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参数资料
| 型号： | BD8112EFV-ME2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 2/25页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER 24-VSSOP |
| 应用说明： | Automotive Applications |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 高端，低端，PWM，降压（降压），升压（升压） |
| 输出数： | 2 |
| 内部驱动器： | 两者兼有 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 高亮度 LED（HBLED），白色 LED |
| 频率： | 250kHz ~ 600kHz |
| 电源电压： | 5 V ~ 30 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VSSOP（0.220"，5.60mm 宽）裸露焊盘 |
| 供应商设备封装： | 24-HTSSOP |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 105°C |
| 其它名称： | BD8112EFV-ME2DKR |
BD8112EFV-M
● Operating conditions (Ta=25 ℃ )
Technical Note
frequency range
Parameter
Power supply voltage
Oscillating frequency range
External synchronization
*4 *5
External synchronization
pulse duty range
Symbol
V CC
F OSC
F SYNC
F SDUTY
Limits
5.0 ～ 30
250 ～ 600
fosc ～ 600
40 ～ 60
Unit
V
kHz
kHz
%
*4
*5
Connect SYNC to GND or OPEN when not using external frequency synchronization.
Do not switch between internal and external synchronization when an external synchronization signal is input to the device.
● Electrical characteristics (Unless otherwise specified, V CC =12V Ta=25 ℃ )
Parameter Symbol
Limits
Min Typ Max.
Unit
Conditions
Circuit current
Standby current
I CC
I ST
-
-
7
4
14
8
mA
μA
EN=Hi, SYNC=Hi, RT=OPEN
PWM=Low, ISET=OPEN, C IN =10μF
EN=Low
[VREG Block (VREG)]
Reference voltage
V REG
4.5
5
5.5
V
I REG =-5mA, C REG =2.2μF
[OUTH Block]
OUTH high-side ON resistance
OUTH low-side ON resistance
Over-current protection
operating voltage
R ONHH
R ONHL
V OLIMIT
1.5
1.0
V CC
-0.66
3.5
2.5
V CC
-0.6
7.0
5.0
V CC
-0.54
Ω
Ω
V
I ON =-10mA
I ON =10mA
[OUTL Block]
OUTL high-side ON resistance
OUTL low –side ON resistance
R ONLH
R ONLL
2.0
1.0
4.0
2.5
8.0
5.0
Ω
Ω
I ON =-10mA
I ON =10mA
[SW Block]
SW low -side ON resistance
R ON_SW
2.0
4.5
9.0
Ω
I ON_SW =10mA
[Error Amplifie Block]
LED voltage
V LED
0.9
1.0
1.1
V
COMP sink current
COMP source current
I COMPSINK
I COMPSOURCE
15
-35
25
-25
35
-15
μA
μA
V LED =2V, Vcomp=1V
V LED =0V, Vcomp=1V
[Oscillator Block]
Oscillating frequency
F OSC
285
300
315
KHz
R T =100k Ω
◎ This product is not designed for use in radioactive environments.
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
2/22
2011.08 - Rev.C
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