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Hot sale original electronics UC1843J CURRENT MODE PWM CONTROLLER 8-CD Power Supply Controller PWM Controller 8-CDIP
Original UC1843J Power Management (PMIC)
Product Details
DESCRIPTION
The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The IC includes: A bandgap reference trimmed to ±1% accuracy, an error amplifier, a current sense comparator with internal clamp to 1V, a high current totem pole output stage for fast switching of power MOSFETs, and an externally programmable oscillator to set frequency and maximum duty cycle. The undervoltage lock-out is designed to operate with 250µA typ. start-up current, allowing an efficient bootstrap supply voltage design.
KEY FEATURES
■ LOW START-UP CURRENT. (0.5mA max.)
■ TRIMMED OSCILLATOR DISCHARGE CURRENT. (See Product Highlight)
■ OPTIMIZED FOR OFF-LINE AND DC-TO-DC CONVERTERS.
■ AUTOMATIC FEED FORWARD COMPENSATION.
■ PULSE-BY-PULSE CURRENT LIMITING.
■ ENHANCED LOAD RESPONSE CHARACTERISTICS.
■ UNDER-VOLTAGE LOCKOUT WITH HYSTERESIS.
■ DOUBLE PULSE SUPPRESSION.
■ HIGH-CURRENT TOTEM POLE OUTPUT.
■ INTERNALLY TRIMMED BANDGAP REFERENCE.
■ 500KHz OPERATION.
■ LOW RO ERROR AMPLIFIER.
APPLICATIONS
■ ECONOMICAL OFF-LINE FLYBACK OR FORWARD CONVERTERS.
■ DC-DC BUCK OR BOOST CONVERTERS.
■ LOW COST DC MOTOR CONTROL.
Product Description
ANSC PART# |
ANSC- UC1843J |
Part# |
UC1843J |
Type: |
Integrated Circuits |
Manufactor |
Texas Instruments |
DC |
new |
Actual image of the product
Product Attributes
TYPE |
DESCRIPTION |
---|---|
Category |
Integrated Circuits (ICs) Power Management (PMIC) Power Supply Controllers, Monitors |
Manufacturer |
Texas Instruments |
Series |
UCx84x |
Packaging |
Tube |
Part Status |
Active |
DigiKey Programmable |
- |
Applications |
PWM Controller |
Voltage - Input |
-0.3V ~ 6.3V |
Voltage - Supply |
12V ~ 28V |
Current - Supply |
11 mA |
Operating Temperature |
-55°C ~ 125°C (TA) |
Mounting Type |
Through Hole |
Package / Case |
8-CDIP (0.300", 7.62mm) |
Supplier Device Package |
8-CDIP |
Product datasheet
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