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| LM3424 Datasheet, PDF (29/69 Pages) National Semiconductor (TI) – Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs | |||
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www.ti.com
8.2 Typical Applications
8.2.1 Basic Topology Schematics
VIN
CIN
RUV2
1
VIN
2
EN
L1
LM3424
20
HSP
RHSP
19
HSN
RHSN
CCMP
3
COMP
18
SLOPE
RSLP
RCSH
4
CSH
17
IS
RUVH
RUV1
RT
5
RT/SYNC
6
nDIM
CSS
7
SS
16
VCC
CBYP
15
GATE
14
GND
RGAIN
8
TGAIN
13
DDRV
LM3424, LM3424-Q1
SNVS603C â AUGUST 2009 â REVISED AUGUST 2015
D1
CFS
RFS
RSNS
ILED
COUT ROV2
Q1
RLIM
Q2
RREF1
9
TSENSE
10
TREF
DAP
CREF
12
OVP
11
VS
RREF2
RBIAS
COV
ROV1
Q3
PWM
CNTC
NTC
Figure 36. Boost Regulator (VIN < VO)
Copyright © 2009â2015, Texas Instruments Incorporated
Product Folder Links: LM3424 LM3424-Q1
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