Texas Instruments TPS7A78EVM-011, Руководство пользователя

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GND
SC_IN
GND
LDO_OUT
SC_IN
PFD
GND
PFD
100k
R4
100k
R3
SC1
SC2
MAX 26V 2.5A
MAX 16V 1A
MAX 5.5V 300mA
1
2
J2
1715721
TP1
AC P
TP8
LDO OUT
TP9
GND TP10
GND
TP6
PFD
TP2
SC IN
TP11
EXT Pull-up
10µF
C7
DNP
0.33uF
C17
DNP
1uF
C1
10µF
C19
DNP
100uF
C20
DNP
2.21M
R1
22uF
C6
DNP
MAX 8V 1.5A
10µF
C5
DNP
2.2uF
C4
DNP
SC3
SC4
LDO_IN MAX 6V 300mA
TP3
LDO IN
0.47uF
C9
DNP
1uF
C10
DNP
470uF
C12
DNP
1000uF
C13
DNP
10µF
C11
GND
PG_S
ACp
ACn
TP4
AC N
GND
1
2
J1
2.2uF
C16
DNP
270 VRMS 2.5A 50/60 Hz
270 VRMS 2.5 A 50/60 Hz
F1
3403.0020.11
0.47uF
C15
0.068uF
C14
DNP
1 2
J5
PF_S
8200pF
C21
DNP
10uF
C2
DNP
1uF
C3
1uF
C18
120uF
C8
1
2
J4
GND
PG_S
PF_S
PG
PF
1
2
J6
1
2
J7
PG_S
PF_S
PG
PF
TP7
PG
TP5
PF
Line
Neutral
PF_S PG_S
1A
1
GND
2
2A
3
2Y
4
VCC
5
1Y
6
SN74LVC2G07DBVR
U2
DNP
1 2
J3
SC1+
2
SC1-
1
SCIN
3
PFD
4
AC+
5
GND
6
AC-
7
LDO_OUT
8
LDO_IN
9
PF
10
PG
11
GND
12
SC2+
13
SC2-
14
GND
15
TPS7A7833PWPR
U1
200k
R2
RV1
V430MA7B
280
R5
280
R6
280
R7
LDO_IN
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Electrical Performance Specifications
5 SBVU048 – March 2019
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Copyright © 2019, Texas Instruments Incorporated
TPS7A78EVM-011 Evaluation module
3 Electrical Performance Specifications
Table 2 lists the electrical specifications for the TPS7A78EVM-011 evaluation board.
(1)
All measurements are done with a half-bridge (HB) default EVM setting (unless otherwise noted).
(2)
Output current level is determined by the size of the cap-drop (C
15
), the size of the bulk capacitor (C
8
), and the device
configuration. When V
AC
is 70 V (60 Hz), the EVM can source 16 mA (max); see Section 5 for EVM configuration and Section 6
for proper connection of test equipment.
(3)
When V
AC
is 120 V (60 Hz), the EVM can source 55 mA (max) with a full-bridge configuration.
Table 2. TPS7A78EVM-011 Electrical Performance Specifications
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT CHARACTERISTICS
V
AC
AC input (RMS)
70 120
V
70 230
Wall plug (RMS)
120
230
f
AC
Line frequency 45 60/50 Hz
P
STANDBY
Standby power
V
AC
= 120 V (60 Hz),
I
OUT
= 0 mA, R6 and R7 are
shorted; see Section 4 .
104 mW
OUTPUT CHARACTERISTICS
V
LDO_OUT
Output voltage V
AC
= 120 V (60 Hz) 3.201 3.3 3.399 V
V
LDO_OUT
ripple
Output ripple
voltage
V
AC
= 120 V (60 Hz) 10 mVpp
I
OUT
Output current V
AC
= 120 V (60 Hz) 16
(2)
27 55
(3)
mA
SYSTEMS CHARACTERISTICS
Standby power
V
AC
= 120 V (60 Hz),
I
OUT
= 0 mA
104 mW
4 Schematic
Figure 1 shows a schematic for the TPS7A78EVM-011.
Figure 1. TPS7A78EVM-011 Schematic