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NCV8508D2T50G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 27
1 Publication Order Number:
NCV8508/D
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
• I
OUT
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 SO−16L Package
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
• AEC Qualified
• PPAP Capable
• This is a Pb−Free Device*
Figure 1. Application Circuit
C1*
V
OUT
GND
V
IN
WDI
NCV8508
1.0 mF
I/O
I/O
RESET
RESET
0.1 mF
C2
Microprocessor
Delay
R
Delay
60 k
V
BAT
*C1 required if regulator is located far from power supply filter.
V
DD
WAKEUP
MRA4004T3
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
SO−16L
DW SUFFIX
CASE 751G
1
16
See detailed ordering and shipping information in the package
dimensions section on page 23 of this data sheet.
ORDERING INFORMATION
MARKING
DIAGRAMS
1
NCV85085
AWLYYWWG
16
A = Assembly Location
WL = Wafer Lot
YY, Y = Year
WW = Work Week
G or G = Pb−Free Package
http://onsemi.com
D
2
PAK−7
DPS SUFFIX
CASE 936AB
NCV85085
AWLYWWG
1
SO−8 EP
PD SUFFIX
CASE 751AC
1
8
1
8
V8508
AYWWG
G
NCV8508
http://onsemi.com
2
V
IN
V
OUT
1
16
NCSense
WDINC
GNDGND
GNDGND
WakeupNC
RESET
NC
DelayNC
PIN CONNECTIONS
1
SO−16L D
2
PAK−7
Tab = GND
Lead 1. V
OUT
2. V
IN
3. WDI
4. GND
5. Wakeup
6. RESET
7. Delay
V
OUT
Sense
GND
Delay
V
IN
WDI
Wakeup
RESET
1
8
SO−8 EP
PACKAGE PIN DESCRIPTION
PACKAGE PIN #
PIN SYMBOL FUNCTION
D
2
PAK−7 SO−16L SO−8 EP
1 8 4 V
OUT
Regulated output voltage ± 3.0%.
2 9 5 V
IN
Supply Voltage to the IC.
3 11 6 WDI CMOS compatible input lead. The Watchdog function
monitors the falling edge of the incoming signal.
4 4, 5, 12, 13 2 GND Ground connection.
5 14 7 Wakeup CMOS compatible output consisting of a continuously
generated signal used to “wake up” the microprocessor
from sleep mode.
6 15 8 RESET CMOS compatible output lead RESET goes low whenever
V
OUT
drops by more than 7.0% from nominal, or during the
absence of a correct Watchdog signal.
7 16 1 Delay Buffered bandgap voltage used to create timing current for
RESET
and Wakeup from R
Delay.
− 1−3, 6, 10 − NC No Connection.
− 7 3 Sense Kelvin connection which allows remote sensing of the
output voltage for improved regulation. Connect to V
OUT
if
remote sensing is not required.
− − EPAD EPAD Connect to Ground potential or leave unconnected.
NCV8508
http://onsemi.com
3
−
+
+
−
Wakeup
Circuit
Timing
Circuit
Falling
Edge
Detect
Watchdog
Circuit
Thermal
Shutdown
Current
Limit
Charge
Pump
Bandgap
Reference
V
IN
RESET
V
OUT
Wakeup
WDI
Delay
Figure 2. Block Diagram
−
+
1.25 V
11 V
Internally
connected
on 7 lead
D
2
PAK
Sense
MAXIMUM RATINGS
Rating Value Unit
Input Voltage, V
IN
(DC) −0.3 to 45 V
Peak Transient Voltage (46 V Load Dump @ V
IN
= 14 V) 60 V
Output Voltage, V
OUT
−0.3 to 18 V
ESD Susceptibility:
Human Body Model
Machine Model
2.0
150
kV
V
Logic Inputs/Outputs (RESET, WDI, Wakeup) −0.3 to +7.0 V
Operating Junction Temperature, T
J
−40 to150 °C
Storage Temperature Range, T
S
−55 to +150 °C
Peak Reflow Soldering Temperature: Reflow: (Note 1) 240 Peak
260 Peak (Pb−Free)
(Note 3)
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. 60 second maximum above 183°C.
2. Depending on thermal properties of substrate R
q
JA
= R
q
JC
+ R
q
JCA
.
3. −5°C/+0°C allowable conditions, applies to both Pb and Pb−Free devices.
THERMAL CHARACTERISTICS
See Package Thermal Data Section (Page 10)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

NCV8508D2T50G

Mfr. #:
Buy NCV8508D2T50G
Manufacturer:
ON Semiconductor
Description:
IC REG LINEAR 5V 250MA D2PAK-7
Lifecycle:
New from this manufacturer.
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