OZ960 Просмотр технического описания (PDF) - O2Micro International

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OZ960

Intelligent CCFL Inverter Controller / SOP 20 PIN

O2Micro International 

FUNCTIONAL SPECIFICATIONS

OZ960

Parameter

Reference Voltage

Nominal voltage

Line regulation

Load regulation

High Frequency Oscillator

Initial accuracy

Ramp peak

Ramp valley

Temp. stability

Low Frequency Oscillator

Initial accuracy

Ramp peak

Ramp valley

Low Frequency PWM

Duty Cycle Range

Error Amplifier

Input offset voltage

Input voltage range

Offset current at FB pin

Reference voltage at non-

inverting input pin (internal)

Open loop voltage gain

Unity gain bandwidth

Power supply rejection

Threshold

Over Voltage Protection

Supply

Supply current

Supply current

SST current

CTIMR current

NDR-PDR Output

Output resistance

Output resistance

Symbol

Vref

fosc

VADJ

IOFF

ION

Rp

Rn

Test Conditions

VDDA=5V; Tamb = 25oC

Iload = 0.1mA

VDDA = 4.7V – 5.3V

Iload = 0.025 mA to 0.25 mA

CT = 100pF, RT = 120k(1)

TA = 0 oC to 70oC

ENA = low

ENA = high; VDDA = 5V;

Vdim = 2V; LPWM = 50k(2)

Ca=Cb=Cc=Cd=2nF(3)

HF = 60kHz; LF = 185Hz

Current source

Current sink

Limits

Unit

Min

Typ

Max

2.37

2.5

-

4

-

2

2.63

V

-

mV/V

-

mV/mA

53

57

-

3.0

-

1.0

-

200

60

KHz

-

V

-

V

-

ppm/ oC

See Table 1, page 6

2.85

3.0

3.15

V

0.94

1.0

1.06

V

0

-

100

%

-

7

-

mV

0

-

VDD-1.5V

V

-

-

100

nA

1.19 1.25

1.31

V

-

80

-

1.0

-

60

-

dB

-

MHz

-

dB

1.90

2

2.15

V

-

150

200

µA

-

4.4

5.5

mA

See Table 1, page 6

See Table 1, page 6

-

27

-

Ω

-

14

-

Ω

OZ960-DS-1.6

Page 5

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