CS5106 datasheet(5/12 Pages) CHERRY

5 / 12 page

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Electrical Characteristics: TJ = -40¡C to 125¡C, VSS = 9 to 16V, V5REF ILOAD = 2mA, SYNCOUT Free Running, unless other-

wise specified. For All Specs: UVSD=6V, OVSD = 0V, ENABLE = 0V, ILIM(1,2) = 0,VFB(1,2) = 3V,RFADJ = RDLYSET = 27.4k½.

s Current Limit Circuits

ILIM1 Current Limit Threshold

Adjust ILIM1 from 1.0V - 1.3V until

1.16

1.24

1.30

Voltage

GATE1 goes low.

ILIM1 Short Circuit Threshold

Adjust ILIM1 from 1.30V - 1.50V until

1.35

1.44

1.51

Voltage

GATE1 skips 2-cycles with reference

to SYNCOUT.

ILIM1 Input Bias Current

Set ILIM1=0V. Measure current

0.50

5.00

µA

out of ILIM1 lead.

ILIM2 Current Limit

Adjust ILIM2 from 1.0V - 1.3V until

1.16

1.24

1.30

Threshold V

GATE2 goes low.

ILIM2 Short Circuit

Adjust ILIM2 from 1.30V - 1.50V until

1.35

1.44

1.51

Threshold Voltage

GATE2 skips 2-cycles with reference

to SYNCOUT.

ILIM2 Input Bias Current

Set ILIM 2= 0V. Measure current out

0.50

5.00

µA

of ILIM2 lead.

s Voltage Feedback Control

RAMP1 Offset Voltage

VFB1=0V. Adjust RAMP1 from 0V - 0.3V

0.08

0.13

0.20

until GATE1 goes low. Measure VRAMP1.

RAMP1 Input Bias Current

Set RAMP1 = 0V. Measure Current

0.50

5.00

µA

out of RAMP1 lead.

RAMP2 Offset Voltage

VFB2 = 0V. Adjust RAMP2 from

0.08

0.13

0.20

0V-3V until GATE2 goes low.

Measure VRAMP2.

RAMP2 Input Bias Current

Set RAMP2 = 0V. Measure Current

out of RAMP2 lead.

0.50

5.00

µA

VFB1 Input Impedance

Measure input impedance.

60.0

120.0

220.0

k½

VFB2 Input Impedance

Measure Input impedance.

60.0

120.0

220.0

k½

s Gate1,2,2B Output Voltages

VSS = 12V. VCC = VSS - VDON

GATE1 Low State

PROGRAM = 0V. Measure GATE1

0.15

0.80

voltage when sinking 1mA.

GATE2 Low State

PROGRAM = 0V. Measure GATE2

0.18

0.80

voltage when sinking 1mA.

GATE2B Low State

PROGRAM = 0V. Measure GATE2B

0.18

0.80

voltage when sinking 1mA.

GATE2B High State

Measure VCC - GATE2B voltage

1.65

2.00

when sourcing 1mA.

GATE2 High State

Measure VCC - GATE2 voltage

1.65

2.00

when sourcing 1mA.

GATE1 High State

Measure VCC - GATE1 voltage

1.65

2.00

when sourcing 1mA.

s Propagation Delays

ILIM1 Delay to Output GATE1

Measure delay from ILIM1 going

80.0

120.0

high to GATE1 going low.

ILIM2 Delay to Output GATE2

Measure delay from ILIM2 going

80.0

100.0

high to GATE2 going low.

RAMP1 Delay to Output GATE1 Measure delay from RAMP1 going

80.0

115.0

high to GATE1 going low.

RAMP2 Delay to Output GATE2 Measure delay from RAMP2 going

80.0

100.0

high to GATE2 going low.

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