NCP380, NCV380
Fixed/Adjustable Current‐
Limiting Power‐Distribution
Switches
The NCP380 is a high side power-distribution switch designed for
applications where heavy capacitive loads and short-circuits are likely
to be encountered. The device includes an integrated 55 mW (DFN
package), P-channel MOSFET. The device limits the output current to
a desired level by switching into a constant-current regulation mode
when the output load exceeds the current-limit threshold or a short is
present. The current-limit threshold is either user adjustable between
100 mA and 2.1 A via an external resistor or internally fixed. The
power-switch rise and fall times are controlled to minimize current
ringing during switching.
An internal reverse-voltage detection comparator disables the
power-switch if the output voltage is higher than the input voltage to
protect devices on the input side of the switch.
The FLAG logic output asserts low during over current,
reverse-voltage or over temperature conditions. The switch is
controlled by a logic enable input active high or low.
Features
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UDFN6
CASE 517AB
TSOP−5
CASE 483
TSOP−6
CASE 318G
MARKING DIAGRAMS
1
6
2 XX M 5
3
4
UDFN6
5
XXXAYWG
G
1
TSOP−5
2.5 V – 5.5 V Operating Range
70 mW High-side MOSFET
Current Limit:
User adjustable from 100 mA to 2.1 A
Fixed 500 mA, 1 A, 1.5 A, 2 A and 2.1 A
Under Voltage Lock-out (UVLO)
Built-in Soft-start
Thermal Protection
Soft Turn-off
Reverse Voltage Protection
Junction Temperature Range:
−40C
to 125C
Enable Active High or Low (EN or EN)
Compliance to IEC61000−4−2 (Level 4)
8.0 kV (Contact)
15 kV (Air)
UL Listed
−
File No. E343275
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
These are Pb-Free Devices
XXXAYWG
G
1
TSOP−6
XXX
A
M
Y
W
G
= Specific Device Code
=Assembly Location
= Date Code
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 20 of this data sheet.
Typical Applications
Laptops
USB Ports/Hubs
TVs
Semiconductor Components Industries, LLC, 2013
April, 2013
−
Rev. 12
1
Publication Order Number:
NCP380/D
NCP380, NCV380
USB
DATA
D+
D−
VBUS
GND
USB INPUT
5V
R
fault
100 kW
FLAG
EN
1
mF
IN
OUT
120
mF
NCP380
USB
Port
FLAG
EN
GND
ILIM*
R
lim
*For Adjustable Version Only.
Figure 1. Typical Application Circuit
OUT 1
ILIM* 2
FLAG
3
UDFN6
(Top view)
PAD1
6 IN
5 GND
4 EN
OUT
GND
FLAG
1
2
3
TSOP−5
5
IN
IN
GND
1
2
3
TSOP−6
6
5
4
OUT
ILIM*
FLAG
4
EN
EN
*For adjustable version only, otherwise not connected.
Figure 2. Pin Connections
Table 1. PIN FUNCTION DESCRIPTION
Pin Name
EN
GND
IN
FLAG
OUT
Type
INPUT
POWER
POWER
OUTPUT
OUTPUT
Ground connection;
Power-switch input voltage; connect a 1
mF
or greater ceramic capacitor from IN to GND as close as pos-
sible to the IC.
Active-low open-drain output, asserted during overcurrent, overtemperature or reverse-voltage conditions.
Connect a 10 kW or greater resistor pull-up, otherwise leave unconnected.
Power-switch output; connect a 1
mF
ceramic capacitor from OUT to GND as close as possible to the IC
is recommended. A 1
mF
or greater ceramic capacitor from OUT to GND must be connected if the USB
requirement (i.e.120
mF
capacitor minimum) is not met.
External resistor used to set current-limit threshold; recommended 5 kW < R
ILIM
< 250 kW.
Exposed Thermal Pad: Must be soldered to PCB Ground plane
Description
Enable input, logic low/high (i.e. EN or EN) turns on power switch
ILIM*
PAD1**
INPUT
THERMAL
*(For adjustable version only, otherwise not connected.
