NCV7430汽车LINRGBLED驱动器-综合文档资源-CSDN文库

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June, 2017 − Rev. 10

1 Publication Order Number:

NCV7430/D

NCV7430

Automotive LIN RGB LED

Driver

The NCV7430 is a single−chip RGB driver intended for dedicated

multicolor LED applications. The RGB LED driver contains a LIN

interface (slave) for parametric programming of LED color and intensity.

The device receives instructions through the LIN bus and

subsequently drives the LEDs independently.

The NCV7430 acts as a slave on the LIN bus and the master can

request specific status information (parameter values and error flags).

The LIN address of the NCV7430 can be programmed in the internal

memory of the device.

The NCV7430 is fully compatible with automotive requirements.

PRODUCT FEATURES

LED Driver

• 3 Independent LED Current Regulators

• LED Currents Adjustable with External Resistors

• Power Dissipation Option with External Ballast Transistor

Controller with One−Time−Programmable Memory (OTP)

• LED Modulation Controller for 3 LEDs

• Full LED Calibration Support

♦ Internal LED Color Calibration via Matrix Calculation

♦ Intensity Control (linear or logarithmic)

♦ Dimming and Color Transition (linear) Function

with Programmable Transition Time

LIN Interface

• LIN Physical Layer according to LIN 2.1/ SAE J2602

• OTP−programmable Device Node Number

• OTP−programmable Group Address

• Diagnostics and Status Information

• LIN Bus Short Circuit Protection to Supply and Ground

Protection and Diagnostics

• Overcurrent Detection

• Short Circuit Detection to GND and VBB

• Open LED Detection

• High Temperature Warning and Shutdown

• Retry Mode on Error Detection

Power Saving

• Sleep Mode Supply Current 10 mA

• Compliant with 14 V Automotive Systems

EMI Compatibility

• LIN Bus Integrated Slope Control

• EMC Reduced LED Modulation Mode

Quality

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

• These Devices are Pb−Free and are RoHS Compliant

MARKING

DIAGRAM

www.

onsemi.com

SOIC−14

D2 SUFFIX

CASE 751A

NCV7430−0

AWLYWWG

NCV7430 = Specific Device Code

A = Assembly Location

WL = Wafer Lot

Y = Year

WW = Work Week

G = Pb−Free Package

ANODE

VBIAS

VBB

LIN

GND

TST2

GND

LED3C

LED1C

LED2C

TST1

LED2R

LED1R

LED3R

PIN CONNECTIONS

NCV7430

Device Package Shipping

†

ORDERING INFORMATION

NCV7430D20G SOIC−14

(Pb−Free)

55 Units / Tube

NCV7430D20R2G SOIC−14

(Pb−Free)

3000 / 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.

NCV7430

www.onsemi.com

Table 2. PIN FUNCTION DESCRIPTION (14 LEAD SON Package)

Pin #

Label Pin Description

1 ANODE Anode input for LED fault detection

2 VBIAS Bias output for ballast transistor

3 VBB VBB (14 V) Supply Voltage

4 LIN LIN−bus connection

5 GND Supply GND

6 TST2 Test pin (ground pin)

7 GND Supply GND

8 LED3R Current program resistor to ground for LED3C

9 LED1R Current program resistor to ground for LED1C

10 LED2R Current program resistor to ground for LED2C

11 TST1 Test pin (float pin) (Note 1)

12 LED2C Channel 2 regulated current output to LED cathode

13 LED1C Channel 1 regulated current output to LED cathode

14 LED3C Channel 3 regulated current output to LED cathode

1. Floating pin 11 eliminates the possibility of a short to ground of the adjacent pin (LED2C).

Table 3. MAXIMUM RATINGS

Parameter Min Max Unit

Supply voltage −0.3 +43 (Note 2) V

Supply voltage −0.3 28 (Note 3) V

Vlin Bus input voltage (LIN) −45 +45 V

VVBIAS Ballast Transistor Drive Voltage Pin (VBIAS) −0.3 VANODE V

IBIAS Ballast Output Drive (VBIAS) − 10 mA

VANODE LED Fault Sense Pin (ANODE) voltage −0.3 VBB V

VLEDC LED Current Pin (LEDxC) voltage (Note 7) −0.3 VBB V

VLEDR Program Current Pin (LEDxR) voltage (Note 4) −0.3 3.6 V

Junction temperature range (Note 5) −50 +175 °C

Tflw Peak Reflow Soldering Temperature: Pb−Free

60 to 150 seconds at 217°C (Note 6)

− 260 peak

°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.

