STEVAL-ISA004V1 STMicroelectronics, STEVAL-ISA004V1 Datasheet - Page 7
![EVAL BOARD DUAL OUTPUT VIPER22A](/photos/9/13/91315/steval-isa004v1_sml.jpg)
STEVAL-ISA004V1
Manufacturer Part Number
STEVAL-ISA004V1
Description
EVAL BOARD DUAL OUTPUT VIPER22A
Manufacturer
STMicroelectronics
Series
VIPER™r
Type
MOSFET & Power Driverr
Datasheets
1.VIPER22ADIP-E.pdf
(21 pages)
2.STEVAL-ISA004V1.pdf
(4 pages)
3.STEVAL-ISA004V1.pdf
(4 pages)
Specifications of STEVAL-ISA004V1
Mfg Application Notes
VIPer22A Dual Output - AppNote AN1736
Design Resources
STEVAL-ISA004V1 Gerber Files STEVAL-ISA004V1 Schematic STEVAL-ISA004V1 Bill of Materials
Main Purpose
AC/DC, Primary Side
Outputs And Type
2, Isolated
Power - Output
10W
Voltage - Output
5V, 12V
Current - Output
1A, 420mA
Voltage - Input
90 ~ 264VAC
Regulator Topology
Flyback
Frequency - Switching
60kHz
Board Type
Fully Populated
Utilized Ic / Part
VIPer22A
Architecture
Analog
Applications
Power
Input Voltage
3.3 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
VN808CM
Other names
497-5864
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
4
4.1
Operations
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.
AC IN
F1
presents a secondary feedback through an optocoupler driven by a TSM101. This
C3
Rectangular U-I output characteristics for battery charger
T2
D4
C4
Doc ID 12050 Rev 2
C5
C10
ISO1
C6
R5
R7
R10
FB
U1
VIPerX2A
VDD
R2
CONTROL
R3
C8
R8
R1
TSM101
U2
C2
D3
SOURCE
-
GND
Vref
+
DRAIN
Vcc
D1
D5
+
-
T1
C7
R4
C9
D2
C1
Operations
R6
R9
DCOUT
GND
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