ON Semiconductor NCV8184 Technical data

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NCV8184

Micropower 70 mA Low Dropout Tracking Regulator/Line Driver

The NCV8184 is a monolithic integrated low dropout tracking

voltage regulator designed to provide an adjustable buffered output voltage that closely tracks (±5.0 mV) the reference input.

The part can be used in automotive applications with remote sensors, or any situation where it is necessary to isolate the output of your regulator.

The NCV8184 also enables the user to bestow a quick upgrade to their module when added current is needed, and the existing regulator cannot provide.

The versatility of this part also enables it to be used as a high−side driver.

Features

• 70 mA Source Capability

• Output Tracks within ±5.0 mV

• Low Input Voltage Tracking Performance

(Works Down to V

• Low Dropout (0.35 V Typ. @ 50 mA)

• Low Quiescent Current

• Thermal Shutdown

• Wide Operating Range

• Internally Fused Leads in SO−8 Package

• NCV Prefix, for Automotive and Other Applications Requiring Site

and Change Control

V

IN

REF

= 2.1 V)

Current Limit &

Saturation Sense

V

OUT

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8

1

5

D SUFFIX

CASE 751

DT SUFFIX

CASE 175AA

PIN CONNECTIONS AND

MARKING DIAGRAM

1

V

OUT

8184

ALYWW

1

A = Assembly Location L = Wafer Lot Y = Year WW, W = Work Week

ALYW

8184

Pin 1. V

Tab, 3. GND

8

SO−8

DPAK

5−LEAD

V

IN

GNDGND GNDGND V

REF

IN

2. V

OUT

4. Adj

5. V

REF

/ENABLEAdj

/ENABLE

− +

BIAS

Thermal

Shutdown

V

REF

Adj

/ENABLE

Figure 1. Block Diagram

 Semiconductor Components Industries, LLC, 2004

August, 2004 − Rev. 15

ORDERING INFORMATION

Device Package Shipping

GND

1 Publication Order Number:

NCV8184D SO−8 95 Units/Rail NCV8184DR2 SO−8

NCV8184DT DPAK NCV8184DTRK DPAK 2500 Tape & Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.

2500 Tape & Reel

50 Units/Rail

†

NCV8184/D

NCV8184

MAXIMUM RATINGS

Rating Value Unit

Storage Temperature −65 to 150 °C Supply Voltage Range (continuous) −15 to 42 V Supply Voltage Operating Range 4.0 to 42 V Peak Transient Voltage (VIN = 14 V, Load Dump Transient = 28 V) 42 V Voltage Range (V Voltage Range (V Maximum Junction Temperature 150 °C ESD Capability Human Body Model

, Adj) −3.0 to 42 V

OUT

/ENABLE) −0.3 to 42 V

REF

2.5

Machine Model

200

kV

V

Lead Temperature Soldering: Reflow: (SMD styles only) (Note 1) 240 peak

°C

(Note 2)

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously . If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.

1. 60 second maximum above 183°C.

2. −5°C / +0°C Allowable Conditions

THERMAL CHARACTERISTICS

See Package Thermal Data Section (Page 8)

ELECTRICAL CHARACTERISTICS (V

= 1.0 mA; Adj = V

I

OUT

Parameter

Regular Output

V

/ENABLE − V

REF

V

Tracking Error

OUT

Dropout Voltage (VIN − V

Line Regulation 6.0 V ≤ VIN ≤ 26 V, V Load Regulation 100 A ≤ I Adj Input Bias Current V Current Limit VIN = 14 V, V Quiescent Current (IIN − I

Ripple Rejection f = 120 Hz, I Thermal Shutdown Guaranteed by Design 150 180 210 °C

V

/ENABLE

REF

Enable Voltage − 0.8 − 2.1 V Input Bias Current V

OUT

; C

OUT

OUT−ESR

= 1.0 , unless otherwise specified.)