2. For limited time: t < 0.5 s.

3. t < 3 minutes

4. VLEDR cannot exceed VLEDC.

5. The circuit functionality is not fully guaranteed outside operating temperature range.

6. For additional information, see or download ON Semiconductor’s Soldering and Mounting Techniques Reference Manual, SOLDERRM/D,

and Application Note AND8003/D.

7. Capacitive loading on LEDxC pins is limited to < 200 pF for proper functionality.

Table 4. ATTRIBUTES

Characteristics Value

ESD Capability Human Body Model (LIN Pin)

(Note 8) Human Body Model (All Remaining Pins)

Machine Model

> ± 4 kV

> ± 2 kV

> ± 200 V

Moisture Sensitivity Level (Note 6) MSL 2

Storage Temperature −55°C to 150°C

Package Thermal Resistance

Junction−to−Ambient (R

) (2S2P) (Note 9)

Junction−to−Pin (R

) (Pins 4 & 11)

100°K/W

53°K/W

Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test

8. HBM according to AEC−Q100: EIA−JESD22−A114−B (100 pF via 1.5 kW) and MM according to AEC−Q100: EIA−JESD22−A115−A.

9. Simulated conform JEDEC JESD51

NCV7430

www.onsemi.com

Table 5. ELECTRICAL CHARACTERISTICS (5.5 V < V

< 18 V, −40°C < T

< 125°C, R

sense

= 10 W TWPROG = TWPROG2 =

0, unless otherwise specified).

Symbol

Pin(s) Characteristic Conditions Min Typ Max Unit

LED DRIVER

LEDmax

LED1C

LED2C

LED3C

Single LED current in nor-

mal operation

= 14 V

For individual LED driven

− − 32 mA

LEDmaxTotal

All LED currents in normal

operation

= 14 V

For all LEDs driven

− − 96 mA

LEDxC

LED current Uncalibrated Max ON Duty

Cycle

SENSE

= 10 W

SENSE

= 100 W

2.8

30.5

3.05

3.2

MSabs

Absolute error on LED

current

Calibrated

= 14 V,

3 mA < I

LEDxC

< 30 mA

SENSE

= 10 W

SENSE

= 100 W

−1

−3

−

Vref1

Reference voltage for cur-

rent regulators (High)

state

= 14 V − 325 −

Vref2

Reference voltage for cur-

rent regulators (Low) state

= 14 V − 20 −

LIN TRANSMITTER

bus_off

LIN

Dominant state, driver off V

linbus

= 0 V,

= 8 V & 18 V

−1 − − mA

bus_off

Recessive state, driver off V

linbus

= V

bat

= 8 V & 18 V

− − 20

bus_lim

Current limitation V

= 8 V & 18 V 40 75 200 mA

slave

Pull−up resistance V

= 8 V & 18 V 20 30 47

LIN RECEIVER

bus_dom

LIN

Receiver dominant state V

= 8 V & 18 V 0 − 0.4 * V

bus_rec

Receiver recessive state V

= 8 V & 18 V 0.6 * V

− V

bus_hys

Receiver hysteresis V

= 8 V & 18 V 0.05 * V

− 0.175 * V

Vrec_th_wake LIN wake−up threshold V

= 8 V & 18 V V

− 1.1 − V

− 3.3 V

THERMAL WARNING & SHUTDOWN

Thermal warning

(Notes 10, 11)

107 115 123 °C

twhyst

Thermal warning hyster-

esis

− 10 −

tsd

Thermal shutdown

(Note 10)

147 155 163 °C

THERMAL CONTROL

TH_Ired_step

LED Drive Current change

at Thermal Warning

−

−6.25

− %

per

step

VBIAS OUTPUT

bias

Output voltage

= 14 V, I

bias

= 5 mA 7.3 − 8.3 V

VBB SUPPLY

VBB_UV

VBB Undervoltage

for LIN Communication

5.40 5.8 6.0 V

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

10.Parameter guaranteed by trimming in production test.

11. No more than 2000 cumulative hours in life time above Tw.

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