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HM5821 Datasheet(PDF) 7 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Part # HM5821
Description  3A switch charging, 2.4A synchronous boost mobile power supply dedicated management IC
PDF  7 Pages
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Manufacturer  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Direct Link  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM5821 Datasheet(HTML) 7 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

  HM5821 Datasheet HTML 1Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM5821 Datasheet HTML 2Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM5821 Datasheet HTML 3Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM5821 Datasheet HTML 4Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM5821 Datasheet HTML 5Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM5821 Datasheet HTML 6Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM5821 Datasheet HTML 7Page - Shenzhen Huazhimei Semiconductor Co., Ltd  
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HM58XX
REV: 1.5
7 / 7
HM58
XX 输出电压可以通过调整反馈电阻 Rfb 在 5.0V～5.5V 之间调节（Rfb＝0 时，Vout=5.0V；Rfb
每增大 1k，Vout 增加 0.02V）。
2. 放电指示
电量
C（%）
LED1
LED2
LED3
LED4
80％～100％
ON
ON
ON
ON
55％～80％
ON
ON
ON
OFF
30％～55％
ON
ON
OFF
OFF
5％～30％
ON
OFF
OFF
OFF
5%
Flash
OFF
OFF
OFF
0%
OFF
OFF
OFF
OFF
3. 升压效率
4. 电池(主板)温度监测保护
HM58
XX 通过采样 NTC 电阻电压连续监视电池（主板）温度，一旦监测到电池（主板）温度超出规定温
度范围，芯片通过限制输入电流，使输出功率降低为最大输出功率的 1/2，直到温度恢复到正常范围以内。
按键
• 短按按键（30ms）可开启／关闭升压系统，开启升压系统同时会打开 LED 电量指示
• 开启升压系统 24 秒内无负载输出，自动关闭升压系统，LED 指示熄灭
• 长按按键（3S）开启／关闭手电筒功能



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