OZ964IGN datasheet(4/14 Pages) ETC2

4 / 14 page

OZ964

CONFIDENTIAL

OZ964-DS-1.2

Page 3

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Test Conditions

Limits

Unit

VDDA=5V; Tamb=25

oC;

Min

Typ

Max

Reference Voltage

Iload = 30µA

3.22

3.35

3.48

Nominal voltage

Vref

Temp coefficient

(Tamb=25

oC)

125

ppm/

Line regulation

VDDA=4.6V to 5.5V

mV/V

Load regulation

Iload = 5 µA to 80 µA

Operating Frequency

CCT =220pF

(1) ;

RRT =47kΩ

(1)

61.5

63.0

65.5

kHz

Normal Operating Frequency

fop

Temp coefficient

(Tamb=25

oC)

125

ppm/

Ramp peak

CT Vpeak

2.35

2.50

2.65

Ramp valley

CT Vvalley

1.00

1.05

1.12

Low Frequency Oscillator

CLCT=6.8nF(2); VDIM=1.2V

209

220

225

Operating frequency

fLF

Temp coefficient

(Tamb=25

oC)

470

ppm/

Ramp peak

LCT Vpeak

1.96

2.06

2.18

Ramp valley

LCT Vvalley

0.27

0.31

0.33

Duty Cycle Range

LPWM

100

Error Amplifier

VSST=0V

0.49

0.50

0.55

VSST=2V

0.79

0.80

0.81

Reference voltage at non-

inverting input pin (internal)

VADJ

VSST=4V

1.19

1.24

1.29

Under-Voltage Lockout

Positive-Going Threshold Voltage

4.3

Negative-Going Threshold Voltage

3.2

Supply

Stand-by Current

IOFF

ENA=low

200

300

µA

Supply Current

ION

DIM=1.2V; LPWM=50k

Ω

Ca=Cb=Cc=Cd=0.5nF

(3)

CCT =220pF

(1),

RRT =47kΩ

(1) ;CLCT=6.8nF(2)

3.0

4.2

Soft Start

4.5

5.5

6.2

µA

SST current

Temp coefficient

(Tamb=25

oC)

420

ppm/

SST Protection Release Threshold

VDDA

-1.25

VDDA

-1.0

VDDA

-0.93

CTIMR

2.0

2.5

2.9

µA

CTIMR current 1

Temp coefficient

(Tamb=25

oC)

395

ppm/

CTIMR current 2

µA

Protection release threshold

2.9

3.1

3.3

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