Wireless battery pack chargers
Lansheng Technology Limited
Integrated Circuits distributor for over 10 years
Isolated AC/DC power supply
An isolated AC/DC power stage converts AC voltage into isolated regulated DC voltage. Efficiency is a key parameter for this stage as it contains protection mechanisms for over current and over temperature.
Products
Shunt voltage references
TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator
TL431—Adjustable precision shunt regulator
LMV431—1.5%, low-voltage (1.24-V) adjustable precision shunt regulator
LMV431B—0.5%, low-voltage (1.24-V) adjustable precision shunt regulator
Low-side drivers
UCC27525—5-A/5-A dual-channel gate driver with 5-V UVLO, enable, and inverting/non-inverting inputs
UCC27531—2.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and split outputs
UCC27324—Non-inverting 4-A/4-A dual-channel low side gate driver
Half-bridge drivers
LM5101B—2-A, 100-V half bridge gate driver with 8-V UVLO and TTL inputs
UCC27714—4-A, 600-V half bridge gate driver
SR & load share controllers
UCC24612—High-frequency multi-mode synchronous rectifier controller
UCC24610—Secondary side synchronous rectifier controller
UCC24630—Synchronous rectifier controller With Ultra Low Standby current
UCC24636—Synchronous rectifier controller With Ultra-Low Standby current
LLC controllers
UCC25600—8-pin high-performance resonant mode LLC controller
PWM controllers
UCC28950—Green phase-shifted full-bridge controller with Synchronous Rectification control
N-channel MOSFETs
CSD18514Q5A—40-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 4.9 mOhm
CSD19531Q5A—100-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 6.4 mOhm
CSD19501KCS—80-V, N channel NexFET? power MOSFET, single TO-220, 6.6 mOhm
CSD19534Q5A—100-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 15.1 mOhm
CSD17573Q5B—30-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 1.45 mOhm
Flyback controllers
UCC28740—Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side
Power stage
The power stage consists of half bridge or full bridge inverter driving the primary tank (LC) circuit of a wireless power transmitter. This stage operates to generate trapezoidal waveform at 50% duty cycle. This stage usually operates at a constant frequency, which is determined by the resonant frequency of the LC parallel resonant circuit.
Products
Low-side drivers
UCC27525—5-A/5-A dual-channel gate driver with 5-V UVLO, enable, and inverting/non-inverting inputs
UCC27531—2.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and split outputs
UCC27324—Non-inverting 4-A/4-A dual-channel low side gate driver
Half-bridge drivers
LM5101B—2-A, 100-V half bridge gate driver with 8-V UVLO and TTL inputs
UCC27714—4-A, 600-V half bridge gate driver
Battery charger ICs
BQ21061—500-mA 1-cell linear charger with 10-nA ship mode, power-path, regulated system voltage and LDO
N-channel MOSFETs
CSD18514Q5A—40-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 4.9 mOhm
CSD19531Q5A—100-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 6.4 mOhm
CSD19501KCS—80-V, N channel NexFET? power MOSFET, single TO-220, 6.6 mOhm
CSD19534Q5A—100-V, N channel NexFET? power MOSFET, single SON 5 mm x 6 mm, 15.1 mOhm
Signal conditioning
This stage consists of opamps, comparators and references for amplification, comparison and fault detection of sensed voltage, current and temperature signals in the system. This stage can contain ADCs when a low end micro-controller is used in the system.
