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Номер в каталоге(s) : XKT-408A
Unspecified
Unspecified
Компоненты Описание : XKT-408A Wireless charging transmitter IC

Wireless charging power intelligent control chip.






Номер в каталоге(s) : WT1005690-12K2-A6-G
TDK Corporation
TDK Corporation
Компоненты Описание : Tx Coil Units

Wireless charging

Tx Coil Units

Номер в каталоге(s) : WCN3620
QUALCOMM Incorporated
QUALCOMM Incorporated
Компоненты Описание : Wireless Connectivity IC

WCN3620 device introduction
The WCN3620 IC integrates three different Wireless connectivity technologies into a single device suitable for handsets and other mobile devices:
Wireless local area network (WLAN) compliant with the IEEE 802.11 b/g/n specification
◾ Bluetooth (BT) compliant with the BT specification version 4.0 (BR/EDR+BLE)
◾ Worldwide FM radio, with Rx modes supporting the Radio Data System (RDS) for Europe and the Radio Broadcast Data System (RBDS) for the USA

New features introduced into the WCN3620 IC
◾ 65 nm RF CMOS technology in the small 61 WLNSP
◾ Highly integrated front-end eliminates external PA and LNA matching, and antenna Tx/Rx switching.
◾ Support for ANT
◾ Support for the IEEE802.11b/g/n standard
◾ Single-band WLAN: 2.4 GHz RF transceivers
◾ Compliant with BT specification version 4.0
◾ Concurrent WLAN + BT reception in the 2.4 GHz band
◾ Lower power consumption
◾ Smaller IC footprint, lower parts count, and less PCB area overall

Номер в каталоге(s) : MM1438
Mitsumi
Mitsumi
Компоненты Описание : IC for Control of Lithium-ion Betteries charging (Rev - V2)

Outline
This IC is used to control charging of lithium-ion batteries consisting of a single cell. It is a modification of the previous MM1332 charging-control IC, with improved charging voltage accuracy and a smaller package.

Features
1. charging voltage accuracy (Ta=25°C) ±25mV/cell
2. charging voltage accuracy (Ta=0 to 50°C) ±30mV/cell
3. Consumption current (charging on) 250µA typ.
4. Consumption current (charging off) 2µA typ.
5. Low-voltage detection 2.15V typ.
6. Leakage current between CEL and CS 1µA max.

Applications
    IC for control of lithium-ion batteries charging.

Номер в каталоге(s) : MM1438
Mitsumi
Mitsumi
Компоненты Описание : IC for Control of Lithium-ion Betteries charging (one cell)

Outline
This IC is used to control charging of lithium-ion batteries consisting of a single cell. It is a modification of the previous MM1332 charging-control IC, with improved charging voltage accuracy and a smaller package. A low voltage circuit is built in (operates at SW2 = “L” ) that can prohibit low voltage battery (2.15V typ.) charging. When SW2 = “H”, the low voltage circuit is turned off and even a low voltage battery can be charged.

Features
1. charging voltage accuracy (Ta=25°C) ±25mV/cell
2. charging voltage accuracy (Ta=0 to 50°C) ±30mV/cell
3. Consumption current (charging on) 250µA typ.
4. Consumption current (charging off) 2µA typ.
5. Low-voltage detection 2.15V typ.
6. Leakage current between CEL and CS 1µA max.

Applications
    IC for control of lithium-ion batteries charging.

Номер в каталоге(s) : MB3875
Fujitsu
Fujitsu
Компоненты Описание : DC/DC Converter IC for charging

■ DESCRIPTION
The MB3875 and MB3877 are charging DC/DC converter ICs suitable for down-conversion, which uses pulse width modulation (PWM) for controlling the output voltage and current independently. These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC adapter in order to keep its power constant (dynamically-controlled charging). The charging method enables quick charging, for example, with the AC adapter during operation of a notebook PC.

■ FEATURES
• Detecting a voltage drop in the AC adapter and dynamically controlling the charge current (Dynamically-controlled charging)
• High efficiency : 95 %
• Wide range of operating supply voltages: 7 V to 25 V
• Output voltage precision (Output voltage setting resistor integrated): 0 ± 0.8 % (Ta = + 25 °C)
• High precision reference voltage source: 4.2 V ± 0.8 %
• Support for frequency setting using an external resistor (Frequency setting capacitor integrated) :100 kHz to 500 kHz
• On-chip current detector amplifier with wide in-phase input voltage range : 0 V to VCC
• On-chip standby current function: 0 µA (Typ)
• On-chip soft-start function
• Internal totem-pole output stage supporting P-channel MOS FETs devices

Номер в каталоге(s) : BH1415F-E2
ROHM Semiconductor
ROHM Semiconductor
Компоненты Описание : Wireless Audio Link IC

The BH1415F is a FM stereo transmitter IC that transmits simple configuration. The IC consists of a stereo modulator for generating stereo composite signals and a FM transmitter for broadcasting a FM signal on the air. The stereo modulator generates a composite signal which consists of the MAIN, SUB, and pilot signal from a 38kHz oscillator. The FM transmitter radiates FM wave on the air by modulating the carrier signal with a composite signal.

