LT1082 Ver la hoja de datos (PDF) - Linear Technology

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LT1082

1A High Voltage/ Efficiency Switching Voltage Regulator

Linear Technology 

LT1082

ABSOLUTE AXI U RATI GS

Supply Voltage ....................................................... 75V

Switch Output Voltage .......................................... 100V

Feedback Pin Voltage (Transient, 1ms) ................ ±15V

Storage Temperature Range ................ – 65°C to 150°C

Lead Temperature (Soldering, 10 sec)................. 300°C

Operating Junction Temperature Range

LT1082M ......................................... – 55°C to 150°C

LT1082I ........................................... – 40°C to 125°C

LT1082C ............................................... 0°C to 100°C

PACKAGE/ORDER I FOR ATIO

TOP VIEW

GND 1

VC 2

FB 3

NC 4

8 E2

7 VSW

6 E1

5 VIN

J8 PACKAGE

N8 PACKAGE

8-LEAD CERAMIC DIP 8-LEAD PLASTIC DIP

TJMAX = 150°C, θJA = 100°C/W (MJ8)

TJMAX = 100°C, θJA = 90°C/W (CN8)

TJMAX = 125°C, θJA = 90°C/W (IN8)

ORDER PART NUMBER

LT1082MJ8

LT1082CN8

LT1082IN8

FRONT VIEW

5

VIN

4

VSW

3

GND

2

FB

1

VC

Q PACKAGE

5-LEAD DD

TJMAX = 100°C, θJA = 40°C/ W (CQ)

TJMAX = 125°C, θJA = 40°C/ W (IQ)

NOTE: θJA VARIES FROM 25°C/W TO 50°C/W

DEPENDING ON BOARD COMPOSITION.

ORDER PART NUMBER

LT1082CQ

LT1082IQ

FRONT VIEW

5

VIN

4

VSW

3

GND

2

FB

1

VC

T PACKAGE

5-LEAD TO-220

TJMAX = 100°C, θJA = 75°C/ W, θJC = 8°C/ W (CT)

TJMAX = 125°C, θJA = 75°C/ W, θJC = 8°C/ W (IT)

ORDER PART NUMBER

LT1082CT

LT1082IT

ELECTRICAL CHARACTERISTICS VIN = 15V, VC = 0.5V, VFB = VREF, output pin open, unless otherwise specified.

SYMBOL

VREF

IB

gm

AV

PARAMETER

Reference Voltage

Feedback Input Current

Error Amplifier

Transconductance

Error Amplifier Source or

Sink Current

Error Amplifier Clamp

Voltage

Reference Voltage Line Regulation

Error Amplifier Voltage Gain

Minimum Input Voltage

CONDITIONS

Measured at Feedback Pin

VC = 0.8V

VFB = VREF

∆IC = ±25µA

VC = 1.5V

Hi Clamp, VFB = 1V

Lo Clamp, VFB = 1.5V

3V ≤ VIN ≤ VMAX, VC = 0.8V

0.9V ≤ VC ≤ 1.4V

MIN TYP MAX UNITS

1.224 1.244 1.264

V

q 1.214 1.244 1.274

V

350 750

nA

q

1100

nA

3000 4400 6000

µmho

q 2400

7000

µmho

150 200 400

µA

q

120

400

µA

1.8

2.3

V

0.12 0.22 0.36

V

q

0.03

%/V

350 650

V/V

q

2.6 3.0

V

2

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