TPS65191RHBR - 7-Channel TFT-LCD Scan Driver | Texas Instruments
MPN： TPS65191RHBR ✓ 啟用中TPS65191RHBR 概覽
A high-voltage LCD scan driver is a specialized interface and display-driver IC that generates the gate and source drive signals required by TFT-LCD panels. It belongs to the video-processing and display-interface hierarchy: TFT-LCD scan driver, level shifter, video processing IC, display driver, and interface semiconductor. By combining high-level scan outputs with low-level output capability, the TPS65191RHBR supports TFT-LCD panels that require multiple high-voltage signal channels driven from logic-level control circuitry.
The primary verified features are the seven-channel architecture, 35 V high output level, -28 V low output level, logic-level inputs, and output charge sharing. Charge sharing can reduce the switching burden associated with panel drive signals by transferring charge between outputs, although exact timing, output-impedance, channel-mapping, and timing-window limits must be confirmed in the manufacturer datasheet before layout and firmware are finalized.
Technically, this device sits between an LCD controller and the TFT-LCD gate or scan lines. Its logic-level inputs allow a digital display controller or FPGA to command the required output states, while the internal high-voltage output stage provides the voltage swing needed by the panel. The 32-VQFN package also has an exposed thermal pad, giving the PCB designer a direct heat-spreading path; exact pad dimensions, pin functions, thermal resistance, and recommended land pattern remain to be verified from the official documentation.
Typical uses include TFT-LCD monitor and panel electronics, small-format display systems, industrial HMI panels, automotive display modules, portable instruments, and embedded control systems with dedicated LCD scan electronics. The TPS65191RHBR is particularly relevant where a board requires a dedicated seven-channel high-voltage scan driver rather than relying on a controller with integrated high-voltage panel outputs.
The main design consideration is that panel timing and voltage compatibility are not determined by the driver description alone. Designers must match the panel's required channel count, gate voltage range, logic thresholds, timing sequence, and charge-sharing behavior. Input and output routing should be kept short, the exposed pad must be connected to the recommended ground and thermal area, and datasheet limits must be checked against worst-case supply and temperature conditions.
This page combines verified distributor specifications, family-level comparison information, pinout availability constraints, and practical TFT-LCD design guidance. It distinguishes confirmed parameters from information that must still be obtained from the manufacturer datasheet, helping engineers evaluate this scan driver without treating unspecified electrical details as guaranteed.
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TPS65190RHDR
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查看資料表 →TPS65191RHBR 規格
| Device Type | 7-channel high-voltage TFT-LCD scan driver |
| High Output-Voltage Level | 35 V |
| Low Output-Voltage Level | Down to -28 V |
| Number of Channels | 7 channels |
| Input Logic Level | Logic-level inputs |
| Output Charge Sharing | Supported |
| 封裝 | 32-VQFN exposed-pad package, 5 mm x 5 mm |
| 安裝類型 | Surface mount |
| Packaging | Cut tape |
| Lead-Free Status | Lead free |
| Application | TFT-LCD panel scan driving |
TPS65191RHBR 32-vqfn exposed-pad package, 5 mm x 5 mm 腳位配置指南
TPS65191RHBR（32-vqfn exposed-pad package, 5 mm x 5 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TPS65191RHBR.
請參閱 資料表 以查看完整腳位配置。
典型應用
TPS65191RHBR 適用於 6 應用s: TFT-LCD Monitor Panel Scan Driver, Industrial Human-Machine Interface, Automotive Display Electronics, Small-Format Portable Display, Test and Measurement Instrument Display, Embedded Control Panel with Dedicated LCD Output.
TFT-LCD Monitor Panel Scan Driver
The TPS65191RHBR fits TFT-LCD monitor panel electronics because it provides seven high-voltage scan-driver channels with a verified 35 V high output level and low output capability down to -28 V. It can sit between the timing controller and the panel's gate-drive lines, translating logic-level commands into the required panel voltage transitions. The seven-channel count makes it relevant for panel architectures requiring seven dedicated scan outputs. The primary qualification condition is that every channel's timing and voltage waveform must match the display vendor's specification. Because output charge sharing is supported, timing margins and the manufacturer's recommended charge-sharing sequence should be evaluated carefully.
推薦
Industrial Human-Machine Interface
Industrial human-machine interfaces often use TFT-LCD panels that require dedicated high-voltage scan outputs even when the main controller operates from low-voltage logic. The TPS65191RHBR's seven channels, 35 V high output level, and logic-level inputs suit that separation between the control system and the LCD gate-drive stage. Its exposed-pad package also allows heat to spread into the PCB when the display electronics operate continuously. Before selection, verify the HMI panel's required number of gate lines, voltage limits, timing sequence, and operating-temperature range, since those additional figures are not confirmed in the supplied source extracts.
推薦
Automotive Display Electronics
The TPS65191RHBR can be evaluated for automotive TFT-LCD display modules that use a separate high-voltage scan-driver stage. Its seven high-voltage outputs, 35 V high level, and -28 V low level align with the role of generating LCD scan signals, while logic-level inputs simplify connection to the display controller. The exposed thermal pad is useful in compact display electronics where sustained operating duty can create localized heat. However, automotive deployment requires confirmed AEC-Q100 qualification, temperature limits, electromagnetic compatibility, and lifecycle information; none of those qualifications are established by the supplied verified snippets.
