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參數資料
| 型號： | SC624A |
| 廠商： | Semtech Corporation |
| 英文描述： | LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface |
| 中文描述： | LED燈管理股電荷泵，4個LED，雙LDO和I2C接口 |
| 文件頁數： | 3/23頁 |
| 文件大?。?/td> | 309K |
| 代理商： | SC624A |
SC624A
3
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114-B.
(2) Calculated from package in still air, mounted to 3” x 4.5” 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Absolute Maximum Ratings
VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
VOUT (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
C1+, C2+ (V) . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V
OUT
+ 0.3)
Pin Voltage — All Other Pins (V) . . . . . . . . . -0.3 to (V
IN
+ 0.3)
VOUT Short Circuit Duration . . . . . . . . . . . . . . . Continuous
VLDO1, VLDO2 Short Circuit Duration . . . . . . Continuous
ESD Protection Level
(1)
(kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommended Operating Conditions
Ambient Temperature Range (°C) . . . . . . . . -40 < T
A
< +85
VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 < V
IN
< 5.5
VOUT (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 < V
OUT
< 5.25
Voltage Difference between any two LEDs (V) . . . . . . < 1.2
Thermal Information
Thermal Resistance, Junction to Ambient
(2)
(°C/W) . . . .
35
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
Unless otherwise noted, T
= +25°C for Typ, -40oC to +85°C for Min and Max, T
J(MAX)
= 125oC, V
IN
= 3.0V to 4.2V, C
IN
= C
1
= C
2
= 2.2μF,
C
OUT
= 4.7μF (ESR = 0.03Ω), ΔV
F
≤ 1.2V
(1)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Supply Specifications
Shutdown Current
I
Q(OFF)
Shutdown, V
IN
= 4.2V
0.1
2
μA
Total Quiescent Current
I
Q
Sleep (LDOs off), EN = V
IN
100
160
μA
Sleep (LDOs on), EN = V
,
V
IN
> (V
LDO
+ 300mV), I
LDO
< 200mA
220
340
Charge pump in 1x mode, 4 backlights on
3.8
4.65
mA
Charge pump in 1.5x mode, 4 backlights on
4.6
5.85
Charge pump in 2x mode, 4 backlights on
4.6
5.85
Fault Protection
Output Short Circuit
Current Limit
I
OUT(SC)
VOUT pin shorted to GND
300
mA
Over-Temperature
T
OTP
160
°C
Electrical Characteristics
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相關代理商/技術參數 |
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| SC624A_09 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and I2C Interface |
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| SC624EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and SemWireTM Interface |
| SC624ULTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and SemWireTM Interface |
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