NCV8669
Very Low I
q
150 mA LDO
Regulator with Reset and
Early Warning
The NCV8669 is 150 mA LDO regulator with integrated reset and
early warning functions dedicated for microprocessor applications. Its
robustness allows NCV8669 to be used in severe automotive
environments. The NCV8669 utilizes precise 1 MW internal resistor
divider for Early Warning function which significantly reduces overall
application quiescent current and number of external components.
Very low quiescent current as low as 42
mA
typical for NCV8669
makes it suitable for applications permanently connected to battery
requiring very low quiescent current with or without load. The
NCV8669 contains protection functions as current limit and thermal
shutdown.
Features
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MARKING
DIAGRAM
14
14
1
SO−14
D SUFFIX
CASE 751A
y
z
xx
V8669yzxxG
AWLYWW
1
•
•
•
•
•
•
•
•
•
•
Output Voltage Options: 5 V
Output Voltage Accuracy:
±2
%
A
Output Current up to 150 mA
WL
Very Low Quiescent Current: Typ 42
mA
(Including Internal Early
Y
WW
Warning Resistor Divider Current)
G
Very Low Dropout Voltage
*See APPLICATION INFORMATION section.
Early Warning Threshold Accuracy:
$10%
Over Temperature
Range (Using R
SI_ext
External Resistor with
$1%
100 ppm/°C)
ORDERING INFORMATION
Microprocessor Compatible Control Functions:
See detailed ordering and shipping information in
♦
Reset with Adjustable Power−on Delay
dimensions section on page 13 of this data sheet.
♦
Early Warning
Wide input voltage operation range: up to 40 V
Typical Applications
Protection Features:
•
Body Control Module
♦
Current Limitation
♦
Thermal Shutdown
•
Instruments and Clusters
These are Pb−Free Devices
•
Occupant Protection and Comfort
•
Powertrain
V
in
SI
NCV8669yz**
DT
SO
*R
SI_ext
is optional
** z is 1, 2, 3, ... , n
RO
GND
I/O
RESET
V
out
V
out
C
out
2.2
mF
Microprocessor
V
DD
= Timing and Reset Threshold Option*
= Early Warning Option*
= Voltage Option
5.0 V (xx = 50)
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
the
V
BAT
C
in
0.1
mF
*
R
SI_ext
Figure 1. Application Circuit
©
Semiconductor Components Industries, LLC, 2011
July, 2011
−
Rev. 1
1
Publication Order Number:
NCV8669/D
NCV8669
Vin
Vout
R
SI1
Driver with
Current
Limit
RO
TIMING
CIRCUIT
and
RESET
OUTPUT
DRIVER
and
SENSE
OUTPUT
DRIVER
SO
R
SI2
Thermal
Shutdown
V
ref
SI
V ref
GND
*
DT
*Pull−down Resistor (typ 150 kW) active only in Reset State.
Figure 2. Simplified Block Diagram
NC
DT
GND
GND
GND
GND
RO
1
14
SI
Vin
GND
GND
GND
Vout
SO
SO−14
Figure 3. Pin Connections
(Top View)
PIN FUNCTION DESCRIPTION
Pin No.
SO−14
1
2
3, 4, 5, 6,
10, 11,
12
7
8
9
13
14
Pin Name
NC
DT
GND
Not Connected.
Reset Delay Time Select. Short to GND or connect to V
out
to select time.
Power Supply Ground.
Description
RO
SO
V
out
V
in
SI
Reset Output. 30 kW internal Pull−Up resistor connected to V
out
. RO goes Low when V
out
drops by more
than 7% (typ.) from its nominal value.
Early Warning Output. 30 kW internal Pull−Up resistor connected to V
out
. It can be used to provide early
warning of an impending reset condition. Leave open if not used.
Regulated Output Voltage. Connect 2.2
mF
capacitor with ESR < 100
W
to ground.
Positive Power Supply Input. Connect 0.1
mF
capacitor to ground.
Early Warning Adjust Input; connect R
SI_ext
against GND to adjust Input Voltage Early Warning
Threshold or leave unconnected. See Electrical Characteristics Table and Application Information sec-
tions for more information.
