ON Semiconductor NCV4263-2C User Manual

NCV4263-2C

LDO Regulator - Enable,

Reset, Watchdog

200 mA

The NCV4263−2C is a 200 mA LDO regulator with integrated reset watchdog functions dedicated for microprocessor applications. Its robustness allows NCV4263−2C to be used in severe automotive environments. The Enable function can be used for decrease of quiescent current down to max 10 mA. The NCV4263−2C contains protection functions as current limit, thermal shutdown and reverse output current protection. The regulator provides also Watchdog, Reset function with adjustable Threshold and adjustable Power−on Reset Delay Time.

Features

• Output Voltage Option: 5 V

• Output Voltage Accuracy: ±2%

• Output Current up to 200 mA

• Very Low Dropout Voltage

• Enable Function (10 mA Max Quiescent Current when Disabled)

• Microprocessor Compatible Control Functions:

− Reset with Adjustable Threshold and Adjustable Power−on Delay

− Watchdog Function

• Wide Input Voltage Operation Range: up to 40 V

• Protection Features:

− Current Limitation

− Thermal Shutdown

− Reverse Output Current

• AEC−Q100 Grade 1 Qualified and PPAP Capable

• These are Pb−Free Devices

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MARKING

DIAGRAMS

8

1

14

1

(Note: Microdot may be in either location)

See detailed ordering and shipping information on page 12 of this data sheet.

SOIC−8 EP PD SUFFIX

CASE 751AC

14

SOIC−14

D SUFFIX

CASE 751A

A = Assembly Location L, WL = Wafer Lot Y = Year W, WW = Work Week G = Pb−Free Package

ORDERING INFORMATION

V632C5

ALYWX

1

NCV4263−2C50G

AWLYWWG

1

Typical Applications

• Body Control Module

• Instruments and Clusters

• Occupant Protection and Comfort

• Powertrain

V

in

100 nF

OFF

ON

*−optional if Reset function is needed

September, 2019 − Rev. 1

V

C

in

NCV4263−2C

EN

Figure 1. Application Schematic

in

GND

V

out

RADJ

RO

WDI

D

C

out

22 mF

C

100 nF

D

RRO*

5.6 kW

V

DD

Microprocessor

RESET I/O

1 Publication Order Number:

NCV4263−2C/D

NCV4263−2C

V

EN

GND

V

in

VOLTAGE

REFERENCE

V

REF

SP

ENABLE

out

RO

WDI

RESET

SATURATION

PROTECTION

THERMAL

SHUTDOWN

SP

TSD

V

REF

GENERATOR

and

WATCHDOG

D

RADJ

Figure 2. Simplified Block Diagram

114

18

Vin

EN

RO

GND

SOIC−8 EP

Vout

WDI

RADJ

D

RO

NC

GND

GND GND

GND

D

RADJ

EN

Vin

GND

Vout

WDI

SOIC−14

Figure 3. Pin Connections

(Top View)

PIN FUNCTION DESCRIPTION

Pin No.

SO−8 EP

1 13 V

2 14 EN Enable Input. Low level disables the chip. Connect to Vin if this function is not needed.

3 1 RO

4

5 6 D

6 7 RADJ

7 8 WDI

8 9 V

EPAD −

− 2 NC Not connected. No internally bonded.

Pin No.

SO−14

3, 4, 5,

10, 11, 12

Pin Name Description

in

Positive Power Supply. Connect ceramic capacitor to ground.

Reset Output; Open Collector connected to the V leave open if the function is not needed

via an internal 30 kW pull−up resistor;

out

GND Power Supply Ground. Connect pins to heat sink area with GND potential.

DelayTiming. Connect to GND via ceramic capacitor for adjusting reset delay timing and watchdog trigger time or leave open if this function is not needed.

Reset Adjust Threshold. Connect to GND (VRT = 93% of V adjust the reset threshold.

) or to output voltage divider to

out

Watchdog Input. Rising edge triggered Input for watchdog pulses. Connect to GND if this function is not needed.

out

Exposed

Pad

Regulated Output Voltage. Connect a C

Connect to ground potential or leave unconnected.

≥ 22 mF capacitor to ground.

out

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2

NCV4263−2C

ABSOLUTE MAXIMUM RATINGS

Rating Symbol Min Max Unit

Input Voltage (Note 1) V

Enable Input V

Output Voltage V

Reset Output Voltage V

Watchdog Input Voltage V

Reset Adjust Threshold V

Delay Timing Output Voltage V

Maximum Junction Temperature T

Storage Temperature T

in

EN

out

RO

WDI

RADJ

D

J

STG

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.

1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

ESD CAPABILITY (Note 2)

Rating Symbol Min Max Unit

ESD Capability, Human Body Model ESD

ESD Capability, Charged Device Model ESD

2. 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 Charged Device Model tested per AEC−Q100−011 (EIA/JESD22−C101)

HBM

CDM

−42 45 V

−1 7 V

−0.3 7 V

−40 150 °C

−55 150 °C

− 2 kV

− 1 kV

LEAD SOLDERING TEMPERATURE AND MSL (Note 3)

Rating

Moisture Sensitivity Level

SOIC−14 SOIC−8 EP

Lead Temperature Soldering

Reflow (SMD Styles Only), Pb−Free Versions

3. For more information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D

Symbol Min Max Unit

MSL

1 2

T

SLD

− 265 peak

THERMAL CHARACTERISTICS

Rating Symbol Value Unit

Thermal Characteristics, SOIC−8 Exposed Pad (Note 4)

Thermal Resistance, Junction−to−Air (Note 5) Thermal Reference, Junction−to−Pad (Note 5)

Y

R

θJA

ψJPad

65.1

8.7

Thermal Characteristics, SOIC−14 (Note 4)

Thermal Resistance, Junction−to−Air (Note 5) Thermal Reference, Junction−to−Pin4 (Note 5)

4. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

5. Values based on copper area of 645 mm

2

(or 1 in2) of 1 oz copper thickness and FR4 PCB substrate.

