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UCC3895

UCC3895的特点(Features)

• Programmable Output Turn-on Delay
• Adaptive Delay Set
• Bidirectional Oscillator Synchronization
• Capability for Voltage Mode or Current Mode Control
• Programmable Soft Start/Soft Stop
  and Chip Disable via a Single Pin
• 0% to 100% Duty Cycle Control
• 7MHz Error Amplifier
• Operation to 1MHz
• Low Active Current Consumption
  (5mA Typical @ 500kHz)
• Very Low Current Consumption
  During Undervoltage Lock-out
  (150μA typical)

UCC3895的说明(Description)

The UCC3895 is a phase shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. It allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part can be used either as a voltage mode or current mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Since it is built in BCDMOS, it operates with dramatically less supply current than it’s bipolar counterparts. The UCC3895 can operate with a maximum clock frequency of 1MHz.

The UCC3895 and UCC2895 are offered in the 20 pin SOIC (DW) package, 20 pin PDIP (N) package, 20 pin TSSOP (PW) package, and 20 pin PLCC (Q). The UCC1895 is offered in the 20 pin CDIP (J) package, and 20 pin CLCC package (L).

UCC3895的技术参数(Specifications)

Supply Voltage (IDD < 10mA) . . . . . . . . . . . . . . . . . . . . . . . 17V
Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
REF current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15mA
OUT Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
Analog inputs
(EAP, EAN, EAOUT, RAMP,
SYNC, ADS, CS, SS/DISB) . . . . . . . . . . . . . . . –0.3V to REF+0.3V
Power Dissipation at TA=+25°C (N Package). . . . . . . . . . . . 1W
Power Dissipation at TA=+25°C (D Package) . . . . . . . . 650mW
Storage Temperature . . . . . . . . . . . . . . . . . . .–65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . –55°C to +125°C
Lead Temperature (soldering, 10 sec). . . . . . . . . . . . . . +300°C
Currents are positive into, negative out of the specified terminal.
Consult Packaging Section of Databook for thermal limitations
and considerations of package.

UCC3895的全国供应商

  供应商 型号 厂家 封装 批号 数量 备注 诚信积分 日期
捷达芯电子(香港)有限公司  深圳
0755-82546692/81979158
UCC3895 TI 0736 25 全新原装,深圳现货!!! 2001分-3000分
2040
2009-7-4 9:28:28
深圳市盛德尔电子有限公司  深圳
0755-61303795/61303791
UCC3895 TI TSSOP-20 07+NOP 15 市场最低价,欢迎订购 2001分-3000分
2944
2009-7-4 21:38:40
深圳市澳利信电子公司  深圳
0755-61303793
UCC3895 UC SOP 07+ 506 全新现货 2001分-3000分
2028
2009-7-4 21:19:12
北京市广源国利电子有限公司  北京市
010-68471136//68471136//
UCC3895 UNITRODE TSSOP20 06+ 1850 全新原装,柜台现货,欢迎您的来电。 4001分-5000分
4683
2009-7-4 20:45:18
汕头市盛隆电子元器件有限公司  深圳
0754-82331485
UCC3895 UC SOP/20 5000 诚信经营 互惠互利 盛隆电子 13413402 1001分-2000分
1719
2009-7-4 19:41:26

UCC3895

UCC3895 PDF

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文件大小:298979KB
厂家 TI [Texas Instruments]
简要
描述
BiCMOS Advanced Phase Shift PWM Controller

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相关型号

UCC37322DGN
UCC3895Q
UCC3895N
UCC3895PW
UCC5687PM
UCC5687PMTR
UCD7201
UCD7201PWP

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