Wireless Power Transmitter for 3W P9235A-R Applications Datasheet Description Features V range: 4.5 - 5.5 V IN The P9235A-R is a 3W, magnetic induction, wireless power transmitter for low power applications. The system-on-chip Supports receiver for up to 3W of power transfer operates with an input voltage range of 4.5 5.5V while 80% peak efficiency (when coupled with P9027LP receiver) integrating micro-controller, voltage regulation, over-current Integrated power stage drivers protection, full bridge power stage drivers and on-chip Low standby power simultaneous voltage and current demodulation. Simultaneous voltage and current demodulation The transmitter includes industry-leading 32bit ARM Cortex- Integrated 32 bit ARM Cortex-M0 Processor M0 processor offering a high level of programmability, while 2 Supports I C interface for field programmability consuming extremely low standby power. The device features two LED outputs with pre-defined user programmable blinking Programmable current limit patterns, buzzer and programmable over-current protection Over-Current and Over-Temperature protection 2 supporting wide range of applications. The I C serial Active low enable pin for electrical on/off communication allows the user to read back information such as Pre-defined programmable LED patterns voltage, current, frequency and fault conditions. Together with the P9027LP-R receiver, the P9235A-R is a complete wireless power Dedicated remote temperature sensing system solution. -40C to +85C ambient operating temperature range VFQFN 5mm X 5mm, 40 pin package The P9235A-R is available in a Pb-free, space-saving VFQFN 5 mm X 5 mm, 40 pin package. The product is rated over an operating temperature range of -40C to +85C. Typical Applications Smart Watches Headsets Health and Fitness monitors Portable Medical applications Figure 1. Application Diagram V IN R SENSE V BRIDGE 4.5V -5.5V LDO33 Discrete R,C Filter 1 Off On GH BRG1 EN LED RED GL BRG1 LED GRN VO 5 GH BRG2 SW B VIN LDO P9235A-R GL BRG2 LDO33 LDO18 Discrete VSNS LDO18 R,C Filter 2 SDA LDO18 SCL ILIM Resistor LED PAT dividers RSVD1 TS RSVD2 2016 Integrated Device Technology, Inc 1 May 17, 2016 VIN ISNS H ISNS L ISNS OUT ISNS INP9235A-R Datasheet Absolute Maximum Ratings These absolute maximum ratings are stress ratings only. Stresses greater than those listed in Table 3, 4 and 5 may cause permanent damage to the device. Functional operation of the P9235A-R at absolute maximum ratings is not implied. Exposure to absolute maximum rating conditions for extended periods may affect long-term reliability. Table 1. Absolute Maximum Ratings Summary (All voltages are referred to ground.) Pins Rating Units EN , VIN, SW B, VBRG IN, SW BRG1, SW BRG2, ISNS H, ISNS L, BST BRG1, BST BRG2, GH BRG1, -0.3 to 28 V GH BRG2 VO 5, VO 33, VIN LDO, LED GRN, LED RED, VDDIO, GPIO A4, GPIO B2, GPIO B3, RSVD1, RSVD2, -0.3 to 6 V SCL, SDA, ILIM, LED PAT, TS, BUZ, GL BRG1, GL BRG2, VSNS IN, ISNS IN, ISNS OUT, VDRV IN GND S, GND BRG, VSNS GND, GND B, EPGND +0.3 V LDO18 -0.3 to 2 V Thermal Characteristics 1,2,3 Table 2 . Package Thermal Characteristics Symbol Description QFN Rating Units Thermal Resistance Junction to Ambient 28.5 JA C/W Thermal Resistance Junction to Case 21.87 C/W JC Thermal Resistance Junction to Board JB 1.27 C/W Operating Junction Temperature TJ -40 to +125 C Ambient Operating Temperature T -40 to +85 A C Storage Temperature T -55 to +150 STG C Lead Temperature (soldering, 10s) T +300 C LEAD Notes: 1. The maximum power dissipation is P = (T - T ) / where T is 85C. Exceeding the maximum allowable power D(MAX) J(MAX) A JA J(MAX) dissipation will result in excessive die temperature, and the device will enter thermal shutdown. 2. This thermal rating was calculated on JEDEC 51 standard 4-layer board with dimensions 3 x 4.5 in still air conditions. 3. Actual thermal resistance is affected by PCB size, solder joint quality, layer count, copper thickness, air flow, altitude, and other unlisted variables. Table 3. ESD Information Test Model Pins Ratings Units HBM All pins +/- 2000 V +/- 500 CDM All pins. V 2016 Integrated Device Technology, Inc 2 May 17, 2016