- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:直流/直流开关稳压器 - 电荷泵(无电感器)
- 功能描述:CMOS 电压转换器
- 点击这里打开及下载TL7660的技术文档资料
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The TL7660 is a CMOS switched-capacitor voltage converter that perform supply-voltage conversions from positive to negative. With only two noncritical external capacitors needed for the charge pump and charge reservoir functions, an input voltage within the range from 1.5 V to 10 V is converted to a complementary negative output voltage of -1.5 V to -10 V. The device can also be connected as a voltage doubler to generate output voltages up to 18.6 V with a 10-V input.
The basic building blocks of the IC include a linear regulator, an RC oscillator, a voltage-level translator, and four power MOS switches. To ensure latch-up-free operation, the circuitry automatically senses the most negative voltage in the device and ensures that the N-channel switch source-substrate junctions are not forward biased. The oscillator frequency runs at a nominal 10 kHz (for VCC = 5 V), but that frequency can be decreased by adding an external capacitor to the oscillator (OSC) terminal or increased by overdriving OSC with an external clock.
For low-voltage operation (VIN < 3.5 V), LV should be tied to GND to bypass the internal series regulator. Above 3.5 V, LV should be left floating to prevent device latchup.
The TL7660C is characterized for operation over a free-air temperature range of -40°C to 85°C. The TL7660I is characterized for operation over a free-air temperature range of -40°C to 125°C.
- Simple Voltage Conversion, Including
- Negative Converter
- Voltage Doubler
- Wide Operating Range. . .1.5 V to 10 V
- Requires Only Two External (Noncritical) Capacitors
- No External Diode Over Full Temperature and Voltage Range
- Typical Open-Circuit Voltage Conversion Efficiency. . .99.9%
- Typical Power Efficiency. . .98%
- Full Testing at 3 V
- APPLICATIONS
- On-Board Negative Supplies
- Data-Acquisition Systems
- Portable Electronics
- Vin (Min) (V)
- 1.5
- Vin (Max) (V)
- 10
- Vout (Min) (V)
- -1.5
- Vout (Max) (V)
- -10
- Iout (Max) (A)
- 0.1
- Regulated outputs (#)
- 1
- Switching frequency (Min) (kHz)
- 3
- Switching frequency (Max) (kHz)
- 100
- Iq (Typ) (mA)
- 0.11
- Rating
- Catalog
TL7660的完整型号有:TL7660CD、TL7660CDGKR、TL7660CDGKT、TL7660CDR、TL7660CP、TL7660ID、TL7660IDGKR、TL7660IDGKT、TL7660IDR、TL7660IP,以下是这些产品的关键参数及官网采购报价:
TL7660CD,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:75个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660CD的批量USD价格:.596(1000+)
TL7660CDGKR,工作温度:-40 to 85,封装:VSSOP (DGK)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660CDGKR的批量USD价格:.517(1000+)
TL7660CDGKT,工作温度:-40 to 85,封装:VSSOP (DGK)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660CDGKT的批量USD价格:.616(1000+)
TL7660CDR,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660CDR的批量USD价格:.32(1000+)
TL7660CP,工作温度:-40 to 85,封装:PDIP (P)-8,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网TL7660CP的批量USD价格:.572(1000+)
TL7660ID,工作温度:-40 to 125,封装:SOIC (D)-8,包装数量MPQ:75个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660ID的批量USD价格:.656(1000+)
TL7660IDGKR,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660IDGKR的批量USD价格:.577(1000+)
TL7660IDGKT,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660IDGKT的批量USD价格:.676(1000+)
TL7660IDR,工作温度:-40 to 125,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL7660IDR的批量USD价格:.557(1000+)
TL7660IP,工作温度:-40 to 125,封装:PDIP (P)-8,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网TL7660IP的批量USD价格:.631(1000+)
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