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CS5166GDWR16

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

Cherry semiconductor 

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

s Fault Protection continued

SS Comp Clamp Voltage

VFB Low Comparator

TEST CONDITIONS

VFB = 2.7V, VSS = 0V

Increase VFB till normal off-time

MIN

0.50

0.9

TYP

0.95

1.0

MAX

UNIT

1.10

V

1.1

V

s PWM Comparator

Transient Response

Minimum Pulse Width

(Blanking Time)

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

(after Blanking time) to

GATE(H) = (VCC – 1V)

to 1V

Drive VFB 1.2V to 5V upon GATE(H) 100

rising edge (> VCC – 1V), measure

GATE(H) pulse width

115

175

ns

200

300

ns

s COFF

Normal Off-Time

VFB = 2.7V

1.0

Extended Off-Time

VSS = VFB = 0V

5.0

s Time-Out Timer

Time-Out Time

Fault Duty Cycle

VFB = 2.7V, Measure GATE(H)

10

Pulse Width

VFB = 0V

30

s Voltage Identification DAC

Accuracy (all codes except 11111)

VID4 VID3 VID2 VID1VID0

1 0 0 00

1 0 0 01

1 0 0 10

1 0 0 11

1 0 1 00

1 0 1 01

1 0 1 10

1 0 1 11

1 1 0 00

1 1 0 01

1 1 0 10

1 1 0 11

1 1 1 00

1 1 1 01

1 1 1 10

0 0 0 00

0 0 0 01

0 0 0 10

0 0 0 11

Measure VFB = COMP, (COFF = Gnd)

25˚C ≤ TJ ≤ 125˚C, VCC = 12V

-1.0

3.489

3.390

3.291

3.192

3.093

2.994

2.895

2.796

2.697

2.598

2.499

2.400

2.301

2.202

2.103

2.054

2.004

1.955

1.905

1.6

2.3

µs

8.0

12.0

µs

30

50

µs

50

70

%

1.0

%

3.525

3.560

V

3.425

3.459

V

3.325

3.358

V

3.225

3.257

V

3.125

3.156

V

3.025

3.055

V

2.925

2.954

V

2.825

2.853

V

2.725

2.752

V

2.625

2.651

V

2.525

2.550

V

2.425

2.449

V

2.325

2.348

V

2.225

2.247

V

2.125

2.146

V

2.075

2.095

V

2.025

2.045

V

1.975

1.994

V

1.925

1.944

V

4

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