KA317HV - Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.0

Features

• Output Current In Excess of 1. 5A

• Output Adjustable Between 1. 2V and 57V

• Internal Thermal Overload Protection

• Internal Short Circuit Curr ent L imitin g

• Output T r ansistor Safe Area Compensation

• TO-220 Package

Description

This monolithic integrated circuit is an adjustable 3-terminal

positive voltage regulator designed to supply more than 1.5A

of load current with an output voltage adjustable over a 1.2

to 57V. It employs internal current limiting, thermal shut

down and safe area compensation.

TO-220

1. Adj 2. Output 3. Input

Internal Block Diagram

Rlimit

3Vin

Voltage

Reference

Vad

Protection

Circuitry

Input

Output

KA317HV

3-Terminal Positive Adjustable Regulator

KA317HV

Absolute Maximum Ratings

Electrical Characteristics

(VI-VO=5V, IO= 0.5A, 0°C ≤ TJ ≤ + 125°C, IMAX = 1.5A, PDMAX =20W, unless otherwise specified)

Note :

1. Load and line regulation are specified at constant junction temperature. Change in VD due to heat ing eff ects mus t be tak en

into account separately. Pulse testing with low duty is used. (PMAX = 20W)

2. CADJ, when used, is connected between the adjustment pin and ground.

Parameter Symbol Value Unit

Input-Output Voltage Differential VI - VO60 V

Lead Temperature TLEAD 230 °C

Power Dissipation PDInternally limited W

Operating Junction Temperature Range Tj0 ~ +125 °C

Storage Temperature Range TSTG -65 ~+125 °C

Temperature Coefficient of Output Voltage ∆Vo/∆T ±0.02 %/°C

Parameter Symbol Conditions Min Typ. Max. Unit

Line Regulation (Note1) Rline TA = +25°C

3V ≤ VI - VO ≤ 60V - 0.01 0.04 %/V

3V ≤ VI - VO ≤ 60V - 0.02 0.07 %/V

Load Regulation (Note1) Rload

TA = +25°C, 10mA ≤IO ≤ IMAX

VO< 5V

VO ≥ 5V -18

0.4 25

0.5

%/VO

10mA ≤ IO ≤ IMAX

VO < 5V

VO ≥ 5V -40

0.8 70

1.5

%/VO

Adjustable Pin Current IADJ - - 46 100 µA

Adjustable Pin Current Change ∆IADJ 3V ≤ VI - VO ≤ 60V

10mA ≤ IO ≤ IMAX

PD ≤ PMAX -2.05 µA

Reference Voltage VREF 3V ≤ VIN - VO ≤ 60V

10mA ≤ IO ≤ IMAX

PD ≤ PMAX 1.20 1.25 1.30 V

Temperature Stability STT--0.7-%/V

Minimum Load Current to Maintain

Regulation IL(MIN) VI - VO = 60V - 3.5 12 mA

Maximum Output Current IO(MAX) VI - VO ≤ 15V, PD ≤ PMAX

VI - VO ≤ 60V, PD ≤ PMAX

TA=25°C1.0 2.2

0.3 -A

RMS Noise, % of VOUT eNTA= +25°C, 10Hz ≤ f ≤ 10KHz - 0.003 0.01 %/VO

Ripple Rejection RR VO = 10V, f = 120Hz

without CADJ

CADJ = 10µF (Note2) 66 60

75 -dB

Long-Term Stability, TJ = THIGH ST TA = +25°C for end point

measurements, 1000HR -0.31 %

Thermal Resistance Junction to Case RθJC --5- °C/W

KA317HV

Typical Perfomance Characteristics

Figur e 1. Load Regul ation

Figure 3. Dropout Voltage

Figu re 2. Adjus t ment Curre nt

Figure 4. Referenc e Volta ge

TEMPERATURE (°C)

OUTPUT VOLTAGE DEVIATION(%)

TEMPERATURE (°C)

INPUT-OUTPUT DIFFERENTIAL(V)

TEMPERATURE (°C)

ADJUSTMENT CURRENT(uA)

TEMPERATURE (°C)

REFERENCE VOLTAGE(V)

KA317HV

Typical Application

Figure 5. Programmable Regulator

Ci is required when regulator is located an appreciable distance from power supply filter.

Co is not needed for stability, however, it does improve transient response.

Since IADJ is controlled to less than 100µA, the error associated with this term is negligible in most applications.

KA317

0. 1µ

µµ

µF

VI Vo

Vadj

Iadj

= 1.25V (1+ R2/ R1)+Iadj

Iadj

1µ

µµ

µF

Input Output

KA317HV

Mechanical Dimensions

Package

4.50 ±0.20

9.90 ±0.20

1.52 ±0.10

0.80 ±0.10 2.40 ±0.20

10.00 ±0.20

1.27 ±0.10

ø3.60 ±0.10

(8.70)

2.80 ±0.1015.90 ±0.20

10.08 ±0.30 18.95MAX.

(1.70)

(3.70)(3.00)

(1.46)

(1.00)

(45°)

9.20 ±0.2013.08 ±0.20

1.30 ±0.10

1.30 +0.10

–0.05

0.50 +0.10

–0.05

2.54TYP

[2.54 ±0.20]2.54TYP

[2.54 ±0.20]

TO-220

KA317HV

Ordering Information

Product Number Package Operating Temperature

KA317HV TO-220 0°C to + 125°C

KA317HV

6/1/01 0.0m 001

Stock#DSxxxxxxxx

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user.

2. A critical component in any component of a life support

device or syst em who se failure to perform can be

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Product Folder - Fairchild P/N KA317HV - 3-Terminal Positive Adjustable Regulator

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Contents

General description | Features | Product

status/pricing/packaging

General description

This monolithic integrated circuit is an

adjustable 3-terminal positive voltage regulator

designed to supply more than 1.5A of load

current with an output voltage adjustable over

a 1.2 to 57V. It employs internal current

limiting, thermal shut down and safe area

compensation.

Features

● Output Current In Excess of 1. 5A

● Output Adjustable Between 1. 2V and

57V

● Internal Thermal Overload Protection

● Internal Short Circuit Current Limiting

● Output Transistor Safe Area

Compensation

● TO-220 Package

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Datasheet

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Product status/pricing/packaging

Product Product status Package type Leads Packing method

KA317HVTU Full Production TO-220 3 RAIL

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