参数资料
型号: ZXLD1374EST20TC
厂商: Diodes Inc
文件页数: 11/39页
文件大小: 0K
描述: IC LED DVR BUCK BOOST 20TSSOP
标准包装: 1
拓扑: 低端,PWM,降压(降压),升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 车载,通用
类型 - 次要: 高亮度 LED(HBLED)
频率: 300kHz ~ 1MHz
电源电压: 6.3 V ~ 60 V
输出电压: 60V
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 20-TSSOP-EP
包装: 标准包装
工作温度: -40°C ~ 125°C
其它名称: ZXLD1374EST20TCDIDKR
A Product Line of
Diodes Incorporated
ZXLD1374
Typical Characteristics – Buck Mode – R S = 291m ? , L = 35μH, I LED = 750mA
0.825
0.800
T A = 25°C
V AUX = V IN
L = 33μH
R S = 291m Ω
0.775
1 LED
3 LEDs
5 LEDs
7 LEDs
9 LEDs
11 LEDs
13 LEDs
15 LEDs
0.750
0.725
0.700
0.675
6
12
18
24
30 36 42 48
INPUT VOLTAGE (V)
54
60
Figure 14 I LED vs. Input Voltage and Number of LED
V AUX IN
1000
900
800
700
600
T A = 25°C
=V
L = 33μH
R S = 291m Ω
5 LEDs
7 LEDs
9 LEDs
11 LEDs
500
3 LEDs
13 LEDs
15 LEDs
400
300
200
100
1 LED
0
6
12
18 24 30 36 42 48
INPUT VOLTAGE (V)
Figure 15 Frequency ZXLD1374 - Buck Mode = L = 47 μ H
54
60
100%
5 LEDs
7 LEDs
9 LEDs
11 LEDs
13 LEDs
15 LEDs
95%
90%
85%
80%
3 LEDs
1 LED
75%
70%
T A = 25°C
65%
60%
6
V AUX = V IN
L = 33μH
R S = 291m Ω
12
18
24
30 36
INPUT VOLTAGE (V)
42
48
54
60
Figure 16 Efficiency vs. Input Voltage and Number of LED
ZXLD1374
Document number: DS35032 Rev. 3 - 2
11 of 39
www.diodes.com
September 2012
? Diodes Incorporated
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