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PDF NCV8768 Data sheet ( Hoja de datos )

Número de pieza NCV8768
Descripción Ultra Low Iq 150 mA LDO Regulator
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No Preview Available ! NCV8768 Hoja de datos, Descripción, Manual

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NCV8768
Ultra Low Iq 150 mA LDO
Regulator with Window
Watchdog, Enable and
Reset
The NCV8768 is 150 mA LDO regulator with integrated window
watchdog and reset functions dedicated for microprocessor
applications. Its robustness allows NCV8768 to be used in severe
automotive environments. Ultra low quiescent current as low as 31 mA
typical makes it suitable for applications permanently connected to
battery requiring ultra low quiescent current with or without load. The
Enable function can be used for further decrease of quiescent current
down to 1 mA.
The NCV8768 contains protection functions as current limit and
thermal shutdown.
Features
Output Voltage Options: 5 V
Output Voltage Accuracy: $1.5% (TJ = 25°C to 125°C)
Output Current up to 150 mA
Ultra Low Quiescent Current: Typ 31 mA (max 35 mA)
Very Low Dropout Voltage
Enable Function
Microprocessor Compatible Control Functions:
Reset with Adjustable Poweron Delay
Window Watchdog
Wide Input Voltage Operation Range: up to 40 V
Protection Features:
Current Limitation
Reverse Output Current
Thermal Shutdown
These are PbFree Devices
Typical Applications
Body Control Module
Instruments and Clusters
Occupant Protection and Comfort
Powertrain
VBAT
V in V out
Cin
0.1 mF
NCV8768
OFF ON
RO
WDI
EN WM1
WM2
GND
Vout
Cout
1.0 mF
VDD
Microprocessor
RESET
I/O
I/O
I/O
Figure 1. Application Schematic
http://onsemi.com
14
1
SOIC14
CASE 751A
MARKING
DIAGRAMS
14
V8768ZZXXG
AWLYWW
1
ZZ = Timing, Reset Threshold,
Watchdog Control Options*
XX = Voltage Options
= 5 V (XX = 50)
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = PbFree Package
*See APPLICATION INFORMATION Section.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
June, 2011 Rev. 0
1
Publication Order Number:
NCV8768/D
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NCV8768
THERMAL CHARACTERISTICS (Note 6)
Rating
Symbol
Value
Thermal Characteristics, SOIC14 (Note 6)
Thermal Resistance, JunctiontoAir (Note 7)
Thermal Reference, JunctiontoLead4 (Note 7)
RRYqJJAL
95
18.2
6. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
7. Values based on copper area of 645 mm2 (or 1 in2) of 1 oz copper thickness and FR4 PCB substrate.
Unit
°C/W
RECOMMENDED OPERATING RANGES (Note 8)
Rating
Symbol
Min
Input Voltage (Note 9)
Vin 4.5
Junction Temperature
TJ 40
8. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
9. Minimum Vin = 4.5 V or (Vout + VDO), whichever is higher.
Max
40
150
Unit
V
°C
ELECTRICAL CHARACTERISTICS
Vin = 13.2 V, Cin = 0.1 mF, Cout = 1.0 mF, for typical values TJ = 25°C, for min/max values TJ = 40°C to 150°C; unless otherwise noted.
(Notes 10 and 11)
Parameter
Test Conditions
Symbol Min Typ Max Unit
REGULATOR OUTPUT
Output Voltage (Accuracy %)
Output Voltage (Accuracy %)
TJ = 25°C to 125°C
Vin = 5.5 V to 16 V, Iout = 0.1 mA to 100 mA
Vin = 5.55 V to 40 V, Iout = 0.1 mA to 100 mA
Vin = 5.7 V to 16 V, Iout = 0.1 mA to 150 mA
Vout 4.925 5.0 5.075 V
(1.5%)
(+1.5%)
Vout
4.9 5.0 5.1
V
4.9 5.0 5.1
(2%)
(+2%)
Output Voltage (Accuracy %)
Line Regulation
Load Regulation
Dropout Voltage (Note 12)
Output Capacitor for Stability (Note 13)
TJ = 40°C to 125°C
Vin = 5.5 V to 28 V, Iout = 0 mA
Vin = 5.5 V to 28 V, Iout = 5 mA
Iout = 0.1 mA to 150 mA
Iout = 100 mA
Iout = 150 mA
Iout = 0 mA to 150 mA
Vout
Regline
Regload
VDO
Cout
ESR
4.9 5.0 5.1
(2%)
(+2%)
20 0
20
30 10
30
225 450
300 600
1.0
− − 100
V
mV
mV
mV
mF
W
Disable and Quiescent Current
Disable Current
Quiescent Current (Iq = Iin – Iout)
Current Limit Protection
VEN = 0 V,TJ < 85°C
Iout = 100 mA, TJ = 25°C
Iout = 100 mA, TJ v 125°C
IDIS − − 1 mA
Iq 31 35 mA
− − 36
Current Limit
Short Circuit Current Limit
Reverse Output Current Protection
Vout = 0.96 x Vout_nom
Vout = 0 V
ILIM 205 525 mA
ISC 205 525 mA
Reverse Output Current Protection
PSRR
VEN = 0 V, Iout = 1 mA
Vout_rev
2 5.5 V
Power Supply Ripple Rejection (Note 13) f = 100 Hz, 0.5Vpp
PSRR
60 dB
10. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
11. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [TJ. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
12. Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V.
13. Values based on design and/or characterization.
14. Recommended for typical trigger time. TWD = tCW + 1/2 * tOW
http://onsemi.com
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NCV8768 arduino
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4.80
4.75
NCV8768
TYPICAL CHARACTERISTICS
Vin = 13.2 V
18
17
Vin = 13.2 V
Reset Mode = FAST
4.70 16
4.65 15
4.60
40 20 0 20 40 60 80 100 120 140 160
TJ, JUNCTION TEMPERATURE (°C)
Figure 22. Reset Threshold vs Temperature
14
40 20 0 20 40 60 80 100 120 140 160
TJ, JUNCTION TEMPERATURE (°C)
Figure 23. Reset Delay Time vs Temperature
http://onsemi.com
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