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AS3608 EVAL BOARD

产品描述BOARD DEMO/USB BOX FOR AS3608
产品类别开发板/开发套件/开发工具   
文件大小2MB,共67页
制造商AMS
官网地址https://ams.com/zh
标准
下载文档 详细参数 选型对比 全文预览

AS3608 EVAL BOARD概述

BOARD DEMO/USB BOX FOR AS3608

AS3608 EVAL BOARD规格参数

参数名称属性值
主要用途DC/DC,LDO 步升或步降
输出和类型10,非隔离
电压 - 输入2.7 V ~ 5.5 V
稳压器拓扑升压,降压
板类型完全填充
所含物品
使用的 IC/零件AS3608

文档预览

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Data Sheet
AS3608
System PMU with HV Back Light Driver
1 General Description
The AS3608 is an ultra compact System PMU with integrated battery
charger and HV back light driver.
The device offers advanced power management functions. All
necessary ICs and peripherals in a battery powered mobile device
are supplied by the AS3608. 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 sinks are possible. An
internal voltage protection is limiting the output voltage in the case of
external component failures.
AS3608 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.
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
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 power-
up key
2 Key Features
Power Management
Voltage Generation
3 DCDC step down regulators
-
-
-
-
DVM (0.61V-3.3V, 1A@1.2V, 900mA@1.8V 800mA@2.5V)
50µA quiescent current
Selectable switching frequency (2 or 1MHz)
2A@1.2V with combined DCDC 2 & 3
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
Low power standby mode, 180µA with LDO5 on
1 LDO low noise 2.7V (2.3-3.5V), 100mA
3 or 4 LDOs low noise
- 1.2-3.5V; 160/270mA
- 30µA quiescent current (low power mode)
Power supply supervision (LDO5)
4sec and 8sec emergency shut-down
Hibernation function
Power-On Reset Circuit
Packaging
QFN36 6x6mm, 0.5mm pitch
3 Application
The devices are ideal for Portable Media Players and Portable
Navigation Devices, e-Books, Tablet PCs, etc
www.austriamicrosystems.com
Revision 1.03
1 - 67

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