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参数资料
| 型号： | AD8240YRMZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER PWM CONTROL 8-MSOP |
| 标准包装： | 1,000 |
| 恒定电流： | 是 |
| 拓扑： | 线性，PWM |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 车载 |
| 频率： | 500Hz |
| 电源电压： | 9 V ~ 27 V |
| 输出电压： | 12V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
AD8240
SPECIFICATIONS
T A = operating temperature range, V PLUS = 13.5 V, unless otherwise noted.
Table 1.
Parameter
V O
V O Regulation 1 at 25°C
V O Regulation 2 -40°C to 125°C
I OUT3
V O Rise Time
Conditions
5 V Reference = 5 V
V PLUS = 13 V to 27 V
V PLUS = 13 V to 27 V
R SHUNT = 0.4 ?
I OUT = 250 mA, C M = 22 nF, CL = 47 nF
Min
?3
?6
Typ
12
±1
±2
500
12
Max
+3
+6
Unit
V
%
%
mA
μs
V SENSE Gain
24
V SENSE Accuracy
V SENSE Output Impedance
?7
8
±3
10
+7
12
%
k?
Base Drive
PWM Turn-On Threshold
PWM Turn-Off Threshold
15
3.5
1.4
mA
V
V
V SENSE Latch-Off Threshold 4
Latch-Off Delay 5
PWM Frequency Range
C M
0
DC
22
0.1
2
0.3
500
V
μs
Hz
nF
C LOAD Range
CL = 47 nF
?30
+30
%
Operating Current 6
V PLUS Operating Range
Shutdown Current
V PLUS > 13 V
PWM low
9
360
27
10
μA
V
μA
5 V Reference Current
Operating Temperature Range
160
?40
200
240
+125
μA
°C
1
2
3
4
5
6
V O = 12/5 of the applied reference voltage ±1% typical. Minimum V PLUS voltage for regulation depends on the external transistor V be and the shunt voltage.
V O = 12/5 of the applied reference voltage ±2% typical. Minimum V PLUS voltage for regulation depends on the external transistor V be and the shunt voltage.
The maximum output current level is set by the selection of the current shunt and power transistor.
(V SENSE – 5 V Reference) The latch-off level is determined by the output level of the sense amplifier. When the amplifier output approaches 5 V, the output is latched off.
This allows the maximum current output level to be determined by the shunt resistor value. Latch-off can be restored to on by cycling the PWM input off and back on.
Internal delay only. The external delay depends on the external capacitor values, LED string impedance, and wiring inductance.
This specifies V PLUS only—ground current includes external transistor base drive.
Rev. 0 | Page 3 of 12
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| AD8240YRMZ-RL | 功能描述:IC LED DRIVER PWM CONTROL 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
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