A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 36

• 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

VIPer
ST’s VIPer series of offline switch-mode power supplies combines an optimized,
high-voltage, vertical power MOSFET with state-of-the-art PWM circuitry. The
result is a truly innovative offline LED SMPS solution that is simpler, quicker, less
expensive and able to address low-power, high-efficiency applications delivering
up to 14 W with a universal input voltage range.
Fully compliant with eco standards, the VIPer series includes the VIPERx2
family and the new VIPerPlus family, with the subfamilies VIPERx7, VIPERx6 and
VIPERx5, offering new functionalities as well as higher performance with lower
component count.
Both the output voltage and current can be regulated by using a bipolar-based
circuitry in non-isolated applications or an optocoupler driven by a TSM device
in isolated applications. This makes the VIPer series suitable for general LED
illumination, interior decoration lighting, and neon and bulb replacement.
Key features
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STEVAL-ILL017V1
STEVAL-ILL026V1
EVLVIP27-7WLED
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800 V avalanche-rugged power section
PWM operation with fixed frequency and frequency jittering or QR control for
valley switching operation
Standby power < 50 mW at 265 Vac
Hysteretic thermal shutdown
HV startup
Limiting current with adjustable set point
Extra power timer for extra power capability
Sales code
®
Board
3.5 W non-isolated offline constant-current LED driver based on VIPer17HN
3 W non-isolated offline LED driver based on VIPer22AS-E
3.5 W non-isolated offline constant-current LED driver based on VIPer17HN
Description
Key benefits
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Cost-effective solutions with
minimum component count
High robustness
Advanced controllers and
functionalities
Easily meets all new energy
regulations:
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Portfolio with high differentiation and
continuous improvement
Technical support by tools and
competence centers
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High efficiency
Minimum standby current
AN2811: 3.5 W non-isolated offline
constant-current LED driver based on
VIPER17
AN2961: STEVAL-ILL026V1 non-isolated
3 W offline LED driver based on the
VIPER22A-E
AN3212: 3.5 W to 7 W high power factor
offline LED driver based on VIPer devices
SO-16
Technical documents
DIP-7