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

X  

TC1054-3.3VCT Datasheet(PDF) 10 Page - TelCom Semiconductor, Inc

No. de pieza TC1054-3.3VCT
Descripción Electrónicos  50mA CMOS LDO WITH SHUTDOWN AND ERROR OUTPUT
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  TELCOM [TelCom Semiconductor, Inc]
Página de inicio  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC1054-3.3VCT Datasheet(HTML) 10 Page - TelCom Semiconductor, Inc

Back Button TC1054-3.3VCT Datasheet HTML 4Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 5Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 6Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 7Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 8Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 9Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 10Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 11Page - TelCom Semiconductor, Inc TC1054-3.3VCT Datasheet HTML 12Page - TelCom Semiconductor, Inc  
Zoom Inzoom in Zoom Outzoom out
 10 / 12 page
background image
TC1055
100mA CMOS LDO WITH SHUTDOWN
AND ERROR OUTPUT
4
PRELIMINARY INFORMATION
TC1055-01 6/5/97
DETAILED DESCRIPTION
The TC1055 is a precision fixed output voltage regula-
tor. (If an adjustable version is desired, please see the
TC1070 or TC1071 data sheets.) Unlike the bipolar regula-
tors, the TC1055 supply current does not increase with load
current. In addition, VOUT remains stable and within regula-
tion at very low load currents (an important consideration in
RTC and CMOS RAM battery back-up applications).
Figure 1 shows a typical application circuit. The regula-
tor is enabled any time the shutdown input (SHDN) is at or
above VIH, and shutdown (disabled) when SHDN is at or
below VIL. SHDN may be controlled by a CMOS logic gate,
or I/O port of a microcontroller. If the SHDN input is not
required, it should be connected directly to the input supply.
While in shutdown, supply current decreases to 0.05
µA
(typical) and VOUT falls to zero volts and ERROR is open
circuited.
ERROR Open Drain Output
ERROR is driven low whenever VOUT falls out of regu-
lation by more than – 5% (typical). This condition may be
caused by low input voltage, output current limiting, or
thermal limiting. The ERROR threshold is 5% below rated
VOUT regardless of the programmed output voltage value
(e.g. ERROR = VOL at 4.75 (typ.) for a 5.0V regulator and
2.85V (typ.) for a 3.0V regulator). ERROR output operation
is shown in Figure 2.
Note that ERROR is active when VOUT falls to VTH, and
inactive when VOUT rises above VTH by VHYS.
As shown in Figure 1, ERROR can be used as a battery
low flag, or as a processor RESET signal (with the addition
of timing capacitor C2). R1 x C2 should be chosen to
maintain ERROR below VIH of the processor RESET input
for at least 200msec to allow time for the system to stabilize.
Pull-up resistor R1 can be tied to VOUT, VIN or any other
voltage less than (VIN + 0.3V).
Output Capacitor
A 1
µF(min) capacitor from VOUT to ground is recom-
mended. The output capacitor should have an effective
series resistance of 5
Ω or less, and a resonant frequency
above 1MHz. A 1
µF capacitor should be connected from
VIN to GND if there is more than 10 inches of wire between
the regulator and the AC filter capacitor, or if a battery is
used as the power source. Aluminum electrolytic or tanta-
lum capacitor types can be used. (Since many aluminum
electrolytic capacitors freeze at approximately – 30
°C, solid
tantalums are recommended for applications operating
below – 25
°C.) When operating from sources other than
batteries, supply-noise rejection and transient response
can be improved by increasing the value of the input and
output capacitors and employing passive filtering tech-
niques.
Thermal Considerations
Thermal Shutdown
Integrated thermal protection circuitry shuts the regula-
tor off when die temperature exceeds 160
°C. The regulator
remains off until the die temperature drops to approximately
150
°C.
Power Dissipation
The amount of power the regulator dissipates is prima-
rily a function of input and output voltage, and output current.
The following equation is used to calculate worst case
actual power dissipation:
Figure 1. Typical Application Circuit
1
µF
C1
0.2
µF
C2
R1
1M
V+
C2 Requires Only
if ERROR is used as a
Processor RESET Signal
(See Text)
Shutdown Control
(to CMOS Logic or Tie
to V
IN if unused)
BATTLOW
or RESET
TC1055VCT
VIN
BATTERY
VOUT
ERROR
SHDN
GND
VOUT
1
µF
Figure 2. ERROR Output Operation
VIH
VOL
ERROR
V
TH
V
OUT
HYSTERESIS (V
HYS)


Número de pieza similar - TC1054-3.3VCT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Microchip Technology
TC1054-3.3VCT MICROCHIP-TC1054-3.3VCT Datasheet
501Kb / 18P
   50mA, 100mA and 150mA CMOS LDOs with Shutdown and ERROR Output
2002
TC1054-3.3VCT713 MICROCHIP-TC1054-3.3VCT713 Datasheet
389Kb / 18P
   50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output
2007
TC1054-3.3VCT713 MICROCHIP-TC1054-3.3VCT713 Datasheet
456Kb / 20P
   50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output
11/29/12
More results

Descripción similar - TC1054-3.3VCT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
TelCom Semiconductor, I...
TC1072 TELCOM-TC1072 Datasheet
126Kb / 12P
   50mA CMOS LDO WITH SHUTDOWN, ERROR OUTPUT AND VREF BYPASS
logo
Microchip Technology
TC2054 MICROCHIP-TC2054 Datasheet
519Kb / 16P
   50mA, 100mA, and 150mA CMOS LDOs with Shutdown and Error Output
2002
TC1054 MICROCHIP-TC1054 Datasheet
501Kb / 18P
   50mA, 100mA and 150mA CMOS LDOs with Shutdown and ERROR Output
2002
logo
TelCom Semiconductor, I...
TC1173 TELCOM-TC1173 Datasheet
54Kb / 7P
   300mA CMOS LDO with Shutdown, ERROR Output and Bypass
logo
Microchip Technology
TC1173 MICROCHIP-TC1173 Datasheet
448Kb / 12P
   300mA CMOS LDO with Shutdown ERROR output and Bypass
2002
TC1173 MICROCHIP-TC1173_13 Datasheet
217Kb / 14P
   300mA CMOS LDO with Shutdown ERROR Output and Bypass
10/26/12
TC1072 MICROCHIP-TC1072_07 Datasheet
727Kb / 22P
   50mA and 100mA CMOS LDOs with Shutdown, ERROR Output and VREF Bypass
2007
TC1073 MICROCHIP-TC1073 Datasheet
564Kb / 20P
   50mA and 100mA CMOS LDOs with Shutdown, ERROR Output and VREF Bypass
2002
TC1072-25VCH713 MICROCHIP-TC1072-25VCH713 Datasheet
658Kb / 22P
   50mA and 100mA CMOS LDOs with Shutdown, ERROR Output and VREF Bypass
12/08/06
logo
TelCom Semiconductor, I...
TC1070 TELCOM-TC1070 Datasheet
117Kb / 12P
   50mA ADJUSTABLE CMOS LDO WITH SHUTDOWN
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


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