MAX680:+5V至±10V电压变换器

同时产生正、负双输出

The MAX680/MAX681 are monolithic, CMOS, dual charge-pump voltage converters that provide ±10V outputs from a +5V input voltage. The MAX680/MAX681 provide both a positive step-up charge pump to develop +10V from +5V input and an inverting charge pump to generate the -10V output. Both parts have an on-chip, 8kHz oscillator. The MAX681 has the capacitors internal to the package, and the MAX680 requires four external capacitors to produce both positive and negative voltages from a single supply. The output source impedances are typically 150Ω, providing useful output currents up to 10mA. The low quiescent current and high efficiency make this device suitable for a variety of applications that need both positive and negative voltages generated from a single supply. The MAX864/MAX865 are also recommended for new designs. The MAX864 operates at up to 200kHz and uses smaller capacitors. The MAX865 comes in the smaller µMAX® package.

关键特性
  • 95% Voltage-Conversion Efficiency
  • 85% Power-Conversion Efficiency
  • +2V to +6V Voltage Range
  • Only Four External Capacitors Required (MAX680)
  • No Capacitors Required (MAX681)
  • 500µA Supply Current
  • Monolithic CMOS Design
MAX680、MAX681:典型工作电路
MAX680、MAX681:典型工作电路
应用
  • +5V至±10V逻辑电源
  • 从3V锂电池产生±6V
  • 电池供电应用
  • 数据采集
  • 手持式仪表(PDA、掌上电脑)
  • 运算放大器电源
  • 面板表
数据手册DataSheet
语言下载文件备注
英文MAX680-MAX681.pdfRev 1; 07/1996
关键参数
Part NumberTopologyVIN
(V)
VIN
(V)
ICC
(mA)
Unadj. VOUT
(V)
IOUT
(A)
Oper. Freq.
(kHz)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxmaxtypSee Notes
MAX680
  • Doubler
  • Dual Output
  • Inverter
  • Unregulated
262
  • +2xVIN
  • -2xVIN
0.018
  • -55 to +125
  • -40 to +85
  • 0 to +70
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
$1.92 @1k
技术资料
质量和环境数据
相关产品
  • MAX864:双输出电荷泵,带有关断
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX680C/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX680CPA停止供货MAX680CPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX680CPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX680CSA停止供货MAX680CSA+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX680CSA+生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX680CSA+T生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX680CSA-T停止供货MAX680CSA+TN.SO;8引脚0°C至+70°C参考数据资料
MAX680EJA停止供货CDIP(N),;8引脚;82.6mm²-40°C至+85°CRoHS/无铅:否
MAX680EPA停止供货MAX680EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX680EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX680ESA停止供货MAX680ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX680ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX680ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX680ESA-T停止供货MAX680ESA+TSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX680MJA生产中CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX680MJA/883B生产中CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX680-MAX681.pdf MAX680
Load-Disconnect Switch Halts Battery Discharge to Protect Rechargeable Batteries MAX8211
MAX680.pdf MAX680
MAX680-MAX681.pdf MAX681