UC3842BVN datasheet(6/16 Pages) MOTOROLA

Part #	UC3842BVN

Description	HIGH PERFORMANCE CURRENT MODE CONTROLLERS

Download	16 Pages

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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6 / 16 page

UC3842B, 43B UC2842B, 43B

6

MOTOROLA ANALOG IC DEVICE DATA

Sink Saturation

(Load to VCC)

TA = – 55°C

VCC

Source Saturation

(Load to Ground)

0

800

0

IO, OUTPUT LOAD CURRENT (mA)

200

400

600

1.0

2.0

3.0

– 2.0

–1.0

0

TA = – 55°C

Figure 11. Reference Load Regulation

Figure 12. Reference Line Regulation

Figure 13. Output Saturation Voltage

versus Load Current

Figure 14. Output Waveform

Figure 15. Output Cross Conduction

Figure 16. Supply Current versus Supply Voltage

TA = 25°C

RT = 10 k

CT = 3.3 nF

VFB = 0 V

ISense = 0 V

TA = 25°C

0

VCC, SUPPLY VOLTAGE (V)

10

20

30

40

5

10

15

20

25

TA = 25°C

Gnd

VCC = 15 V

80

µs Pulsed Load

120 Hz Rate

2.0 ms/DIV

VCC = 15 V

IO = 1.0 mA to 20 mA

TA = 25°C

VCC = 12 V to 25

TA = 25°C

VCC = 30 V

CL = 15 pF

TA = 25°C

VCC = 15 V

CL = 1.0 nF

TA = 25°C

50 ns/DIV

100 ns/DIV

90%

10%

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