The CXSU63137 integrates with a high-performance step-up converter, two linear-regulator controllers, a high voltage switch and one (CXSU63137), three (CXSU63137-1) or five (CXSU63137-2)
目录
1.产品概述 2.产品特点
3.应用范围 4.下载产品资料PDF文档
5.产品封装图</span> 6.电路原理图</span>
7.功能概述 8.相关产品
一,产品概述(General Description)
The CXSU63137 integrates with a high-performance step-up converter, two linear-regulator controllers, a high voltage switch and one (CXSU63137), three (CXSU63137) or five (CXSU63137) high current operational amplifiers for TFT-LCD applications.The main step-up regulator is a current-mode, fixed-fre-quency PWM switching regulator. The 1.2MHz switching frequency allows the usage of low-profile inductors and ceramic capacitors to minimize the thickness of LCD panel designs.
The linear-regulator controllers used external transistors provide regulated the gate-driver of TFT-LCD VGON and VGOFF supplies.
The amplifiers are ideal for VCOM and VGAMMA applications, with
150m A peak output current drive, 10MHz bandwidth, and 13V/μs slew
rate. All inputs and outputs are rail-to-rail.
The CXSU63137/1/2 is available in a tiny 5mm x 5mm 32-pin QFN package (TQFN5x5-32).
二.产品特点(Features)
· 2.6V to 6.5V Input Supply Range
· Current-Mode Step-Up Regulator
- Fast Transient Response
- 1.2MHz Fixed Operating Frequency
· ±1.5% High-Accuracy Output Voltage
· 3A, 20V, 0.25W Internal N-Channel MOSFET
· High Efficiency
· Low Quiescent Current (0.6mA Typical)
· Linear-Regulator Controllers for VGON and VGOFF
· High-performance Operational Amplifiers
- ±150mA Output Short-Circuit Current
- 13V/ms Slew Rate - 10MHz, -3dB Bandwidth
- Rail-to-Rail Inputs/Outputs
· Fault-Delay Timer and Fault Latch for All Regulator Outputs
· Over-Temperature Protection
· Available in Compact 32-pin 5mmx5mm Thin QFN Package (TQFN5x5-32)
· Lead Free Available (RoHS Compliant)
三</span>,应用范围 (Applications)
TFT LCD Displays for Monitors
TFT LCD Displays for Notebook Computers
Automotive Displays
四.下载产品资料PDF文档
需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持</span>!</span>


Pin Function Description
Pin | Name | Function Description | ||
CXSU63137 | CXSU63137-1 | CXSU63137-2 | ||
1 | SRC | SRC | SRC | Switch Input. Source of the internal high-voltage P-channel MOSFET. Bypass |
2 | REF | REF | REF | Reference voltage output. Bypass REF to AGND with a minimum of |
3 | AGND | AGND | AGND | Analog Ground for Step-Up Regulator and Linear Regulators. Connect to |
4 | PGND | PGND | PGND | Power Ground for Step-Up Regulator. PGND is the source of the main step-up |
5 | OUT1 | OUT1 | OUT1 | Output of Operational-Amplifier 1 |
6 | NEG1 | NEG1 | NEG1 | Inverting Input of Operational-Amplifier 1 |
7 | POS1 | POS1 | POS1 | Non-inverting Input of Operational-Amplifier 1 |
8 | NC | OUT2 | OUT2 | Output of Operational-Amplifier 2 of CXSU63137/CXSU63137. No internal |
9 | NC | NEG2 | NEG2 | Inverting Input of Operational-Amplifier 2 of CXSU63137/CXSU63137. No internal |
10 | IC | POS2 | POS2 | Non-inverting Input of Operational-Amplifier 2 of CXSU63137/CXSU63137. Internal |
11 | BGND | BGND | BGND | Analog Ground for Operational Amplifiers. Connect to power ground (PGND) |
12 | NC | NC | POS3 | Non-inverting Input of Operational-Amplifier 3 of CXSU63137. No internal |
