L6928(2006) 查看數據表（PDF） - STMicroelectronics
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L6928 Datasheet PDF : 16 Pages
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L6928
3
Electrical characteristics
Table 4. Electrical characteristcs
(TJ = 25°C, VIN = 3.6V unless otherwise specified) (1)
Symbol
Parameter
Test condition
Vcc Operating input voltage
After turn on
Vcc ON Turn On threshold
Vcc OFF Turn Off threshold
Vcc hys Hysteresis
Rp High side Ron
Vcc = 3.6V, Ilx =100mA
Rn Low side Ron
Vcc = 3.6V, Ilx =100mA
Peak current limit
Ilim
Valley current limit
Vout
fosc
fsync
Output voltage range
Oscillator frequency
Sync mode clock (2)
DC characteristics
Quiescent current (low
noise mode)
Iq
Quiescent current (low
cunsumption mode)
Ish Shutdown current
Ilx
LX leakage current (2)
Error amplifier characteristics
Vcc = 3.6V
Vcc = 3.6V
Vsync = 0V, no load,
VFB > 0.6V
Vsync = Vcc, no load,
VFB > 0.6V
RUN to GND, Vcc = 5.5V
RUN to GND, VLX = 5.5V,
Vcc = 5.5V
RUN to GND, VLX = 0V,
Vcc = 5.5V
Vfb Voltage feedback
Ifb
Feedback input current (2) VFB = 0.6V
Electrical characteristics
Min Typ Max Unit
(1)
2
5.5
V
2.2
V
2
V
100
mV
240 300
mΩ
(1)
400
215 300
mΩ
(1)
400
1
1.2 1.5
(1) 0.85
A
1.65
1
1.4 1.7
(1) 0.9
A
1.85
Vfb
Vcc
V
1.4
MHz
1
2 MHz
230
µA
(1)
25
50
µA
0.2
µA
1
µA
1
µA
0.593 0.600 0.607 V
(1) 0.590 0.600 0.610 V
25
nA
5/16
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