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| LM3429_14 Datasheet, PDF (22/50 Pages) Texas Instruments – LM3429Q1 N-Channel Controller for Constant Current LED Drivers | |||
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LM3429
SNVS616F â APRIL 2009 â REVISED JANUARY 2010
BUCK REGULATOR (VIN > VO)
VIN
CIN
RT
CCMP
RCSH
CT
1
VIN
LM3429
2
COMP
14
HSN
RHSN
13
HSP
RHSP
3
CSH
12
IS
4
RCT
5
AGND
11
VCC
CBYP
10
GATE
RUV2
RUV1
RUVH
PWM
6
OVP
7
nDIM
Q3
DAP
9
PGND
8
NC
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CFS
RFS
D1
ILED
L1
RSNS
CO
Q1
RLIM
ROV2
Q2
COV ROV1
BUCK-BOOST REGULATOR
L1
VIN
CIN
RT
CCMP
RCSH
CT
1
VIN
LM3429
2
COMP
14
HSN
RHSN
13
HSP
RHSP
3
CSH
12
IS
4
RCT
5
AGND
11
VCC
CBYP
10
GATE
RUV2
RUV1
RUVH
PWM
6
OVP
7
nDIM
Q3
DAP
9
PGND
8
NC
D1
ILED
CFS
RFS
CO
RSNS
VIN
Q1
RLIM
ROV2
VIN
Q2
COV
ROV1
Design Guide
Refer to Basic Topology Schematics section.
SPECIFICATIONS
Number of series LEDs: N
Single LED forward voltage: VLED
22
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Product Folder Links: LM3429
Copyright © 2009â2010, Texas Instruments Incorporated
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