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| 型号： | ZXLD1374EST20TC |
| 厂商： | Diodes Inc |
| 文件页数： | 5/39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： | 是 |
| 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 |
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A Product Line of
Diodes Incorporated
ZXLD1374
Recommended Operating Conditions (@T A = +25°C, unless otherwise specified.)
Symbol
V IN
V AUX
V SENSE
V LX
I LX
V ADJ
I STATUS
Parameter
Input Supply Voltage Range
Auxiliary Supply Voltage Range (Note 8)
Differential Input Voltage
Low Side Switch Output Voltage
Low Side Switch Continuous Output Current
External DC Control Voltage Applied to ADJ Pin to
Adjust Output Current
Status Pin Output Current
Performance/Comment
Normal operation
Reduced performance operation (Note 7)
Normal operation
Reduced performance operation (Note 7)
V VIN -V ISM , with 0 ≤ V ADJ ≤ 2.5
DC brightness control mode
from 10% to 200%
Min
8
6.3
8
6.3
0
0.125
Max
60
60
450
60
1.5
2.5
100
Unit
V
V
mV
V
A
V
μA
I REF
f SW
V TADJ
Reference External Load Current
Recommended Switching Frequency Range (Note 9)
Temperature Adjustment (T ADJ ) Input Voltage Range
REF sourcing current
300
0
1
1000
V REF
mA
kHz
V
f PWM
t PWMH/L
V PWMH
V PWML
T J
GI
Recommended PWM Dimming Frequency Range
PWM Pulse Width in Dimming Mode
PWM Pin High Level Input Voltage
PWM Pin Low Level Input Voltage
Operating Junction Temperature Range
Gain Setting Ratio for Boost and Buck-Boost Modes
To maintain 1000:1 resolution
To maintain 200:1 resolution
PWM input high or low
Ratio= V GI /V ADJ
100
100
0.005
2
0
-40
0.20
500
1000
10
5.5
0.4
+125
0.50
Hz
Hz
ms
V
V
°C
Notes:
7. Device is guaranteed to have started up by 6.5V and as such the minimum applied supply voltage has to be above 6.5V (plus any noise margin).
The ZXLD1374 will, however, continue to function when the input voltage is reduced from ≥ 8V down to 6.3V.
When operating with input voltages below 8V the output current and device parameters may deviate from their normal values; and is dependent on
power MOSFET switch, load and ambient temperature conditions. To ensure best operation in Boost and Buck-boost modes with input voltages, V IN ,
between 6.5 and 12V a suitable boot-strap network on V AUX pin is recommended. Performance in Buck mode will be reduced at input voltages (V IN ,
V AUX ) below 8V. – A boot-strap network cannot be implemented in buck mode.
8. V AUX can be driven from a voltage higher than V IN to provide higher efficiency at low V IN voltages, but to avoid false operation; a voltage should not
be applied to V AUX in the absence of a voltage at V IN .
9. The device contains circuitry to control the switching frequency to approximately 400kHz. The maximum and minimum operating frequency is not
tested.
ZXLD1374
Document number: DS35032 Rev. 3 - 2
5 of 39
www.diodes.com
September 2012
? Diodes Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZXLD1601 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:ADJUSTABLE DC - DC BOOST CONVERTER WITH INTERNAL SWITCH IN SC70 |
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| ZXLD1601H6TA | 功能描述:开关变换器、稳压器与控制器 Boost Converter for LCD and OLED BIAS RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| ZXLD1601H6TC | 功能描述:开关变换器、稳压器与控制器 Boost Converter for LCD and OLED BIAS RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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