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Aaustriamicrosystems AS3606(07)高档电源管理解决方案

文章出处:8gled.com作者:格烁光电发表时间:2018-07-23
代孕费用-喂养频道Bw2Q【专业实力保证】Aaustriamicrosystems公司的 AS3606/07是高档电源管理解决方案,包括了电池供电的移动设备所需要的IC和外设,集成了3个DC/DC转换器和5个低噪音LDO,单电源电压2.7V-5.5V工作,升压转换器高达30V,可用于OLED电源和白光LED背景光电源. AS3606/07还包括了锂离子电池充电器,最大充电电流1A.主要用于PMP,手提导航设备(PND),电子图书,平板PC等.本文介绍了AS3606/07主要特性, 方框图, LDO 方框图, DC/DC转换器方框图, 充电器方框图以及AS3606和AS3607的应用电路.

The device offers advanced power management functions. All necessary ICs and peripherals in a battery powered mobile device are supplied by the AS3606/07. It features 3 DCDC converters as wELl as 5 low noise LDOs. The different regulated supply voltages
are programmable via the serial control interface.

The step-up converter for the backlight can operate up to 30V. Both constant voltage (OLED supply) as well as constant current (white led backlight) operations with 2 current sin福建代孕-【首选女娲助孕tQTs】护理频道ks are possible. An internal voltage protection is limiting the output voltage in the case of external component failures.

AS3606/07 also contains a Li-Ion battery charger with constant current and constant voltage. The maximum charging current is 1A. An integrated battery switch and an optional external switch are separating the battery during charging or whenever an external power supply is present. With this switch it is also possible to operate with no or deeply discharged batteries. A programmable current limit can be used to control the maximum current used from a USB supply.

The single supply voltage may vary from 2.7V to 5.5V.

AS3606/07主要特性:

Power Management

Voltage Generation

3 DCDC step down regulators

- DVM (0.61V-3.3V, 700mA)

- 50μA quiescent current

- Selectable switching frequency (2 or 1MHz)

- 1.4A with combined DCDC 2 & 3

1 LDO low noise 2.7V (2.3-3.5V), 100mA

3 or 4 LDOs low noise

- 1.2-3.5V; 150/250mA

- 30μA quiescent current (low power mode)

Power supply supervision (LDO5)

4sec and 8sec emergency shut-down

Hibernation function

HV Backlight Driver

Step up for 30V backlight with internal transistor

Voltage control mode and over-voltage protection

2 programmable current sink (max. 38mA)

Max. 20mA@50V (with ext. transistor) or 500mA@5V

Possible external PWM dimming input

Battery Charger

Prog. trickle charging (25-265mA)

Prog. constant current charging (94-1060mA)

Prog. constant voltage charging (3.9V-4.25V)

Charger time-out and temperature supervision

Selectable current limitation for USB mode

Integrated battery switch & ideal diode

External battery switch control output

General

Battery and Temperature Supervisor

2 or 4 General Purpose IOs

10bit general purpose ADC input

PWM dimming input or wake-up input

Status output for: charger, low battery, power good and powerup key

OTP Programmable BOOT Sequence

Programmable regulator default voltages

Programmable start-up sequence

Applicable for LDO 1-4 and DCDC 1-3

Control Interface

I2C control lines, including watchdog

Power-Up input

Interrupt output

Bidirectional reset, with selectable delay

Ultra low power standby mode, 110μA with LDO5 on

Power-On Reset Circuit

Packaging

QFN32 5x5mm or QFN36 6x6mm, 0.5mm pitch

AS3606/07应用:

The devices are ideal for Portable Media Players and Portable Navigation Devices, e-Books, Tablet PCs, etc

图1.AS3606方框图

图2.AS3607方框图

图3.LDO 方框图

图4.DC/DC降压转换器方框图

图5.DC/DC 15方框图

图6.充电器方框图

图7.典型的AS3606应用电路

图8.典型的AS3607应用电路

代孕费用-喂养频道Bw2Q【专业实力保证】 Aaustriamicrosystems AS3606(07)高档电源管理解决方案原创编辑请注明出来http://www.0769yg.com

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