NCV47411
3.3 V to 20 V Adjustable
Dual LDO with Adjustable
Current Limit and 3.3 V
Logic Compatible Enable
Inputs
The NCV47411 is a dual integrated low dropout regulator with
100 mA per channel designed for use in harsh automotive
environments. It includes wide operating temperature and input
voltage ranges. The device is offered with adjustable voltage version
available in 3% output voltage accuracy. It has a high peak input
voltage tolerance and reverse input voltage protection. It also provides
overcurrent protection, overtemperature protection and enable for
control of the state of the output voltage of each channel. The
integrated current sense feature provides diagnosis and system
protection functionality. The current limit of the device is adjustable
by resistor connected to CSO pin for each channel. CSO pin output
current creates voltage drop across CSO resistor which is proportional
to output current of each channel.
Features
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MARKING
DIAGRAM
14
14
1
1
NCV47411
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
TSSOP−14 EP
CASE 948AW
NCV4
7411
ALYWG
G
•
•
•
•
Two Adjustable Outputs: (from 3.3 V to 20 V)
±3%
Output Voltage
Enable Inputs (3.3 V Logic Compatible Thresholds)
Adjustable Current Limit up to 150 mA
Protection Features:
♦
Current Limitation
♦
Thermal Shutdown
♦
Reverse Input Voltage
•
This is a Pb−Free Device
Typical Applications
(Note: Microdot may be in either location)
PIN CONNECTIONS
Top View
1
V
in
CSO1
EN1
GND
EN2
CSO2
V
in
14
V
out1
ADJ1
NC
NC
NC
ADJ2
V
out2
EPAD
•
•
•
•
Audio and Infotainment System
Instrument Cluster
Navigation
Satellite Radio
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
©
Semiconductor Components Industries, LLC, 2013
1
December, 2013 − Rev. 1
Publication Order Number:
NCV47411/D
NCV47411
V
in
**
C
in
1
mF
EN1
V
out1
C
b1
*
ADJ1
CSO1
C
CSO1
1
mF
R
CSO1
R
11
C
out1
10
mF
R
12
NCV47411
V
out2
C
b2
*
ADJ2
EN2
GND
CSO2
C
CSO2
1
mF
R
CSO2
R
21
R
22
C
out2
10
mF
C
b1
*, C
b2
* − Optional, see Regulator Stability Considerations section
** − Both V
in
pins must be connected together on PCB
Figure 1. Application Schematic
(See Application Section for More Datails)
V
in
VOLTAGE
REFERENCE
EN1
ENABLE
SATURATION
PROTECTION
THERMAL
SHUTDOWN
SP1
TSD1
SP1
V
REF 1
1.275 V
V
REF 1
V
REF 2
V
out1
PASS DEVICE 1
AND
CURRENT MIRROR
I
CSO1
= I
out1
/ 50
+
−
+
−
TSD1
V
REF 2
2.55 V
CSO1
GND
ADJ1
V
in
I
CSO2
= I
out2
/ 50
V
out2
EN2
ENABLE
SATURATION
PROTECTION
THERMAL
SHUTDOWN
SP2
TSD2
PASS DEVICE 2
AND
CURRENT MIRROR
+
V
REF 2
2.55 V
−
SP2
CSO2
+
−
TSD2
V
REF 1
1.275 V
ADJ2
Figure 2. Simplified Block Diagram
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NCV47411
Table 1. PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EPAD
Pin Name
V
in
CSO1
EN1
GND
EN2
CSO2
V
in
V
out2
ADJ2
NC
NC
NC
ADJ1
V
out1
EPAD
Description
Power Supply Input. (All V
in
pins must be connected on PCB)
Current Sense Output 1, Current Limit setting and Output Current value information. See Application
Section for more details.
Enable Input 1; low level disables the Channel 1.
Power Supply Ground.
Enable Input 2; low level disables the Channel 2.
Current Sense Output 2, Current Limit setting and Output Current value information. See Application
Section for more details.