Features
1) It is possible to improve the timbre because it has the pre-emphasis circuit, limiter circuit, and the low-pass filter circuit.
2) Built-in pilot-tone system FM stereo modulator circuit.
3) The transmission frequency is stable because it has a PLL system FM transmitter circuit.
4) PLL data input (CE, CK, DA) by serial input.

Applications
    CD changer, Car TV, Car navigation, Wireless speakers, Personal computer (sound board), Game machine

Номер в каталоге(s) : MB3832A
Fujitsu
Fujitsu
Компоненты Описание : DC/DC Converter IC for charging

■ DESCRIPTION
The MB3832A is a pulse width modulation (PWM) DC/DC converter IC, incorporating a current detector amplifier and error amplifiers (2 circuits) to control the output voltage and current independently. It is suitable for downconversion.
With an on-chip reference voltage generator, the MB3832A is best suited for use in applications such as lithiumion battery (1-cell to 3-cell) chargers.

■ FEATURES
• High precision reference voltage source: 2.5 V ± 0.5% (+25°C)
                                                                  : 2.5 V ± 1.0% (–10°C to +85°C)
• High frequency operating capability: 500 kHz Max.
• Wide operating supply voltage range: 3.6 V to 18 V
• On-chip current detector amplifier with wide in-phase input voltage range: 0 V to VCC
• On-chip standby function
• On-chip triangular waveform oscillator capable of operating in external synchronization
• On-chip, timer-latch short-circuit protection circuit
• Internal totem-pole output stage supporting P-channel MOS FETs and PNP transistors

Номер в каталоге(s) : MB3878PFV
Fujitsu
Fujitsu
Компоненты Описание : DC/DC Converter IC for charging

■ DESCRIPTION
The MB3878 is a DC/DC converter IC suitable for down-conversion, using pulse-width (PWM) charging and enabling output voltage to be set to any desired level from one cell to four cells.
These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC adaptor in order to keep its power constant (dynamically-controlled charging).
The charging method enables quick charging, for example, with the AC adaptor during operation of a notebook PC.
The MB3878 provides a broad power supply voltage range and low standby current as well as high efficiency, making it ideal for use as a built-in charging device in products such as notebook PC.

■ FEATURES
• Detecting a voltage drop in the AC adaptor and dynamically controlling the charge current (Dynamically-controlled charging)
• Output voltage setting using external resistor : 1 cell to 4 cells
• High efficiency : 94 %
• Wide range of operating supply voltages : 7 V to 25 V
• Output voltage setting accuracy : 4.2V ± 0.8% (per cell)
• Built-in frequency setting capacitor enables frequency setting using external resistor only
• Oscillator frequency range : 100kHz to 500kHz
• Built-in current detector amplifier with wide in-phase input voltage range : 0 V to Vcc
• In standby mode, leave output voltage setting resistor open to prevent inefficient current loss
• Built-in standby current function : 0 µA (standard)
• Built-in soft start function
• Built-in totem-pole output stage supporting P-channel MOS FETs devices

Номер в каталоге(s) : MB3832APFV
Fujitsu
Fujitsu
Компоненты Описание : DC/DC Converter IC for charging (Rev - 1999)

■ DESCRIPTION
The MB3832A is a pulse width modulation (PWM) DC/DC converter IC, incorporating a current detector amplifier and error amplifiers (2 circuits) to control the output voltage and current independently. It is suitable for downconversion.
With an on-chip reference voltage generator, the MB3832A is best suited for use in applications such as lithiumion battery (1-cell to 3-cell) chargers.

■ FEATURES
• High precision reference voltage source: 2.5 V ± 0.5% (+25°C)
                                                                  : 2.5 V ± 1.0% (–10°C to +85°C)
• High frequency operating capability: 500 kHz max.
• Wide operating supply voltage range: 3.6 V to 18 V
• On-chip current detector amplifier with wide in-phase input voltage range: 0 V to VCC
• On-chip standby function
• On-chip triangular waveform oscillator capable of operating in external synchronization
• On-chip, timer-latch short-circuit protection circuit
• Internal totem-pole output stage supporting P-channel MOS FETs and PNP transistors

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