Products
Precision op amps (Vos<1mV)
OPA2320—Dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier
OPA180—0.1-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier
OPA2188—0.03μV/°C, 6μV Vos, Low Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier
LMP2011—Single, High Precision, Rail-to-Rail Output Operational Amplifier
Analog current-sense amplifiers
INA199—26V, bi-directional current sense amplifier
INA240—-4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection
INA181—26-V bi-directional 350-kHz current-sense amplifier
General-purpose op amps
LMV358A—Dual, 5.5-V, 1-MHz, 4-mV offset voltage, RRO operational amplifier
OPA991—Single, 40-V 4.5-MHz low-power operational amplifier
LMV324A—Quad, 5.5-V, 1-MHz, 4-mV offset voltage, RRO operational amplifier
LM358B—Dual, 36-V, 1.2-MHz, 3-mV offset voltage operational amplifier with -40°C to 85°C operation
Comparators
LM393B—Dual commercial grade standard comparator
LM393A—Precision dual differential comparator, industrial grade
Shunt voltage references
TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator
TL431—Adjustable precision shunt regulator
LMV431—1.5%, low-voltage (1.24-V) adjustable precision shunt regulator
Precision ADCs
ADS1220—24-bit, 2-kSPS, four-channel, low-power, delta-sigma ADC with PGA, VREF, SPI and two IDACs
ADS1278—24-Bit, 144kSPS, 8-Ch Simultaneous-Sampling Delta-Sigma ADC for Wide Bandwidth Applications
ADS8885—18-Bit, 400-kSPS, 1-Ch SAR ADC with True-Differential Input, SPI Interface and Daisy-Chain
Temperature switches
TMP302—Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches
Analog temperature sensors
LMT88—±4°C analog output temperature sensor with -11.77-mV/°C gain
Demodulator
This is a communication demodulation circuit. The input of the circuit is coil voltage with communication signals, and the output is communication data following a bit encoding scheme. Qi-compliant wireless devices use amplitude-shift keying (ASK) modulation to communicate.
Products
General-purpose op amps
LMV358A—Dual, 5.5-V, 1-MHz, 4-mV offset voltage, RRO operational amplifier
OPA991—Single, 40-V 4.5-MHz low-power operational amplifier
LMV324A—Quad, 5.5-V, 1-MHz, 4-mV offset voltage, RRO operational amplifier
LM358B—Dual, 36-V, 1.2-MHz, 3-mV offset voltage operational amplifier with -40°C to 85°C operation
TLV9001—One-channel, 1-MHz rail-to-rail input and output 1.8-V to 5.5-V operational amplifier
Comparators
LM393B—Dual commercial grade standard comparator
LM393A—Precision dual differential comparator, industrial grade
Precision op amps (Vos<1mV)
OPA2320—Dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier
OPA180—0.1-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier
OPA2188—0.03μV/°C, 6μV Vos, Low Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier
LMP2011—Single, High Precision, Rail-to-Rail Output Operational Amplifier
Auxiliary power supply
Auxiliary power supply generally consists of a low voltage DC/DC converter for developing multiple non-isolated rails used to power various subsystems in the end equipment such as digital processor, gate drivers, and sensing circuits. There are multiple optional stages where the output from the main DC/DC converter can be fed to further low voltage DC/DC converters or LDOs. A typical aspect of the auxiliary power supply is its low standby power which is important in improving overall system efficiency.
Products
Buck converters (integrated switch)
TPS560430—SIMPLE SWITCHER? 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode
LMR36502—3-V to 65-V, 150-mA ultra-small synchronous buck converter with 6 μA IQ
TPS62A02—2.5-V to 5.5-V input, 2-A high-efficiency step-down converter in SOT563 and SOT23 package
Buck modules (integrated inductor)
TPSM82810—2.75-V to 6-V, 4-A step-down module with adjustable-frequency & tracking in 3 x 4-mm μSIP package
Linear & low-dropout (LDO) regulators
TPS7A83A—2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good
TLV709—150-mA 30-V low-dropout (LDO) linear regulator with 3.2-μA supply current
TPS782—150-mA, nano-IQ, low-dropout voltage regulator with enable from -40°C to +125°C
Shunt voltage references
TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator
TL431—Adjustable precision shunt regulator
LMV431—1.5%, low-voltage (1.24-V) adjustable precision shunt regulator
LMV431B—0.5%, low-voltage (1.24-V) adjustable precision shunt regulator
Boost converters (integrated switch)
TPS61087—18.5-V, 3.2-A, 650-kHz / 1.2-MHz step-up DC/DC converter
TPS61222—0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current
SR & load share controllers
UCC24612—High-frequency multi-mode synchronous rectifier controller
UCC24610—Secondary side synchronous rectifier controller
UCC24630—Synchronous rectifier controller With Ultra Low Standby current
UCC24636—Synchronous rectifier controller With Ultra-Low Standby current
Boost controllers (external switch)
LM5020—13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller
Digital processing
The digital processing unit mainly consists of microcontrollers and DSPs as central control unit(s), used for different power stage controls, communication interfaces, and displays. These take current and voltage feedback from various units to ensure that the overall systems functions correctly.
