CS5106 datasheet(3/12 Pages) CHERRY

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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 VSS Supply Current

Measure current into VSS when

16.00

23.00

V5REF ILOAD=0mA. 9V ² VSS ² 13V.

Measure current into VSS when

16.00

25.00

V5REF ILOAD=0mA. 13V < VSS ² 16V.

Measure current into VSS when

16.00

30.00

V5REF ILOAD=0mA. 16V < VSS ² 20V.

s Low VCC Supply Current

Float VSS. Set VCC=7V & measure

1.50

3.50

VCC current while V5REF ILOAD=0mA.

s VSS TO VCC DIODE

Diode ON Voltage

Measure VSS - VCC.

0.20

0.75

1.00

s Reference

5V Internal Voltage Reference

Measure VREF voltage when

4.85

5.00

5.15

IREF=0 and IREF=20 mA.

VREFOK Threshold

Adjust VREF from 4.8V-4.0V until

4.30

4.55

4.70

PWM1,2 goes low.

s Low VCC Lockout

VCC Turnon Threshold Voltage

VCC increasing until ICC > 3.5mA

7.00

7.25

7.50

V5REF ILOAD = 0mA

VCC Turnoff Threshold Voltage

VCC decreasing until ICC < 3.5mA

6.30

6.70

7.10

V5REF ILOAD = 0mA

Hysteresis

Turnon - Turnoff

0.40

0.55

0.70

s Clock

Operating Frequency1

Measure frequency from SYNCOUT.

485.0

512.0

540.0

kHz

SYNCIN Input Impedance

Measure input impedance.

7.00

15.00

k½

SYNCOUT Output Low Voltage

RLOAD = 2k½ to V5REF

1.00

1.50

SYNCOUT Output High

RLOAD = 2k½ to Gnd

3.50

4.20

Voltage

SYNCIN Detect Frequency

Verify SYNCOUT = SYNCIN,

425.0

555.0

kHz

RLOAD = 2k½ to Gnd

Max. Low SYNC Rej. Frequency Verify SYNCOUT = FCLK when

340.0

kHz

RLOAD = 2k½ to Gnd.

Min. High SYNC Rej. Frequency Verify SYNCOUT = FCLK when

690

kHz

RLOAD = 2k½ to Gnd.

SYNCIN Input Threshold

Functional Testing

0.90

1.85

2.90

Voltage

Verify FCLK from 1.0V to 2.8V.

Main PWM Clock Pulse

(GBD) - CLPH1

Width

One Shot Pulse Width

80.0

100.0

120.0

Aux PWM Clock Pulse

(GBD) -CLPH2

Width

One Shot Pulse Width

80.0

100.0

120.0

s Bias Supply Error Amplifier

Output Low Voltage

VSS > 12.6V. Measure OAOUT

43.0

85.0

voltage when sinking 1.0 mA.

Output High Voltage

VSS < 11.4V. Measure OAOUT

4.55

4.75

voltage when sourcing 150µA.

Output High Source Current

VSS < 11.4V. Measure OAOUT source

150.0

225.0

300.0

µA

current when OAOUT = 0.5V.

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