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CAT4106HV4-GT2

P1-P3P4-P6P7-P9P10-P12P13-P15
© Semiconductor Components Industries, LLC, 2014
June, 2014 − Rev. 4
1 Publication Order Number:
CAT4106/D
CAT4106
6 W Quad Channel DC/DC
LED Driver with Diagnostics
Description
The CAT4106 is an integrated multi−channel LED driver and high
power DC/DC converter suitable for powering backlighting
applications up to a total of 6 watts. Up to four matched LED strings
can be accurately programmed with uniform drive current set by a
single external resistor. Each output channel is suitable for LED string
voltages of up to 36 V. The driver automatically adjusts the output
voltage to drive the highest forward voltage string with the minimum
headroom voltage maximizing the efficiency.
High resolution dimming control is achieved by the EN/PWM logic
pin which supports multiple frequencies. This ensures precise PWM
dimming control while the device remains fully biased. In addition,
when held at logic low, the device to enter a full shutdown “zero”
current mode.
External programming resistors set the minimum and maximum
voltage limits for the acceptable “window of operation” for LED
strings. Any channel which fails to regulate within the window (Open
or Short LED) is detected and flagged on the FAULT logic output
(active low, open−drain).
The device is available in a 16−lead TQFN 4 mm x 4 mm and
TSSOP with exposed pad packages.
Features
• Four LED Channels with Tight Current Matching
• Integrated DC/DC Boost Converter
• Up to 6 W LED Total Output Power
• Up to 92% Efficiency
• Low Dropout LED Channels (500 mV at 175 mA)
• High Frequency PWM Interface (up to 2 kHz)
• Adjustable Short/Open LED Detection
• Programmable LED Channel Current
• Adjustable LED Channel Voltage
• Thermal Shutdown Protection
• 16−lead TQFN 4 x 4 mm and TSSOP Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• LCD Backlight Lighting
• Automotive and General Purpose Lighting
http://onsemi.com
TQFN−16
HV4 SUFFIX
CASE 510AE
PIN CONNECTIONS
MARKING DIAGRAMS
CDAL = CAT4106HV4−GT2
4106Y = CAT4106YP−T2
(Top Views)
Device Package Shipping
ORDERING INFORMATION
CAT4106HV4−GT2
(Note 1)
TQFN−16
(Pb−Free)
2,000/
Tape & Reel
1. NiPdAu Plated Finish (RoHS−compliant)
2. Matte−Tin Plated Finish (RoHS−compliant)
CDAL
1
LED1
GND
FAULT
FB
PGND
LED2
LED3
LED4
RSET
VFMAX
VFMIN
CTRL
VIN
SW
EN/PWM
NC
TSSOP−16
YP SUFFIX
CASE 948AP
1
1
CAT4106YP−T2
(Note 1)
TSSOP−16
(Pb−Free)
2,000/
Tape & Reel
4106Y
TAB
is
GND
VFMAX
VFMIN
CTRL
VIN
LED1
GND
FAULT
PGND
EN/PWM
RSET
NC
SW
FB
LED4
LED3
LED2
TAB
is
GND
1
CAT4106
http://onsemi.com
2
Figure 1. Typical Application Circuit
GND
3 V to 5.5 V
3 V to 24 V
LED2
LED3
LED1
LED4
RSET
EN/PWM
CAT4106
VIN VFMAX
VFMIN
1 mF
C1
SW
R1
PGND
FB
CTRL
R3
R5
R7
R8
LED Fault Detection
(open drain pull−down)
R4
R6
R2
4.7 mF
C2
L
47 mH
D
10 mF/
50 V
C3
OFF... ON... DIM
20 kW
20 kW
FAULT
V
IN
V
L
V
IN
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameters Ratings Units
VIN, RSET, EN/PWM, CTRL, FB, FAULT −0.3 V to 6 V
VFMIN, VFMAX −0.3 V to 6 V
LED1, LED2, LED3, LED4 −0.3 V to 25 V
SW (internally clamped to 40 V) 50 V
Storage Temperature Range −65 to +150
_C
