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| 型号： | MC34845BEP |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR BACKLIGHT 6CH 24QFN |
| 标准包装： | 490 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 频率： | 270kHz ~ 330kHz |
| 电源电压： | 5 V ~ 21 V |
| 输出电压： | 8 V ~ 60 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-UFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN 裸露焊盘（4x4） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
ELECTRICAL CHARACTERISTICS
STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS
Table 3. Static and Dynamic Electrical Characteristics (continued)
Characteristics noted under conditions V IN = 12 V, V OUT = 35 V, I LED = 30 mA, f S = 600 kHz, f PWM = 600 Hz - 40 ° C ≤ T A ≤
85 ° C, unless otherwise noted. Typical values noted reflect the approximate parameter means at T A = 25°C under nominal
conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
LED DRIVER (CONTINUED)
Off State leakage Current, All Channels
I CH_LEAK
μ A
V CH = 45 V
-
-
1.0
LED Channels Rise and Fall Time
LED Open Protection, Channel Disabled if V CH ≤ O FDV
t R /t F
O FDV
-
-
50
-
75
0.55
ns
V
LED Short Protection Voltage, Channel Disabled if V CH ≥ S FDV
S FDV
V
(channel on time ≥ 10 μ s)
6.5
7.0
7.5
FAIL PIN
Off State Leakage Current
I FAIL_LEAK
μ A
V FAIL = 5.5 V
On State Voltage Drop
I SINK = 4.0 mA
V OL
-
-
-
-
5.0
0.4
V
OVER-TEMPERATURE SHUTDOWN
Over-temperature Threshold (shutdown mode)
OTT SHUTDOWN
°C
Rising
Hysteresis
150
-
165
25
-
-
PWM INPUT
PWM Dimming Mode LED Current Control
PWM CONTROL
%
PWM = 3.3 V, f PWM = 600 Hz 10% duty;
PWM = 3.3 V, f PWM = 600 Hz 50% duty
PWM = 3.3 V, f PWM = 600 Hz 100% duty
Input Minimum Pulse PWM Pin (V PWM =3.3 V)
Start-up (Wake Mode)
Operational (Wake Mode)
Start-up (Enable Mode)
Operational (Enable Mode)
t PWM_IN
9.9
49.5
-
1.6
-
0.4
-
10
50
100
-
0.2
-
0.2
10.1
50.5
-
-
-
-
-
μ s
Input Frequency Range for PWM Pin
f PWM
DC
-
100
kHz
WAKE
Shutdown Mode Timeout
t SHUTDOWN
27
30
33
ms
LOGIC INPUTS (PWM)
Input Low Voltage
Input High Voltage
Input Current
V ILL
V IHL
I SINK
-0.3
1.5
-1.0
-
-
-
0.5
5.5
1.0
V
V
μ A
LOGIC INPUTS (EN)
Input Low Voltage
Input High Voltage
Input Current (V EN = 12 V)
V ILL
V IHL
I SINK
-0.3
2.1
-
-
-
6.0
0.5
21
10
V
V
μ A
LOGIC INPUTS (WAKE)
Input Low Voltage
Input High Voltage
V ILL
V IHL
-0.3
2.1
-
-
0.5
5.5
V
V
34845
Analog Integrated Circuit Device Data
8
Freescale Semiconductor
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| MC34845CEPR2 | 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MC34845DEP | 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MC34845DEPR2 | 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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