TPS65190RHDR - 10-Channel LCD Level Shifter | Texas Instruments
MPN: TPS65190RHDR ✓ Hoạt độngTPS65190RHDR Tóm tắt
A voltage level shifter is an interface IC that translates logic-signal voltage ranges between two electrical domains. The TPS65190 belongs to the level-shifter and LCD-driver hierarchy, where the level-shifter channels support TFT-LCD source and gate-driver interfaces while the VCOM buffer conditions the common LCD reference voltage. Integrating these functions in one device reduces the number of separate interface components required in a display timing-control system.
The primary feature is support for 10 level-shifter channels in a compact 28-VQFN package. Texas Instruments describes low-impedance output stages that provide fast rise and fall times even when driving significant capacitive loads. Two independently supplied positive voltage groups allow the display interface to operate with different positive supply levels, while both groups share the negative VGL supply. This architecture provides flexibility when source-driver and gate-driver circuitry use different voltage requirements.
The TPS65190 also integrates a VCOM operational amplifier. VCOM is the common reference applied across LCD pixels and must remain stable for correct display contrast and image quality. Buffering VCOM near the display timing-control electronics helps isolate the reference from source impedance and load transients. The VQFN package provides a high pin count for ten data paths, power connections, ground returns, and the VCOM buffer while remaining suitable for compact large-format display designs.
Typical uses include LCD televisions, computer monitors, industrial panel displays, digital signage, and other large TFT-LCD systems. The device is particularly relevant when a display controller uses voltage levels different from those required by the panel gate and source drivers. System design must account for trace capacitance, channel timing, supply sequencing, and the voltage ranges supported by the connected display drivers.
When laying out the PCB, place the device near the interface between the timing controller and LCD panel, minimize routing between level-shifter outputs and panel inputs, and provide short, low-impedance supply connections. Decoupling capacitors should be placed at the relevant supply pins. The exposed thermal pad and the ground pins should be connected to an uninterrupted ground plane according to the manufacturer land-pattern guidance.
This page consolidates verified manufacturer and distributor information, documents unavailable specifications rather than estimating them, distinguishes the confirmed same-package family candidate from unsupported replacements, and provides application and layout guidance beyond a raw catalog listing.
Bộ thay thế dễ dàng lắp đặt cho TPS65190RHDR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TPS65190RHDR (cùng hình factor và footprint).
TPS65192RHDR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TPS65190RHDR Thông số kỹ thuật
| Product Type | 10-channel level shifter and VCOM buffer |
| Number of Level-Shifter Channels | 10 channels |
| Positive Level-Shifter Supply Groups | 2 groups |
| Common Negative Supply | VGL |
| VCOM Buffer | Integrated operational amplifier |
| Output Stage | Low impedance |
| Khoảng nhiệt độ hoạt động | -40°C to +85°C |
| Hộp | 28-pin VQFN (RHD) |
| Package Dimensions | 5 mm x 5 mm |
| Kiểu lắp đặt | Surface mount |
Hướng dẫn cấu hình chân TPS65190RHDR 5 mm x 5 mm
Cấu hình chân cho TPS65190RHDR (5 mm x 5 mm gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho TPS65190RHDR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TPS65190RHDR phù hợp cho 6 Áp dụngs: LCD Television Gate and Source Interfaces, Computer Monitor Panel Interfaces, Industrial Panel Displays, Digital Signage Displays, Medical Diagnostic Displays, Automotive and Transportation Displays.
LCD Television Gate and Source Interfaces
The TPS65190RHDR fits an LCD television interface where ten level-shifter channels and a local VCOM reference are needed close to the panel timing controller. Its two positive-supply groups can be tied when every level-shifter channel uses one positive rail, while the shared VGL supply serves both groups. Texas Instruments specifies low-impedance outputs for fast rise and fall times under significant capacitive loading. The 28-pin 5 mm by 5 mm VQFN also places the interface circuitry close to panel connections, helping control routing length and external driver delay.
Computer Monitor Panel Interfaces
The TPS65190RHDR is applicable to large computer monitors that translate timing-controller signals into the voltage domains required by TFT-LCD source and gate drivers. Ten level-shifter channels provide dedicated paths for compatible display signals, and the integrated VCOM buffer supplies the common pixel-reference function within the interface section. Its -40°C to +85°C range supports extended commercial and industrial monitor environments. Exact channel direction, voltage limits, timing, and VCOM drive must be matched to the selected panel before schematic release.
