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
Line regulation
Oscillator worked
VCC range 4.5V-9V
2.4
2.5
2.6
4
V
%
%
Load regulation
2
Temperature coefficient
Feedback Section
Source current
-40℃--120℃
0.2
mV/℃
VFB=1V,Vcc=8V
VFB =2V, VCC=11V
500
600
23k
700
uA
Ω
Pull down resistor
Sink current
mA
V
PFM threshold VPFM
Oscillator stop threshold Vstart
Oscillator Section
Frequency
1.5
0.8
1.8
1
2.0
1.2
V
CCT=330pF
42
45
48
KHZ
Voltage stability
4.5V≤VCC≤9V
VCT peak to peak
-40≤Ta≤125
CCT=330pF
Amplitude
2.4
V
Temperature stability
Falling slop time
Source current
-10
0.8
+10
1.3
%
1
uS
uA
uA
37
500
Sink current
PWM Section
Max duty cycle
60
0
75
%
%
Min duty cycle
Current Sense Section
Current sense voltage
Peak current limit IPK
IPK temperature coefficient
Propagation delay time
Minimum on time
Output Section
OB source current
0.6
V
mA
%
450
-10
520
600
10
-40≤Ta≤125
250
1.2
nS
uS
0.5
IOC=0A (VCC=8V)
IOC=0.5A
25
mA
mA
35
OB sink current
VOB=1V
50
VOB=2V
100
Power Section
Startup current by OB
30
50
uA
mA
V
VCC=8V,
Quiescent current
3.5
9.2
VFB=0.6V(note1)
VCC startup threshold
8.4
8.8
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