Semiconductor Components Industries, LLC, 2004
March, 2004 - Rev. 20
1
Publication Order Number:
NCV8509/D
NCV8509 Series
Sequenced Linear
Dual-Voltage Regulator
The NCV8509 Series are dual voltage regulators whose output
voltages power up in such a manner as to protect the integrity of
modern day microcontroller I/O and ESD input structures. Newer
generation microcontrollers require two power supplies. One voltage
is used for powering the core, while the other powers the I/O.
Features
Power-Up Sequence
Output Voltage Options:
V
OUT1
5 V (
2%) 115 mA, V
OUT2
2.6 V (2%) 100 mA
V
OUT1
5 V (
2%) 115 mA, V
OUT2
2.5 V (2%) 100 mA
V
OUT1
3.3 V (
2%) 115 mA, V
OUT2
1.8 V (2%) 100 mA
Low 175
mA Quiescent Current
Power Shunt
Programmable RESET Time
Dual Drive RESET Valid
Programmable SLEW Rate Control
Thermal Shutdown
16 Lead SOW Exposed Pad
NCV Prefix, for Automotive and Other Applications Requiring Site
and Change Control
Typical Applications
Automotive Powertrain
Telematics
V
IN1
V
IN2
GND
V
OUT1
V
OUT2
SLEW
RESET
Delay
Microprocessor
NCV8509
V
BAT
Figure 1. Application Diagram
R
EX
138
C
SLEW
33 nF
C
IN1
10
F
C
IN2
0.1
F
C
VOUT1
10
F
C
VOUT2
10
F
C
Delay
33 nF
R
RESET
10 k
MRA4004T3
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PIN CONNECTIONS
MARKING DIAGRAM
xx
= Voltage Ratings as Indicated Below:
26 = 5 V/2.6 V
25 = 5 V/2.5 V
18 = 3.3 V/1.8 V
A
= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
SOIC 16 LEAD
WIDE BODY
EXPOSED PAD
PDW SUFFIX
CASE 751R
1
16
1
16
NC
NC
1
16
V
OUT2
NC
NC
RESET
V
IN2
NC
V
IN1
NC
NC
GND
V
OUT1
Delay
NC
SLEW
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
ORDERING INFORMATION
NCV8509xx
AWLYYWW
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NCV8509 Series
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2
MAXIMUM RATINGS*
Rating
Value
Unit
V
IN1
(dc)
-0.3 to 50
V
V
IN1
Peak Transient Voltage
50
V
V
IN2
(dc)
50
V
V
IN2
(Current out of pin)
10
mA
Operating Voltage
50
V
Input Voltage Range (SLEW, RESET, Delay)
-0.3 to 10
V
V
OUT1
10
V
V
OUT2
10
V
ElectrosElectrostatic Discharge (Human Body Model)
(Machine Model)
4.0
400
kV
V
Package Thermal Resistance, SOW-16 E Pad:
Junction-to-Case, R
JC
Junction-to-Ambient, R
JA
16
57
C/W
C/W
Lead Temperature Soldering:
Reflow: (SMD styles only) (Note 1)
240 peak (Note 2)
C
*The maximum package power dissipation must be observed.
1. 60 second maximum above 183
C.
2. -5
C/+0
C allowable conditions.
