UC3843AD datasheet(5/14 Pages) ONSEMI

部品番号	UC3843AD

部品情報	HIGH PERFORMANCE CURRENT MODE CONTROLLERS

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UC3842A, 43A UC2842A, 43A

5

MOTOROLA ANALOG IC DEVICE DATA

Figure 7. Error Amp Open Loop Gain and

Phase versus Frequency

Figure 8. Current Sense Input Threshold

versus Error Amp Output Voltage

Figure 9. Reference Voltage Change

versus Source Current

Figure 10. Reference Short Circuit Current

versus Temperature

Figure 11. Reference Load Regulation

Figure 12. Reference Line Regulation

2.0 ms/DIV

VCC = 12 V to 25 V

TA = 25°C

0

20

40

60

80

100

120

Iref, REFERENCE SOURCE CURRENT (mA)

VCC = 15 V

TA = 55°C

TA = 125°C

–55

–25

0

25

50

75

100

125

TA, AMBIENT TEMPERATURE (°C)

VCC = 15 V

RL ≤ 0.1 Ω

VCC = 15 V

IO = 1.0 mA to 20 mA

TA = 25°C

0

–4.0

–8.0

–12

–16

–20

–24

110

90

70

50

TA = 25°C

–20

10 M

10

f, FREQUENCY (Hz)

Gain

Phase

VCC = 15 V

VO = 2.0 V to 4.0 V

RL = 100 K

TA = 25°C

0

30

60

90

120

150

180

100

1.0 k

10 k

100 k

1.0 M

0

20

40

60

80

100

0

VO, ERROR AMP OUTPUT VOLTAGE (V)

0

0.2

0.4

0.6

0.8

1.0

1.2

2.0

4.0

6.0

8.0

VCC = 15 V

TA = 25°C

TA = –55°C

TA = 125°C

同様の部品番号 - UC3843AD

メーカー	部品番号	データシート	部品情報
Motorola, Inc	UC3843AD	399Kb / 14P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Texas Instruments	UC3843AD	517Kb / 11P	[Old version datasheet] Current Mode PWM Controller
Fairchild Semiconductor	UC3843AD	42Kb / 8P	SMPS Controller
Microsemi Corporation	UC3843AD	227Kb / 8P	CURRENT MODE PWM CONTROLLER
ON Semiconductor	UC3843AD	359Kb / 18P	High Performance Current Mode Controllers November, 2005 ??Rev. 8

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