Power Supply Input. (All V
in
pins must be connected on PCB)
Regulated Output Voltage 2.
Adjustable Voltage Setting Input 2. See Application Section for more details.
Not Connected. (Not internally bonded)
Not Connected. (Not internally bonded)
Not Connected. (Not internally bonded)
Adjustable Voltage Setting Input 1. See Application Section for more details.
Regulated Output Voltage 1.
Exposed Pad is connected to Ground. Connect to GND plane on PCB.
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NCV47411
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage DC
Enable Input Voltage
ADJ Input Voltage
CSO Voltage
Output Voltage
Junction Temperature
Storage Temperature
Symbol
V
in
V
EN1,2
V
ADJ1,2
V
CSO1,2
V
out1,2
T
J
T
STG
Min
−42
−42
−0.3
−0.3
−1
−40
−55
Max
45
45
10
7
40
150
150
Unit
V
V
V
V
V
°C
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Table 3. ESD CAPABILITY
(Note 1)
Rating
ESD Capability, Human Body Model
ESD Capability, Machine Model
Symbol
ESD
HBM
ESD
MM
Min
−2
−200
Max
2
200
Unit
kV
V
1. This device series incorporates ESD protection and is tested by the following methods:
a) ESD Human Body Model tested per AEC−Q100−002 (JS−001−2010)
b) ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Table 4. LEAD SOLDERING TEMPERATURE AND MSL
(Note 2)
Rating
Moisture Sensitivity Level
Lead Temperature Soldering
Reflow (SMD Styles Only), Pb−Free Versions
Symbol
MSL
T
SLD
−
265 peak
Min
1
Max
1
Unit
−
°C
2. For more information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D
Table 5. THERMAL CHARACTERISTICS
(Note 3)
Rating
Thermal Characteristics (single layer PCB)
Thermal Resistance, Junction−to−Air (Note 4)
Thermal Reference, Junction−to−Lead (Note 4)
Thermal Characteristics (4 layers PCB)
Thermal Resistance, Junction−to−Air (Note 4)
Thermal Reference, Junction−to−Lead (Note 4)
Symbol
R
θJA
R
ψJL
R
θJA
R
ψJL
Value
52
9.5
°C/W
28.5
8.4
Unit
°C/W
3. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
4. Values based on copper area of 645 mm
2
(or 1 in
2
) of 1 oz copper thickness and FR4 PCB substrate, assuming equal power dissipation
of both channels. Single layer − according to JEDEC51.3, 4 layers − according to JEDEC51.7
Table 6. RECOMMENDED OPERATING RANGES
Rating
Input Voltage (Note 5)
Nominal Output Voltages
Output Current Limit (Note 6)
Junction Temperature
Current Sense Output (CSO) Capacitor
Symbol
V
in
V
out_nom1,2
I
LIM1,2
T
J
C
CSO1,2
Min
4.4
3.3
10
−40
1.0
Max
40
20
150
150
4.7
Unit
V
V
mA
°C
mF
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
5. Minimum V
in
= 4.4 V or (V
out_nom1,2
+ 0.5 V), whichever is higher.
6. Corresponding R
CSO1,2
is in range from 12.75 kW
down
to 850
W.
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NCV47411
Table 7. ELECTRICAL CHARACTERISTICS
V
in
= 13.5 V, V
EN1,2
= 3.3 V, R
CSO1,2
= 0
W,
C
CSO1,2
= 1
mF,
C
in
= 1
mF,
C
out1,2
= 10
mF,
ESR = 1.5
W.
