A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 38

• Manufacturer Part Number: A5974DTR
• Description: IC BUCK ADJ 2.5A 8SOIC
• Manufacturer: STMicroelectronics
• Series: -r
• Type: Step-Down (Buck)r

Specifications of A5974DTR

• Internal Switch(s): -
• Synchronous Rectifier: -
• Number Of Outputs: -
• Voltage - Output: 1.235 V ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 250kHz
• Voltage - Input: 4 V ~ 36 V
• Operating Temperature: -
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11424-2

PFC controllers
L6562A/AT
The L6562A/AT is a current-mode PFC controller operating in transition mode (TM).
The highly linear multiplier includes a special circuit that reduces AC input current
distortion and allows wide-range mains operation with an extremely low THD, even
over a large load range. The output voltage is controlled by means of a voltage-
mode error amplifier and an accurate internal voltage reference (1% @ Tj = 25 °C).
The device features extremely low consumption (60 μA max. before start-up and
<5 mA operating) and includes a disable function suitable for IC remote on/off
control, which makes it easier to comply with energy saving requirements (Blue
Angel, EnergyStar, Energy2000, etc.). In addition to the typical boost converter
used as PFC front-end preregulator in dual-stage solutions, the L6562A/AT is
suitable for modified buck converters, buck- boost converters and single-stage
HPF flyback converters covering up to 100 W.
Key features
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Application example
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AC
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Proprietary multiplier design for minimum THD
Very accurate adjustable output OVP protection
Ultra-low start-up current: 30 μA
Low quiescent current: 2.5 mA
Digital leading-edge blanking on current sense
Disable function on E/A pin
1% (@ Tj =25 °C) internal reference voltage
L6562A
Off-line single stage modified
buck-boost LED driver
AC
L6562A
Key benefits
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More total power available
More power available on each outlet
Better efficiency in energy
transportation
Transformer size reduction
Reduction of disturbances
on the line
Compliance with EN61000-3-2
regulation mandatory for input
power >75 W
DIP-8
Off-line single stage modified
buck LED driver
SO-8