Enable-IT 350 Manual de usuario

Busca en linea o descarga Manual de usuario para No Enable-IT 350. NCV8772 - Ultra Low LDO Regulator with Enable and Reset [en] Manual de usuario

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© Semiconductor Components Industries, LLC, 2011
December, 2011 − Rev. 3
1 Publication Order Number:
NCV8772/D
NCV8772
Ultra Low I
q
350 mA LDO
Regulator with Enable and
Reset
The NCV8772 is 350 mA LDO regulator with integrated reset
functions dedicated for microprocessor applications. Its robustness allows
NCV8772 to be used in severe automotive environments. Ultra low
quiescent current as low as 24 mA typical makes it suitable for
applications permanently connected to battery requiring ultra low
quiescent current with or without load. This feature is especially critical
when modules remain in active mode when ignition is off. The Enable
function can be used for further decrease of quiescent current in
shutdown mode to 1 mA. The NCV8772 contains protection functions as
current limit, thermal shutdown and reverse output current protection.
Features
• Output Voltage Options: 3.3 V and 5 V
• Output Voltage Accuracy: ±1.5% (T
J
= 25°C to 125°C)
• Output Current up to 350 mA
• Ultra Low Quiescent Current: typ 24 mA (max 30 mA)
• Very Wide Range of C
out
and ESR Values for Stability
• Enable Function
− 1 mA Max Quiescent Current when disabled
• Microprocessor Compatible Control Functions:
− Reset with Adjustable Power−On Delay
• Wide Input Voltage Operation Range: up to 40 V
• Protection Features
− Current Limitation
− Thermal Shutdown
− Reverse Output Current Protection
• These are Pb−Free Devices
Typical Applications
• Body Control Module
• Instruments and Clusters
• Occupant Protection and Comfort
• Powertrain
NCV8772
GND
Figure 1. Typical Application Schematic
V
in
V
out
RESET
Microprocessor
C
out
1 mF
ON
OFF
EN
C
in
0.1 mF
V
BAT
V
out
V
DD
RO
DT*
* D2PAK−7 ONLY
http://onsemi.com
MARKING
DIAGRAMS
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
ORDERING INFORMATION
y = Timing and Reset Threshold Option
x, xx = Voltage Option
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
D
2
PAK−5
D5S SUFFIX
CASE 936A
NC
V8772yxx
AWLYWWG
772yxxG
ALYWW
1
NC
V8772yxx
AWLYWWG
1
DPAK−5
DT SUFFIX
CASE 175AA
D
2
PAK−7
D7S SUFFIX
CASE 936AB
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Indice de contenidos

Pagina 1 - Regulator with Enable and

© Semiconductor Components Industries, LLC, 2011December, 2011 − Rev. 31 Publication Order Number:NCV8772/DNCV8772Ultra Low Iq 350 mA LDORegulator wi

Pagina 2 - PIN CONNECTIONS

NCV8772http://onsemi.com10TYPICAL CHARACTERISTICSFigure 24. PSRR vs. Frequency(5 V Option)010203040506070809010010 100 1000 10000 100000f, FREQUENCY (

Pagina 3 - ESD CAPABILITY (Note 3)

NCV8772http://onsemi.com11TYPICAL CHARACTERISTICSFigure 30. Reset Threshold vs. Temperature(5 V Option)4.604.654.704.754.80−40 −20 0 20 40 60 80 100 1

Pagina 4 - ELECTRICAL CHARACTERISTICS V

NCV8772http://onsemi.com12DEFINITIONSGeneralAll measurements are performed using short pulse lowduty cycle techniques to maintain junction temperature

Pagina 5

NCV8772http://onsemi.com13APPLICATIONS INFORMATIONThe NCV8772 regulator is self−protected with internalthermal shutdown and internal current limit. Ty

Pagina 6

NCV8772http://onsemi.com14RESET DELAY AND RESET THRESHOLD OPTIONS(D2PAK−7)DT = GNDResetTimeDT = VoutResetTimeResetThresholdNCV87721D7S 8 ms 128 ms 93%

Pagina 7

NCV8772http://onsemi.com15PACKAGE DIMENSIONSDPAK 5, CENTER LEAD CROPCASE 175AAISSUE A*For additional information on our Pb−Free strategy and soldering

Pagina 8

NCV8772http://onsemi.com16PACKAGE DIMENSIONSD2PAK 5CASE 936A−02ISSUE C5 REFA123KBSHDGCEMLPNRVUTERMINAL 6NOTES:1. DIMENSIONING AND TOLERANCING PER AN

Pagina 9

NCV8772http://onsemi.com17PACKAGE DIMENSIONSD2PAK−7 (SHORT LEAD)CASE 936AB−01ISSUE B5 REFA123KBSHDGCEMLPNRVUTERMINAL 6NOTES:1. DIMENSIONING AND TOLE

Pagina 10 - TYPICAL CHARACTERISTICS

NCV8772http://onsemi.com2DriverWithCurrentLimitGNDEnableENROThermalShutdownOscillatorReferenceErorr Amplifier Reset ComparatorTimingCircuitReset Drive

Pagina 11

NCV8772http://onsemi.com3ABSOLUTE MAXIMUM RATINGSRating Symbol Min Max UnitInput Voltage (Note 1) DCTransient, t < 100 msVin−0.3−4045VInput Current

Pagina 12

NCV8772http://onsemi.com4RECOMMENDED OPERATING RANGE (Note 7)RatingSymbol Min Max UnitInput Voltage (Note 8) Vin4.5 40 VJunction Temperature TJ−40 150

Pagina 13

NCV8772http://onsemi.com5ELECTRICAL CHARACTERISTICS Vin = 13.2 V, VEN = 3 V, Cin = 0.1 mF, Cout = 1 mF, for typical values TJ = 25°C, for min/maxvalue

Pagina 14

NCV8772http://onsemi.com6TYPICAL CHARACTERISTICSFigure 4. Quiescent Current vs. Temperature2021222324252627282930−40 −20 0 20 40 60 80 100 120 140 160

Pagina 15 - PACKAGE DIMENSIONS

NCV8772http://onsemi.com7TYPICAL CHARACTERISTICSFigure 9. Output Voltage vs. Input Voltage(5 V Option)0123456012345678Vin, INPUT VOLTAGE (V)Vout, OUTP

Pagina 16

NCV8772http://onsemi.com8TYPICAL CHARACTERISTICSFigure 13. Output Current Limit vs. InputVoltage (5 V Option)01002003004005006007008000 5 10 15 20 25

Pagina 17

NCV8772http://onsemi.com9TYPICAL CHARACTERISTICS14.2 V13 V3.42 V3.33 V3.3 V12.2 VVin(1 V/div)Vout(50 mV/div)Figure 18. Line Transients(5 V Option)TJ =

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