Electrical Performance Specifications; Schematic; Tps7A78Evm-011 Schematic; Tps7A78Evm-011 Electrical Performance Specifications - Texas Instruments TPS7A78 User Manual

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Electrical Performance Specifications

Table 2 lists the electrical specifications for the TPS7A78EVM-011 evaluation board.
Table 2. TPS7A78EVM-011 Electrical Performance Specifications
PARAMETER
INPUT CHARACTERISTICS
AC input (RMS)
V
AC
Wall plug (RMS)
f Line frequency
AC
P Standby power
STANDBY
OUTPUT CHARACTERISTICS
V Output voltage
LDO_OUT
V Output ripple
LDO_OUT
ripple voltage
I Output current
OUT
SYSTEMS CHARACTERISTICS
Standby power
(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
configuration. When V
for proper connection of test equipment.
(3)
When V is 120 V (60 Hz), the EVM can source 55 mA (max) with a full-bridge configuration.
AC
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Schematic

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