UCC2809PTR-1 by Texas Instruments | APACSecondary Side PWM Controllers | Avnet ASIA
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信息

UCC2809PTR-1

Texas Instruments

Secondary Side PWM Cntrlr ECO PRIM 1MHz 8-Pin VSSOP T/R

制造商料号#: UCC2809PTR-1

替代型号#: UCC2809PTR-1


通过RoHS认证

描述

文档

替代/替换

信息

The UCC3809 family of BCDMOS economy low power integrated circuitscontains all the control and drive circuitry required for off-line and isolatedDC-to-DC fixed frequency current mode switching power supplies withminimal external parts count. Internally implemented circuits includeundervoltage lockout featuring startup current less than 100µA, a user accessiblevoltage reference, logic to ensure latched operation, a PWM comparator,and a totem pole output stage to sink or source peak current. Theoutput stage, suitable for driving N-Channel MOSFETs, is low in the offstate.

Oscillator frequency and maximum duty cycle are programmed with tworesistors and a capacitor. The UCC3809 family also features full cycle softstart.

The family has UVLO thresholds and hysteresis levels for off-line andDC-to-DC systems as shown in the table to the left.

The UCC3809 and the UCC2809 are offered in the 8 pin SOIC (D), PDIP(N), TSSOP (PW), and MSOP (P) packages. The small TSSOP andMSOP packages make the device ideal for applications where boardspace and height are at a premium.

技术参数

  • User Programmable Soft Start With Active Low Shutdown
  • User Programmable Maximum Duty Cycle
  • Accessible 5V Reference
  • Undervoltage Lockout
  • Operation to 1MHz
  • 0.4A Source/0.8A Sink FET Driver
  • Low 100µA Startup Current

技术特性

描述
寻找类似物料
Switching Frequency
1000 kHz
Lead Finish
Gold
Product Dimensions
3 x 3 x 0.97 mm
Supplier Package
VSSOP
Pin Count
8
Operating Temperature
-40 to 85 °C
Type
Economy Primary Side PWM Controller
Number of Outputs
1
Mounting
Surface Mount
Max Processing Temp
260
MSL Level
2

ECCN / UNSPSC

描述
ECCN:
EAR99
计划交货期 B:
8542390000
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101

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