CS5166 datasheet(4/22 Pages) CHERRY

Part #	CS5166

Description	5-Bit Synchronous CPU Controller with Power-Good and Current Limit

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Manufacturer	CHERRY [Cherry Semiconductor Corporation]

Direct Link	http://www.cherrycorp.com/

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4

Electrical Characteristics: 0˚C < TA < 70˚C; 0˚C < TJ < 125˚C; 8V < VCC < 14V; 2.0V DAC Code

(VID4 = VID3 = VID2 = VID1 =0, VID0 = 1), CGATE(H) = CGATE(L) = 3.3nF, COFF = 330pF, CSS= 0.1µF; Unless otherwise stated.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

s

Fault Protection continued

SS Comp Clamp Voltage

VFB = 2.7V, VSS = 0V

0.50

0.95

1.10

V

VFB Low Comparator

Increase VFB till normal off-time

0.9

1.0

1.1

V

s

PWM Comparator

Transient Response

VFB = 1.2V to 5V 500ns after GATE(H)

115

175

ns

(after Blanking time) to

GATE(H) = (VCC – 1V)

to 1V

Minimum Pulse Width

Drive VFB 1.2V to 5V upon GATE(H)

100

200

300

ns

(Blanking Time)

rising edge (> VCC – 1V), measure

GATE(H) pulse width

s

COFF

Normal Off-Time

VFB = 2.7V

1.0

1.6

2.3

µs

Extended Off-Time

VSS = VFB = 0V

5.0

8.0

12.0

µs

s

Time-Out Timer

Time-Out Time

VFB = 2.7V, Measure GATE(H)

10

30

50

µs

Pulse Width

Fault Duty Cycle

VFB = 0V

30

50

70

%

s

Voltage Identification DAC

Accuracy (all codes except 11111) Measure VFB = COMP, (COFF = Gnd)

-1.0

1.0

%

VID4 VID3 VID2 VID1VID0

25˚C ≤ TJ ≤ 125˚C, VCC = 12V

1

0

3.489

3.525

3.560

V

1

0

1

3.390

3.425

3.459

V

1

0

1

0

3.291

3.325

3.358

V

1

0

1

3.192

3.225

3.257

V

1

0

1

0

3.093

3.125

3.156

V

1

0

1

0

1

2.994

3.025

3.055

V

1

0

1

0

2.895

2.925

2.954

V

1

0

1

2.796

2.825

2.853

V

1

0

2.697

2.725

2.752

V

1

0

1

2.598

2.625

2.651

V

1

0

1

0

2.499

2.525

2.550

V

1

0

1

2.400

2.425

2.449

V

1

0

2.301

2.325

2.348

V

1

0

1

2.202

2.225

2.247

V

1

0

2.103

2.125

2.146

V

0

2.054

2.075

2.095

V

0

1

2.004

2.025

2.045

V

0

1

0

1.955

1.975

1.994

V

0

1

1.905

1.925

1.944

V

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