VIPER12-LED-EV STMicroelectronics, VIPER12-LED-EV Datasheet - Page 7

• Manufacturer Part Number: VIPER12-LED-EV
• Description: VIPER LED POWER SUPPLY
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of VIPER12-LED-EV

• Mfg Application Notes: VIPower, AN1916 AppNote
• Current - Output / Channel: 350mA, 700mA, or 1.05A
• Outputs And Type: 1, Isolated
• Voltage - Output: 14V
• Features: Overvoltage Protection
• Voltage - Input: 90 ~ 264VAC
• Utilized Ic / Part: VIPer12A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q2105641

VIPER12A-E
4
Rectangular U-I output characteristics
Figure 4.
A complete regulation scheme can achieve combined and accurate output characteristics.
Figure 4.
device offers two operational amplifiers and a voltage reference, thus allowing the regulation
of both output voltage and current. An integrated OR function performs the combination of
the two resulting error signals, leading to a dual voltage and current limitation, known as a
rectangular output characteristic. This type of power supply is especially useful for battery
chargers where the output is mainly used in current mode, in order to deliver a defined
charging rate. The accurate voltage regulation is also convenient for Li-ion batteries which
require both modes of operation.
presents a secondary feedback through an optocoupler driven by a TSM101. This
Rectangular U-I output characteristics for battery charger
Doc ID 11977 Rev 2
Rectangular U-I output characteristics
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