6.0 V ≤ VIN ≤ 26 V, 100 A ≤ I

2.1 V ≤ V V

= 12 V, I

IN

) I

OUT

I

OUT

I

OUT

REF

) VIN = 12 V, I

V

= 12 V, I

IN

V

= 12 V, V

IN

REF

= 14 V; V

IN

/ENABLE > 2.1 V; −40°C < TJ < +125°C; C

REF

= 1.0 F;

OUT

Test Conditions Min Typ Max Unit

/ENABLE ≤ (VIN − 600 mV)

REF

= 5.0 mA, V

OUT

= 100 A = 5.0 mA = 50 mA

REF

≤ 50 mA, V

OUT

≤ 50 mA

OUT

/ENABLE = 5.0 V

REF

/ENABLE = 5.0 V − − 10 mV

REF

−10

−5.0

−

100 250 350

10

5.0

150 500 600

/ENABLE = 5.0 V − 0.2 1.0 A

/ENABLE = 5.0 V, V

REF

= 50 mA

OUT

= 100 A

OUT

/ENABLE = 0 V

REF

= 50 mA, 6.0 V ≤ VIN ≤ 26 V 60 − − dB

OUT

= 90% of Adj 70 − 400 mA

OUT

−

5.0 50

7.0 70

−

20

/ENABLE = 5.0 V − 0.2 1.0 A

mV

mV mV

mA

A A

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PACKAGE PIN DESCRIPTION

Package Lead Number

SO−8 DPAK, 5−LEAD

8 1 V 1 2 V

2, 3, 6, 7 Tab, 3 GND Ground.

4 4 Adj Adjust lead, noninverting input. 5 5 V

Lead Symbol Function

IN

OUT

/ENABLE Reference voltage and ENABLE input.

REF

NCV8184

Battery supply input voltage. Regulated output.

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NCV8184

TYPICAL PERFORMANCE CHARACTERISTICS

0.4

0.3

0.2

0.1

0.0

−0.1

TRACKING ERROR (mV)

−0.2

−0.3

−20 1200 20 40 60 80 100

−40

Figure 2. Tracking Error vs. Temperature

50 45 40 35 30 25

ESR ()

20 15 10

5 0

0

C2 = 10 F

C2 = 0.1 F

10 20 30 40 70

OUTPUT CURRENT (mA)

TEMPERATURE (°C)

Unstable Region

Stable Region

V

OUT

= 5.0 V

6050

1.0

0.8

0.6

0.4

0.2

0.0

−0.2

TRACKING ERROR (mV)

−0.4

−0.6 0

20 30 5040 60 70

10

OUTPUT CURRENT (mA)

Figure 3. Tracking Error vs. Output Current

4.0

3.5

3.0

2.5

2.0

ESR ()

1.5

1.0

Data is for 0.1 F only. Capacitor values 0.5 F and above do not

0.5

exhibit instability with low ESR.

0.0 0

10 20 30 40 70

OUTPUT CURRENT (mA)

−40°C

+25°C

+125°C

Unstable Region

Stable Region

C2 = 0.1 F V

OUT

= 5.0 V

6050

Figure 4. Output Stability with Capacitor Change Figure 5. Output Stability with 0.1 F at Low ESR

12

10

8

6

4

2

QUIESCENT CURRENT (mA)

0

10 20 30 40 50 60 70

0

OUTPUT CURRENT (mA)

+125°C

+25°C

−40°C

2.5

2

I

= 20 mA

1.5

1

0.5

QUIESCENT CURRENT (mA)

0

OUT

I

= 1 mA

OUT

510 2515 20

INPUT VOLTAGE (V)

V

/ ENABLE = 5.0 V

REF

Figure 6. Quiescent Current vs. Output Current Figure 7. Quiescent Current vs. Input Voltage

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NCV8184

TYPICAL PERFORMANCE CHARACTERISTICS

0.5

0.4

0.3

0.2

DROPOUT VOLTAGE (V)

0.1

0.0

+25°C

0

10

20 30 5040 60 70

OUTPUT CURRENT (mA)

+125°C

−40°C

Figure 8. Dropout Voltage vs. Output Current

7

6

5

4

6

5

(V)

OUT

4

+25°C

3

2

1

OUTPUT VOLTAGE V

0

+125°C

−40°C 5101520

INPUT VOLTAGE V

V

/ENABLE = 5.0 V

REF

(V)

IN

Figure 9. Output Voltage vs. Input Voltage

0.7

0.6

0.5

0.4

25

30

3

2

OUTPUT VOLTAGE (V)

1

0

01

234567

REFERENCE VOLTAGE (V)

Figure 10. Output Voltage vs. Reference Voltage

120 115 110

, (°C/W)

105

JA



100

95 90

TO AMBIENT, R

85

THERMAL RESISTANCE, JUNCTION

80

0

1234 65

0.3

0.2

REFERENCE CURRENT (A)

0.1

0.0

COPPER AREA (in2)

01234567

REFERENCE VOLTAGE (V)

Figure 11. Reference Current vs. Reference

Voltage

Figure 12. SO−8, JA as a Function of the Pad

Copper Area (2.0 oz. Cu Thickness),

Board Material = 0.0625 G−10/R−4

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