Junction Temperature Range −40 to +150
_C
Lead Temperature 300
_C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter Range Units
VIN 3.0 to 5.5 V
Inductor Drive Voltage 3.0 to 24 V
LED String Forward Voltage per channel up to 36 V
Ambient Temperature Range −40 to +85
_C
I
LED
per LED pin 10 to 175 mA
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
3. Typical application circuit with external components is shown above.
Table 3. RECOMMENDED EN/PWM TIMING
(For 3.0 ≤ VIN ≤ 5.5 V, over full ambient temperature range −40 to +85°C.)
Symbol
Name Conditions Min Typ Max Units
T
LEDSETUP
LED setup time from shutdown 10 40 100
ms
T
LO
EN/PWM low time 0.2 2000
ms
T
HI
EN/PWM high time 100
ms
T
PWRDWN
EN/PWM low time to shutdown delay 8 ms
T
LEDSET
LED current settling time I
LED
= 100 mA 0.2
ms
CAT4106
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3
Figure 2. CAT4106 EN/PWM Timing
EN/PWM
LED CURRENT
DEVICE
QUIESCENT CURRENT
SHUTDOWN
POWERDOWN SHUTDOWN
DIMMING
100% BRIGHTNESS
T
LEDSETUP
T
HI
T
LO
T
PWRDWN
Table 4. ELECTRICAL OPERATING CHARACTERISTICS
VIN = 5 V, VL (inductor drive voltage) = 12 V, T
AMB
= 25°C (over recommended operating conditions unless specified otherwise)
Symbol
Description Conditions Min Typ Max Units
I
Q
VIN Operating Current Switching (I
LED
= 30 mA)
Not Switching (I
LED
= 30 mA)
Switching (I
LED
= 60 mA)
Not Switching (I
LED
= 60 mA)
2.5
2.0
3.4
2.9
3.5
3.0
4.4
3.9
mA
I
SD
VIN input shutdown Current V
EN
= 0 V 1
mA
V
IH
V
IL
R
EN
EN/PWM
Logic High Threshold
Logic Low Threshold
Internal Pull−Down Resistor
Device Enable Level
Disable/PWM Level
0.4
100
0.8
0.7
200
1.3
300
V
V
kW
V
UVLO
Undervoltage lockout (UVLO) VIN pin voltage 2.0 V
T
SD
Thermal Shutdown Threshold 150
_C
T
HYS
Thermal Hysteresis 20
_C
V
RSET
RSET regulation voltage
10 mA < I
RSET
< 2 mA
1.17 1.20 1.23 V
I
LED
/I
RSET
RSET to LED Current gain ratio 30 mA LED current 100
V
DO
LED Channel Dropout Voltage I
LED
= 175 mA 0.5 V
DI
LED
LED Channel Matching 0.5 V < V
LED
< 5 V −5 ±1 +5 %
I
LED−OFF
LED Channel leakage Channel is Off 1
mA
V
VFMAX
O/C Detect voltage threshold 1.15 1.20 1.25 V
V
VFMIN
S/C Detect voltage threshold 1.15 1.20 1.25 V
V
CTRL
I
CTRL
CTRL pin voltage accuracy
CTRL pin maximum load
Offset to Lowest LED output − 0.1
25
0 + 0.1 V
mA
I
FAULT
Pull−down Drive Current
Open Drain Leakage Current
FAULT is Active (0.1 V bias)
FAULT
is Inactive
1 2
1
mA
mA
V
FB
I
FB
FB Pin control voltage
FB pin input leakage current
Normal switching
mode regulation
285 300 315
1
mV
mA
F
SW
I
SWMAX
R
SW
DC
MAX
DC
MIN
I
SWLEAK
OVP
SW
SW Pin
Switching Frequency
Switch Pin Current Limit
Switch Pin On−resistance
Maximum Duty Cycle
Minimum Duty Cycle
Switch Leakage Current
Over Voltage Protection Detect
I
SW
= 500 mA
Prior to Current Limiting
Prior to Pulse−Skipping
V
SW
= 20 V
Enters Low Power mode
0.7
0.8
1.0
1.0
1.0
96
5
40
1.3
5
MHz
A
W
%
%
mA
V
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
P1-P3P4-P6P7-P9P10-P12P13-P15

CAT4106HV4-GT2

Mfr. #:
Buy CAT4106HV4-GT2
Manufacturer:
ON Semiconductor
Description:
LED Lighting Drivers LED DRVR BOOST 4CH/10LED
Lifecycle:
New from this manufacturer.
Delivery:
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