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| 型号： | IR2167S |
| 厂商： | International Rectifier |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | PFC Ballast Control. Thermal Overload Protection. Brown Out Protection. Programmable Preheat and Frequency. Programmable Deadtime in a 20 Lead SOIC package |
| 中文描述： | PFC的镇流器控制。热过载保护。欠压保护。可编程预热和频率。可编程死区时间在20引脚SOIC封装 |
| 文件页数： | 22/30页 |
| 文件大小： | 937K |
| 代理商： | IR2167S |
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IR2167(
S
)
22
www.irf.com
RUN mode
Low VDC
CT
4
VDC
3
5
CPH
8
LO
15
HO-VS
15
Restart
Figure 13:
VDC lead fault and auto restart
Lamp Presence and End-of-Life Detection
The second protection pin, SD, is used for both shutdown
and end-of-life detection. The SD pin would normally be con-
nected to an external circuit that senses the presence of the
lamp(s) and the voltage appearing across the lamp(s). An
example circuit for a single lamp is shown in Figure 14. During
all modes of operation if the SD pin exceeds 5.1V (approxi-
mately 150mV of hysterisis is included to increase noise
immunity), signaling either a lamp fault or lamp removal, the
oscillator is disabled, both gate driver outputs are pulled low,
and the chip is put into the micropower mode. Since a lamp
fault would normally lead to a lamp exchange, when a new
lamp is inserted in the fixture, the SD pin would be pulled
back to near ground potential. Under these conditions a
reset signal would restart the chip from the beginning of the
control sequence, as shown in the timing diagram in Figure
15.
Thus, for a lamp removal and replacement, the ballast
automatically restarts the lamp in the proper man
ner.
In the Run mode there are two additional thresholds
enabled on the SD pin: 1V and 3V. These thresholds form a
window and during normal lamp running the voltage
appearing at the SD pin is maintained within these two levels.
As a lamp nears its end-of-life, its running voltage will increase
and the signal applied to the SD pin detects this by exceeding
the window threshold width. The oscillator is disabled, both
gate driver outputs are pulled low, and the chip is put into the
micropower mode.
+ V
BUS
+ rectified
AC Line
V
BUS
return
C
BS
D
BOOT
R
Supply
C
VCC
R
CS
L
RES
C
RES
R
GHS
R
GLS
C
BLOCK
C
SNUBBER
R4
R3
R5
C2
D1
D2
1
2
3
4
5
6
7
8
20
19
18
17
16
15
14
13
I
VDC
CPH
RPH
RT
RUN
CT
DT
OC
LO
COM
VCC
VB
VS
HO
SD
CS
11
12
10
9
COMP
ZX
PFC
VBUS
C4
C3
D3
R7
R6
Figure 14:
Lamp presence detection circuit connection
(shaded area)
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相关代理商/技术参数 |
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|---|---|
| IR2167SPBF | 功能描述:IC CTLR BALLAST PFC 20-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| IR2167STRPBF | 功能描述:功率因数校正 IC PFC Ballast Control, Thermal Overload Protection, RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| IR2170 | 功能描述:IC CURRENT SENSE 600V 1MA 8-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳流/电流管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 功能:电流开关 检测方法:- 精确度:±10% 输入电压:1.7 V ~ 5.5 V 电流 - 输出:600mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-UFQFN 供应商设备封装:10-UTQFN（1.4x1.8） 包装:管件 |
| IR2170S | 功能描述:IC CURRENT SENSE 600V 1MA 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳流/电流管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 功能:电流开关 检测方法:- 精确度:±10% 输入电压:1.7 V ~ 5.5 V 电流 - 输出:600mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-UFQFN 供应商设备封装:10-UTQFN（1.4x1.8） 包装:管件 |
| IR2171 | 制造商:IRF 制造商全称:International Rectifier 功能描述:LINEAR CURRENT SENSING IC |
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