参数资料
| 型号： | AS3607A-BQFP |
| 厂商： | ams |
| 文件页数： | 20/71页 |
| 文件大小： | 0K |
| 描述： | IC PMU PROGR STARTUP 36-QFN |
| 标准包装： | 20,000 |
| 应用： | 手持/移动设备 |
| 电流 - 电源： | 160µA |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-VFQFN 裸露焊盘 |
| 供应商设备封装： | 36-QFN（6x6） |
| 包装： | 带卷 (TR) |
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AS3606 AS3607 2v2
Data Sheet - D e t a i l e d D e s c r i p t i o n - P o w e r M a n a g e m e n t F u n c t i o n s
8.3 30V Step-Up DCDC Converter
The integrated Step-Up DC/DC Converter is a high efficiency current-mode PWM regulator, providing an output voltage up to 30V. A constant
switching-frequency results in a low noise on supply and output voltages.
It has two programmable high voltage current sinks (0 to 38.25mA) for driving e.g. white LEDs as back-light. It can drive also unbalanced strings
due to the internal automatic feedback selection.
A voltage feedback mode allows generating constant supply voltages for e.g. OLEDs. The output voltage is set by an external resistor divider
and an internal current sink.
An internal protection circuit will shut down the regulator if the voltage on FBSU exceeds the over voltage threshold. No more external protection
has to be used to avoid an exceeding of the operation conditions in a no load situation.
Figure 10. DCDC15 Block Diagram
8.3.1
Voltage Feedback
Setting bit SU_CURR_FB = 0 enables voltage feedback at pin FBSU.
The output voltage is regulated to a constant value, given by (Bit SU_GAIN should be set to 1 in this configuration)
U Step up_out = (R 1 +R 2 )/R 2 *1.25 + I FB * R 1
If R2 is not used, the output voltage is by (Bit SU_GAIN should be set to 0 in this configuration)
U Step up_out = 1.25 + I FB * R 1
Where:
U Step up_out = Step Up DC/DC Converter output voltage
R 1 = Feedback resistor R1
R 2 = Feedback resistor R2
I FB = Tuning current at pin FBSU; 0 to 31μA
(EQ 1)
(EQ 2)
www.austriamicrosystems.com
Revision 1.03
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS3607ABQFP00 | 制造商:ams 功能描述:QFN36 (6x6) |
| AS3607-ABQFP-00 | 制造商:AMS 功能描述:IC PMU CHARGER/BKLT DVR 36QFN |
| AS3607A-BQFP-00 | 制造商:AMS 功能描述:Power Management IC QFN36 (6X6) |
| AS3607A-BQFP-03 | 制造商:ams 功能描述: |
| AS3607-BQFP-01 | 制造商:AMS 功能描述:3 Buck DCDCs, 5 LDOs, 1A Linear Charger, General ADC, Programmable Startup |
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