CAT4026_11 Datasheet, PDF (2/14 Pages) ON Semiconductor – 6-Channel LED Controller

CAT4026
LED−LLC VOUT
LLC
Feedback
Circuit
Current
Feedback
Voltage
Feedback
Option
5V
SHORT
OPEN
VC IFB
VDD
FLT−SCA
FLT−OCA
PWM
ANLG
PWM
ANLG
GND
10 k
C1
1 nF
OCA C1 C3
CAT4026
1.8 V output (user option) ^BAS21LT1
X6−Diodes
5V
HI−SENSE
ZvSCA
LO−SENSE
VA
SCA VCS
X6−Diodes
BAS21LT1
BASE[1:6]
6
RSET[1:6]
6
Notes: Q1 to Q6 NPN power transistor MJD340 from ON Semiconductor.
External power−derating circuit not shown.
6 Channel Cathode Bus
6 Channel Cathode Bus
Q1
Q6
6−Channels
R1
R6
Figure 1. Typical Application Circuit
Table 1. ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VDD Voltage Range
PWM, ANLG, FLT−OCA, FLT−SCA Voltage Range
V_in
−0.3 to 7
V
PWM
−0.3 to 7 V or (V_in + 0.3),
V
whichever is lower
RSET[x], BASE[x]
−0.3 to 7 V or (V_in + 0.3),
V
whichever is lower
Maximum Junction Temperature
T_J(max)
150
°C
Storage Temperature Range
T_STG
−65 to 150
°C
Lead Temperature Soldering
T_SLD
260
°C
Reflow (SMD Styles Only), Pb−Free Versions (Note 3)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
This device meets latchup tests defined by JEDEC Standard JESD78.
3. For information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
Table 2. THERMAL CHARACTERISTICS
Rating
Symbol
Value
Thermal Characteristics, SOIC−28
Thermal Resistance, Junction−to−Air (Note 4)
R_θJA
79
Thermal Resistance, Junction−to−Case (Note 4)
R_ψJC
23
4. Values based on copper area of 645 mm² (or 1 in²) of 1 oz copper thickness and FR4 PCB substrate.
Unit
°C/W
Table 3. OPERATING RANGES
Rating
Input Voltage
Ambient Temperature
Symbol
Min
V_in
4.5
T_A
−40
Max
Rating
5.5
V
85
°C
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