NCV8855BMNR2G ON Semiconductor, NCV8855BMNR2G Datasheet

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NCV8855BMNR2G

Manufacturer Part Number
NCV8855BMNR2G
Description
IC BUCK SYNC QUAD 40QFN
Manufacturer
ON Semiconductor
Type
Step-Down (Buck)r
Datasheet

Specifications of NCV8855BMNR2G

Topology
Step-Down (Buck) (2), Linear (LDO) (2)
Function
Automotive Radio and Instrument Cluster Power Supply
Number Of Outputs
4
Frequency - Switching
170kHz
Voltage/current - Output 1
Controller
Voltage/current - Output 2
Adjustable, 2.5A
Voltage/current - Output 3
Controller
W/led Driver
No
W/supervisor
No
W/sequencer
Yes
Voltage - Supply
9 V ~ 18 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
40-VFQFN Exposed Pad
Voltage - Output
Adjustable
Voltage - Input
9 ~ 18 V
Internal Switch(s)
Both
Synchronous Rectifier
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Power - Output
-
Other names
NCV8855BMNR2G
NCV8855BMNR2GOSTR

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
NCV8855BMNR2G
Manufacturer:
ON Semiconductor
Quantity:
1 150
NCV8855
Quad-Output Automotive
System Power Supply IC
with Integrated High-Side
2A Switch
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 kHz, with a SYNC pin for
external frequency synchronization.
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
Applications
© Semiconductor Components Industries, LLC, 2010
May, 2010 − Rev. 1
The NCV8855 is a multiple output controller / regulator IC with an
The NCV8855 is intended to supply power to various loads, such as
< 1 mA Shutdown Current
Meets ES−XW7T−1A278−AB Test Pulse G – Loaded Conditions
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
Automotive Radio
Instrument Cluster, Driver Information System (DIS)
IN
Operating Range 9.0 to 18.0 V
1
†For information on tape and reel specifications,
NCV8855BMNR2G QFN−40
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
40 PIN QFN, 6x6
Device
CASE 488AR
MN SUFFIX
A
WL
YY
WW
G
ORDERING INFORMATION
1
40
http://onsemi.com
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Pb−Free)
Package
Publication Order Number:
1
AWLYYWWG
MARKING
DIAGRAM
2500 / Tape &
NCV8855
Shipping
NCV8855/D
Reel

Related parts for NCV8855BMNR2G

NCV8855BMNR2G Summary of contents

Page 1

... YY = Year WW = Work Week G = Pb−Free Package ORDERING INFORMATION Device Package NCV8855BMNR2G QFN−40 (Pb−Free) †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. 1 Publication Order Number: MARKING DIAGRAM ...

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... I LIMIT DRAIL LDO 36 BST2 11 VIN_SW 10 VBATT Q SN2 LIMIT SS2 V REF EA SW_FB2 3 COMP2 2 OSC SYNC 4 180 ° out−of−phase HS_EN 7 LDO_EN 6 5V_IC ISNS2+ 31 VBATT I LIMIT ISNS2− _G2 VOUT4 LR_FB2 34 70% V REF CLK1 Charge Pump Manufacturer ON Semiconductor ON Semiconductor ON Semiconductor VOUT2 ...

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PIN FUNCTION DESCRIPTIONS Pin No. Symbol 5 SYS_EN Main enable pin for the IC. A logic high on this pin will enable the part. Leaving this pin floating or driving it to ground will place the IC in shutdown mode. ...

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PIN FUNCTION DESCRIPTIONS Pin No. Symbol LOW DROPOUT LINEAR REGULATOR CONTROLLER 1 (LDO1) PIN CONNECTIONS 38 LR_FB1 LDO controller output voltage feedback pin. Connect a resistor divider network to VOUT3 to set the desired output voltage. 1 LR_G1 Error amplifier ...

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ATTRIBUTES Thermal Characteristic R generated from copper 1 sided PCB qJA ESD Capability Human Body Model (SN1, SN2) Human Body Model (All Others) Machine Model Moisture Sensitivity Level RECOMMENDED OPERATING CONDITIONS Description VBATT range ...

