ISL97678中文资料Intersil数据手册PDF规格书
厂商型号 |
ISL97678 |
参数属性 | ISL97678 封装/外壳为32-VFQFN 裸露焊盘;包装为卷带(TR);类别为集成电路(IC) > LED 驱动器;ISL97678应用范围:背光;产品描述:IC LED DRVR RGLTR PWM 50MA 32QFN |
功能描述 | 8-Channel 45V, 50mA LED Driver |
文件大小 |
1.11287 Mbytes |
页面数量 |
16 页 |
生产厂商 | Intersil Corporation |
企业简称 |
Intersil |
中文名称 | Intersil Corporation官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-9-23 22:30:00 |
ISL97678规格书详情
The ISL97678 is an 8-channel PWM dimming LED driver for
LCD backlight applications. The ISL97678 is capable of driving
up to 96 pieces of 3.4V/50mA LEDs but larger numbers of
LEDs is possible if the LED forward voltage combined is less
than 45V. The ISL97678 has 8 channels of voltage controlled
current sources with typical currents matching to ±1, which
compensate for the non-uniformity effect of forward voltages
variance in the LED strings. To minimize the voltage headroom
and power loss in the typical multi-string operation, the
ISL97678 features dynamic headroom control that monitors
the highest LED forward voltage string and uses its feedback
signal for output regulation.
The ISL97678 features PWM dimming up to 30kHz with
0.4~100 duty cycle and maintains ±1 current matching
across all ranges. The PWM dimming frequency can be
adjusted between 100Hz and 30kHz. The boost switching
frequency can also be adjusted between 600kHz and 1.5MHz.
The ISL97678 features extensive protection functions that
include string open and short circuit detections, OVP, and OTP.
ISL97678 is available in the 32 Leads QFN 5mmx5mm and
operate from -40°C to +85°C with input voltage ranges from
4.75V to 26V.
Features
• 8 Channels
• 4.75V ~ 26V Input
• 45V Maximum Output
• Drive Typically 96 LEDs (3.4V/50mA each)
• External PWM Input up to 20kHz Dimming
• Dimming range 0.4~100 up to 30kHz
• Current Matching ±0.7 Typical
• Protections
- String Open Circuit and Short Circuit Detections, OVP, and
OTP
• Adjustable Dimming Frequency
• Adjustable Switching Frequency
• 32 Ld (5mmx5mm) QFN Package
Applications
• Notebook Displays WLED or RGB LED Backlighting
• LCD Monitor LED Backlighting
产品属性
- 产品编号:
ISL97678IRZ-T
- 制造商:
Renesas Electronics America Inc
- 类别:
集成电路(IC) > LED 驱动器
- 包装:
卷带(TR)
- 类型:
DC DC 稳压器
- 拓扑:
升压
- 内部开关:
是
- 输出数:
8
- 电压 - 供电(最低):
4.75V
- 电压 - 供电(最高):
26V
- 电压 - 输出:
45V
- 电流 - 输出/通道:
50mA
- 频率:
500kHz ~ 1.5MHz
- 调光:
PWM
- 应用:
背光
- 工作温度:
-40°C ~ 85°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
32-VFQFN 裸露焊盘
- 供应商器件封装:
32-QFN(5x5)
- 描述:
IC LED DRVR RGLTR PWM 50MA 32QFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
原装进口 |
2020+ |
QFN |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
INTERSIL |
23+ |
NA/ |
6300 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
INTERSIL |
24+ |
QFN |
7000 |
原装现货特价 |
询价 | ||
IDT/RENESAS |
22+ |
QFN |
24500 |
瑞萨全系列在售 |
询价 | ||
RENESAS(瑞萨)/IDT |
23+ |
QFN32EP(5x5) |
6000 |
诚信服务,绝对原装原盘 |
询价 | ||
Intersil |
23+ |
32-QFN(5x5) |
66800 |
原厂原装现货 |
询价 | ||
INTERSIL |
23+ |
NA |
3989 |
专做原装正品,假一罚百! |
询价 | ||
Intersil |
23+ |
32QFN |
9000 |
原装正品,支持实单 |
询价 | ||
INTERSIL |
23+ |
10000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | |||
INTERSIL |
23+ |
QFN |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 |