参数资料
型号: SC628AULTRT
厂商: Semtech
文件页数: 3/21页
文件大小: 0K
描述: IC LED DRIVER
标准包装: 1
系列: *
其它名称: SC628AULDKR
SC628A
Absolute Maximum Ratings
IN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
OUT (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)
OUT Short Circuit Duration . . . . . . . . . . . . . . . . . Continuous
ESD Protection Level (1) (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommended Operating Conditions
Ambient Temperature Range (°C) . . . . . . . . -40 < T A < +85
IN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 < V IN < 5.5
OUT (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 < V OUT < 5.25
Thermal Information
Thermal Resistance, Junction to Ambient (2) (°C/W) . . . . 40
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
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.
Electrical Characteristics
Unless otherwise noted, T A = +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 OUT = 4.7μF (ESR = 0.03Ω),
C 1 = C 2 = 2.2μF (ESR = 0.03Ω), size code 0603 (1608 metric) for all capacitors
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Supply Specifications
Shutdown Current
I Q(OFF)
Shutdown, V IN = 4.2V
Sleep, EN = V IN
0.1
100
2
160
μA
μA
Total Quiescent Current
I Q
Charge pump in 1x mode
3.8
4.65
Charge pump in 1.5x mode
Charge pump in 2x mode
4.6
4.6
5.85
5.85
mA
Fault Protection
Output Short Circuit
Current Limit
Over-Temperature
I OUT(SC)
T OTP
OUT pin shorted to GND
450
160
mA
°C
Flash Mode Safety Timer (1)
Charge Pump
Over-Voltage Protection
t FL(MAX)
V OVP
Flash sink active
OUT pin open circuit, V OUT = V OVP
rising threshold
0.75
5.3
1.00
5.7
1.25
6.0
s
V
3
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