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參數(shù)資料
| 型號： | LM2711 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | TFT Panel Module |
| 中文描述： | 液晶面板模塊 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 846K |
| 代理商： | LM2711 |
Pin Functions
V
SW
(Pin 1):
This is the drain of the internal NMOS power
switch. Minimize the metal trace area connected to this pin to
minimize EMI.
V
IN
(Pin 2):
Input Supply Pin. Bypass this pin with a capacitor
as close to the device as possible. The capacitor should
connect between V
IN
and GND.
SHDN(Pin 3)
: Shutdown Pin. The shutdown pin signal is
active low. A voltage of less than 0.3V disables the device. A
voltage greater than 0.85V enables the device.
FSLCT(Pin 4):
Frequency Select Pin. Connecting FSLCT to
AGND selects a 600 kHz operating frequency for the switch-
ing regulator. Connecting FSLCT to V
IN
selects a 1.25 MHz
operating frequency. If FSLCT is left floating, the switching
frequency defaults to 600 kHz.
Vs+(Pin 5):
Supply pin for the four Gamma buffers. Bypass
this pin with a capacitor as close to the device as possible.
The capacitor should connect between Vs+ and GND.
GMA1-in(Pin 6):
Gamma Buffer input pin.
GMA2-in(Pin 7):
Gamma Buffer input pin.
GMA3-in(Pin 8):
Gamma Buffer input pin.
GMA4-in(Pin 9):
Gamma Buffer input pin.
NC(Pin 10):
No Connection.
NC(Pin 11):
No Connection.
Ordering Information
GMA4-out(Pin 12):
Gamma Buffer output pin.
GMA3-out(Pin13):
Gamma Buffer output pin.
GMA2-out(Pin 14):
Gamma Buffer output pin.
GMA1-out(Pin 15):
Gamma Buffer output pin.
SS(Pin 16):
Softstart pin. Connect capacitor to SS pin and
AGND to slowly ramp inductor current on startup.
V
C
(Pin 17):
Compensation Network for Boost switching
regulator. Connect resistor/capacitor network between V
C
pin and AGND for boost switching regulator AC compensa-
tion.
FB(Pin 18):
Feedback pin. Set the output voltage by select-
ing values of R1 and R2 using:
Connect the ground of the feedback network to the AGND
plane, which can be tied directly to the GND pin.
AGND(Pin 19):
Analog ground pin. Ground connection for
the Gamma buffers and the boost switching regulator.AGND
must be tied directly to GND at the pins.
GND(Pin 20):
Power ground pin. Ground connection for the
NMOS power device of the boost switching regulator. GND
must be tied directly to AGND at the pins.
Order Number
LM2711MT-ADJ
LM2711MTX-ADJ
Package Type
TSSOP-20
TSSOP-20
NSC Package Drawing
MTC20
MTC20
Supplied As
73 Units, Rail
2500 Units, Tape and Reel
L
www.national.com
3
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| LM2711A-ADJ WAF | 制造商:Texas Instruments 功能描述: |
| LM2711MT-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TFT Panel Module |
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