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PDF NCV8518B Data sheet ( Hoja de datos )
| Número de pieza | NCV8518B | |
| Descripción | Low Dropout Linear Regulator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCV8518B
Low Dropout Linear
Regulator with Watchdog,
Wake Up, RESET, and
ENABLE
The NCV8518B device is a precision micropower voltage regulator.
It has a fixed output voltage of 5.0 V and regulates within ±2%. It is
suitable for use in all automotive environments and contains all the
required functions to control a microprocessor. This device has low
dropout voltage and low quiescent current. It includes a watchdog
timer, adjustable reset, wake up and enable function. Also
encompassed in this device are safety features such as thermal
shutdown and short circuit protection. It is capable of handling up to
45 V transients.
Features
• Output Voltage of 5.0 V
• ±2% Output Voltage Tolerance
• Output Current up to 250 mA
• Micropower Compatible Control Functions:
− ENABLE
− Watchdog
− RESET
− Wake Up
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
• Low Dropout Voltage
• Low Quiescent Current of 100 mA
• Protection Features:
− Thermal Shutdown
− Short Circuit
• Low Sleep Mode Current less than 1.0 mA
• AEC Qualified
• PPAP Capable
• These are Pb−Free Devices
Applications
• Tire Pressure Monitor
• Battery Powered Consumer Electronics
http://onsemi.com
MARKING
DIAGRAMS
8
SOIC−8
8518B
8
EXPOSED PAD
AYWW
CASE 751AC
G
11
16
16
1
SOIC−16 LEAD
WIDE BODY
EXPOSED PAD
CASE 751AG
NCV8518B
AWLYYWWG
1
A
WL
YY, Y
WW
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping†
NCV8518BPDR2G SOIC−8* 2500 / Tape & Reel
NCV8518BPWR2G SOIC−16* 1000 / Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
*These packages are inherently Pb−Free.
© Semiconductor Components Industries, LLC, 2011
May, 2011 − Rev. 2
1
Publication Order Number:
NCV8518B/D
1 page  
NCV8518B
ELECTRICAL CHARACTERISTICS (−40°C ≤ TJ ≤ 150°C; 6.0 V ≤ VIN ≤ 28 V, 100 mA ≤ IOUT ≤ 150 mA, C2 = 1.0 mF, RDelay = 60 k;
unless otherwise specified.)
Characteristic
Symbol
Min
Typ Max Unit
Output
Output Voltage
VOUT
4.9
−2%
5.00 5.10 V
+2%
Dropout Voltage (VIN − VOUT, IOUT = 150 mA) (Note 4)
Load Regulation
(VIN = 13.5 V, 100 mA ≤ IOUT ≤ 150 mA)
Line Regulation
(6.0 V ≤ VIN ≤ 28 V, IOUT = 5.0 mA)
Current Limit
Thermal Shutdown (Guaranteed by Design)
Quiescent Current
(VIN = 13.5 V, IOUT = 100 mA, 150 mA, ENABLE = 2.0 V)
(ENABLE = 0 V, TA = +125°C)
RESET
Threshold Voltage
VDO
Regload
Regline
Ilim
TJmax
IQ
−
−
−
−
255
150
−
−
4.50
425 750 mV
5.0 30 mV
5.0 20 mV
400 − mA
180 210 °C
mA
100 150
− 1.0
4.65 4.75 V
Output Low
(RLOAD = 10 k to VOUT, VOUT = 1.0 V)
Output High (RLOAD = 10 k to GND)
Power On Reset Delay Time
(VIN = 13.5 V, RDelay = 60 k, IOUT = 5.0 mA)
(VIN = 13.5 V, RDelay = 120 k, IOUT = 5.0 mA)
VIN = 13.5 V, RDelay = 500 k, IOUT = 5.0 mA)
Reset Reaction Time
Input and ENABLE Transient Rejection (Note 6)
Watchdog Input
Threshold
Hysteresis (Guaranteed by design)
− − 0.2
−
tD
Trr
dV/dt
VOUT − 0.4 VOUT − 0.2
2.0 3.0
− 6.0
− 25
− 20
1.0 −
0.4
−
4.0
−
−
−
−
V
V
ms
ms
V/ms
WDIhigh
WDIhys
30
25
50 70 %VOUT
100 − mV
Input Current (WDI = 6.0 V)
Wake Up Rising Edge to WDI Falling Edge Delay
Wake Up
WDI
− − 0.1 2.0 mA
− 5.0 − − ms
ENABLE (Note 5)
Input Threshold
Logic Low
Logic High
Vth(EN)
−
2.0
V
− 0.8
−−
Input Current (ENABLE = 2.0 V)
− − 3.0 10 mA
4. Measured when the output voltage has dropped 2% from the nominal value.
5. If ENABLE is connected to VIN, a 20 kW resistor must be placed in series.
6. Slew rates in excess of this limit may cause RESET to change state.
http://onsemi.com
5
5 Page 
NCV8518B
VBAT
RDelay
120 k
C1*
0.1 mF
VIN VOUT
WDI
NCV8518B
Delay
RESET
WAKE UP
GND
ENABLE
C2
1.0 mF
OK Fault
VDD
I/O
RESET
I/O
OFF ON
*C1 required if regulator is located far from power supply filter. If extremely fast input voltage transients are expected
then appropriate input filter must be used. The filter can be composed of several capacitors in parallel.
Figure 17. Application Circuit
http://onsemi.com
11
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| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet NCV8518B.PDF ] | |
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