TPS65181B
- Single-Chip Power Management Solution for
E Ink® Vizplex™ Electronic Paper Displays - Generates Positive and Negative Gate and
Source Driver Voltages and Back-Plane Bias from
a Single, Low-Voltage Input Supply - 3-V to 6-V Input Voltage Range
- Boost Converter for Positive Rail Base
- Inverting Buck-Boost Converter for Negative Rail
Base - Two Adjustable LDOs for Source Driver Supply
- LDO1: 15 V, 120 mA (VPOS)
- LDO2: –15 V, 120 mA (VNEG)
- Accurate Output Voltage Tracking
- VPOS – VNEG = ±50 mV
- Two Charge Pumps for Gate Driver Supply
- CP1: 22 V, 10 mA (VDDH)
- CP2: –20 V, 12 mA, (VEE)
- Adjustable VCOM Driver for Accurate Panel-
Backplane Biasing- –0.3 V to –2.5 V
- ±1.5% Accuracy (±18 mV)
- 8-Bit Control (11-mV Nominal Step Size)
- 15-mA Maximum Integrated Switch
- Integrated 3.3-V Power Switch for Disabling
System Power Rail - Thermistor Monitoring
- –10°C to +85°C Temperature Range
- ±1°C Accuracy from 0°C to 50°C
- I2C Serial Interface
- Slave Address 0x48h (1001000)
- Flexible Power-Up Sequencing
- Interrupt and Sleep Mode Support
- Thermally-Enhanced Package for Efficient Heat
Management (48-Pin 7 mm × 7 mm × 0.9 mm VQFN) - APPLICATIONS
- Power Supply for Active Matrix E Ink Vizplex
Panels - EPD Power Supply
- E-Book Readers
- EPSON® S1D13522 (ISIS) Timing
Controller - EPSON S1D13521 (Broadsheet) Timing Controller
- Application Processors With Integrated
or Software Timing Controller (OMAP)
- Power Supply for Active Matrix E Ink Vizplex
All other trademarks are the property of their respective owners
The TPS6518x and TPS65181xB family of devices are single-chip power supplies designed to for E Ink Vizplex displays used in portable e-reader applications and support panel sizes up to 9.7 inches. Two high-efficiency DC–DC boost converters generate ±17-V rails which are boosted to 22 V and –20 V by two change pumps to provide the gate driver supply for the Vizplex panel. Two tracking LDOs create the ±15-V source driver supplies which support up to 120-mA of output current. All rails are adjustable through the I2C interface to accommodate specific panel requirements.
Accurate back-plane biasing is provided by a linear amplifier and can be adjusted either by an external resistor or the I2C interface. The VCOM driver can source or sink current depending on panel condition. For automatic VCOM adjustment in production line, VCOM can be set from –0.3 V to –2.5 V with 8-bit control through the serial interface. The power switch is integrated to isolate VCOM driver from E Ink® panel.
The TPS6518x and TPS65181xB devices provide precise temperature measurement function to monitor the panel temperature during operation. The TPS65180 and TPS65180B requires the host processor to trigger the temperature acquisition through an I2C write whereas the TPS65181 and TPS65181B automatically updates the temperature every 60 s.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS6518xx PMIC for E Ink® Vizplex™-Enabled Electronic Paper Display datasheet (Rev. G) | PDF | HTML | 2016年 1月 15日 |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018年 9月 19日 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015年 8月 17日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點