**For DFN version only.
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2
NCP380, NCV380
Table 2. MAXIMUM RATINGS
Rating
From IN to OUT Pins: Input/Output (Note 1)
IN, OUT, EN, ILIM, FLAG, Pins: Input/Output (Note 1)
FLAG Sink Current
I
LIM
Source Current
ESD Withstand Voltage (IEC 61000−4−2)
(Output Only, when Bypassed with 1.0
mF
Capacitor Minimum)
Human Body Model (HBM) ESD Rating (Note 2)
Machine Model (MM) ESD Rating (Notes 2 and 3)
Latch-up Protection (Note 4)
Pins IN, OUT, EN, ILIM, FLAG
Maximum Junction Temperature Range (Note 6)
Storage Temperature Range
Moisture Sensitivity (Note 5)
Symbol
V
IN ,
V
OUT
V
EN,
V
ILIM,
V
FLAG,
V
IN,
V
OUT
I
SINK
I
LIM
ESD IEC
ESD HBM
ESD MM
LU
T
J
T
STG
MSL
Value
−7.0
to +7.0
−0.3
to +7.0
1
1
15 Air, 8 Contact
2,000
200
100
−40
to +TSD
−40
to +150
Level 1
Unit
V
V
mA
mA
kV
V
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. According to JEDEC standard JESD22−A108.
2. This device series contains ESD protection and passes the following tests:
Human Body Model (HBM)
2.0
kV per JEDEC standard: JESD22−A114 for all pins.
Machine Model (MM)
200
V per JEDEC standard: JESD22−A115 for all pins.
3. Except EN pin, 150 V.
4. Latch up Current Maximum Rating:
100
mA per JEDEC standard: JESD78 class II.
5. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J−STD−020.
6. A thermal shutdown protection avoids irreversible damage on the device due to power dissipation.
Table 3. OPERATING CONDITIONS
Symbol
V
IN
V
EN
T
A
T
J
R
ILIM
I
SINK
C
IN
C
OUT
R
qJA
Parameter
Operational Power Supply
Enable Voltage
Ambient Temperature Range
Junction Temperature Range
Resistor from ILIM to GND Pin
FLAG Sink Current
Decoupling Input Capacitor
Decoupling Output Capacitor
Thermal Resistance Junction-to-Air
USB Port per Hub
UDFN−6 Package (Notes 7 and 8)
TSOP−5 Package (Notes 7 and 8)
TSOP−6 Package (Notes 7 and 8)
I
OUT
P
D
Maximum DC Current
Power Dissipation Rating (Note 9)
UDFN−6 Package
TSOP−5, TSOP−6 Package
T
A
v
25C
UDFN−6 Package
TSOP−5 Package
TSOP−6 Package
T
A
= 85C
UDFN−6 Package
TSOP−5 Package
TSOP−6 Package
Conditions
Min
2.5
0
−40
−40
5.0
−
1.0
120
−
−
−
−
−
−
−
−
−
−
−
Typ
−
−
25
25
−
−
−
−
120
305
280
−
−
830
325
350
325
130
145
Max
5.5
5.5
+85
+125
250
1.0
−
−
−
−
−
2.1
1.0
−
−
−
−
−
−
C
C
kW
mA
mF
mF
C/W
C/W
C/W
A
A
mW
mW
mW
mW
mW
mW
Unit
V
7. A thermal shutdown protection avoids irreversible damage on the device due to power dissipation.
8. The R
qJA
is dependent of the PCB heat dissipation. Board used to drive this data was a 2”
2” NCP380EVB board. It is a 2 layers board
with 2-once copper traces on top and bottom of the board. Exposed pad is connected to ground plane for UDFN−6 version only.
9. The maximum power dissipation (P
D
) is given by the following formula:
T
*
T
P
D
+
JMAX
A
R
qJA
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NCP380, NCV380
Table 4. ELECTRICAL CHARACTERISTICS
(Min & Max Limits apply for T
A
between
−40C
to +85C and T
J
up to +125C for V
IN
between 2.5 V to 5.5 V (Unless otherwise noted).
Typical values are referenced to T
A
= +25C and V
IN
= 5 V.)
Symbol
POWER SWITCH
R
DS(on)
Static Drain-source On-state
Resistance
DFN Package
TSOP Package
V
IN
= 5 V
2.5 V < V
IN
< 5.5 V
V
IN
= 5 V
2.5 V < V
IN
< 5.5 V
T
R
T
F
Output Rise Time
Output Fall Time
V
IN
= 5 V
V
IN
= 2.5 V
V
IN
= 5 V
V
IN
= 2.5 V
ENABLE INPUT EN OR EN
V
IH
V
IL
I
EN
T
ON
T
OFF
I
OCP
High-level Input Voltage
Low-level Input Voltage
Input Current
Turn On Time
Turn Off Time
Current-limit Threshold
(Maximum DC Output Current
I
OUT
Delivered to Load)
V
IN
= 5 V
R
ILIM
= 20 kW (Note 11)
R
ILIM
= 40 kW
(Notes 11 and 13)
Fixed 0.5 A (Note 12)
Fixed 1.0 A (Note 12)
Fixed 1.5 A (Note 12)
Fixed 2.0 A (Note 12)
Fixed 2.1 A (Note 12)
T
DET
T
REG
T
OCP
V
REV
T
REV
Response Time to Short Circuit
Regulation Time
Overcurrent Protection Time
Reverse-voltage Comparator
Trip Point (V
OUT
– V
IN
)
Time from Reverse-voltage
Condition to MOSFET Switch Off
& FLAG Low
Re-arming Time
IN Pin Low-level Input Voltage
IN Pin Hysteresis
Re-arming Time
Low-level Output Supply Current
High-level Output Supply
Current
V
IN
= 5 V, No Load on OUT, Device OFF
V
EN
=
0
V or V
EN
= 5 V
V
IN
= 5 V, Device Enable
2 A and 2.1 A Versions
1 A and 1.5 A Current Versions
0.5 A Current Version
V
OUT
= 5 V, V
IN
= 0 V
T
J
= 25C
V
IN
Rising
T
J
= 25C
V
IN
= 5 V
V
IN
= 5 V
V
EN
= 0 V, V
EN
= 5 V
C
LOAD
= 1
mF,
R
LOAD
= 100
W
(Note 11)
1.2
−
−0.5
2.0
1.0
1.02
0.595
0.5
1.0
1.5
2.0
2.1
−
1.8
14
−
4.0
−
−
−
3.0
−
1.20
0.700
0.58
1.15
1.75
2.25
2.25
2.0
3.0
20
100
6.0
−
0.4
0.5
4.0
3.0
1.38
0.805
0.65
1.3
1.9
2.5
2.5
−
4.0
26
−
9.0
ms
ms
ms
mV
ms
A
V
V
mA
ms
ms
A
–40C < T
J
< 125C
–40C < T
J
< 125C
–40C < T
J
< 125C
–40C < T
J
< 125C
C
LOAD
= 1
mF,
R
LOAD
= 100
W
(Note 10)
−
−
−
−
0.3
0.2
0.1
0.1
55
−
70
−
1.0
0.65
−
−
75
110
95
135
1.5
1.0
0.5
0.5
ms
mW
mW
Parameter
Conditions
Min
Typ
Max
Unit
CURRENT LIMIT
REVERSE-VOLTAGE PROTECTION
T
RREV
V
UVLO
V
HYST
T
RUVLO
I
INOFF
I
INON
7.0
2.0
25
7.0
−
10
2.3
−
10
1.0
15
2.4
60
15
2.1
ms
V
mV
ms
mA
mA
UNDERVOLTAGE LOCKOUT
SUPPLY CURRENT
−
−
−
−
−
−
−
−
90
80
70
1.0
I
REV
Reverse Leakage Current
mA
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NCP380, NCV380
Table 4. ELECTRICAL CHARACTERISTICS
(continued)
(Min & Max Limits apply for T
A
between
−40C
to +85C and T
J
up to +125C for V
IN
between 2.5 V to 5.5 V (Unless otherwise noted).
Typical values are referenced to T
A
= +25C and V
IN
= 5 V.)
Symbol
FLAG PIN
V
OL
I
LEAK
T
FLG
T
FOCP
T
SD
T
SDOCP
T
RSD
FLAG Output Low Voltage
Off-state Leakage
FLAG Deglitch
FLAG Deglitch
Thermal Shutdown Threshold
Thermal Regulation Threshold
Thermal Shutdown Rearming
Threshold
I
FLAG
= 1 mA
V
FLAG
= 5 V
FLAG De-assertion Time due to Overcurrent or
Reverse Voltage Condition
FLAG Assertion due to Overcurrent
4.0
6.0
6.0
8.0
140
125
115
400
1.0
9.0
12
mV
mA
ms
ms
C
C
C
Parameter
Conditions
Min
Typ
Max
Unit
THERMAL SHUTDOWN
10. Parameters are guaranteed for C
LOAD
and R
LOAD
connected to the OUT pin with respect to the ground, See Figure 3
.
11. Adjustable current version, R
ILIM
tolerance
1%.
12. Fixed current version.
13. Not production test, guaranteed by characterization.
VIN
IN
1
mF
NCP380
OUT
C
LOAD
R
LOAD
GND
Figure 3. Test Configuration
V
EN
50%
T
R
T
F
V
EN
T
OFF
T
ON
V
OUT
90%
10%
V
OUT
90%
10%
10%
Figure 4. Voltage Waveform
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