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SC5014AEVB 数据表(PDF) 3 Page - Semtech Corporation

部件名 SC5014AEVB
功能描述  High Efficiency 2-Channel HB LED Driver with I2C Interface and Direct PWM Dimming
PDF  27 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC5014AEVB 数据表(HTML) 3 Page - Semtech Corporation

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SC5014A
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:
() Tested according to JEDEC standard JESD22-A4-B.
(2) Calculated from package in still air, mounted to 3 x 4.5in, 4-layer FR4 PCB with thermal vias under the exposed pad per JESD5 standards.
Absolute Maximum Ratings (refer to PGND)
VCC Pin (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
IO Pins (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30
DRVN, OVP, CS, EN, UVLO, SCP, REF, FLT (V) . . -0.3 to +6.0
FSET, SCL, SDA, ISET, PWMI (V) . . . . . . . . . . . . . -0.3 to +6.0
PGND to AGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3
ESD Protection Level() (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommended Operating Conditions
Ambient Temperature Range (°C). . . . . . . . -40 < T
A < +85
VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 to 27
IO Current per String (mA) . . . . . . . . . . . . . . . . . . 250 (max)
Thermal Information
Thermal Resistance, Junction to Ambient(2) (°C/W) . . . . 32
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +50
Storage Temperature Range (°C) . . . . . . . . . . . -65 to +50
Peak IR Reflow Temperature (0s to 30s) (°C) . . . . . . +260
Unless noted otherwise, T
A = 25°C for typical, -40°C < TA = TJ < 85°C for min and max. VCC = 5V, RISET = 25.5KΩ, RFSET = 00KΩ.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Input Supply
V
CC Supply Voltage
V
CC
4.5
5.5
V
V
CC Under-Voltage Lockout Threshold
V
CC-UVLO(TH)
V
CC Voltage Rising
4.2
4.4
V
V
CC Under-Voltage Lockout Hysteresis
V
CC-UVLO(HYS)
V
CC Voltage Falling
80
mV
V
CC Quiescent Supply Current
I
CC(Q)
EN = 5V, Switching, No Load
2
mA
V
CC Supply Current in Shutdown
I
CC(SD)
EN = 0V

µA
V
UVLO Under-Voltage Lockout Threshold
V
UVLO(TH)
UVLO Pin Voltage Rising
.8
.23
.28
V
I
UVLO Under-Voltage Lockout Hysteresis
I
UVLO(HYS)
UVLO Pin Voltage Falling
7
0
3
µA
V
REF Bandgap Voltage
V
REF
.20
.23
.26
V
External FET Gate Drive
DRVN High Level
V
DRVN(H)
00mA from DRVN to GND
V
CC -0.5
V
CC -0.2
V
DRVN Low Level
V
DRVN(L)
-00mA from DRVN to V
CC
0.2
0.5
V
DRVN On-Resistance
R
DRVN
DRVN High or Low
2
5
Ω
DRVN Sink / Source Current
I
DRVN
DRVN Forced to 2.5V

A
Boost Converter
CS Current Limit Threshold
V
CS(ILIM)
0.36
0.40
0.44
V
Soft-Start Time ()
t
SS
From EN to End of Soft-Start
4.4
ms
Electrical Characteristics



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