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| 型号： | SSL1750T/N1,518 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 19/29页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR HI PWR AC IN 16-SOIC |
| 标准包装： | 2,500 |
| 拓扑： | 交直流离线开关，反激式，PFC |
| 输出数： | 2 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 通用 |
| 频率： | 100kHz ~ 150kHz |
| 电源电压： | 70 V ~ 276 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SO |
| 包装： | 带卷 (TR) |
| 工作温度： | -20°C ~ 150°C |
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NXP Semiconductors
SSL1750
SMPS control IC for LED drivers
7.3.9 Overcurrent protection (pin FBSENSE)
The primary peak current in the transformer is measured accurately cycle-by-cycle using
the external sense resistor R SENSE2 . The OCP circuit limits the voltage on pin FBSENSE
to an internal level (see also Section 7.3.3 ). The OCP detection is suppressed during the
leading edge blanking period, t leb , to prevent false triggering caused by switch-on spikes.
LEB (t leb )
OCP LEVEL
V FBSENSE
t
014aaa022
Fig 14. OCP leading edge blanking
7.3.10 Driver (pin FBDRIVER)
The driver circuit to the gate of the external power MOSFET has a current sourcing
capability of typically 500 mA and a current sink capability of typically 1.2 A. This permits
fast turn-on and turn-off of the power MOSFET for ef?cient operation.
8. Limiting values
Table 3. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
Voltages
V CC
supply voltage
? 0.4
+38
V
V LATCH
V FBCTRL
V PFCCOMP
voltage on pin LATCH
voltage on pin FBCTRL
voltage on
current limited
? 0.4
? 0.4
? 0.4
+5
+5
+5
V
V
V
pin PFCCOMP
V VINSENSE
voltage on
? 0.4
+5
V
pin VINSENSE
V VOSENSE
voltage on
? 0.4
+5
V
pin VOSENSE
V PFCAUX
voltage on pin PFCAUX
? 25
+25
V
V FBSENSE
voltage on
current limited
? 0.4
+5
V
pin FBSENSE
V PFCSENSE voltage on
current limited
? 0.4
+5
V
pin PFCSENSE
V HV
voltage on pin HV
? 0.4
+650
V
Currents
I FBCTRL
I FBAUX
I PFCSENSE
current on pin FBCTRL
current on pin FBAUX
current on
? 3
? 1
? 1
0
+1
+10
mA
mA
mA
pin PFCSENSE
SSL1750_1
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 15 September 2008
19 of 29
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相关代理商/技术参数 |
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|---|---|
| SSL1A12ND | 制造商:Schneider Electric 功能描述:SSR Slim 1 Chann, 2A@24-280VAC zero, 38-72VDC |
| SSL1D03BD | 制造商:Schneider Electric 功能描述:SSR Slim 1 Channel, 3.5A@1-24VDC, 15-30VDC |
| SSL1D03JD | 制造商:Schneider Electric 功能描述:SSR Slim 1 Channel, 3.5A@1-24VDC, 3-12VDC |
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