ELECTRICAL CHARACTERISTICS
(6.0 V < V
IN1
< 18 V, I
VOUT1
= 5.0 mA, I
VOUT2
= 5.0 mA, -40
C < T
J
< 125
C,
C
VOUT1
= C
VOUT2
= 10
m
F; unless otherwise noted.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
V
OUT1
Output Voltage
5 V Option
3.3 V Option
1.0 mA < I
VOUT1
< 100 mA
1.0 mA < I
VOUT1
< 100 mA
4.9
3.234
5.0
3.3
5.1
3.366
V
V
Dropout Voltage (V
IN1
- V
OUT1
)
I
OUT
= 100 mA
I
OUT
= 100
A
-
-
400
100
600
200
mV
mV
Load Regulation
1.0 mA < I
VOUT1
< 100 mA
-
10
50
mV
Line Regulation
6.0 V < V
IN1
< 18 V
-
10
50
mV
Current Limit
V
OUT1
= V
OUT1
(typ) - 500 mV
V
OUT1
= 0 V
115
-
305
105
610
300
mA
mA
V
OUT2
Output Voltage
2.6 V Option
2.5 V Option
1.8 V Option
1.0 mA < I
VOUT2
< 100 mA
1.0 mA < I
VOUT2
< 100 mA
1.0 mA < I
VOUT2
< 100 mA
2.548
2.450
1.764
2.6
2.5
1.8
2.652
2.550
1.836
V
V
V
Load Regulation
1.0 mA < I
VOUT2
< 100 mA
-
5.0
50
mV
Line Regulation
6.0 V < V
IN1
= V
IN2
< 18 V
-
10
50
mV
Current Limit
V
OUT2
= V
OUT2
(typ) - 500 mV
V
OUT2
= 0 V
105
-
305
105
610
300
mA
mA
General
Quiescent Current
I
OUT1
= I
OUT2
= 100
A, V
IN1
= 12 V
I
OUT1
= I
OUT2
= 50 mA, V
IN1
= 14 V
-
-
75
5.0
175
10
A
mA
Thermal Shutdown (Note 3)
(Guaranteed by Design)
150
180
210
C
3. Both outputs will turn off.
NCV8509 Series
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3
ELECTRICAL CHARACTERISTICS
(continued)
(6.0 V < V
IN1
< 18 V, I
VOUT1
= 5.0 mA, I
VOUT2
= 5.0 mA, -40
C < T
J
< 125
C,
C
VOUT1
= C
VOUT2
= 10
m
F; unless otherwise noted.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
SLEW
SLEW Charging Current
SLEW = 1.0 V
4.0
6.0
8.0
A
V
OUT1
SLEW Rate (Note 4)
5 V Option
3.3 V Option
C
SLEW
= 33 nF
-
-
710
469
-
-
V/s
V/s
V
OUT2
SLEW Rate
2.6 V Option
2.5 V Option
1.8 V Option
C
SLEW
= 33 nF
-
-
-
370
355
256
-
-
-
V/s
V/s
V/s
SLEW Control Threshold
(See Figure 41)
1.5
1.8
2.1
V
RESET
RESET Threshold Increasing
(Note 5)
-
94.5
96.5
98.5
%
RESET Threshold Decreasing
5 V Option
3.3 V Option
2.6 V Option
2.5 V Option
1.8 V Option
-
4.5
2.97
2.34
2.25
1.62
4.73
3.12
2.46
2.36
1.70
0.965
V
OUT
0.965
V
OUT
0.965
V
OUT
0.965
V
OUT
0.965
V
OUT
V
V
V
V
V
RESET Output Low
I
RESET
= 1.0 mA
-
0.1
0.4
V
RESET Output Peak
Power Down (See Figure 29)
-
0.6
1.0
V
RESET Threshold Hysteresis
5 V Option
3.3 V Option
2.6 V Option
2.5 V Option
1.8 V Option
-
50
33
26
25
18
100
66
52
50
36
150
99
78
75
54
mV
mV
mV
mV
mV
Delay
Delay Switching Threshold
-
1.125
1.5
1.875
V
Delay Charge Current
Delay = 1.0 V
4.0
6.0
8.0
A
Delay Saturation Voltage
V
OUT1
Out of Regulation
-
-
0.1
V
Delay Discharge Current
Delay = 5.0 V V
OUT1
out of Regulation
10
-
-
mA
Output Tracking
Delta 1 [V
OUT1
- V
OUT2
]
5 V Option
3.3 V Option
C
OUT1
= C
OUT2
, I
OUT1
= I
OUT2
C
OUT1
= C
OUT2
, I
OUT1
= I
OUT2
-
-
-
-
3.2
2.8
V
V
Delta 2 [V
OUT2
- V
OUT1
]
C
OUT1
= C
OUT2
, I
OUT1
= I
OUT2
-
-
100
mV
Power Shunt
Shunt Voltage 1 (V
IN2
)
V
IN1
= 6.0 V, I
OUT2
= 100 mA, No R
EX
3.3
-
4.6
V
Shunt Voltage 2 (V
IN2
)
V
IN1
= 12 V, 1.0 mA < I
OUT2
< 100 mA, No R
EX
3.25
4.5
5.75
V
4. Not a tested parameter.
5. RESET signal sensitive to V
OUT1
and V
OUT2
.