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ELECTRICAL CHARACTERISTICS (V HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1: Min/Max values are valid for the temperature range −40° 150°C unless noted otherwise. Min/Max values are guaranteed by test, ...

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ELECTRICAL CHARACTERISTICS (V HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1: Min/Max values are valid for the temperature range −40° 150°C unless noted otherwise. Min/Max values are guaranteed by test, ...

Page 8

ELECTRICAL CHARACTERISTICS (V HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1: Min/Max values are valid for the temperature range −40° 150°C unless noted otherwise. Min/Max values are guaranteed by test, ...

Page 9

ELECTRICAL CHARACTERISTICS (V HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1: Min/Max values are valid for the temperature range −40° 150°C unless noted otherwise. Min/Max values are guaranteed by test, ...

Page 10

ELECTRICAL CHARACTERISTICS (V HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1: Min/Max values are valid for the temperature range −40° 150°C unless noted otherwise. Min/Max values are guaranteed by test, ...

Page 11

ELECTRICAL CHARACTERISTICS (V HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1: Min/Max values are valid for the temperature range −40° 150°C unless noted otherwise. Min/Max values are guaranteed by test, ...

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TYPICAL PERFORMANCE CHARACTERISTICS 169.4 169.2 169.0 168.8 168.6 168.4 168.2 168.0 167.8 167.6 167.4 −50 − JUNCTION TEMPERATURE (°C) J Figure 4. Switching Frequency vs. Junction Temperature 3.2 3.1 3.0 2.9 2.8 2.7 2.6 ...

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TYPICAL PERFORMANCE CHARACTERISTICS 1.820 1.815 SMPS2 1.810 1.805 SMPS1 1.800 1.795 1.790 1.785 −50 − JUNCTION TEMPERATURE (°C) J Figure 10. Ramp Amplitude vs. Junction Temperature 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.00 ...

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TYPICAL PERFORMANCE CHARACTERISTICS 0.18 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.00 −50 − JUNCTION TEMPERATURE (°C) J Figure 16. LDO EN Leakage Current vs. Junction Temperature http://onsemi.com 14 100 125 150 ...

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Device Description The NCV8855 is a multiple output controller / regulator IC with an integrated high−side load switch. The NCV8855 will address automotive radio system and instrument cluster power supply requirements. In addition to the high−side load switch, the NCV8855 ...

Page 16

VOUT3 is derived from VOUT1 (as shown in Figure 1). Startup and Shutdown Behavior 18.5 V 17.9 V VIN >2.2 V SYS_EN <0.8 V 4.35 V 8V_IC 4.2 V 4.35 V 5V_IC 4.2 V VOUT1 VOUT2 >2.2 ...

Page 17

T is the soft−start time and dt SS1 COUT1 * VOUT1 I LIMIT Overcurrent Protection (SMPS2) The current limit for SMPS2 is internally set at 3.05 A (typ). The operation is similar ...

Page 18

The IPAK package can be attached to the radio’s metal enclosure or it can be attached to an independent heatsink. If output current demands are low, then a DPAK package can be used for a ...

Page 19

SMPS2 Diode Selection The diode in SMPS2 provides the inductor current path when the power switch turns off. This is known as the non−synchronous diode or commutation diode. The peak reverse voltage is equal to the maximum operating input voltage. ...

Page 20

Clock Duty cycle Figure 23. Irms vs Phase Here it is shown that the “sweet spot” phase angle (where the input RMS current ...

Page 21

... Place wP2 at half the switching frequency Performing these calculations will take some amount of iterations and bench testing to verify results. However, ON Semiconductor has developed a tool to speed up the design process tremendously with great ease and accuracy. This tool can be downloaded by following the below link. ...

Page 22

AUTOMOTIVE RADIO SYSTEM BLOCK DIAGRAM EXAMPLE NCV8855 WITH NCV8612 VBATT 8V From external CAN transceiver HOT_FLG_S Ignition Power Amplifier SYS_EN HS_EN VBATT 8V DVD ROM Drive VBATT 8.5V AM/FM Tuner VBATT NOTE: Not all pins are shown above. ASO_RAIL 1 ...

Page 23

... Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81− ...

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