参数资料
型号: ZXLD1374EST20TC
厂商: Diodes Inc
文件页数: 14/39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 - Boost Mode – R S = 150m ? , L = 33μH, I LED = 350mA, GI RATIO = 0.23 with Bootstrap
0.385
0.375
0.365
0.355
0.345
3 LEDs
6 LEDs
4 LEDs
7 LEDs
5 LEDs
8 LEDs
0.335
0.325
0.315
6.5
8.0
9.5
11.0 12.5 14.0
T A = 25°C
L = 33μH
R S = 150m Ω
R GI1 = 36 m Ω
R GI2 = 120 m Ω
15.5
17.0
INPUT VOLTAGE (V)
Figure 23 LED Current vs. Input Voltage and Number of LED
600
500
400
6 LEDs
7 LEDs
8 LEDs
300
5 LEDs
4 LEDs
3 LEDs
200
T A = 25 ° C
100
L = 33μH
R S = 150m Ω
R GI1 = 36k Ω
0
6.5
8.0
9.5
11.0 12.5
INPUT VOLTAGE (V)
14.0
R GI2 = 120k Ω
15.5 17.0
Figure 24 Switching Frequency vs. Input Voltage and Number of LED
100%
95%
T A = 25°C
L = 33μH
R S = 150m Ω
R GI1 = 36K Ω
R GI2 = 120k Ω
90%
85%
80%
75%
8 LEDs
7 LEDs
6 LEDs
5 LEDs
4 LEDs
3 LEDs
70%
6.5
8.0
9.5
11.0 12.5 14.0
INPUT VOLTAGE (V)
15.5
17.0
Figure 25 Efficiency vs. Input Voltage and Number of LED
ZXLD1374
Document number: DS35032 Rev. 3 - 2
14 of 39
www.diodes.com
September 2012
? Diodes Incorporated
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