|
|
PDF NCV8613 Data sheet ( Hoja de datos )
| Número de pieza | NCV8613 | |
| Descripción | Ultra-Low Iq Automotive System Power Supply IC Power Saving Triple-Output Linear Regulator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de NCV8613 (archivo pdf) en la parte inferior de esta página. Total 25 Páginas | ||
|
No Preview Available !
NCV8613
Ultra-Low Iq Automotive
System Power Supply IC
Power Saving Triple-Output
Linear Regulator
The NCV8613 is a multiple output linear regulator IC’s with an
Automatic Switchover (ASO) input voltage selector. The ASO circuit
selects between three different input voltage sources to reduce power
dissipation and to maintain the output voltage level across varying
battery line voltages associated with an automotive environment.
The NCV8613 is specifically designed to address automotive radio
systems and instrument cluster power supply requirements. The
NCV8613 can be used in combination with the 4−Output
Controller/Regulator IC, NCV885x, to form a complete automotive
radio or instrument cluster power solution. The NCV8613 is intended
to supply power to various “always on” loads such as the CAN
transceivers and microcontrollers (core, memory and IO). The
NCV8613 has three output voltages, a reset / delay circuit, and a host
of control features suitable for the automotive radio and instrument
cluster systems.
Features
• Operating Range 7.0 V to 18.0 V (45 V Load Dump Tolerant)
• Output Voltage Tolerance, All Rails, $2%
• < 50 mA Quiescent Current
• Independent Input for LDO3 Linear Regulator
• High Voltage Ignition Buffer
• Automatic Switchover Input Voltage Selector
• Independent Input Voltage Monitor with a High Input Voltage and
Low Input Voltage (Brown−out) Indicators
• Thermal Warning Indicator with Thermal Shutdown
• Single Reset with Externally Adjustable Delay for the 3.3 V Rail
• Push−Pull Outputs for Logic Level Control Signals
• All Ceramic Solution for Reduced Leakage Current at the Output
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• This is a Pb−Free Device
Applications
• Automotive Radio
• Instrument Cluster
www.DataSheet4U.com
http://onsemi.com
MARKING
20 DIAGRAM
1
DFN20
MN SUFFIX
CASE 505AB
NCV8613
AWLYYWWG
G
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
ASO_RAIL
VIN−B
VIN−H
VIN−A
VBATT_MON
HV_DET
BO_DET
NC
GND
HOT_FLG
VIN_S3
VOUT3
VOUT2
VOUT1
VPP
RST
DLY
GND
IGNOUT
IGNIN
ORDERING INFORMATION
Device
Package
Shipping†
NCV8613MNR2G DFN20 2500 / Tape & Reel
(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.
© Semiconductor Components Industries, LLC, 2008
December, 2008 − Rev. 0
1
Publication Order Number:
NCV8613/D
1 page  
NCV8613
SUPPLY VOLTAGES AND SYSTEM SPECIFICATION ELECTRICAL CHARACTERISTICS (7 V < ASO_RAIL < 18 V, VIN−H
= VIN−B w ASO_RAIL, VPP = 5 V, VIN_S3 tied to ASO_RAIL, VBATT_MON = 0 V, IGNIN = 0 V, ISYS = 3 mA (Note 6))
Minimum/Maximum 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 RAILS
Quiescent Current (Notes 4 and 6)
iq TJ = 25°C, ISYS = 70 mA, VIN−A =
VIN_S3 = 0 V, VIN−B = 13.2 V
34 50
mA
Minimum Operating Voltage
(VIN−H, VIN−B)
4.5 V
THERMAL MONITORING
Thermal Warning (HOT_FLG)
Temperature
TWARN
140 150 160
°C
TWARN Hysteresis
Thermal Shutdown
Thermal Shutdown Hysteresis
Delta Junction Temperature
(TSD − TWARN)
HOT_FLG Voltage Low
HOT_FLG Voltage High
AUTO SWITCHOVER
TJ < TWARN, 10 kW Pullup to 3.3 V
TJ > TWARN, 10 kW Pulldown to GND
10 20
160 170 180
10 20
10 20 30
VPP−0.5
0.4
°C
°C
°C
°C
V
V
VIN−A Quiescent Current
VIN−A to VIN−B Risetime
VIN−B to VIN−A Falltime
VIN−A Operating Threshold
TJ = 25°C, CASO_RAIL = 1 mF,
ISYS = 400 mA
TJ = 25 °C, CASO_RAIL = 1 mF,
ISYS = 400 mA
VIN−A Rising
24 mA
200 msec
100 msec
7.2 7.5 7.75
V
VIN−A Operating Hysteresis
VIN−A Falling
100 175 250
mV
Max VIN−B to VASO_RAIL Voltage Drop
Max VIN−H to VASO_RAIL Voltage Drop
RESET (RST Pin)
ISYS = 400 mA, VIN−B = 7 V
ISYS = 400 mA, VIN−H = 7.5 V
1.5 V
2.0 V
RESET Threshold
Hysteresis
Reset Voltage High
Reset Voltage Low
DELAY (DLY Pin)
% of VOUT2
% of VOUT2
10 kW Pulldown to GND
10 kW Pullup to 3.3 V
90 93
VPP−0.5
96
2.5
0.4
%
%
V
V
Charge Current
Delay Trip Point Voltage
2.4 5
2.0
7
mA
V
IGNITION BUFFER
Schmitt Trigger Rising Threshold
2.75 3.25 3.75
V
Schmitt Trigger Falling Threshold
0.8 1.0 1.2
V
www.DaItGaNShOeUeTt4VUo.ltcaogme Low
IGNOUT Leakage Current
VBATT MONITOR
IGNIN = 5 V, 10 kW Pullup to 5 V
TJ = 25°C, IGNOUT = 5 V
0.4
0.1 0.5
V
mA
VBATT_MON Quiescent Current
VBATT_MON Minimum Operating Voltage
TJ = 25°C, VBATT_MON = 13.2 V
Threshold where BO_DET and HV_DET
signals become valid
35
1.0 2.0 2.5
mA
V
http://onsemi.com
5
5 Page 
NCV8613
therefore is not effected by the soft−start function upon the
device’s return from an over voltage condition. Also, when
VIN_S3 is connected to an independent supply and the
supply is made available after the soft−start function, LDO3
will not have an independent soft−start.
