NCV47551 PDF даташит
Спецификация NCV47551 изготовлена «ON Semiconductor» и имеет функцию, называемую «3.3V to 20V Adjustable Low Noise LDO Regulator». |
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Детали детали
Номер произв | NCV47551 |
Описание | 3.3V to 20V Adjustable Low Noise LDO Regulator |
Производители | ON Semiconductor |
логотип |
12 Pages
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NCV47551
3.3 V to 20 V Adjustable
Low Noise LDO Regulator
with Adjustable Current
Limit and 3.3 V Logic
Compatible Enable Input
The NCV47551 is a low noise low output current integrated low
dropout regulator designed for use in harsh automotive environments.
It includes wide operating temperature and input voltage ranges. The
device is offered with adjustable voltage versions 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. 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.
Voltage on CSO pin is proportional to output current.
Features
• Adjustable Voltage Version (from 3.3 V to 20 V) ± 3% Output
Voltage
• Enable Input (3.3 V Logic Compatible Thresholds)
• Adjustable Current Limit (from 100 mA to 20 mA) with 10%
Accuracy
• Protection Features:
♦ Current Limitation
♦ Thermal Shutdown
♦ Reverse Input Voltage
• This is a Pb−Free Device
Typical Applications
• Microphone Power Supply
• Audio and Infotainment System
• Navigation
• Satellite Radio
http://onsemi.com
8
1
SOIC−8
SUFFIX D
CASE 751
MARKING
DIAGRAM
8
47551
ALYW
G
1
47551
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
Cin
1 mF
Vin Vout
EN
NCV47551
ADJ
Cb*
R1
Cnoise*
NR
GND
CSO
CCSO
1 mF
RCSO
R2
Cb*, Cnoise* − Optional for noise reduction.
Figure 1. Application Schematic
(See Application Section for more details)
Cout
10 mF
© Semiconductor Components Industries, LLC, v2013
December, 2013 − Rev. 0
1
Publication Order Number:
NCV47551/D
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NCV47551
Vin
EN
NR
GND
NR
VOLTAGE
REFERENCE
VREF1
VREF2
ENABLE
SATURATION
PROTECTION
THERMAL
SHUTDOWN
SP
TSD
NOISE
REDUCTION
NR
PASS DEVICE
AND
CURRENT MIRROR
ICSO = Iout
(Ratio 1:1)
SP
+
−
TSD
+ VREF2
2.55 V
−
VREF1
1.265 V
Vout
CSO
ADJ
Figure 2. Simplified Block Diagram
1
ADJ
GND
8
Vout
NC
EN NR
CSO
Vin
SOIC−8
Figure 3. Pin Connections
(Top View)
PIN FUNCTION DESCRIPTION
Pin No.
SOIC−8
Pin Name
Description
1 ADJ Adjustable Voltage Setting Input. See Application Section for more details.
2
GND
Power Supply Ground.
3 EN Enable Input; low level disables the IC.
4
CSO
Current Sense Output, Current Limit setting and Output Current value information. See Application Section
for more details.
5 Vin Positive Power Supply Input.
6 NR Noise Reduction Input. Connect either external capacitor for decreasing noise or must be left unconnected.
7 NC Not Connected.
8 Vout Regulated Output Voltage.
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NCV47551
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Min
Max Unit
Input Voltage DC
Vin −42
45 V
Enable Input Voltage
VEN −42
45 V
Adjustable Input Voltage
VADJ
−0.3
10 V
CSO Voltage
VCSO
−0.3
7V
Noise Reduction Input Voltage
VNR −0.3
7V
Output Voltage
Vout −1
40 V
Junction Temperature
TJ −40 150 °C
Storage Temperature
TSTG
−55
150 °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.
ESD CAPABILITY (Note 1)
Rating
Symbol
ESD Capability, Human Body Model
ESDHBM
ESD Capability, Machine Model
ESDMM
1. 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)
Min
−2
−200
Max Unit
2 kV
200 V
LEAD SOLDERING TEMPERATURE AND MSL (Note 2)
Rating
Symbol
Min
Max
Moisture Sensitivity Level
MSL
1
Lead Temperature Soldering
Reflow (SMD Styles Only), Pb−Free Versions
TSLD
− 265 peak
2. For more information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D
Unit
−
°C
THERMAL CHARACTERISTICS (Note 3)
Rating
Symbol
Value
Thermal Characteristics
Thermal Resistance, Junction−to−Air (Note 4)
Thermal Reference, Junction−to−Lead (Note 4)
RRψθJJAL
3. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
4. Values based on copper area of 645 mm2 (or 1 in2) of 1 oz copper thickness and FR4 PCB substrate.
133
76
Unit
°C/W
RECOMMENDED OPERATING RANGES
Rating
Symbol
Min
Max Unit
Input Voltage (Note 5)
Vin 4.4
40 V
Nominal Output Voltage
Vout_nom
3.3
20 V
Output Current Limit (Note 6)
ILIM 0.1
20 mA
Junction Temperature
TJ −40 150 °C
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 Vin = 4.4 V or (Vout_nom + 1 V), whichever is higher.
6. Corresponding RCSO is in range from 25.5 kW down to 127.5 W.
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Номер в каталоге | Описание | Производители |
NCV47551 | 3.3V to 20V Adjustable Low Noise LDO Regulator | ON Semiconductor |
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