Chip-cn-dat/Heroic-dat/HT7181-dat/2026-06-15-14-13-30.png
... ...
Binary files /dev/null and b/Chip-cn-dat/Heroic-dat/HT7181-dat/2026-06-15-14-13-30.png differ
Chip-cn-dat/Heroic-dat/HT7181-dat/HT7181-dat.md
... ...
@@ -0,0 +1,49 @@
1
+# HT7181
2
+
3
+- Datasheet: [[HT7181-datasheet.pdf]]
4
+
5
+- [[HT7181-dat]] - [[dcdc-boost-dat]] - [[heroic-dat]]
6
+
7
+
8
+## Applications
9
+
10
+- Wireless Speakers / Portable Speakers
11
+- Power Bank, Chargers
12
+- Power Interface (USB Type-C, Thunderbolt)
13
+- POS Terminal
14
+- Tablet PC / Notebook
15
+
16
+## Features
17
+
18
+- **Input voltage range:** 2.7V to 16V
19
+- **Output voltage range:** up to 16.8V
20
+- **Internal Fixed PWM frequency:** 360kHz
21
+- **Programmable switch peak current limit:** up to 14A
22
+- **High Efficiency:**
23
+ - 94% ($V_{IN} = 7.2V, V_{OUT} = 9.3V, I_{OUT} = 1.5A$)
24
+ - 90% ($V_{IN} = 7.2V, V_{OUT} = 9.3V, I_{OUT} = 7A$)
25
+ - 93% ($V_{IN} = 7.2V, V_{OUT} = 12V, I_{OUT} = 1.5A$)
26
+ - 90% ($V_{IN} = 7.2V, V_{OUT} = 12V, I_{OUT} = 5.5A$)
27
+ - 90% ($V_{IN} = 3.6V, V_{OUT} = 12V, I_{OUT} = 1A$)
28
+ - 85% ($V_{IN} = 3.6V, V_{OUT} = 12V, I_{OUT} = 2.2A$)
29
+- **Low Power:** 1.0µA current consumption during shutdown
30
+- **EMI Solution:** Two modes with different $t_r/t_f$
31
+- **Soft Start:** Programmable soft start
32
+- **Protection:** Output overvoltage protection (at 18V), thermal shutdown protection
33
+- **Package:** Pb-free SOP8L-PP
34
+
35
+### 16.8V, 14A Boost Converter
36
+
37
+![](2026-06-15-14-13-30.png)
38
+
39
+
40
+TheHT7181is ahigh-powerdensity,asynchronousboost converter with a 20mQ power switch to provide a high efficiencyandsmallsizesolutioninportablesystems.The HT7181 has wide input voltage range from 2.7 V to 16 V to support applications with single cell, two cell Lithium batteries and 12V lead-acid batteries. The device has 14A switchcurrentcapabilityandcanprovideanoutputvoltage up to 16.8V.
41
+
42
+The HT7181 also implements a programmable soft-start function and an adjustable switching peak current limit function. HT7181 integrates two modes with different tr/tf to balance different requirements of EMl and efficiency. Inaddition,thedeviceprovides18Voutputovervoltage protection, and thermal shutdown protection.
43
+
44
+
45
+
46
+
47
+
48
+## ref
49
+
Chip-cn-dat/Heroic-dat/HT7181-dat/HT7181-datasheet.pdf
... ...
Binary files /dev/null and b/Chip-cn-dat/Heroic-dat/HT7181-dat/HT7181-datasheet.pdf differ
Chip-cn-dat/Heroic-dat/heroic-dat.md
... ...
@@ -1,7 +1,8 @@
1
-
2
-# heroic-dat
3
-
4
-- [[HT6872-dat]]
5
-- HT8696
6
-
7
-
1
+
2
+# heroic-dat
3
+
4
+- [[HT6872-dat]]
5
+- [[HT8696-dat]]
6
+
7
+- [[HT7181-dat]] - [[dcdc-boost-dat]] - [[heroic-dat]]
8
+
Chip-cn-dat/xysemi-dat/XB4908-dat/2026-06-15-14-08-18.png
... ...