Industrial Panel Displays
The TPS65190RHDR can support industrial panel displays where the timing controller and source or gate drivers operate across different voltage domains. The two positive-supply groups provide configuration flexibility, while both groups can use the common negative VGL rail. Its extended -40°C to +85°C operating range is relevant to factory, medical-display, and control-room equipment. Designers should still verify panel startup behavior, signal polarity, capacitive loading, thermal performance, and electromagnetic-emissions compliance using the complete manufacturer datasheet.
Digital Signage Displays
For digital-signage systems, the TPS65190RHDR combines ten level-shifter channels with an integrated VCOM amplifier in a compact surface-mount package. This consolidation is useful where the display timing electronics must remain close to the LCD panel and low-impedance outputs are needed to drive appreciable capacitance. The 5 mm by 5 mm 28-VQFN can help conserve board area compared with separate level shifters and a VCOM buffer. Final validation should include cable- or connector-induced transients, panel operating-temperature limits, and power-supply sequencing.
Medical Diagnostic Displays
The TPS65190RHDR may be used in a medical diagnostic monitor when the display architecture requires ten translated logic levels and a buffered VCOM reference. Integrating the level-shifter and VCOM functions reduces the number of discrete display-interface components, while the -40°C to +85°C rating can assist product thermal planning. Medical-device suitability is not established by this rating alone. The complete design must address electrical safety, risk management, display-performance verification, applicable medical standards, and validation of the selected panel interface.
Automotive and Transportation Displays
The TPS65190RHDR can support high-information LCD panels used in automotive or transportation systems when its electrical limits meet the display requirements. The ten channels, dual positive-supply groups, common VGL architecture, and integrated VCOM buffer simplify the interface between a graphics processor and TFT-LCD drivers. Its -40°C to +85°C range covers many ambient environments, but the verified data does not establish AEC-Q100 qualification. Automotive designs therefore require additional qualification, EMC validation, and fault analysis before production release.
Dữ liệu tham khảo kỹ thuật cho TPS65190RHDR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
TPS65192RHDR is the only same-package candidate identified in the verified comparison material, but it should be considered a redesign candidate rather than an automatic substitution. Select it only after comparing its pin map, channel count, supply ranges, timing, and VCOM performance against the TPS65190 datasheet. No cross-brand drop-in replacement was supported by the retrieved evidence. Consequently, engineers should redesign around the TPS65190 or obtain written manufacturer cross-reference confirmation rather than assume that a same-sized VQFN is electrically interchangeable.
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TPS65192RHDR |
|---|---|---|
| Package | 28-pin VQFN (RHD), 5 mm x 5 mm | 28-pin VQFN (RHD), 5 mm x 5 mm |
| Brand | Texas Instruments | Texas Instruments |
Bảo phân biệt quan trọng
- Combines ten level-shift paths and VCOM buffering (vsTPS65192RHDR)
- Supports two positive level-shifter supply groups (vsTPS65192RHDR)
- Low-impedance output stages for capacitive panel loads (vsTPS65192RHDR)
- Compact 28-VQFN integration (vsTPS65192RHDR)
Ghi chú thiết kế
Place the TPS65190RHDR close to the display timing interface and minimize the distance from each level-shifter output to the corresponding LCD-panel input. Keep supply and ground connections short, place decoupling capacitors at the relevant device pins, and route high-capacitance panel traces away from adjacent signal paths. Use the manufacturer VQFN land pattern and exposed-pad connection exactly as shown in the official datasheet.
Confirm whether the two positive level-shifter supplies require independent voltages. Texas Instruments states that they may be tied when one positive voltage serves every channel, but independent use also supports panels whose source and gate-driver domains differ. Verify each rail against the absolute maximum and recommended operating limits, observe the common negative VGL requirement, and define power-up and power-down sequencing before connecting the panel interface.
Validate rise time, fall time, settling, and channel-to-channel skew at the panel connector rather than assuming the low-impedance output specification alone guarantees interface performance. Include panel-cable capacitance and connector parasitics in the evaluation. If timing margin is limited, shorten output routing, use controlled-impedance routing where appropriate, and measure the actual gate and source waveforms at the LCD input.
The RHD package uses a thermal pad and multiple power and ground connections, so its heat-spreading performance depends on the PCB copper and exposed-pad implementation. Follow the manufacturer's recommended land pattern and connect the pad to the ground plane with minimal thermal resistance. Check the dissipation of the level-shifter output stages and VCOM amplifier at maximum channel activity, panel load, and the highest specified ambient temperature.
Thông tin tuân thủ
The supplied verified excerpts do not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification status. AEC-Q100 is not_applicable because no AEC-Q100 qualification was identified and the available evidence describes the device as a display-interface IC rather than an automotive-qualified variant.
