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LED2000 数据表(PDF) 6 Page - STMicroelectronics

部件名 LED2000
功能描述  3 A monolithic step-down current source with synchronous rectification
PDF  40 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LED2000 数据表(HTML) 6 Page - STMicroelectronics

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Pin settings
LED2000
6/40
DocID023432 Rev 4
1
Pin settings
1.1
Pin connection
Figure 2. Pin connection (top view)
1.2
Pin description
1
45
8
SW
PGND
VINA
VINSW
GND
AGND
FB
NC
VFQFPN
SO8 - BW
DIM
DIM
AM12893v1
Table 1. Pin description
Package/pin
Type
Description
VFQFPN
S08-BW
13
VINA
Analog circuitry power supply connection
24
DIM
Dimming control input. Logic low prevents the switching
activity, logic high enables it. A square wave on this pin
implements LED current PWM dimming. Connect to VINA if
not used (see Section 6.6)
35
FB
Feedback input. Connect a proper sensing resistor to set the
LED current
4
6
AGND
Analog circuitry ground connection
5
-
NC
Not connected
68
VINSW
Power input voltage
7
1
SW
Regulator switching pin
8
2
PGND
Power ground
-
7
GND
Connect to AGND



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