Figure 18.
Foldback evaluation board (schematic)
RS3+
470
RS3-
470
CVcc_3_btm
4.7 uF
C10
4.7uF
U3
CFLAT20
1 2 3 4 5 6 7 8 9
10
11
17
18
19
20
16 15 14 13 12
S
CH
3
S
T
PS
315
0
V
D
_3
P-ch3
STRH40P10
0
C9
4.7uF
Rhys_3
2.61k
Rv_3
220k
Rsns_3
50m
VCC+_3
CN5
1
2
CN6
1
2
C11
4.7uF
0
VCC-_3
Rir_3
100k
RGND_3
1.2k
I_STM+_1
I_STM- _1
Rtms+_3
5k
IS
N
S
-_
1
IS
N
S+
_
1
VCC+_3
VCC-_3
Ccomp_3
CO
M
P_
1
CVcc_3
100nF
SE
T
_F
L
B
SET_STS
T_
O
F
F
IC
L
_G
N
D
I_
R
E
F
T_
O
N
ST
S
Rsts_3
50k
T
M
0
HY
S
UV
L
O
V
G
UVLO
HYS
VC
C
Rg_3
4R7
FOLDBACK MODE
Rcomp_3
1k
Ctm_3
4.7 pF
TC
_
O
N
TC
_
OF
F
R_flb
107k
Ruvlo_3
35.7k
Rtm_3
100k
Rtms-_3
5k
Csts_3
4.7 pF
ZD3
1SMB5929BT3G
C12
4.7uF
V
D
_3
2.2 nF
Csns_3 1uF
5.1.1
Operation
5.1.1.1
Power on and testing environment
Connect a 22 V power supply to CN5, the load on CN6.
The telecommand section is not activated in this evaluation board. The analog and digital telemetries are
accessible on the R
TM
and R
STS
resistors respectively.
UM2605
Getting started
UM2605
-
Rev 1
page 18/27