Y

R

θJA

ψJP4

94.8

18.3

OPERATING RANGES (Note 6)

Rating

Input Voltage V

Junction Temperature T

6. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

Symbol Min Max Unit

in

J

5.5 40 V

−40 150 °C

−

°C

°C/W

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NCV4263−2C

ELECTRICAL CHARACTERISTICS V

f

= 1 kHz. Min and Max values are valid for temperature range *40°C v TJ v 150°C unless otherwise noted and are guaranteed by

WDI

test design or statistical correlation. Typical values are referenced to T

Parameter

= 13.5 V, VEN = 5 V, Cin = 100 nF, C

in

= 25°C. (Notes 7 and 8)

J

Test Conditions Symbol Min Typ Max Unit

= 22 mF, ESR = 1.5 W, WDI = 5 V pulses,

out

REGULATOR OUTPUT

Output Voltage Accuracy

Line Regulation I

Load Regulation I

Dropout Voltage (Note 9) I

Vin = 6 V to 40 V, I

= 150 mA, Vin = 6 V to 28 V Reg

out

= 5 mA to 150 mA Reg

out

= 150 mA V

out

= 5 to 150 mA V

out

DO

line

load

4.90 5.0 5.10 V

−25 3 25 mV

−25 − 25 mV

− 300 500 mV

DISABLE AND QUIESCENT CURRENTS

Disable Current

Quiescent Current, Iq = Iin − I

out

VEN = 0 V,TJ < 125°C I

I

= 0 mA

out

I

= 150 mA

out

I

= 150 mA, Vin = 4.5 V

out

DIS

I

q

− 0.066 10

−

0.275

−

3

11.3

1.3 18 23

mA

CURRENT LIMIT PROTECTION

Current Limit

= 0.96 x V

out

out_nom

I

LIM

200 418 500 mA

V

PSRR

Power Supply Ripple Rejection (Note 10)

f = 100 Hz, 0.5 V

p−p

PSRR − 80 − dB

ENABLE

Enable Input Threshold Voltage

Logic High Logic Low

V

w 0.9 x V

out

V

v 0.1 V

out

out_nom

V

Enable Input Current VEN = 5 V I

th(EN)

EN

−

0.8

2.0

1.74

5 10 25

3.5

−

V

mA

WATCHDOG INPUT

Watchdog Input Low Time

CD = 100 nF, V

Watchdog Trigger Time CD = 100 nF, V

> VRT, no WDI signal t

out

> VRT, no WDI signal t

out

WL

WTT

1 2 3.5 ms

16 20.8 27 ms

DELAY TIMING

Charge Current

VD = 1 V, no WDI signal I

Discharge Current VD = 1 V, no WDI signal I

Saturation Voltage V

< VRT, no WDI signal V

out

Switching Threshold

Upper Lower

D_charge

D_disch

D_sat

V

thH(D)

V

thL(D)

40 66.8 95

4.40 6.54 9.40

− 6 100 mV

1.45

0.2

1.70

0.34

2.05

0.55

mA

V

RESET OUTPUT

V

Output Voltage Reset Threshold (Note 11)

Reset Adjust Threshold (70% of V

decreasing, V

out

out_nom

Reset Adjustment Range (Note 12) V

Reset Output Low Voltage IRO = 1 mA V

Reset Delay Time CD = 100 nF t

= 0 V V

RADJ

) v V

< (VRT) V

out

RT

th(RADJ)

RT_range

ROL

RD

90 93 96 % V

1.26 1.36 1.44 V

70 − 93 % V

− 0.01 0.4 V

1.3 2.6 4.1 ms

out

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.

7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.

8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

9. Measured when output voltage falls 100 mV below the regulated voltage at V

10.Values based on design and/or characterization.

= 13.5 V.

in

[TJ. Low duty

A

11.See APPLICATION INFORMATION section for Reset Threshold Adjustment

12.V

limits are guaranteed by VRT and V

RT_range

th(RADJ)

parameters.

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4

NCV4263−2C

ELECTRICAL CHARACTERISTICS V

f

= 1 kHz. Min and Max values are valid for temperature range *40°C v TJ v 150°C unless otherwise noted and are guaranteed by

WDI

test design or statistical correlation. Typical values are referenced to T

= 13.5 V, VEN = 5 V, Cin = 100 nF, C

in

= 25°C. (Notes 7 and 8)

J

= 22 mF, ESR = 1.5 W, WDI = 5 V pulses,

out

Parameter UnitMaxTypMinSymbolTest Conditions

RESET OUTPUT

Reset Reaction Time

CD = 100 nF t

RR

0.5 1.2 4

ms

THERMAL SHUTDOWN

Thermal Shutdown Temperature (Note 10)

I

= 1 mA T

out

SD

150 177 195 °C

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.

7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.

8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

9. Measured when output voltage falls 100 mV below the regulated voltage at V

10.Values based on design and/or characterization.

= 13.5 V.

in

[TJ. Low duty

A

11.See APPLICATION INFORMATION section for Reset Threshold Adjustment

12.V

limits are guaranteed by VRT and V

RT_range

th(RADJ)

parameters.

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