A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 40

• 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

Resonant and quasi-resonant controllers
L6599A/AT
The L6599A/AT is a double-ended controller specific for the series-resonant half-
bridge topology. It provides 50% complementary duty cycle: the high-side and
low-side switches are driven on/off 180° out-of-phase for exactly the same time.
Output voltage regulation is obtained by modulating the operating frequency. A
fixed deadtime inserted between the turn-off of one switch and the turn-on of the
other one guarantees soft-switching and enables high-frequency operation.
Key features
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Q
Q
Q
Q
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Application example
40
EVL130W-SL-EU
EVL130W-STRLIG
Q
Q
Q
Q
Q
Q
Q
Q
Q
50% duty cycle, variable frequency control of resonant half-bridge
High-accuracy oscillator
Operating frequency: up to 500 kHz
Two-level OCP: frequency shift and latched shutdown
Interface with PFC controller
Latched disable input
Burst-mode operation at light load
Input for power-on/off sequencing or brownout protection
Non-linear soft-start for monotonic output voltage rise
Sales code
Input
filter
PF controller
L6562A/AT
Board
Application example: offline two-stages solution, LLC resonant half bridge with PFC stage
48 V - 130 W LED street lighting SMPS based on L6562AT and L6599AT for
European input mains range
48 V - 130 W LED street lighting SMPS based on L6562AT and L6599AT for
wide input mains range
L6599A/AT
Resonant
controller
Description
Key benefits
Q
Q
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control
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Advanced standby performances
Compliance to the main worldwide
energy programs (EPA2, Energy
Star, etc.)
Compliance to the main worldwide
EMI regulations
V
DC-DC
AN3105: 48 V - 130 W high efficiency
converter with PFC for LED street lighting
applications - European version
AN3106: 48 V - 130 W high-efficiency
converter with PFC for LED street lighting
applications
DIP-16
Technical documents
DC-DC
SO-16N