UC3844-D08-T UTC [Unisonic Technologies], UC3844-D08-T Datasheet - Page 2

• Manufacturer Part Number: UC3844-D08-T
• Description: HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
• Manufacturer: UTC [Unisonic Technologies]

UC3844/45
PIN NO
1
2
3
4
5
6
7
8
PIN DESCRIPTION
PIN CONFIGURATION
Compensation Error amplifier output, this pin is made available for loop compensation.
PIN NAME
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Output
I
R
GND
SENSE
V
V
V
T
REF
FB
/C
CC
T
Voltage Feedback, the inverting input of the Error Amplifier. It is normally connected to the
switching power supply output through a resistor divider.
A voltage proportional to inductor current is connected to this input. The PWM uses this
information to terminate the output switch conduction.
The Oscillator frequency and maximum output duty cycle are programmed by connecting
resistor R
Power ground.
This output directly drives the gate of a power MOSFET. Peak currents up to 1A are
sourced and sunk by this pin. The output switches at one-half the oscillator frequency.
Positive supply.
Reference output, provides charging current for capacitor C
T
to Vref and capacitor C
T
to ground. Operation to 1 MHz is possible.
FUNCTION
LINEAR INTEGRATED CIRCUIT
T
though resistor R
QW-R103-010,C
T
.
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