NCV8509 Series
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4
PIN DESCRIPTION
Pin No.
Symbol
Description
1
SLEW
Control for output rise time during power up. Requires capacitor to ground.
2
Delay
Timing capacitor for RESET function.
3
GND
Ground.
4, 5, 7-9, 11, 14, 16
NC
No connection.
6
RESET
Active reset (accurate to V
OUT
> 1.0 V).
10
V
OUT2
100 mA output (
2% output voltage) for powering microprocessor core.
12
V
IN2
Input voltage for V
OUT2
.
13
V
IN1
Input voltage for V
OUT1
, and internal circuitry.
15
V
OUT1
100 mA output (
2% output voltage) for powering microprocessor I/O.
V
OUT1
V
IN1
+
+
+
-
V
IN1
V
IN2
C
IN2
C
IN1
Power Shunt
Bandgap
& Bias
GND
RESET
V
OUT1
-
+
RESET Comp
V
BG
V
REF
C
Delay
Delay
Delay
Discharge
Latch
+
-
-
+
SLEW
C
SLEW
V
REF
V
OUT1
C
OUT1
V
BG
V
REF
V
IN1
Error Amp
Thermal
Shutdown
+
+
+
-
Error Amp
V
OUT2
C
OUT2
V
IN2
V
REF
Start-Up
Current
Figure 2. Block Diagram
SLEW
Control
R
EX
V
REF
Start-Up
Current
NCV8509 Series
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5
TYPICAL PERFORMANCE CHARACTERISTICS
-40
V
oltage
(V)
2.55
Temperature (
C)
2.59
2.60
2.61
2.62
2.63
2.64
2.65
-20
2.57
2.58
2.56
0
20
40
60
80
100
120
140
Figure 3. 2.6 V Output Voltage
-40
V
oltage
(V)
3.23
Temperature (
C)
3.31
3.32
3.33
3.34
3.35
3.36
3.37
-20
3.29
3.30
3.28
0
20
40
60
80
100
120
140
3.27
3.25
3.26
3.24
Figure 4. 3.3 V Output Voltage
-40
V
oltage
(V)
2.45
Temperature (
C)
2.49
2.50
2.51
2.52
2.53
2.54
2.55
-20
2.47
2.48
2.46
0
20
40
60
80
100
120
140
Figure 5. 2.5 V Output Voltage
-40
V
oltage
(V)
1.76
Temperature (
C)
1.81
1.82
1.83
1.84
-20
1.79
1.80
1.78
0
20
40
60
80
100
120
140
1.77
Figure 6. 1.8 V Output Voltage
-40
V
oltage
(V)
4.90
Temperature (
C)
4.98
5.00
5.02
5.04
5.06
5.08
5.10
-20
4.94
4.96
4.92
0
20
40
60
80
100
120
140
Figure 7. 5.0 V Output Voltage
I
VOUT1
= 5 mA
I
VOUT2
= 5 mA
I
VOUT1
= 5 mA
I
VOUT2
= 5 mA
I
VOUT1
= 5 mA
I
VOUT2
= 5 mA
I
VOUT1
= 5 mA
I
VOUT2
= 5 mA
I
VOUT1
= 5 mA
I
VOUT2
= 5 mA
1.8 V
0
V
IN2
(VOL
TS)
0
V
IN1
(VOLTS)
2
4
6
8
10
12
14
16
Figure 8. V
IN2
versus V
IN1
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
R
ex
=
2.5 V
2.6 V
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