Low

TEXAS INSTRUMENTS  UCC2809D-1  PWM Controller Current Mode, 17.5V-8V supply, 1 MHz, 800mV/80mA out, SOIC-8

TEXAS INSTRUMENTS UCC2809D-1
Technical Data Sheet (10.07KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The UCC2809D-1 is a BCDMOS low power economy primary side Pulse Width Modulation (PWM) Controller contains all the control and drive circuitry required for off-line and isolated DC to DC fixed frequency current-mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, user accessible voltage reference, logic to ensure latched operation, a PWM comparator and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-channel MOSFETs, is low in the off state. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The family has UVLO thresholds and hysteresis levels for off-line and DC-to-DC systems as shown in the table to the left.
  • User programmable soft start with active low shutdown
  • User programmable maximum duty cycle
  • Accessible 5V Reference
  • Undervoltage lockout
  • Low 100µA Startup current
  • Green product and no Sb/Br

Product Information

Input Voltage:
-
Output Voltage:
800mV
Output Current:
80mA
Supply Voltage Min:
8V
Supply Voltage Max:
17.5V
Controller IC Case Style:
SOIC
No. of Pins:
8Pins
Frequency:
1MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
Mexico

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000163

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