參數(shù)資料
型號(hào)： TB62757FUG
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 1430 kHz SWITCHING FREQ-MAX, PDSO6
封裝： 0.95 MM, PITCH, LEAD FREE, PLASTIC, SSOP-6
文件頁(yè)數(shù)： 2/20頁(yè)
文件大?。?/td> 516K
代理商： TB62757FUG
TB62757FUG
2006-02-206
10
3) Input PWM signal with filtering to FB terminal
IF can be adjusted with filtering PWM signal using RC filter indicated in recommended circuit, because the
PWM signal can be regard as analog voltage after filtering.
This method is without repeating IC ON/OFF, and no need to consider holding rash current.
[Notice]
LED current value goes over 100% of the current set with RSENS, if the input voltage after filtering is
between 0 V to 325 mV (typ.).
for ref.) Voltage during PWM Signal-ON
= 2 V
About external parts value, please see recommended circuit.
Supply Voltage [V]
Ratio with
Setting Current
No connect (OFF)
100%
0
116.1%
10%
105.3%
20%
95.1%
30%
84.8%
40%
74.6%
50%
64.0%
60%
53.8%
70%
43.7%
80%
34.0%
90%
24.2%
100%
13.3%
<<Recommended circuit>>
0.0%
20.0%
40.0%
60.0%
80.0%
100.0%
120.0%
140.0%
0%
20%
40%
60%
80%
100%
TB62757FUG
16 k
PWM signal
S-Di
6.8
H
VIN =
2.8 to 5.5 V
C
1
=2.2
F
C
2
=1.0
F
82
k
R
SENS
=16
VCC
SW
OVD
FB
GND
SHDN
0.1
F
10
k
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