Min and Max values are valid for
temperature range −40°C
≤
T
J
≤
+150°C unless noted otherwise and are guaranteed by test, design or statistical correlation. Typical
values are referenced to T
J
= 25°C (Note 7)
Parameter
REGULATOR OUTPUTS
Output Voltage (Accuracy %)
(Note 8)
Line Regulation
(Note 8)
Load Regulation
Dropout Voltage
(Note 9)
V
in
= V
in_min
to 40 V
I
out1,2
= 5 mA to 100 mA
V
in
= V
in_min
to (V
out_nom1,2
+ 20 V)
I
out1,2
= 5 mA
V
in
= (V
out_nom1,2
+ 8.5 V)
I
out1,2
= 5 mA to 100 mA
V
out_nom1,2
= 5 V, I
out1,2
= 100 mA
V
DO1,2
= V
in
− V
out1,2
V
out1,2
Reg
line1,2
Reg
load1,2
V
DO1,2
−3
−
−
−
−
0.05
0.05
250
+3
1.0
1.4
550
%
%
%
mV
Test Conditions
Symbol
Min
Typ
Max
Unit
DISABLE AND QUIESCENT CURRENTS
Disable Current
Quiescent Current,
I
q
= I
in
− (I
out1
+ I
out2
)
Quiescent Current,
I
q
= I
in
− (I
out1
+ I
out2
)
CURRENT LIMIT PROTECTION
Current Limit
PSRR & NOISE
Power Supply Ripple Rejection
Output Noise Voltage
ENABLE
Enable Input Threshold Voltage
Logic Low (OFF)
Logic High (ON)
Enable Input Current
Turn On Time
from Enable ON to 90% of V
out
OUTPUT CURRENT SENSE
CSO Voltage Level at Current Limit
V
out1,2
= 0.9 x V
out_nom1,2
,
(V
out_nom1,2
= 5 V)
R
CSO1,2
= 2.55 kW
C
CSO1,2
= 4.7
mF,
R
CSO1,2
= 2.55 kW
I
out1,2
pulse from 10 mA to 100 mA,
tr = 1
ms
V
CSO1,2
= 2 V, I
out1,2
= 10 mA to 100 mA
(V
out_nom1,2
= 5 V)
V
CSO1,2
= 0 V, I
out1,2
= 0 mA,
(V
out_nom1,2
= 5 V)
V
CSO_Ilim1.2
2.346
(−8 %)
−
2.55
2.754
(+8 %)
3.3
V
V
out1,2
≤
0.1 V
V
out1,2
≥
0.9 x V
out_nom1,2
V
EN1,2
= 3.3 V
I
out1,2
= 100 mA, C
b1,2
= 10 nF,
R
n1
= 82 kW, R
n2
= 27 kW
V
th(EN1,2)
0.99
−
I
EN1,2
t
on
−
1.6
−
2
1.8
1.9
9
−
2.31
20
mA
ms
V
f = 100 Hz, 0.5 V
p−p1,2
f = 10 Hz to 100 kHz, C
b1,2
= 10 nF
PSRR
1,2
V
n1,2
−
−
75
130
−
−
dB
mV
rms
V
out1,2 =
0.9 x V
out_nom1,2
V
in
= (V
out_nom1,2
+ 8.5 V)
I
LIM1,2
150
−
−
mA
V
EN1,2
= 0 V
I
out1,2
= 500
mA,
V
in
= (V
out_nom1,2
+ 8.5 V)
I
out1,2
= 100 mA,
V
in
= (V
out_nom1,2
+ 8.5 V)
I
DIS
I
q
I
q
−
−
−
0.07
235
15
10
370
50
mA
mA
mA
CSO Transient Voltage Level
V
CSO1,2
−
V
Output Current to CSO Current Ratio
(Note 10)
CSO Current at no Load Current
THERMAL SHUTDOWN
Thermal Shutdown Temperature
I
out1,2
/I
CSO1,2
I
CSO_off1,2
−
(−10 %)
−
50
−
−
(+10 %)
10
−
mA
I
out1,2
= 2.5 mA
T
SD1,2
150
−
195
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
7. 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.
8. Minimum input voltage V
in_min
is 4.4 V or (V
out_nom1,2
+ 1 V) whichever is higher
9. Measured when the output voltage V
out1,2
has dropped by 2% of V
out1,2
from the nominal value obtained at V
in
= V
out_nom1,2
+ 8.5 V.
10. Not guaranteed in dropout.
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