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参数资料
| 型号： | TC7662BEOAG |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 35 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 9/11页 |
| 文件大小： | 92K |
| 代理商： | TC7662BEOAG |
7
TC7662B
CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC7662B-8 9/11/96
2001 Microchip Technology Inc.
DS21469A
1
2
3
4
8
7
6
5
TC7662B
1
F
+
1
F
–
+5 LOGIC SUPPLY
TTL DATA
INPUT
RS232
DATA
OUTPUT
11
3
12
16
4
15
13
14
1
IH5142
+5V
-5V
Figure 13. RS232 Levels from a Single 5V Supply
Regulated Negative Voltage Supply
In some cases, the output impedance of the TC7662B
can be a problem, particularly if the load current varies
substantially. The circuit of Figure 12 can be used to over-
come this by controlling the input voltage, via an ICL7611
low-power CMOS op amp, in such a way as to maintain a
nearly constant output voltage. Direct feedback is advisable,
since the TC7662B’s output does not respond instanta-
neously to change in input, but only after the switching delay.
The circuit shown supplies enough delay to accommodate
the TC7662B, while maintaining adequate feedback. An
increase in pump and storage capacitors is desirable, and
the values shown provide an output impedance of less than
5
to a load of 10mA.
1
2
3
4
8
7
6
5
TC7662B
100
F
+
V+
100
F
VOUT
-
50k
100k
+8V
50k
10
F
–
+
800k
250K
VOLTAGE
ADJUST
+8V
56k
–
+
Figure 12. Regulating the Output Voltage
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7662BEPA | 功能描述:电荷泵 High Voltage RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| TC76B-1-101 | 功能描述:TRIMMER 100 OHM 0.1W TH RoHS:否 类别:电位计，可变电阻器 >> 微調器 系列:Trimpot® TC76 - 封闭框架 标准包装:500 系列:Trimpot® TC86 - 开放框架 电阻（欧姆）:100k 功率（瓦特）:0.3W 容差:±20% 温度系数:±250ppm/°C 匝数:单路 调节型:顶部调节 电阻材料:金属陶瓷 安装类型:通孔 端接类型:PC 引脚 包装:散装 尺寸/尺寸:方形 - 0.303" L x 0.268" W x 0.299" H（7.70mm x 6.80mm x 7.60mm） 其它名称:TC86P-104 |
| TC76N-1-101A | 制造商:Bourns Inc 功能描述: |
| TC76N-1-504A | 制造商:Bourns Inc 功能描述: |
| TC76P-1-102 | 制造商:Bourns Inc 功能描述: |
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