

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
NXP Semiconductors
BU4506 PHILIPS-BU4506 Datasheet
44Kb / 6P
   Silicon Diffused Power Transistor
July 1999 Rev 1.000
BU4506 PHILIPS-BU4506 Datasheet
45Kb / 6P
   Silicon Diffused Power Transistor
July 1999 Rev 1.000
BU4506AF PHILIPS-BU4506AF Datasheet
44Kb / 6P
   Silicon Diffused Power Transistor
July 1999 Rev 1.000
logo
Inchange Semiconductor ...
BU4506AF ISC-BU4506AF Datasheet
244Kb / 2P
   isc Silicon NPN Power Transistor
logo
NXP Semiconductors
BU4506AX PHILIPS-BU4506AX Datasheet
45Kb / 6P
   Silicon Diffused Power Transistor
July 1999 Rev 1.000
More results

Descripción similar - BU45L244

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Rohm
BD45451G-TR ROHM-BD45451G-TR Datasheet
482Kb / 16P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45301G-TR ROHM-BD45301G-TR Datasheet
570Kb / 16P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45312G-TR ROHM-BD45312G-TR Datasheet
570Kb / 16P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45EXXXX-M ROHM-BD45EXXXX-M Datasheet
1Mb / 18P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45E235G-MTR ROHM-BD45E235G-MTR Datasheet
427Kb / 17P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45235G-TR ROHM-BD45235G-TR Datasheet
482Kb / 16P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45XXG ROHM-BD45XXG_09 Datasheet
280Kb / 10P
   Counter Timer Built-in CMOS Voltage Detector IC
BD45485 ROHM-BD45485 Datasheet
482Kb / 16P
   Counter Timer Built-in CMOS Voltage Detector IC Package SSOP5 is similar to SOT-23-5 (JEDEC)
BD37A19FVM ROHM-BD37A19FVM_13 Datasheet
555Kb / 18P
   Voltage Detector ICs with Watchdog Timer Built-in watchdog timer
BD45XXXG ROHM-BD45XXXG Datasheet
222Kb / 6P
   Voltage Detector IC built in Delay Citcuit
More results


Html Pages

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


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   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