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参数资料
| 型号： | SSL2103T/1,518 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 8/21页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER SMPS DIMM 14SOIC |
| 标准包装： | 1 |
| 拓扑： | PWM |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 通用 |
| 频率： | 10kHz ~ 130kHz |
| 电源电压： | 12 V ~ 28 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SO |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 100°C |
| 其它名称： | 568-6685-6 |
NXP Semiconductors
SSL2103
Dimmable Greenchip controller for LED lighting
drain
valley
secondary
stroke
RC
oscillator
primary
stroke
secondary
stroke
regulation level
B
secondary
ringing
A
014aab110
A: Start of new cycle with valley switching.
B: Start of new cycle in a classic PWM system.
Fig 6.
Signals for valley switching, flyback configuration
Figure 7 shows a typical curve for a reflected output voltage N at an output voltage of
80 V. This voltage is the output voltage transferred to the primary side of the transformer
with the factor N (determined by the turns ratio of the transformer). It shows that the
system switches exactly at minimum drain voltage for ringing frequencies of 480 kHz, thus
reducing the switch-on losses to a minimum. At 130 kHz, the next primary stroke is started
at 33 ? before the valley. The switch-on losses are still reduced significantly.
40
phase
( ° )
20
0
? 20
014aab111
? 40
0
200
400
600
800
f (kHz)
Fig 7.
Typical phase of drain ringing at switch-on (at N ? V o = 80 V)
SSL2103
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2.2 — 5 December 2011
? NXP B.V. 2011. All rights reserved.
8 of 21
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