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2
NCV8669
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage DC (Note 1)
DC
Transient, t < 100 ms
Input Current
Output Voltage (Note 2)
Output Current
Sense Input Voltage DC
DC
Transient, t < 100 ms
Sense Input Current Range
DT (Reset Delay Time Select) Voltage
DT (Reset Delay Time Select) Current
Reset Output Voltage
Reset Output Current
Sense Output Voltage
Sense Output Current
Junction Temperature
Storage Temperature
Symbol
V
in
Min
−0.3
−
−5
−0.3
−3
−0.3
−
−1
−0.3
−1
−0.3
−3
−0.3
−3
−40
−55
Max
40
45
−
5.5
Current Limited
40
45
1
5.5
1
5.5
3
5.5
3
150
150
Unit
V
I
in
V
out
I
out
V
SI
mA
V
mA
V
I
SI
V
DT
I
DT
V
RO
I
RO
V
SO
I
SO
T
J
T
STG
mA
V
mA
V
mA
V
mA
°C
°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. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
2. 5.5 or (V
in
+ 0.3 V), whichever is lower
ESD CAPABILITY
(Note 3)
Rating
ESD Capability, Human Body Model
ESD Capability, Machine Model
ESD Capability, Charged Device Model
Symbol
ESD
HBM
ESD
MM
ESD
CDM
Min
−2
−200
−1
Max
2
200
1
Unit
kV
V
kV
3. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (JS−001−2010)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
ESD Charged Device Model tested per AEC−Q100−011 (EIA/JESD22−C101)
LEAD SOLDERING TEMPERATURE AND MSL
(Note 4)
Rating
Moisture Sensitivity Level
Lead Temperature Soldering
Reflow (SMD Styles Only), Pb−Free Versions
Symbol
MSL
T
SLD
−
Min
1
265 peak
Max
Unit
−
°C
4. For more information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D
THERMAL CHARACTERISTICS
(Note 5)
Rating
Thermal Characteristics
Thermal Resistance, Junction−to−Air (Note 6)
Thermal Reference, Junction−to−Lead (Note 6)
Symbol
R
qJA
R
ψJL
Value
94
18
Unit
°C/W
5. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
6. Values based on copper area of 645 mm
2
(or 1 in
2
) of 1 oz copper thickness and FR4 PCB substrate.
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NCV8669
OPERATING RANGES
(Note 7)
Rating
Input Voltage (Note 7)
Junction Temperature
Symbol
V
in
T
J
Min
5.5
−40
Max
40
150
Unit
V
°C
7. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
8. Minimum V
in
= 5.5 V or (V
out
+ V
DO
), whichever is higher.
ELECTRICAL CHARACTERISTICS
V
in
= 13.2 V, V
DT
= GND, R
SI_ext
not used, C
in
= 0.1
mF,
C
out
= 2.2
mF,
for typical values T
J
=
25°C, for min/max values T
J
=
−40°C
to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter
REGULATOR OUTPUT
Output Voltage (Accuracy %)
V
in
= 5.6 V to 40 V, I
out
= 0.1 mA to 100 mA
V
in
= 5.8 V to 16 V, I
out
= 0.1 mA to 150 mA
T
J
=
−40
°C
to 125
°C
V
in
= 5.8 V to 28 V, I
out
= 0 mA to 150 mA
V
in
= 6 V to 28 V, I
out
= 5 mA
I
out
= 0.1 mA to 150 mA
I
out
= 100 mA
I
out
= 150 mA
I
out
= 0 mA to 150 mA
V
out
4.9
4.9
(−2%)
4.9
(−2%)
−20
−40
−
−
2.2
0.01
5.0
5.0
5.1
5.1
(+2%)
5.1
(+2%)
20
40
450
600
100
100
V
Test Conditions
Symbol
Min
Typ
Max
Unit
Output Voltage (Accuracy %)
V
out
5.0
0
10
225
300
−
−
V
Line Regulation
Load Regulation
Dropout Voltage (Note 11)
Reg
line
Reg
