CS5101 datasheet(3/9 Pages) ONSEMI

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CS5101

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ELECTRICAL CHARACTERISTICS (−40°C ≤ TA ≤ 85°C, −40°C ≤ TJ ≤ 150°C, 10 V < VCC < 45 V, 8.0 V < VC < 75 V; unless

otherwise specified.)

Characteristic

Test Conditions

Min

Typ

Max

Unit

Error Amplifier

Input Voltage Initial Accuracy

VFB = VCOMP, VCC = 15 V, T = 25°C, Note 3

1.98

2.00

2.02

Input Voltage

VFB = VCOMP, includes line and temp

1.94

2.00

2.06

Input Bias Current

VFB = 0 V, IVFB flows out of pin

−

500

Open Loop Gain

1.5 V < VCOMP < 3.0 V

−

Unity Gain Bandwidth

1.5 V < VCOMP < 3.0 V, Note 3

0.7

1.0

−

MHz

Output Sink Current

VCOMP = 2.0 V, VFB = 2.2 V

2.0

8.0

−

Output Source Current

VCOMP = 2.0 V, VFB = 1.8 V

2.0

6.0

−

VCOMP High

VFB = 1.8 V

3.3

3.5

3.7

VCOMP Low

VFB = 2.2 V

0.85

1.0

1.15

PSRR

10 V < VCC < 45 V, VFB = VCOMP, Note 3

−

Voltage Reference

Output Voltage Initial Accuracy

VCC = 15 V, T = 25°C, Note 3

4.9

5.0

5.1

Output Voltage

0 A < IREF < 8.0 mA

4.8

5.0

5.2

Line Regulation

10 V < VCC < 45 V, IREF = 0 A

−

Load Regulation

0 A < IREF < 8.0 mA

−

Current Limit

VREF = 4.8 V

−

VREF−OK FAULT V

VSYNC = 5.0 V, VREF = VLOAD

4.10

4.40

4.60

VREF−OK V

VSYNC = 5.0 V, VREF = VLOAD

4.30

4.50

4.80

VREF−OK Hysteresis

−

100

250

Current Sense Amplifier

IS COMP High V

IS+ = 5.0 V, IS− = IS COMP

4.7

5.0

5.3

IS COMP Low V

IS+ = 0 V, IS− = IS COMP

0.5

1.0

1.3

Source Current

IS+ = 5.0 V, IS− = 0 V

2.0

−

Sink Current

IS− = 5.0 V, IS+ = 0 V

−

Open Loop Gain

1.5 V ≤ VCOMP ≤ 4.5 V, RL = 4.0 kW

−

CMRR

Note 3

−

PSRR

10 V < VCC < 45 V, Note 3

−

Unity Gain Bandwidth

1.5 V ≤ VCOMP ≤ 4.5 V, RL = 4.0 kW, Note 3

0.5

0.8

−

MHz

Input Offset Voltage

VIS+ = 2.5 V, VIS− = VISCOMP

−8.0

8.0

Input Bias Currents

VIS+ = VIS− = 0 V, IIS flows out of pins

−

250

Input Offset Current (IS+, IS−)

−

−250

250

Input Signal Voltage Range

Note 3

−0.3

−

VCC − 4.0

RAMP/SYNC Generator

RAMP Source Current Initial Accuracy

VSYNC = 5.0 V, VRAMP = 2.5 V, T = 25°C, Note 3

0.18

0.20

0.22

RAMP Source Current

VSYNC = 5.0 V, VRAMP = 2.5 V

0.16

0.20

0.24

RAMP Sink Current

VSYNC = 0 V, VRAMP = 2.5 V

1.0

4.0

−

RAMP Peak Voltage

VSYNC = 5.0 V

3.3

3.5

3.7

RAMP Valley Voltage

VSYNC = 0 V

1.4

1.5

1.6

RAMP Dynamic Range

VRAMPDR = VRAMPPK − VRAMPVY

1.7

2.0

2.3

RAMP Sleep Threshold Voltage

VRAMP @ VREF < 2.0 V

0.3

0.6

1.0

SYNC Threshold

VSYNC @ VRAMP > 2.5 V

2.3

2.5

2.7

SYNC Input Bias Current

VSYNC = 0 V, ISYNC flows out of pin

−

1.0

3. Guaranteed by design. Not 100% tested in production.

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