G1588
Global Mixed-mode Technology
10-CH Level Shifter Integrated with Gate Power
Features
General Description
The G1588 integrated one VGON boost converter with a
high voltage level shifter. This device is suitable for
GOA TFT-LCD panel applications.
Input Supply Range: 2.6V~5.5V
Current Mode Boost Controller for VGON
Fixed 600kHz Switching Frequency
Integrated 45V/1.5A,1.3Ω Switching NMOS
Input voltage, VINP=4.5V to 15V
Output Voltage, VGON = 17V to 39V
Up 80% Efficiency (5mA < Load Current)
Up 75% Efficiency (100mA < Load Current)
2% Output Regulation
The VGON boost converter is a current mode regulator
with a temperature compensation feature. The output
voltage is adjusted according to the voltage on the VT
pin (temperature reading) and the voltage level is set
by voltage reference on the END pin. This boost con-
verter has an integrated 45V/1.3Ω NMOS switch and a
fixed 600kHz switching frequency. It provides fast
transient response to pulsed loading while achieving
efficiency over 85%.
Built-In Power on Sequence and Soft Start Function
Protection Function
Input Under Voltage Lockout (UVLO)
Thermal Overload Protection (TOP)(150°C)
Output Over Voltage Protection for VGON
(OVP) (39V)
Over Current Protection for VGON
(OCP) (1.5A typ.)
The level shifters transform the logic-level controlled
signals, which are generated by the display timing
controller (TCON), into the high-level signals needed
by LCD panel. Different CKH1~6 output patterns will
be generated by different external settings. Each
channel of level shifter output uses low impedance
transistors to achieve fast rising and falling time, even
when driving the capacitive loads present in LCD ap-
plications.
Output Under Voltage Protection
(UVP) (FBG≦0.8V)
Thermal Compensation Function
VGON temperature compensation
Vcom temperature compensation
10-Channel Level Shifter
G1588 can also be used as a stand-alone level shifter.
Connecting SHD to GND can disable whole boost
function, shut down function, temperature compensa-
tion function, UVP, OCP except for XON function.
+45V Highest Voltage Level
-30V Lowest Voltage Level
Maximum 700ns Rising/Falling Time
500mA Peak Current
G1588 features extensive protection functions that in-
clude UVLO, OVP, UVP, OCP and OTP. The device
operates over the temperature range of -40°C to +85°C.
20mA Continuous Current
40-pin, TQFN(5mmx5mm) Package
RoHS Compliant
G1588 is available in a 5mmx5mm 40-lead TQFN
Package.
Applications
GOA TFT-LCD Panel
Ordering Information
ORDER
NUMBER
TEMP.
RANGE
PACKAGE
(Green)
MARKING
G1588RG1U
1588
-40°C~+85°C
TQFN5X5-40
Note: RG:TQFN5X5-40
1: Bonding code
U: Tape & Reel
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.4
Oct 03, 2013
1
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