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| 型号： | A6282ELW-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 24-SOIC |
| 标准包装： | 31 |
| 恒定电流： | 是 |
| 拓扑： | 线性 |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 颜色，白色 LED |
| 频率： | 30MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 12V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 620-1223-5 |
A6282
16-Channel Constant-Current LED Driver
ELECTRICAL CHARACTERISTICS (continued), at T A1 = 25°C, V DD = 3.0 to 5.5 V, unless otherwise noted
Characteristic
Symbol Test Conditions
Min.
Typ. 2
Max.
Unit
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Reference Voltage at External
Resistor REXT
T JTSD
T JTSDhys
V EXT
Temperature increasing
R EXT = 374 ?
–
–
–
165
15
1.21
–
–
–
°C
°C
V
1 Tested
2 Typical
at 25°C. Specifications are assured by design and characterization over the operating temperature range of –40°C to 85°C.
data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for
individual units, within the specified maximum and minimum limits.
3 Err = (I O (min or max) – I O (av)) / I O (av). I O (av) is the average current of all outputs. I O (min or max) is the output current with the greatest
difference from I O (av).
4 Recommended operating range: V O = 1.0 to 3.0 V.
SWITCHING CHARACTERISTICS at T A1 = 25°C, V DD = V IH = 5.0 V, V DS = 1 V, V IL = 0 V, R EXT = 910 Ω , I O = 21.4 mA, V L = 2 V,
R L = 51 Ω , C L = 15 pF (see also Timing Diagrams section)
Characteristic
Clock Frequency
Clock Frequency (cascaded devices)
Clock Pulse Duration
LE Pulse Duration
Setup Time
Hold Time
Rise Time
Fall Time
Propagation Delay Time
Output Enable Pulse Duration
Symbol
f CLK
f CLKC
t wh0
t wh1
t su0
t su1
t h0
t h1
t r0
t r1
t f0
t f1
t pd0
t pd1
t pd2
t w(OE)
Test Conditions
CLK
CLK
CLK = high
LE = high
SDI to CLK ↑
CLK ↑ to LE ↑
CLK ↑ to SDI
LE ↓ to CLK ↑
SDO, 10/90% points (measurement circuit A)
OUTx, V DD = 5 V,10/90% points (measurement circuit B)
SDO, 10/90% points (measurement circuit A)
OUTx, V DD = 5 V,10/90% points (measurement circuit B)
CLK ↑ to SDO ↑↓ (measurement circuit A)
ˉOˉ ˉ Eˉ ↓ to OUTx ↑↓ (measurement circuit B)
LE ↑ to OUTx ↑↓ (measurement circuit B)
(see Timing Diagrams section)
Min.
–
–
16
20
10
10
10
10
–
–
–
–
–
–
–
60
Typ. 2
–
–
–
–
–
–
–
–
–
10
–
10
–
–
–
–
Max.
30
25
–
–
–
–
–
–
16
30
16
30
30
60
60
–
Unit
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1 Tested
2 Typical
at 25°C. Specifications are assured by design and characterization over the operating temperature range of –40°C to 85°C.
data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for
individual units, within the specified maximum and minimum limits.
Parameter Measurement Circuits
V L
A6282
SDO
A6282
OUTx
R L
(A) Circuit for t f0 , t pd0 , and t r0
15 pF
(B) Circuit for t f1 , t pd1 , t pd2 , and t r1 .
C L
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
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