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PDF NCV8769 Data sheet ( Hoja de datos )
| Número de pieza | NCV8769 | |
| Descripción | Ultra Low Iq 150 mA LDO Regulator | |
| Fabricantes | ON Semiconductor | |
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NCV8769
Ultra Low Iq 150 mA LDO
Regulator with Reset and
Early Warning
The NCV8769 is 150 mA LDO regulator with integrated reset and
early warning functions dedicated for microprocessor applications. Its
robustness allows NCV8769 to be used in severe automotive
environments. Ultra low quiescent current as low as 25 mA typical for
NCV8769 makes it suitable for applications permanently connected to
battery requiring ultra low quiescent current with or without load. The
NCV8769 contains protection functions as current limit, thermal
shutdown and reverse output current protection.
Features
• Output Voltage Options: 5 V
• Output Voltage Accuracy: $2%
• Output Current up to 150 mA
• Ultra Low Quiescent Current:
− typ 25 mA for Adjustable Early Warning Threshold Option
• Very Low Dropout Voltage
• Microprocessor Compatible Control Functions:
− Reset with Adjustable Power−on Delay
− Early Warning
• Wide Input Voltage Operation Range: up to 40 V
• Protection Features:
− Current Limitation
− Thermal Shutdown
• These are Pb−Free Devices
Typical Applications
• Body Control Module
• Instruments and Clusters
• Occupant Protection and Comfort
• Powertrain
VBAT
Cin
0.1 mF
RSI2
RSI1
Vin Vout
SI
NCV8769y0
DT
SO
RO
GND
Cout
1 mF
VDD
Microprocessor
I/O
RESET
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14
1
MARKING
DIAGRAMS
14
SO−14
D SUFFIX
CASE 751A
V8769YZXXG
AWLYWWG
1
Y = Timing and Reset Threshold Option*
Z = Early Warning Option*
XX = Voltage Option
5.0 V (XX = 50)
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
*See Application Information Section.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
Figure 1. Application Circuit
© Semiconductor Components Industries, LLC, 2011
June, 2011 − Rev. 1
1
Publication Order Number:
NCV8769/D
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NCV8769
THERMAL CHARACTERISTICS
Rating
Symbol
Thermal Characteristics, SO−14 (Note 5)
Thermal Resistance, Junction−to−Air (Note 6)
Thermal Reference, Junction−to−Pin4 (Note 6)
RθJA
YψJP4
5. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
6. Values based on copper area of 645 mm2 (or 1 in2) of 1 oz copper thickness and FR4 PCB substrate.
Value
94
18
Unit
°C/W
OPERATING RANGES (Note 7)
Rating
Symbol
Min
Input Voltage (Note 8)
Vin 5.5
Junction Temperature
TJ −40
7. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
8. Minimum Vin = 5.5 V or (Vout + VDO), whichever is higher.
Max Unit
40 V
150 °C
ELECTRICAL CHARACTERISTICS Vin = 13.2 V, VDT = GND, VSI = Vout, RSI1 & RSI2 not used, Cin = 0.1 mF, Cout = 1 mF, for typical
values TJ = 25°C, for min/max values TJ = −40 °C to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter
Test Conditions
Symbol Min Typ Max Unit
REGULATOR OUTPUT
Output Voltage (Accuracy %)
Vin = 5.6 V to 40 V, Iout = 0.1 mA to 100 mA
Vin = 5.8 V to 16 V, Iout = 0.1 mA to 150 mA
Vout
4.9 5.0 5.1
V
4.9 5.0 5.1
(−2 %)
(+2%)
Output Voltage (Accuracy %)
TJ = −40°C to 125°C
Vin = 5.8 V to 28 V, Iout = 0 mA to 150 mA
Vout
V
4.9 5.0 5.1
(−2 %)
(+2%)
Line Regulation
Load Regulation
Dropout Voltage (Note 11)
Output Capacitor for Stability
(Note 12)
Vin = 6 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
Regline
−20
0
20 mV
Regload
−40
10
40 mV
VDO
− 225 450 mV
− 300 600
Cout 1.0 − 100 mF
ESR 0.01 − 100 W
QUIESCENT CURRENTS
Quiescent Current, Iq = Iin − Iout
CURRENT LIMIT PROTECTION
Iout = 0.1 mA, TJ = 25°C
Iout = 0.1 mA to 150 mA, TJ ≤ 125°C
Iq − 25 31 mA
− − 33
Current Limit
Short Circuit Current Limit
PSRR
Vout = 0.96 x Vout_nom
Vout = 0 V
ILIM 205 − 525 mA
ISC 205 − 525 mA
Power Supply Ripple Rejection
(Note 12)
f = 100 Hz, 0.5 Vpp
PSRR − 60 − dB
DT (Reset Delay Time Select)
DT Threshold Voltage
Logic Low
Logic High
Vth(DT)
−
2
V
− 0.8
−−
DT Input Current
VDT = 5 V
IDT − − 1 μA
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10. 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.
11. Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V.
12. Values based on design and/or characterization.
13. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options.
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NCV8769
DEFINITIONS
General
All measurements are performed using short pulse low
duty cycle techniques to maintain junction temperature as
close as possible to ambient temperature.
the device is capable to supply minimum 200 mA without
sending Reset signal to microprocessor.
Short Circuit Current Limit is output current value
measured with output of the regulator shorted to ground.
Output Voltage
The output voltage parameter is defined for specific
temperature, input voltage and output current values or
specified over Line, Load and Temperature ranges.
PSRR
Power Supply Rejection Ratio is defined as ratio of output
voltage and input voltage ripple. It is measured in decibels
(dB).
Line Regulation
The change in output voltage for a change in input voltage
measured for specific output current over operating ambient
temperature range.
Line Transient Response
Typical output voltage overshoot and undershoot
response when the input voltage is excited with a given
slope.
Load Regulation
The change in output voltage for a change in output
current measured for specific input voltage over operating
ambient temperature range.
Load Transient Response
Typical output voltage overshoot and undershoot
response when the output current is excited with a given
slope between low−load and high−load conditions.
Dropout Voltage
The input to output differential at which the regulator
output no longer maintains regulation against further
reductions in input voltage. It is measured when the output
drops 100 mV below its nominal value. The junction
temperature, load current, and minimum input supply
requirements affect the dropout level.
Quiescent Current
Quiescent Current (Iq) is the difference between the input
current (measured through the LDO input pin) and the
output load current.
Thermal Protection
Internal thermal shutdown circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded. When activated at typically 175°C,
the regulator turns off. This feature is provided to prevent
failures from accidental overheating.
Maximum Package Power Dissipation
The power dissipation level is maximum allowed power
dissipation for particular package or power dissipation at
which the junction temperature reaches its maximum
operating value, whichever is lower.
Current Limit and Short Circuit Current Limit
Current Limit is value of output current by which output
voltage drops below 96% of its nominal value. It means that
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