Datasheet

R
OV1
= 15.8 k:
R
OV2
= 499 k:
= 39.8V
1.24V x (0.5 x 15.8 k: + 499 k:)
V
TURN-OFF
=
15.8 k:
1.24V x (0.5 x R
OV1
+ R
OV2
)
V
TURN-OFF
=
R
OV1
:== k15.7
-
-
0.62VV
OFFTURN
x R1.24V
OV2
=R
OV1
:x k4991.24V
- 0.62V40V
LM3429, LM3429-Q1
www.ti.com SNVS616G –APRIL 2009–REVISED MAY 2013
(139)
The closest standard resistor is 15.8 kΩ making V
TURN-OFF
:
(140)
The chosen components from step 12 are:
(141)
Design #1 Bill of Materials
Qty Part ID Part Value Manufacturer Part Number
1 LM3429 Boost controller TI LM3429MH
1 C
CMP
0.22 µF X7R 10% 25V MURATA GRM21BR71E224KA01L
1 C
F
2.2 µF X7R 10% 16V MURATA GRM21BR71C225KA12L
1 C
FS
0.1 µF X7R 10% 25V MURATA GRM21BR71E104KA01L
3 C
IN
4.7 µF X7R 10% 100V TDK C5750X7R2A475K
1 C
O
6.8 µF X7R 10% 50V TDK C4532X7R1H685K
1 C
OV
47 pF COG/NPO 5% 50V AVX 08055A470JAT2A
1 C
T
1000 pF COG/NPO 5% 50V MURATA GRM2165C1H102JA01D
1 D1 Schottky 100V 12A VISHAY 12CWQ10FNPBF
1 L1 33 µH 20% 6.3A COILCRAFT MSS1278-333MLB
1 Q1 NMOS 100V 32A FAIRCHILD FDD3682
1 Q2 PNP 150V 600 mA FAIRCHILD MMBT5401
1 R
CSH
12.4 kΩ 1% VISHAY CRCW080512K4FKEA
1 R
FS
10Ω 1% VISHAY CRCW080510R0FKEA
2 R
HSP
, R
HSN
1.0kΩ 1% VISHAY CRCW08051K00FKEA
1 R
LIM
0.04Ω 1% 1W VISHAY WSL2512R0400FEA
1 R
OV1
15.8 kΩ 1% VISHAY CRCW080515K8FKEA
1 R
OV2
499 kΩ 1% VISHAY CRCW0805499KFKEA
1 R
SNS
0.1Ω 1% 1W VISHAY WSL2512R1000FEA
1 R
T
35.7 kΩ 1% VISHAY CRCW080535K7FKEA
1 R
UV1
21 kΩ 1% VISHAY CRCW080521K0FKEA
1 R
UV2
150 kΩ 1% VISHAY CRCW0805150KFKEA
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