Binary files /dev/null and b/Chip-cn-dat/xysemi-dat/XB4908-dat/2026-06-15-14-08-18.png differ
Chip-cn-dat/xysemi-dat/XB4908-dat/XB4908-dat.md
... ...
@@ -0,0 +1,22 @@
1
+
2
+
3
+# XB4908-dat
4
+
5
+- [[battery-protector-1s-dat]] - [[xysemi-dat]] - [[XB8089-dat]] - [[XB4908-dat]]
6
+
7
+
8
+
9
+https://yzvideo-c.yizimg.com/398592/2025521-165926252.pdf
10
+
11
+The XB4908 SERIES product is a high integration solution for lithium-ion/polymerbattery protection. XB4908 SERIES contains advanced power MOSFET, high-accuracy voltage detection circuits and delay circuits. XB4908 SERIES is put into an ultra-small ESN4 package and only one externalcomponent makes it an ideal solution in limited space of battery pack.
12
+
13
+XB4908 SERIES has all the protection functions required in the battery application including overcharging, over-discharging, overcurrent and load short circuiting protection etc. The accurate overcharging detection voltage ensures safe and full utilization charging. The low standby current drains little current from the cell while in storage.
14
+
15
+The device is not only targeted for digital cellular phones, but also for any other Li-Ion and Li-Poly battery-powered information appliances requiring long-term battery life
16
+
17
+
18
+![](2026-06-15-14-08-18.png)
19
+
20
+
21
+
22
+## ref
... ...
\ No newline at end of file
Chip-cn-dat/xysemi-dat/xysemi-dat.md
... ...
@@ -1,10 +1,15 @@
1 1
# xysemi-dat
2 2
3
+
4
+- [[xysemi-dat]] - [[XB4908-dat]]
5
+
6
+
7
+
3 8
- [[dcdc-boost-dat]] - [[xysemi-dat]]
4 9
5 10
- [[capacitor-dat]]
6 11
7
-- [[battery-protector-1s-dat]] - [[xysemi-dat]]
12
+- [[battery-protector-1s-dat]] - [[xysemi-dat]] - [[XB8089-dat]] - [[XB4908-dat]]
8 13
9 14
## XB8089D
10 15
Home.md
... ...
@@ -3,7 +3,7 @@
3 3
4 4
- [legacy wiki page V1 here ](https://w.electrodragon.com)
5 5
- This web application may encounter error "502 bad gateway", please visit 5 minutes later. It is an experimental wiki system.
6
-
6
+- All info keep udpating, so nothing is ready and all mess.
7 7
8 8
## Contact
9 9
battery-dat/battery-BMS-dat/battery-protector-1s-dat/battery-protector-1s-dat.md
... ...
@@ -73,7 +73,8 @@ $$I = \frac{0.15}{0.05} = 3\text{A}$$
73 73
74 74
## option XB7608
75 75
76
-- [[xysemi-dat]]
76
+- [[battery-protector-1s-dat]] - [[xysemi-dat]] - [[XB8089-dat]] - [[XB4908-dat]]
77
+
77 78
78 79
79 80
## ref
battery-dat/battery-BMS-dat/battery-protector-dat/battery-protector-dat.md
... ...
@@ -15,6 +15,9 @@
15 15
16 16
- [[battery-protector-3s-dat]] - [[battery-protector-dat]]
17 17
18
+
19
+
20
+
18 21
## full protector
19 22
20 23
... ...
@@ -83,6 +86,13 @@ boards specs for reference only
83 86
84 87
![](2026-06-08-01-38-04.png)
85 88
89
+
90
+## chip
91
+
92
+- [[xysemi-dat]]
93
+
94
+
95
+
86 96
## ref
87 97
88 98
- [[battery-protector]] - [[battery]]
... ...
\ No newline at end of file
power-dat/DCDC-dat/dcdc-boost-dat/dcdc-boost-dat.md
... ...
@@ -38,6 +38,7 @@ high power - [[OPMS080-dat]]
38 38
39 39
- [[led-driver-dat]] - [[dcdc-boost-dat]]
40 40
41
+- [[HT7181-dat]] - [[dcdc-boost-dat]] - [[heroic-dat]] == 14A
41 42
42 43
## compare
43 44