- 您现在的位置：买卖IC网 > Datasheet目录306 > A6281EESTR-T (Allegro Microsystems Inc)IC LED DRIVER PWM CONTROL 16-QFN Datasheet资料下载
参数资料
| 型号： | A6281EESTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER PWM CONTROL 16-QFN |
| 产品培训模块： | A6281 Three-channel LED Driver |
| 标准包装： | 1,500 |
| 恒定电流： | 是 |
| 拓扑： | 线性，PWM |
| 输出数： | 3 |
| 内部驱动器： | 是 |
| 类型 - 次要： | RGB |
| 频率： | 5MHz |
| 电源电压： | 4.75 V ~ 17 V |
| 输出电压： | 1 V ~ 3 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN/MLP 裸露焊盘（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1218-2 |
A6281
3-Channel Constant Current LED Driver
with Programmable PWM Control
OPERATING CHARACTERISTICS , valid at T A = 25°C, V IN = 4.75 to 17.0 V, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
ELECTRICAL CHARACTERISTICS
Quiescent Supply Current
Operating Supply Current
Load Supply Voltage
Undervoltage Lockout
VREG Voltage Range 1
Output Current (any single output)
I DD
I DD
V IN
V IN(UV)
V REG
I OUT
f CLKIN = 0.0 Hz
f CLKIN = 5 MHz
V IN rising
V IN falling
I OUT =15 mA, V IN = 17 V
R EXT = 5 k Ω , scalar = 100%
R EXT = 15 k Ω , scalar = 100%
–
–
4.75
–
3.0
4.6
135
45
–
–
–
–
–
–
150.0
51
5.0
15.0
17
4.5
–
5.4
165
57
mA
mA
V
V
V
V
mA
mA
Output to Output Matching
Error 2
Err
Output to output variation—all outputs on, R EXT = 5 k Ω
–7
–
7
%
Output Voltage Range
Load Regulation (I %Diff / ? V DS )
V DS(min)
R EXT = 5 k Ω , V DS = 1 to 3 V
1.0
–
–
±1
3.0
±3
V
%/V
Output Leakage Current
I DSX
V OH = 17 V
–
–
1.0
μ A
Logic Input Voltage
Logic Input Voltage Hysteresis
V IH
V IL
All digital inputs
2.0
–
–
–
–
150
–
0.8
–
V
V
mV
CI and SDI Pins Logic Input Current
Input Resistance
Logic Output Voltage
I IN
R I
V OL
V OH
V IN = 0 to 5 V
OEI pin, pull-up
LI pin, pull-down
V IN ≥ 5.0 V, I O = ±2 mA
–20
150
100
–
3.8
–
300
200
–
–
20
600
400
0.4
–
μ A
k Ω
k Ω
V
V
Output Dot Correction Error
PWM Oscillator
f PWM
R EXT = 5 k Ω ; LSB
–
–
±1
800
–
–
bit
kHz
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T JTSD
T Jhys
Temperature increasing
–
–
165
15
–
–
°C
°C
SWITCHING CHARACTERISTICS
Clock Hold Time
Data Setup Time
Data Hold Time
Latch Setup Time 3
Latch Hold Time
Output Enable Set Up Time
Output Enable Falling to Outputs Turning On
Propagation Delay Time
t H(CLK)
t SU(D)
t H(D)
t SU(LI)
t H(LI)
t SU(OE)
t P(OE)
20
20
20
20
20
40
–
–
–
–
–
–
–
200
–
–
–
–
–
–
–
ns
ns
ns
ns
ns
ns
ns
Clock to Output Propagation Delay Time
Logic Output Fall Time
Logic Output Rise Time
Output Fall Time (Turn Off)
Output Rise Time (Turn On)
Clock Falling Edge to Serial Data Out
Propagation Delay Time
Logic In to Output Propagation Delay
Clock Out Pulse Duration
Maximum Clock In Frequency
t P(OUT)
t BF
t BR
t f
t r
t P(SDO)
t P(IO)
t w(CLK)
f CI
External clock selected, V DS = 1.0 V, I O = 150 mA
C OB = 50 pF, 4.5 to 0.5 V
C OB = 50 pF, 0.5 to 4.5 V
C OUT = 10 pF, 90% to 10% of I OUT = 10 mA
C OUT = 10 pF, 90% to 10% of I OUT = 150 mA
C OUT = 10 pF, 10% to 90% of I OUT = 10 mA
C OUT = 10 pF, 10% to 90% of I OUT = 150 mA
LI → LO, CI → CO, OEI → OEO
–
–
–
–
–
–
–
–
–
70
–
200
50
30
10
10
50
100
50
50
100
–
–
100
60
–
–
–
–
–
–
130
6
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
1 If V IN is a 4.75 to 5.5 V supply, connect VIN to VREG externally
2 Err = [I O (min or max) – I O (av)] / I O (av), where I O (av) = average of 3 output current values.
3 In daisy-chained applications, t SU(LI) must be increased for the quantity of pixels in the chain (see Application Information section).
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4
相关PDF资料 |
PDF描述 |
|---|---|
| A6282ELPTR-T | IC LED DRIVER LINEAR 24-TSSOP |
| A8431EEHTR-T | IC LED DRVR WHITE BCKLGHT 6-MLP |
| A8500EECTR-T | IC LED DRVR WHT/RGB BCKLGT 26QFN |
| A8502KLPTR-T | IC LED DVR WHITE MULTI 16-TSSOP |
| A8504EECTR-T | IC LED DRVR WHT/RGB BCKLGT 26QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A6281KIT | 制造商:Allegro MicroSystems 功能描述:EVALIATION KIT |
| A6282 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:16-Channel Constant-Current LED Driver |
| A6282AEESTR-T | 制造商:Allegro MicroSystems LLC 功能描述: |
| A6282AELPTR-T | 制造商:Allegro MicroSystems LLC 功能描述: |
| A6282EES-T | 制造商:Allegro MicroSystems 功能描述:LED DRIVER 16 CH CONST-CURRENT 制造商:Allegro MicroSystems 功能描述:LED DRIVER, 16 CH, CONST-CURRENT 制造商:Allegro MicroSystems 功能描述:LED DRIVER, 16 CH, CONST-CURRENT; Topology:Constant Current; No. of Outputs:16; Output Current:51.1mA; Output Voltage:12V; Driver Case Style:QFN; Input Voltage Min:3V; Input Voltage Max:5.5V; Switching Frequency:30MHz; Operating ;RoHS Compliant: Yes |
发布紧急采购，3分钟左右您将得到回复。