Products
Arm Cortex-M0+ MCUs
MSPM0L1105—32-MHz Arm? Cortex?-M0+ MCU with 32-KB flash, 4-KB SRAM, 12-bit ADC
MSPM0G1105—80MHz Arm M0+ MCU, 32KB Flash, 16KB SRAM, 2×12bit 4Msps ADC, op-amp
C2000 real-time microcontrollers
TMS320F2800137—C2000? 32-bit MCU with 120 MHz, 256-KB flash, FPU and TMU
TMS320F28031-Q1—Automotive C2000? 32-bit MCU with 60 MHz, 64 KB flash, 2 MSPS ADC
TMS320F28035-Q1—Automotive C2000? 32-bit MCU with 60 MHz, 128 KB flash, CLA
TMS320F28031—C2000? 32-bit MCU with 60 MHz, 64 KB flash, 2 MSPS ADC
MSP430 microcontrollers
MSP430F5529—25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier
MSP430FR2633—Capacitive Touch MCU with 16 touch IO (64 sensors), 16KB FRAM, 4KB SRAM, 19 IO, 10-bit ADC
MSP430FR2532—Capacitive Touch MCU with 8 touch IO (8 sensors), 8KB FRAM, 1KB SRAM, 15 IO, 10-bit ADC
MSP430FR2533—Capacitive Touch MCU with 16 touch IO (24 sensors), 16KB FRAM, 2KB SRAM, 19 IO, 10-bit ADC
Direction-controlled voltage translators
SN74LVC1T45-Q1—Automotive Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
Inverting buffers & drivers
SN74LVC2G14—2-ch, 1.65-V to 5.5-V inverters with Schmitt-Trigger inputs
Noninverting buffers & drivers
SN74LVC2G17—2-ch, 1.65-V to 5.5-V buffers with Schmitt-Trigger inputs
SN74LVC827A—10-ch, 1.65-V to 3.6-V buffers with 3-state outputs
D-type latches
SN74ACT573—Octal D-type transparent latches with three-state outputs
AND gates
SN74LV08A—4-ch, 2-input 2-V to 5.5-V high-speed (7 ns) AND gate
Shift registers
SN74LV595A—Eight-bit shift registers with 3-state output registers
SN74LV165A—Parallel-load eight-bit shift registers
Power factor correction (PFC) controllers
UCC28051—Transition mode PFC controller with 12.5V/9.7V UVLO and IEC61000-3-2 compliance, -40°C to 105
Supervisor & reset ICs
TPS3422—Single-channel push-button controller with configurable delay & reset pulse
Wireless interface
This stage communicates wirelessly to and from the charging IC to transfer charging information such as operating modes that implement charging power transmission and charging power reception along with associated control functionality. This is commonly implemented using BLE and NFC.
Products
Other wireless products
TRF7970A—Multi-Protocol Fully Integrated 13.56-MHz NFC / RFID Transceiver IC
TRF7964A—TRF7964A Multi Protocol Fully Integrated 13.56-MHz NFC / RFID Reader/Writer IC
RF430CL330H—Dynamic Dual Interface NFC Transponder
Low-power 2.4-GHz products
CC2640—SimpleLink? 32-bit Arm Cortex-M3 Bluetooth? Low Energy wireless MCU with 128kB Flash
Lansheng Technology Limited, which is a spot stock distributor of many well-known brands, we have price advantage of the first-hand spot channel, and have technical supports.
Our main brands: STMicroelectronics, Toshiba, Microchip, Vishay, Marvell, ON Semiconductor, AOS, DIODES, Murata, Samsung, Hyundai/Hynix, Xilinx, Micron, Infinone, Texas Instruments, ADI, Maxim Integrated, NXP, etc
To learn more about our products, services, and capabilities, please visit our website at https://www.lanshengic.com