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參數(shù)資料
| 型號(hào)： | LC410591FN |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 600 kHz SWITCHING FREQ-MAX, QCC16 |
| 封裝： | 4 X 4 MM, VQFN-16 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 84K |
| 代理商： | LC410591FN |
LC410591FN
No.A0089-2/11
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VDD
-0.3 to +7.2
V
Maximum supply voltage
VSS
-0.3 to +0.3
V
Storage Temperature
Tstg
-55 to +125
°C
Allowable Operating Range at Ta=-40
°C to 85°C (unless otherwise specified, Ta=25°C)
Supply voltage (VIN)=3.6V, RSET=3.2k, LED forward voltage (VF)=3.2V,
input bypass capacitor (CIN)=2.2F, output smoothing capacitor (CCP)=2.2F
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
VIN
2.7
5.5
V
Maximum output current
Ta=25
°C
105
mA
Ta=25
°C, 4 LEDs lit
26
mA
Maximum LED current (per 1 LED)
Ta=25
°C, 3 LEDs lit
35
mA
VIN=4.1 to 5.5V (×1 mode)
2
mA
No-load supply current (100% ILED)
VIN=2.7 to 4.1V (×1.5 mode)
5
mA
Charge pump frequency
600
kHz
Charge pump mode-switching
supply voltage
When switching from
×1 to ×1.5
4.1
V
Charge pump mode-switching
supply voltage hysteresis
0.5
V
Reference voltage output
1.2
V
ISET bias
1.2
V
LED current absolute accuracy
±3
%
LED to LED current matching
±1.5
%
Shutdown time supply current
VIN=2.7 to 5.5V,Ta=25°C
1
A
Input signal frequency (PWM)
BRGT input
100
50k
Hz
Ta=25
°C,VIN=4.5 to 5.5V
3
V
BRGT signal high threshold value
Ta=25
°C,VIN=2.7 to 4.5V
2.5
V
BRGT signal low threshold value
Ta=25
°C,VIN=2.7 to 5.5V
0.5
V
BRGT input current (H level)
Ta=25
°C
1
A
BRGT input current (L level)
Ta=25
°C
-1
A
(Note 1) Electrical characteristics at Ta=-40
°C indicate design guaranteed values.
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