参数资料
型号: AL9910AS-13
厂商: Diodes Inc
文件页数: 2/15页
文件大小: 0K
描述: IC LED DRVR HIGH BRIGHT SO8EP
标准包装: 1
恒定电流:
拓扑: 交直流离线开关,PWM
输出数: 1
内部驱动器:
类型 - 主要: 背光,通用
类型 - 次要: 高亮度 LED(HBLED)
频率: 25kHz ~ 300kHz
电源电压: 85 V ~ 277 VAC
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: AL9910AS-13DIDKR
AL9910/ AL9910A/ AL9910-5
Typical Ap pplications Circuit
D1
C3
V AC IN
BR1
C1
V DD
LD
V IN
AL99 910/A
GATE
Q1
L1
C2
PWM_D
CS
Pin Descri iptions
R OSC
R OSC
GN ND
R SENSE
Pin
Name
Pin Number r
SO-8 SO-8 8EP
Function
V IN
CS
GND
Gate
PWM_D
1
2
3
4
5
1
2
3
4
5
Input Volta age
LE
Senses ED string and ex xternal MOSFET switch current
Device Gr round
Drives the e gate of the exte ernal MOSFET s witch.
Low Frequ uency PWM Dim mming pin, also Enable input. Inte ernal 200k ? pull- down to GND.
Internally regulated supply y voltage.
7.5V nominal fo r AL9910 and AL L9910-5
V DD
6
6
10V nominal for r AL9910A.
Can supp ly up to 1 mA for r external circuitr ry. A sufficient sto orage capacitor i is used to provid e storage when
the rectifie ed AC input is ne ear the zero cros ssing.
LD
7
7
nt
Linear Dim mming Input. Cha anges the curren limit threshold at current sense comparator and changes the
average L LED current.
Oscillator Control. A resist tor connected be etween this pin a nd ground sets t he PWM frequen ncy. The devices s
R OSC
8
8
sw
can be witched into cons tant off time (PF M) mode by con necting the exter rnal oscillator res sistor between
R OSC pin and the gate of the external MOS SFET.
EP PAD
N/A
E P
Exposed Pad (bottom). Connect to GND directly undernea ath the package.
Functionaa l Block Dia agram
AL9910/ AL9 9910A/ AL991 0-5
Document number r: DS35103 Rev. 8 - 2
2 of 15
www.diodes.co m
December 2012 2
? Diodes Incorporate ed
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