LT1246CS8 datasheet(5/12 Pages) LINER

номер детали	LT1246CS8

подробное описание детали	1MHz Off-Line Current Mode PWM and DC/DC Converter

PDF	12 Pages

Scroll/Zoom	100%

производитель	LINER [Linear Technology]

домашняя страница	http://www.linear.com

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5 / 12 page

LT1246/LT1247

HARA TERISTICS

TYPICALPERFOR

High Level Output

Feedback Pin Input Voltage

Current Sense Clamp Voltage

Saturation Voltage

Low Level Output

Low Level Output Saturation Voltage

Supply Current vs

Saturation Voltage

During Undervoltage Lockout

Oscillator Frequency

OUTPUT SOURCE CURRENT (mA)

4.0

200

LT1246 • TPC12

0.5

2.0

2.5

1.0

1.5

3.0

3.5

TJ = –55°C

TJ = 25°C

TJ = 125°C

100

Error Amplifier Open-Loop Gain

and Phase

Current Sense Input Threshold

TEMPERATURE (

°C)

–50

2.45

2.55

– 25

125

LT1246 • TPC10

100

2.46

2.50

2.51

2.47

2.48

2.49

2.52

2.53

2.54

TEMPERATURE (

°C)

–50

0.95

1.05

– 25

125

LT1246 • TPC11

100

0.96

1.00

1.01

0.97

0.98

0.99

1.02

1.03

1.04

OSCILLATOR FREQUENCY (Hz)

10k

100k

LT1246 • TPC15

OUTPUT SINK CURRENT (mA)

4.0

510

LT1246 • TPC14

2.0

0.5

1.0

1.5

2.5

3.0

3.5

TJ = 125°C

TJ = –55°C

TJ = 25°C

OUTPUT SINK CURRENT (mA)

1.0

100

200

LT1246 • TPC13

TJ = –55°C

TJ = 25°C

TJ = 125°C

0.5

FREQUENCY (Hz)

–20

100

10k

10M

LT1246 • TPC16

100

100k

PHASE

GAIN

180

–45

225

135

ERROR AMP OUTPUT VOLTAGE (V)

1.2

LT1246 • TPC17

0.6

0.2

0.4

0.8

1.0

TJ = –55°C

TJ = 25°C

TJ =125°C

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