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PDF NCV8855 Data sheet ( Hoja de datos )
| Número de pieza | NCV8855 | |
| Descripción | Quad-Output Automotive System Power Supply IC | |
| Fabricantes | ON Semiconductor | |
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NCV8855
www.DataSheet4U.com
Quad-Output Automotive
System Power Supply IC
with Integrated High-Side
2A Switch
The NCV8855 is a multiple output controller / regulator IC with an
integrated high−side load switch. The NCV8855 addresses automotive
radio system and instrument cluster power supply requirements. In
addition to the high−side load switch, the NCV8855 includes a
switch−mode power supply (SMPS) buck controller, a 2.5 A SMPS
buck regulator and two low dropout (LDO) linear regulator
controllers. The NCV8855 in combination with the ultra−low
quiescent current NCV861x IC forms an eight−output automotive
radio or instrument cluster power solution. The NCV8855 has an
internally set switching frequency of 170, with a SYNC pin for
external frequency synchronization.
The NCV8855 is intended to supply power to various loads, such as
a tuner, CD logic, audio processor and CD / tape control within a car
radio. The high−side switch can be used for a CD / tape mechanism or
switching an electrically−powered antenna or display unit. In an
instrument cluster application, the NCV8855 can be used to power
graphics display, flash memory and CAN transceivers. In addition, the
high−side switch can be used to limit power to a TFT display during a
battery over−voltage condition.
Features
• < 1 mA Shutdown Current
• Meets ES−XW7T−1A278−AB Test Pulse G – Loaded Conditions
• VIN Operating Range 9.0 to 18.0 V
• 1 SMPS Controller with Adjustable Current Limit
• 1 SMPS Regulator with Internal 300 mW NMOS Switch
• 2 LDO Controllers with Current Limit and Short Circuit Protection
• 1 High−side Load Switch with Internal 300 mW NMOS FET
• Adjustable Output Voltage for All Controllers / Regulators
• 800 mV, $1% Reference Voltage
• System Enable Pin
• Single Enable Pin for Both LDO Controllers
• Independent Enable for High−side Load Switch
• Thermal Shutdown with Thermal Warning Indicator
• This is a Pb−Free Device
Applications
• Automotive Radio
• Instrument Cluster, Driver Information System (DIS)
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MARKING
DIAGRAM
1 40
40 PIN QFN, 6x6
MN SUFFIX
CASE 488AR
1
NCV8855
AAWLYYWW
G
AA = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping†
NCV8855BMNR2G QFN−40
(Pb−Free)
2500 / Tape &
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2010
April, 2010 − Rev. 0
1
Publication Order Number:
NCV8855/D
1 page  
NCV8855
ATTRIBUTES
Description
Thermal Characteristic
RqJA generated from 1 sq in / 1 oz copper 1 sided PCB
ESD Capability
Human Body Model
Machine Model
Moisture Sensitivity Level
Symbol
RqJA
RqJC
MSL
Value
36
3
2
150
1
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Unit
°C/W
°C/W
kV
V
RECOMMENDED OPERATING CONDITIONS
Description
VBATT range (refer to Figure 1)
Ambient Temperature range
Value
9 V to 18 V
−40°C to 105°C
LR_G1 1
COMP2
SW_FB2
SYNC/ROSC
SYS_EN
LDO_EN
HS_EN
HOT_FLG
SN2
VIN_SW
Top View
COMP1
SW_FB1
HS_S
OCSET
VIN
BST1
GH1
SN1
DRV_VPP
GL1
Figure 2.
ELECTRICAL CHARACTERISTICS (VIN_SW = VIN = VISNS1+ = VISNS1− = VISNS2+ = VISNS2− = 13.2 V, SYS_EN = LDO_EN =
HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1:4] = 0 A) Min/Max values are valid for the temperature range −40°C v TJ v
150°C unless noted otherwise. Min/Max values are guaranteed by test, design or statistical correlation.
Parameter
Symbol
Conditions
Min Typ Max Unit
SUPPLY VOLTAGES AND SYSTEM SPECIFICATION
Supply Current and Operating Voltage Range
VIN_SW quiescent current
VIN_SW shutdown current
High VIN detect voltage
High VIN detect hysteresis
VOVP
No Switching, VSW_FB2 = 1V, SN2 =
PGND1, TJ = 25°C
SYS_EN = 0 V, TJ = 25°C
VIN rising
VIN falling
175
100 500
18 18.5 19
0.2 0.6
1
mA
nA
V
VIN quiescent current
TJ = 25°C
1. Guaranteed by design, not fully tested in production.
2. Indirectly guaranteed by test coverage of other parameters.
4 mA
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5
5 Page 
NCV8855
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ELECTRICAL CHARACTERISTICS (VIN_SW = VIN = VISNS1+ = VISNS1− = VISNS2+ = VISNS2− = 13.2 V, SYS_EN = LDO_EN =
HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1:4] = 0 A) Min/Max values are valid for the temperature range −40°C v TJ v
150°C unless noted otherwise. Min/Max values are guaranteed by test, design or statistical correlation.
Parameter
Symbol
Conditions
Min Typ Max Unit
High−side Load Switch (HSS)
MOSFET
HSS RDS(on)
HSS dropout voltage
Turn On/Off
VGS(HSS) = 8 V
IHS_S = 1 A
233 442
233 442
mW
mV
Turn on time (resistive load)
RHS_S = 6.6 W, 90% VIN
Turn off time
RHS_S = 6.6 W, 10% VIN
1. Guaranteed by design, not fully tested in production.
2. Indirectly guaranteed by test coverage of other parameters.
40 80 120 ms
50 125 200 ms
VHS _S
4.5V
1.506 msec 3.012 msec VDS w 3.75 V
VDS=3.75V
ILOAD 2.8A
HS_EN
HS Current Overload
(Latched shutdown of HS only)
Figure 3.
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11
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| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet NCV8855.PDF ] | |
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