LDO1 Regulator
The LDO1 error amplifier compares the reference voltage
to a sample of the output voltage (VOUT1) and drives the gate
of an internal PFET. The reference is a bandgap design to
give it a temperature−stable output.
LDO2 Regulator
The LDO2 error amplifier compares the reference voltage
to a sample of the output voltage (VOUT2) and drives the gate
of an internal PFET. The reference is a bandgap design to
give it a temperature−stable output.
LDO3 Regulator
The LDO3 error amplifier compares the reference voltage
to a sample of the output voltage (VOUT3) and drives the gate
of an internal PFET. The reference is a bandgap design to
give it a temperature−stable output
Stability Considerations
The output or compensation capacitors, COUTX help
determine three main characteristics of a linear regulator:
startup delay, load transient response and loop stability. The
capacitor values and type should be based on cost,
availability, size and temperature constraints. Tantalum,
aluminum electrolytic, film, or ceramic capacitors are all
acceptable solutions, however, attention must be paid to
ESR constraints. The aluminum electrolytic capacitor is the
least expensive solution, but, if the circuit operates at low
temperatures (−25°C to −40°C), both the value and ESR of
the capacitor will vary considerably. The capacitor
manufacturer’s data sheet usually provides this information.
The value for each output capacitor COUTX shown in
Figures 20 − 25 should work for most applications;
however, it is not necessarily the optimized solution.
Stability is guaranteed at the following values:
COUT1 w 47 mF, ESR v 10 W
COUT2 w 47 mF, ESR v 10 W
COUT3 w 47 mF, ESR v 10 W
Actual limits are shown in graphs in the Typical
Performance Characteristics section.
Thermal
As power in the NCV8613 increases, it might become
necessary to provide some thermal relief. The maximum
www.DpatoawShereedt4isUsi.pcoamtion supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and the ambient temperature
affect the rate of junction temperature rise for the part. When
the NCV8613 has good thermal conductivity through the
PCB, the junction temperature will be relatively low with
high power applications.
The maximum dissipation the NCV8613 can handle is
given by:
PD(max) = (TJ(max)−TA)/RthJA
See Figure 18 for RthJA versus PCB Area.
RthJA could be further decreased by using Multilayer PCB
and/or if Air Flow is taken into account.
IGNOUT Circuitry
The IGNOUT pin is an open drain output Schmitt Trigger,
externally pulled up to 3.3 V via a 10 kW resistor. The
IGNOUT pin can be used to monitor the ignition signal of
the vehicle, and send a signal to mute an audio amplifier
during engine crank. The IGNIN pin is ESD protected, and
can handle peak transients up to 45 V. An external diode is
recommended to protect against negative voltage spikes.
The IGNOUT circuitry requires the device to be enabled
for proper operation.
VPP Function
The reset and warning circuits utilize a push−pull output
stage. The high signal is provided by VPP. VPP is an
externally fed signal that can be tied to an output, or tied to
another regulated voltage signal, typically 5 V, but as low as
3.0 V. Under this setup, and any setup where LDO’s 1−3 are
tied to VPP, loss of the VPP signal can occur if the pull up
voltage is reduced due to over current, thermal shutdown, or
overvoltage conditions.
Reset Outputs
The Reset Output is used as the power on indicator to the
Microcontroller. The NCV8613 Reset circuitry monitors the
output on LDO2.
This signal indicates when the output voltage is suitable
for reliable operation. It pulls low when the output is not
considered to be suitable. The Reset circuitry utilizes a push
pull output stage, with VPP as the high signal. In the event
of the part shutting down via Battery voltage or Enable, the
Reset output will be pulled to ground.
The input and output conditions that control the Reset
Output and the relative timing are illustrated in Figure 4,
Reset Timing. Output voltage regulation must be maintained
for the delay time before the reset output signals a valid
condition. The delay for the reset output is defined as the
amount of time it takes the timing capacitor on the delay pin
to charge from a residual voltage of 0 V to the Delay timing
threshold voltage VD of 2 V. The charging current for this is
ID of 5 mA. By using typical IC parameters with a 10 nF
capacitor on the Delay Pin, the following time delay is
derived:
tRD = CD * VDU / ID
tRD = 10 nF * (2 V)/ (5 mA) = 4 ms
Other time delays can be obtained by changing the CD
capacitor value. The Delay Time can be reduced by
decreasing the capacitance of CD. Using the formula above,
delay can be reduced as desired. Leaving the Delay Pin open
http://onsemi.com
11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet NCV8613.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NCV8612 | Ultra-Low Iq Automotive System Power Supply IC Power Saving Triple-Output Linear Regulator | ON Semiconductor |
| NCV8613 | Ultra-Low Iq Automotive System Power Supply IC Power Saving Triple-Output Linear Regulator | ON Semiconductor |
| NCV8614 | Ultra-Low Iq Automotive System Power Supply IC Power Saving Triple-Output Linear Regulator | ON Semiconductor |
| NCV8614B | Ultra-Low Iq Automotive System Power Supply IC Power Saving Triple-Output Linear Regulator | ON Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |