SD6921S_评估板说明书_1.0
SD6921S
评估板说明书
8W LED 驱动器
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士兰微电子
目 ½
1.
SD6921S
评估板说明书
LED
驱动基本规格
............................................................................................................................................................ 2
1.1.
1.2.
1.3.
1.4.
1.5.
输入特性
............................................................................................................................................................. 2
输出特性
............................................................................................................................................................. 2
性½说明
............................................................................................................................................................. 2
保护特点
............................................................................................................................................................. 2
工½环境
............................................................................................................................................................. 2
原理图
................................................................................................................................................................. 2
元器件表
............................................................................................................................................................. 3
PCB
文件
............................................................................................................................................................ 3
变压器设计
.......................................................................................................................................................... 4
2.4.1.
2.4.2.
2.4.3.
2.5.
电感结构
................................................................................................................................................. 4
电感量设计及测试
................................................................................................................................... 4
原副边绕组绕制方法
............................................................................................................................... 4
2.
LED
驱动文件资料
............................................................................................................................................................ 2
2.1.
2.2.
2.3.
2.4.
DEMO
外观图
..................................................................................................................................................... 4
性½亮点
............................................................................................................................................................. 5
整机性½概要
...................................................................................................................................................... 5
测试设备
............................................................................................................................................................. 5
输入特性
............................................................................................................................................................. 5
3.4.1.
3.4.2.
效率
........................................................................................................................................................ 5
PF ........................................................................................................................................................... 5
LED
电流调整率
...................................................................................................................................... 6
LED
电流温度特性
.................................................................................................................................. 6
LED
电流纹波
......................................................................................................................................... 6
LED
电流过冲
......................................................................................................................................... 6
启动延时
................................................................................................................................................. 7
3.
性½测试评估
.................................................................................................................................................................... 5
3.1.
3.2.
3.3.
3.4.
3.5.
输出特性
............................................................................................................................................................. 6
3.5.1.
3.5.2.
3.5.3.
3.5.4.
3.5.5.
4.
保护功½
........................................................................................................................................................................... 8
4.1.
4.2.
4.3.
过压保护
............................................................................................................................................................. 8
输出短路保护
...................................................................................................................................................... 8
其它数据与波½
................................................................................................................................................... 9
4.3.1.
4.3.2.
MOSFET VDS
和整流二极管反向电压
Vrm ........................................................................................... 9
功率管
VDS
与采样电阻电压
Vcs............................................................................................................ 9
杭州士兰微电子股½有限公司
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页 第
1
页
士兰微电子
1. LED
驱动基本规格
1.1.
SD6921S
评估板说明书
输入特性
交流输入额定电压范围
交流输入电压范围
交流输入电压频率范围
100Vac½240Vac
90Vac½264Vac
47Hz½63Hz
1.2.
输出特性
输出电压
输出电流
输出电流精度
30V~50V
0.16A
±3%
1.3.
性½说明
最大输出功率(Po_max)
效率(ŋ)
功率因素(PF)
开机延迟时间
EMI(EN55015)
8W
>86.09%(通过认证)
>0.90
<1.056S @90Vac
满½½
PASS
1.4.
保护特点
输出短路保护
输出开路保护
自动重启
自动重启
1.5.
工½环境
工½温度范围
贮存温度范围
-40°
C½+85°
C
-40°
C½+120°
C
2. LED
驱动文件资料
2.1.
原理图
L2
R9
LED +
R1
D1
R4
R10
R11
SD6921S
Drain
5
Drain
6
L1
4
ZCD
B1
F1
C1
C2
R2
R6
R5
R3
3
COMP
2
CS
1
Vcc
C3
C4
U1
Vac Input
RS1
GND
7
D2
RS2
R8
R7
C5
C6
LED -
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士兰微电子
2.2.
元器件表
符号
R1、R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
RS1
RS2
C1
C2
C3
C4
C5
C6
B1
D1
D2
L1
L2
U1
F1
数量
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SD6921S
评估板说明书
描述
510KΩ ±5%-1206
表贴
150Ω ±5%-0805
表贴
100KΩ ±
5% -1206
表贴
18KΩ ±5%-0805
表贴
7.5KΩ ±5%-1206
表贴
200KΩ ±5%-0805
表贴
47Ω ±5%-1206
表贴
NULL
0Ω ±5%-1206
表贴
120KΩ ±5%-0805
表贴
2.0Ω ±5%-1206
表贴
2.2Ω ±5%-1206
表贴
47nF/400V Film
100nF/400V Film
10μF/50V ±10%-1206
表贴
2.2μF/50V ±
10%-0805
表贴
220μF/63V 105°C
铝电解
150PF/1KV ±
10%-1206
表贴
MB6S
1A/1000V
SEI
SEI
SEI
SEI
SEI
SEI
SEI
NULL
SEI
SEI
SEI
SEI
Panasonic
Panasonic
Murata
Murata
SANCON
Murata
DIODES
DIODES
DIODES
TDG.
N/A
Silan
N/A
供应商
编号
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
ES1J 1A/600V
US2J
2A/600V
电感,EE10,1mH,Φ0.21mm
电感,T6*8,6mH ,0.5A
SD6921S,控制芯片,SOP-7
1A/250Vac
2.3.
PCB
文件
顶层丝印
杭州士兰微电子股½有限公司
http: //www.silan.com.cn
底层丝印
版本号:1.0
共
12
页 第
3
页