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4

BL8080

ELECTRICAL CHARACTERISTICS

(All the data tested under the condition: Ta=25℃, unless it is specially noted)

Parameter

Test Condition

Min

Type

Max

Unit

Reference Section

Reference voltage

Oscillator worked

2.4

2.5

2.6

V

Line regulation

4

%

Load regulation

2

%

Temperature coefficient

-40℃--120℃

0.2

mV/℃

Feedback Section

Source current

500

600

700

uA

Pull down resistor

23k

Ω

Sink current

mA

PFM threshold VPFM

1.5

1.8

2.0

V

Oscillator stop threshold Vstart

0.8

1

1.2

V

Oscillator Section

Frequency

42

45

48

KHZ

Voltage stability

Amplitude

2.4

V

Temperature stability

-40≤Ta≤125

-10

+10

%

Falling slop time

0.8

1

1.3

uS

Source current

37

uA

Sink current

500

uA

PWM Section

Max duty cycle

60

75

%

Min duty cycle

0

%

Current Sense Section

Current sense voltage

0.6

V

450

520

600

mA

-40≤Ta≤125

-10

10

%

Propagation delay time

250

nS

Minimum on time

0.5

1.2

uS

Output Section

OB source current

25

35

mA

OB sink current

50

100

mA

Power Section

Startup current by OB

30

50

uA

Quiescent current

3.5

mA

VCC startup threshold

8.4

8.8

9.2

V