参数资料
型号: BD8112EFV-ME2
厂商: Rohm Semiconductor
文件页数: 4/25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:
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
● Electrical characteristic curves (Reference data)
(Unless otherwise specified, Ta=25 ℃ )
Technical Note
5.5
5.3
5.1
4.9
4.7
4.5
Vcc= 12V
400
360
320
280
240
200
Vcc= 12V
Fig.3 OSC 温度特性
400
360
320
280
240
200
Vcc= 12V
-40
-15
10 35 60 85
-40
-15
10 35 60 85
-40
-15
10 35 60 85
55
53
51
49
47
45
TEMPERATURE:Ta [ ℃ ]
Fig.1 VREG temperature
characteristic
Vcc= 12V
50
40
30
20
10
0
TEMPERATURE:Ta [ ℃ ]
Fig.2 OSC temperature
characteristic
5
4
3
2
1
0
TEMPERATURE:Ta [ ℃ ]
Fig.3 ILED depend on VLED
-40
-15 10 35 60
TEMPERATURE:Ta [℃]
85
0
0.5 1 1.5
VDAC VOLTAGE:VDAC[V]
2
0
0.02 0.04 0.06 0.08
VDAC VOLTAGE:VDAC[V]
0.1
100
85
Fig.4 ILED temperature
characteristic
100
85
Fig.5 VDAC Gain ①
VCC=12V
6.0
Fig.6 VDAC Gain ②
70
55
VCC=30V
70
55
4.0
Vcc=12V
2.0
40
40
25
25
0.0
50
100
150 200
250
50
100 150 200 250
0
6
12
18
24
30
36
0.66
0.64
0.62
0.60
0.58
0.56
0.54
Total_Io [mA]
Fig.7 Efficiency
(LED2 Parallel 5 step)
VCC=12V
10
8
6
4
2
0
OUTPUT CURRENT [mA]
Fig.8 Efficiency
(LED2 Parallel 7 step)
10
8
6
4
2
0
SUPPLY VOLTAGE:Vcc [V]
Fig.9 Circuit Current
(Switching OFF)
-40
-15 10 35 60
TEMPERATURE:Ta [℃]
85
0
1
2 3 4
EN VOLTAGE:VEN [V]
5
0
1 2 3 4
PWM VOLTAGE:VEN [V]
5
Fig.10 Overcurrent detecting voltage
temperature characteristic
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? 2010 ROHM Co., Ltd. All rights reserved.
Fig.11 EN threshold voltage
4/22
Fig.12 PWM threshold voltage
2011.08 - Rev.C
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