load
V
DO
mV
mV
mV
Output Capacitor for Stability (Note 12)
C
out
ESR
mF
W
QUIESCENT CURRENT
Quiescent Current, I
q
= I
in
−
I
out
(Note 13)
I
out
= 0.1 mA, T
J
= 25°C
I
out
= 0.1 mA to 150 mA, T
J
≤
125°C
I
q
−
−
42
49
50
mA
CURRENT LIMIT PROTECTION
Current Limit
Short Circuit Current Limit
PSRR
Power Supply Ripple Rejection (Note 12)
DT (Reset Delay Time Select)
DT Threshold Voltage
Logic Low
Logic High
DT Input Current
RESET OUTPUT RO
Output Voltage Reset Threshold (Note 14) V
out
decreasing
V
in
> 5.5 V
Reset Hysteresis
Maximum Reset Sink Current
V
out
= 4.5 V, V
RO
= 0.25 V
V
RT
V
RH
I
ROmax
90
−
1.75
93
2.0
−
96
−
−
%V
out
%V
out
mA
V
DT
= 5 V
V
th(DT)
−
2
−
−
−
−
0.8
−
1
V
f = 100 Hz, 0.5 V
pp
PSRR
−
60
−
dB
V
out
= 0.96 x V
out_nom
V
out
= 0 V
I
LIM
I
SC
205
205
−
−
525
525
mA
mA
I
DT
mA
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 T
A
[T
J
. 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 V
in
= 13.2 V.
12. Values based on design and/or characterization.
13. I
q
for Preset EW Threshold Options is measured when R
SI_ext
is not used. For typical values of I
q
vs R
SI_ext
see Figure 23.
14. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options
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NCV8669
ELECTRICAL CHARACTERISTICS
V
in
= 13.2 V, V
DT
= GND, R
SI_ext
not used, C
in
= 0.1
mF,
C
out
= 2.2
mF,
for typical values T
J
=
25°C, for min/max values T
J
=
−40°C
to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter
RESET OUTPUT RO
Reset Output Low Voltage
Reset Output High Voltage
Integrated Reset Pull Up Resistor
Reset Delay Time (Note 14)
V
out
> 1 V, I
RO
< 200
mA
V
ROL
V
ROH
R
RO
t
RD
−
4.5
15
12.8
25.6
16
0.15
−
30
16
32
25
0.25
−
50
19.2
38.4
38
V
V
kW
ms
Test Conditions
Symbol
Min
Typ
Max
Unit
DT connected to GND
DT connected to V
out
Reset Reaction Time (see Figure 24)
EARLY WARNING (SI and SO)
Early Warning Input Voltage Threshold
(Preset EW Threshold Values)
NCV8669y2
High
Low
Integrated Sense Output Pull Up Resistor
Sense Output Low Voltage
Sense Output High Voltage
Maximum Sense Output Sink Current
V
SO
= 0.25 V
V
in
< V
in_EW(th)_Low_Min
V
out
= 4.5 V
V
in
< V
in_EW(th)_Low_Min
, I
SO
< 200
mA,
V
out
> 1 V
R
SI1
= 480 kW, R
SI2
= 520 kW
(internal resistor divider values, see )
R
SI_ext
= 150 kW
(±1%, ±100 ppm/°C)
(external resistor value, see Figure 22)
t
RR
V
in_EW(th)
ms
V
5.67
5.30
6.30
5.89
30
0.15
−
6.92
6.47
50
0.25
−
kW
V
V
mA
1.75
−
−
R
SO
V
SOL
V
SOH
I
SOmax
15
−
4.5
THERMAL SHUTDOWN
Thermal Shutdown Temperature (Note 12)
Thermal Shutdown Hysteresis (Note 12)
T
SD
T
SH
150
−
175
25
195
−
°C
°C
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 T
A
[T
J
. 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 V
in
= 13.2 V.
12. Values based on design and/or characterization.
13. I
q
for Preset EW Threshold Options is measured when R
SI_ext
is not used. For typical values of I
q
vs R
SI_ext
see Figure 23.
14. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options
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