Texas Instruments Evaluation Module for UCC25230 DC/DC Switching Converter UCC25230EVM-754 UCC25230EVM-754 데이터 시트
제품 코드
UCC25230EVM-754
L
o
a
d
-1
1
3
V
/0
.1
5
A
L
o
a
d
-2
1
3
V
/0
.1
5
A
+
+
A
B
C
A
B
C
V
o
lt
a
g
e
S
o
u
rce
V
sc1
3
6
to
7
2
V
D
C
Vm1
Vm2
V
m
s
1
VOUT1-ripple
(TP8)
VOUT2-ripple
(TP7)
+
+
+
+
+
Ams1
+
V
O
U
T
-1
V
O
U
T
-2
VOUT-1 measure
VOUT-2 measure
Test Setup
5
Test Setup
5.1
Test Equipment
Voltage Source: Vsc1, the input voltage shall be a variable DC source capable of supplying up to 72 V
DC
at no less than 0.35 A
DC
, and connected to J1 and Ams1 as shown in
.
Multimeters:
•
Ams1: IIN, 0 mA
DC
to 100 mA
DC
, ammeter, four digits display.
•
Vms1: VIN, 0-V to 75-V voltmeter, three and half digits display.
•
Vm1: VOUT1, 0-V to 13-V voltmeter, three and half digits display.
•
Vm2: VOUT2, 0-V to 13-V voltmeter, three and half digits display.
Output Load (Load-1 and Load-2):Electronic, 0 mA
DC
to 200 mA
DC
(2 units), For the output load on
VOUT1 and VOUT2, a programmable electronic load capable of sinking not less than 100 mA
DC
shall be
used. The loads should have a current display, if not then an ammeter should be added in series with the
load. Refer to the schematic shown in
load. Refer to the schematic shown in
Oscilloscope: A 20-MHz or equivalent analog or digital oscilloscope with Tektronix P6138 or equivalent
oscilloscope probe. Set scope for AC coupling measurement with 20-MHz bandwidth limiting. Use
20-mV/div. vertical resolution, 5.0-
oscilloscope probe. Set scope for AC coupling measurement with 20-MHz bandwidth limiting. Use
20-mV/div. vertical resolution, 5.0-
µ
s/div. horizontal resolution for VOUT ripple voltage test. Set horizontal
cursor to measure ripple voltage.
Recommended Wire Gauge: The minimum recommended wire size is AWG #26, with the total length of
wire less than 8 feet (4 feet output, 4 feet return).
wire less than 8 feet (4 feet output, 4 feet return).
Ventilation FAN: A small fan capable of 200 LFM to 400 LFM is optional to reduce component
temperatures, but it is not a requirement in the test at room temperature
temperatures, but it is not a requirement in the test at room temperature
5.2
Recommended Test Setup
Figure 2. UCC25230EVM-754 Recommended Test Set Up
5
SLUU670
–
November 2011
1.5-W Forward-Flyback DC-to-DC Converter for 48-V Telecom Biasing Supply
Copyright
©
2011, Texas Instruments Incorporated