Level Shifter. RT8900 Datasheet

RT8900 Shifter. Datasheet pdf. Equivalent

RT8900 Datasheet
Recommendation RT8900 Datasheet
Part RT8900
Description Level Shifter
Feature RT8900; RT8900 Level Shifter General Description The RT8900 is an 8-Channel level shifter suitable for TFT.
Manufacture Richtek
Datasheet
Download RT8900 Datasheet




Richtek RT8900
RT8900
Level Shifter
General Description
The RT8900 is an 8-Channel level shifter suitable for TFT-
LCD row drivers. The RT8900 will level shift a digital input
signal to an output voltage nearly equal to its output supply
voltages. The RT8900 has 3 supplies : VGH1 and VGH2
are positive supplies with a voltage range from 20V to
35V and VGL is the negative supply with a voltage range
from 5V to 10V. Outputs 0 to 5 are supplied from VGH1
and VGL. Outputs 6 and 7 are supplied from VGH2 and
VGL. This configuration enables outputs 0 to 5 to provide
slicing to the TFT-LCD row drivers to reduce flicker. VGH2
should be remained constant. The RT8900 is available in
TSSOP-20 and WQFN-20L 4x4 packages.
Ordering Information
RT8900
Package Type
C : TSSOP-20
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
RT8900
Package Type
QW : WQFN-20L 4x4 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
Z : ECO (Ecological Element with
Halogen Free and Pb free)
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z 0V to 6V Input Logic level Range
z 10V to 35V Output Voltage Range
z 15mA Output Continuous Current (per channel)
z 150mA Output Peak Current (per channel)
z Rise/Fall Times 9ns/10ns
z Propagation Delay 55ns
z 100kHz Input Frequency
z 15μA Ultra-low Quiescent Current
z 20-Lead TSSOP and WQFN 4x4 Packages
z RoHS Compliant and Halogen Free
Applications
z TFT-LCD Panels
Pin Configurations
GND
VIN0
VIN1
VIN2
VIN3
VIN4
VIN5
VIN6
VIN7
VGL
(TOP VIEW)
20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
TSSOP-20
VGH1
VOUT0
VOUT1
VOUT2
VOUT3
VOUT4
VOUT5
VOUT6
VOUT7
VGH2
20 19 18 17 16
VIN1 1
15 VOUT2
VIN2
VIN3
VIN4
VIN5
2
3
4
5
NC
21
14 VOUT3
13 VOUT4
12 VOUT5
11 VOUT6
6 7 8 9 10
WQFN-20L 4x4
DS8900-06 September 2011
www.richtek.com
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Richtek RT8900
RT8900
Marking Information
RT8900PC
RT8900
PCYMDNN
RT8900PC : Product Number
YMDNN : Date Code
RT8900GC
RT8900
GCYMDNN
RT8900GC : Product Number
YMDNN : Date Code
RT8900ZQW
DJ YM
DNN
DJ : Product Code
YMDNN : Date Code
Typical Application Circuit
VGL
VGH2
RT8900
VIN0
VIN1
VIN2
VIN3
VIN4
VIN5
VIN6
VIN7
VIN0
VIN1
VIN2
VIN3
VIN4
VIN5
VIN6
VIN7
VGL
VGH1
VOUT0
VOUT1
VOUT2
VOUT3
VOUT4
10µF* 0.1µF*
VOUT5
VOUT6
VGH2
VOUT7
10µF* 0.1µF*
GND
0.1µF*
10µF*
CL0 100pF*
CL1 100pF*
CL2 100pF*
CL3 100pF*
CL4 100pF*
CL5 100pF*
CL6 100pF*
CL7 100pF*
VGH1
VOUT0
VOUT1
VOUT2
VOUT3
VOUT4
VOUT5
VOUT6
VOUT7
* Rated Voltage = 50V
www.richtek.com
2
DS8900-06 September 2011



Richtek RT8900
RT8900
Functional Pin Description
Pin Number
TSSOP-20 WQFN-20L 4x4
Pin Name
Pin Function
1 19 GND
Ground.
2 to 9
20, 1 to 7
VIN0 to VIN7
Low-Voltage Input.
10 8 VGL
Negative Power Input for Channel 0 to 7.
11
9 VGH2
Positive Power Input for Channel 6 and 7.
12 to 19
10 to 17
VOUT7 to VOUT0 High-Voltage Output.
20 18 VGH1 Positive Power Input for Channel 0 to 5. (VGH1 VGH2)
-- 21 (Exposed Pad) NC
No Internal Connection. The Exposed Pad must be
soldered to a large PCB for maximum power dissipation.
Function Block Diagram
VGH1
VIN0 to VIN5
6ch
VIN6 to VIN7
2ch
VOUT0 to VOUT5
VGL
VOUT6 to VOUT7
GND
VGH2
DS8900-06 September 2011
www.richtek.com
3







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