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NCV8508 데이터시트 PDF




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부품번호 NCV8508 기능
기능 150mA LDO
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NCV8508 데이터시트, 핀배열, 회로
NCV8508
5.0 V, 250 mA LDO with
Watchdog and RESET
The NCV8508 is a precision micropower Low Dropout (LDO)
voltage regulator. The part contains many of the required features for
powering microprocessors. Its robustness makes it suitable for severe
automotive environments. In addition, the NCV8508 is ideal for use in
battery operated, microprocessor controlled equipment because of its
extremely low quiescent current.
Features
Output Voltage: 5.0 V
±3.0% Output Voltage
IOUT Up to 250 mA
Quiescent Current Independent of Load
Micropower Compatible Control Functions:
Wakeup
Watchdog
RESET
Low Quiescent Current (100 mA typ)
Protection Features:
Thermal Shutdown
Short Circuit
45 V Operation
Internally Fused Leads in SO16L Package
NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
AEC Qualified
PPAP Capable
This is a PbFree Device*
MRA4004T3
VBAT
NCV8508
C1* VIN
0.1 mF
VOUT
WDI
Delay RESET
RDelay
60 k
GND WAKEUP
C2
1.0 mF
VDD
I/O
RESET
I/O
*C1 required if regulator is located far from power supply filter.
Figure 1. Application Circuit
http://onsemi.com
16
1
SO16L
DW SUFFIX
CASE 751G
MARKING
DIAGRAMS
16
NCV85085
AWLYYWWG
1
D2PAK7
DPS SUFFIX
CASE 936AB
8
1
SO8 EP
PD SUFFIX
CASE 751AC
NCV85085
AWLYWWG
1
8
V8508
AYWWG
G
1
A
WL
YY, Y
WW
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 23 of this data sheet.
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2009
October, 2009 Rev. 27
1
Publication Order Number:
NCV8508/D




NCV8508 pdf, 반도체, 판매, 대치품
NCV8508
ELECTRICAL CHARACTERISTICS (40°C TJ 125°C; 6.0 V VIN 28 V, 100 mA IOUT 150 mA, C2 = 1.0 mF, RDelay = 60 k;
unless otherwise specified.)
Characteristic
Test Conditions
Min Typ Max Unit
OUTPUT
Output Voltage
Dropout Voltage (VIN VOUT)
Load Regulation
Line Regulation
Current Limit
Thermal Shutdown
Quiescent Current
RESET
Threshold
Output Low
Output High
Delay Time
WATCHDOG INPUT
Threshold High
Threshold Low
Hysteresis
Input Current
Pulse Width
IOUT = 150 mA. Note 4
VIN = 14 V, 100 mA IOUT 150 mA
6.0 V VIN 28 V, IOUT = 5.0 mA
Guaranteed by Design
VIN = 12 V, IOUT = 150 mA, (see Figure 6)
4.85
250
150
5.00 5.15 V
450 900 mV
5.0 30 mV
5.0 50 mV
400 mA
180 210 °C
100 150 mA
RLOAD = 10 k to VOUT, VOUT 1.0 V
RLOAD = 5.1 k to VOUT, VOUT 1.0 V
RLOAD = 10 k to GND
RLOAD = 5.1 k to GND
VIN = 14 V, RDelay = 60 k, IOUT = 5.0 mA
VIN = 14 V, RDelay = 120 k, IOUT = 5.0 mA
4.50 4.65
0.2
0.4
VOUT 0.5
VOUT 1.0
2.0
VOUT 0.25
VOUT 0.5
3.0
6.0
4.80
0.4
0.8
4.0
V
V
V
ms
ms
WDI = 6.0 V
50% WDI falling edge to
50% WDI rising edge and
50% WDI rising edge to
50% WDI falling edge, (see Figure 5)
70 − − %VOUT
− − 30 %VOUT
100 mV
0.1 +10 mA
5.0 − − ms
WAKEUP OUTPUT (VIN = 14 V, IOUT = 5.0 mA)
Wakeup Period
See Figures 4 and 5, RDELAY = 60 k
See Figures 4 and 5, RDELAY = 120 k
Wakeup Duty Cycle Nominal
See Figure 3
18 25 32
50
45 50 55
RESET HIGH to
Wakeup Rising Delay Time
RDELAY = 60 k
50% RESET rising edge to
50% Wakeup edge, RDELAY = 120 k
(see Figures 3 and 4)
9.0 12.5 16
25
Wakeup Response to
Watchdog Input
50% WDI falling edge to
50% Wakeup falling edge
0.1 5.0
Wakeup Response to RESET
Output Low
Output High
50% RESET falling edge to
50% Wakeup falling edge.
VOUT = 5.0 V4.5 V
RLOAD = 10 k to VOUT, VOUT 1.0 V
RLOAD = 5.1 k to VOUT, VOUT 1.0 V
RRLLOOAADD
=
=
10 k to GND
5.1 k to GND
0.1 5.0
0.2
0.4
VVOOUUTT
0.5
1.0
VVOOUUTT−−00.2.55
0.4
0.8
DELAY
Output Voltage
IDELAY = 50 mA. Note 5
1.25
4. Measured when the output voltage has dropped 100 mV from the nominal value. (see Figure 12)
5. Current drain on the Delay pin directly affects the Delay Time, Wakeup Period, and the RESET to Wakeup Delay Time.
ms
ms
%
ms
ms
ms
ms
V
V
V
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NCV8508 전자부품, 판매, 대치품
NCV8508
TYPICAL PERFORMANCE CHARACTERISTICS
1.0
0.9
0.8 +125°C
0.7
0.6 +25°C
0.5
0.4 40°C
0.3
0.2
0.1
0.0 0 25 50 75 100 125 150 175 200 225 250
Output Current (mA)
Figure 12. Dropout Voltage vs Output Current
5.10
5.05
5.00
4.95
VIN = 14 V
IOUT = 5.0 mA
4.9040 25 10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Figure 13. Output Voltage vs Temperature
160
140
120
100
80
60
40
20 RL = 33 W
01.0 1.5 2.0
2.5 3.0 3.5 4.0
VIN (V)
4.5 5.0 5.5 6.0
Figure 14. Output Current vs Input Voltage
1000
100
10
1
0
Unstable Region
Stable Region
C = 1.0 mF, 10 mF
5 10 15 20 25 30 35 40
Output Current (mA)
Figure 15. Output Capacitor ESR
45
DEFINITION OF TERMS
Dropout Voltage: The inputoutput voltage differential at
which the circuit ceases to regulate against further reduction
in input voltage. Measured when the output voltage has
dropped 100 mV from the nominal value obtained at 14 V
input, dropout voltage is dependent upon load current and
junction temperature.
Input Voltage: The DC voltage applied to the input
terminals with respect to ground.
Line Regulation: The change in output voltage for a
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
Load Regulation: The change in output voltage for a
change in load current at constant chip temperature.
Quiescent Current: The part of the positive input current
that does not contribute to the positive load current. The
regulator ground lead current.
Ripple Rejection: The ratio of the peaktopeak input
ripple voltage to the peaktopeak output ripple voltage.
Current Limit: Peak current that can be delivered to the
output.
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