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参数资料
| 型号： | IR21571STRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 13/18页 |
| 文件大小： | 0K |
| 描述： | IC BALLAST CONTROL INTEG 16-SOIC |
| 标准包装： | 2,500 |
| 类型： | 镇流器控制器 |
| 频率： | 45.5 ~ 50.5 kHz |
| 电流 - 电源： | 5.5mA |
| 电流 - 输出： | 500mA |
| 电源电压： | 11.4 V ~ 15.6 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC N |
| 包装： | 带卷 (TR) |
IR21571(S) & (PbF)
+ rectified
AC Line
+ V BUS
VDC
5
3
VDC
CPH
1
2
16
15
HO
VS
R GHS
C BLOCK
L RES
CT
CPH
4
8
RPH
RT
RUN
CT
DT
OC
3
4
5
6
7
8
14
13
12
11
10
9
VB
VCC
COM
LO
CS
SD
C BS
D BOOT
C VCC
R3
R Supply
R GLS
R4
D1
R5
C SNUBBER
D2
C RES
15
C2
R CS
V BUS return
LO
15
Figure 12: Lamp presence detection circuit
connection (shaded area)
HO-VS
SD
2
RUN mode
Low VDC
Restart
4
Figure 11: VDC lead fault and auto restart
Lamp Presence Detection and
CT
CPH
8
Automatic Restart
15
The second protection lead, SD, is used for both
unlatched shutdown and automatic restart functions.
The SD lead would normally be connected to an
external circuit which senses the presence of the
lamp (or lamps), as shown in Figure 12.
LO
15
HO-VS
When the SD lead exceeds 2.0V (approximately
150mV of hysteresis is included to increase noise
immunity), signaling either a lamp fault or lamp
RUN mode
SD mode
Restart
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 into the fixture, the SD lead would be pulled
back to near the ground potential. Under these
www.irf.com
Figure 13: SD lead fault and auto restart
conditions a reset signal would restart the chip from
the beginning of the control sequence, as shown in
the timing diagram in Figure 13.
13
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| IR21592 | 功能描述:IC CTRLR BALLAST DIMMING 16-DIP RoHS:否 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 |
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