13 | NC | NC | OUT3 | Output of Operational-Amplifier 3 of CXSU63137. No internal connected ofCXSU63137/CXSU63137. |
14 | SUP | SUP | SUP | Power Input of Operational Amplifiers. Typically connected to VMAIN. Bypass |
15 | NC | POS3 | POS4 | Non-inverting Input of Operational-Amplifier 4 of CXSU63137. Non-inverting |
16 | NC | NEG3 | NEG4 | Inverting Input of Operational-Amplifier 4 of CXSU63137. Inverting Input of |
17 | NC | OUT3 | OUT4 | Output of Operational-Amplifier 4 of CXSU63137. Output of |
18 | IC | IC | POS5 | Non-inverting Input of Operational-Amplifier 5 of CXSU63137. Internal connected |
19 | NC | NC | NEG5 | Inverting Input of Operational-Amplifier 5 of CXSU63137. No internal connected |
20 | NC | NC | OUT5 | Output of Operational-Amplifier 5 of CXSU63137. No internal connected ofCXSU63137/CXSU63137. |
21 | LX | LX | LX | N-Channel Power MOSFET Drain and Switching Node. Connect the inductor |
22 | IN | IN | IN | Supply Voltage Input. Bypass IN to AGND with a 0.1μF capacitor. IN can range |
23 | FB | FB | FB | Step-Up Regulator Feedback Input. Connect a resistive voltage-divider from |
24 | COMP | COMP | COMP | Step-Up Regulator Error-Amplifier Compensation Point. Connect a series RC |
PinFunction Description
Pin | Name | Function Description | ||
CXSU63137 | CXSU63137-1 | CXSU63137-2 | ||
24 | COMP | COMP | COMP | Step-Up Regulator Error-Amplifier Compensation Point. Connect a series RC |
25 | FBP | FBP | FBP | Gate-On Linear-Regulator Feedback Input. Connect FBP to the center of a |
26 | DRVP | DRVP | DRVP | Gate-On Linear-Regulator Base Drive. Open drain of an internal n-channel |
27 | FBN | FBN | FBN | Gate-Off Linear-Regulator Feedback Input. Connect FBN to the center of a |
28 | DRVN | DRVN | DRVN | Gate-Off Linear-Regulator Base Drive. Open drain of an internal p-channel |
29 | DEL | DEL | DEL | High-Voltage Switch Delay Input. Connect a capacitor from DEL to AGND to |
30 | CTL | CTL | CTL | High-Voltage Switch Control Input. When CTL is high, the high-voltage switch |
31 | DRN | DRN | DRN | Switch Input. Drain of the internal high-voltage back-to-back P-channel |
32 | COM | COM | COM | Internal High-Voltage MOSFET Switch Common Terminal. Do not allow the |
|
Switching Regulator > Boost Converter | |||||||||||
Part_No | Package | Archi-tecture | Input Voltage | Max Adj. Output Voltage | Switch Current Limit (max) | Fixed Output Voltage | Switching Frequency | Internal Power Switch | Sync. Rectifier | ||
min | max | min | max | (A) | (V) | (kHz) | |||||
SOT89 | VM | 0.9 | 5.5 | 2.5 | 5.5 | 0.5 | 1.8|2.6|2.8|3 |3.3|3.8|4.5|5 | - | No | Yes | |
MSOP8|TSSOP8 |SOP8 | VM | 2.5 | 5.5 | 2.5 | - | - | - | 200 ~ 1000 | No | No | |
TSSOP8|SOP-8P | VM | 1 | 5.5 | 2.5 | 5 | 1 | 2.5|3.3 | 300 | Yes | Yes | |
SOP8 | CM | 3 | 40 | 1.25 | 40 | 1.5 | - | 33 ~ 100 | Yes | No | |
TQFN5x5-32 | CM | 2.5 | 6.5 | 2.5 | 18 | 3 | No | 1200 | Yes | No | |
TSOT23-5 TDFN2x2-6 | CM | 2.5 | 6 | 2.5 | 20 | 2 | - | 1500 | Yes | No | |
TQFN4x4-6 TDFN3x3-12 | CM | 1.8 | 5.5 | 2.7 | 5.5 | 5 | - | 1.2 | Yes | Yes | |
SOT23-5 | CM | 2.5 | 6 | 2.5 | 32 | 1 | - | 1000 | Yes | No | |
TSOT-23-6 TDFN2x2-8 | CM | 1.2 | 5.5 | 1.8 | 5.5 | 1.2 | - | 1.2 | Yes | Yes | |


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