推薦
Small-Format Portable Display
For a small-format portable TFT-LCD module, the TPS65191RHBR can provide a dedicated seven-channel scan-drive function while the host processor handles graphics and timing commands through logic-level inputs. The 35 V high output level and -28 V low output level address panels requiring a wider gate-drive swing than ordinary low-voltage I/O. Its compact 5 mm by 5 mm VQFN form helps conserve board area, although the exposed-pad layout must follow the exact manufacturer land pattern. Battery-powered designs should also verify sleep current, inactive-state behavior, and quiescent current from the datasheet because those values are not supplied here.
推薦
Test and Measurement Instrument Display
Laboratory and industrial test instruments often use TFT-LCD panels for waveform, status, and measurement-result presentation. The TPS65191RHBR is applicable when the instrument's display controller requires a separate seven-channel high-voltage scan stage. Logic-level command inputs allow direct digital control, while the verified 35 V and -28 V output capability supports LCD gate signaling. The design must preserve clean analog and digital performance by following the manufacturer's grounding, exposed-pad, and output-routing guidance. Exact output impedance, leakage, propagation delay, and timing limits remain to be taken directly from the manufacturer datasheet before signal-integrity signoff.
推薦
Embedded Control Panel with Dedicated LCD Output
Embedded controllers, industrial HMIs, and specialty terminal equipment can use the TPS65191RHBR when an external display controller lacks integrated high-voltage gate-drive capability. The device accepts logic-level inputs and provides seven scan outputs with a verified 35 V high level and down to -28 V low level, creating a defined interface between digital control and TFT-LCD panel scanning. Charge sharing may reduce switching demand, but the exact implementation and timing window must follow TI's application guidance. Board designers should reserve the exposed-pad thermal area and validate panel startup, blanking, and fault behavior under worst-case conditions.
推薦
推薦產品摘要
工程參考資料，適用於 TPS65191RHBR — 比較、設計指引及合規資訊。
選型指南
TPS65190RHDR and TPS65192RHDR are related family candidates, but the supplied evidence does not prove that either has matching channel count, voltage limits, timing, pin functions, or pad geometry. Consider them only after comparing the complete manufacturer datasheets. No cross-manufacturer drop-in equivalent was verified. If the panel requires a different number of channels, higher voltage swing, narrower timing limits, or a different package, select the device specified by the panel vendor rather than substituting on package size alone.
與替代品比較
| 參數 | 本產品 | TPS65190RHDR | TPS65192RHDR |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 32-VQFN (RHB) exposed-pad package, 5 mm x 5 mm | 32-VQFN (RHD) exposed-pad package | 32-VQFN (RHD) exposed-pad package |
| Device Function | TFT-LCD high-voltage scan driver | TFT-LCD scan-driver family candidate | TFT-LCD scan-driver family candidate |
| Mounting Type | Surface mount | Surface mount | Surface mount |
主要差異化特點
- Verified seven-channel TFT-LCD scan-driver configuration (對比TPS65190RHDR)
- Explicit 35 V high and -28 V low output capability (對比TPS65192RHDR)
- Logic-level control with output charge sharing (對比TPS65190RHDR)
設計說明
Reserve the exposed-pad land, mask opening, and thermal-via pattern specified by the manufacturer drawing rather than constructing a generic 32-VQFN footprint from the 5 mm by 5 mm body size alone. Confirm whether the RHB and RHD package codes have identical pad geometry before treating a family member as a layout-compatible replacement. Route the panel-facing outputs directly toward their connectors or display interface while keeping the logic inputs away from high-switching nodes.
Validate the panel high-voltage supply and each output against the 35 V high-level and -28 V low-level limits before enabling continuous scan operation. The supplied evidence does not specify operating voltage, quiescent current, output leakage, or output impedance, so those values must be obtained from the datasheet. Check the source current delivered during every gate-line transition and add local decoupling only according to TI's recommended application circuit and stability requirements.
Use the manufacturer's timing diagrams to determine when charge sharing may be enabled and how many outputs may share charge simultaneously. Although output charge sharing is a verified feature, no timing-window or propagation-delay values are available in the supplied extracts. Incorrect sequencing can cause ghosting, uneven gate voltage, or panel stress, so compare controller timing with the TPS65191's minimum setup, hold, and output-transition requirements.
Connect the exposed pad to the recommended PCB ground and thermal structure and account for its heat-spreading contribution in the enclosure design. The verified package is a 32-VQFN exposed-pad device, but the exact thermal resistance and maximum junction temperature are unavailable. Use the manufacturer thermal model for the actual PCB area, copper layers, airflow, and ambient temperature rather than treating the small package outline as an adequate heat budget.
合規資訊
The verified digchips.com listing identifies the TPS65191RHBR as lead free. RoHS, REACH, halogen-free, and conflict-minerals declarations were not explicitly confirmed by the supplied data. AEC-Q100 is not_applicable because this record does not establish automotive qualification.
