CAT3604V PDF даташит
Спецификация CAT3604V изготовлена «ON Semiconductor» и имеет функцию, называемую «4-Channel LED Driver». |
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Детали детали
Номер произв | CAT3604V |
Описание | 4-Channel LED Driver |
Производители | ON Semiconductor |
логотип |
13 Pages
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CAT3604V
4-Channel LED Driver with
Open/Short LED Detection
Description
The CAT3604V is a high efficiency fractional charge pump that can
drive up to four LEDs with input supply voltages as low as 2.5 V.
An external RSET resistor is used to control the LED channel
brightness while channel diagnostics include automatic detection for
both short and open LED channel conditions, ensuring the CAT3604V
maintains the highest efficiency level in all operating modes.
Each operating mode uses a constant high frequency switching
scheme which allows the use of small form factor external ceramic
capacitors while delivering excellent low noise input supply ripple up
to 5.5 V.
The EN input control supports direct PWM dimming and can
accommodate dimming frequencies in excess of 10 kHz thereby
providing extremely high resolution brightness levels.
The device is available in the 16−pad low profile 0.8 mm thin QFN
(4 mm x 4 mm).
Features
• Charge Pump: 1x, 1.33x, 1.5x, 2x
• Drives up to 4 LEDs at 30 mA Each
• Pin Compatible with Industry Standard ’604
• Open/Short LED Automatic Detection
• Power Efficiency up to 92%
• High Resolution PWM Dimming
• Low Noise Supply Ripple in All Modes
• Soft Start and Current Limiting
• Short Circuit and Thermal Overload Protection
• 16−Pad TQFN Package, 4 mm x 4 mm
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• LCD Display Backlight
• Cellular Phones
• Digital Still Cameras
• Handheld Devices
© Semiconductor Components Industries, LLC, 2014
August, 2014 − Rev. 4
1
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TQFN−16
HV4 SUFFIX
CASE 510AE
PIN CONNECTIONS
1
EN
NC
NC
NC
GND
GND
C2+
C2−
C1−
(4 x 4 mm) (Top View)
MARKING DIAGRAMS
CDAK
AXXX
YMCC
CDAF
AXXX
YMCC
CDAK = CAT3604VHV4−GT2
CDAF = CAT3604VHV4−T2
A = Assembly Location
XXX = Last Three Digits of Assembly Lot Number
Y = Production Year (Last Digit)
M = Production Month (1−9, A, B, C)
CC = Country of Origin (Two Digit)
Note: Two digit code for country of origin:
Thailand = TH
Malaysia = MY
ORDERING INFORMATION
Device
CAT3604VHV4−GT2
(Note 1)
CAT3604VHV4−T2
Package
TQFN−16
(Pb−Free)
TQFN−16
(Pb−Free)
Shipping
2000 /
Tape & Reel
†For information on tape and reel specifications, in-
cluding part orientation and tape sizes, please refer
to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
1. NiPdAu Plated Finish (RoHS−compliant).
For other finishes, please contact factory.
Publication Order Number:
CAT3604V/D
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CAT3604V
1 mF
1 mF
VIN
2.4 V
to
CIN
5.5 V
1 mF
ON OFF
4.02 kΩ
C1+ C1− C2+ C2−
VIN VOUT
CAT3604V
EN
RSET
GND
LED1
LED2
LED3
LED4
VOUT
COUT
1 mF
20 mA
Figure 1. Typical Application Circuit
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
VIN, LEDx, C1±, C2± voltage
6V
VOUT voltage
7V
EN voltage
6V
Storage Temperature Range
−65 to +160
°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
Rating
Unit
VIN
2.5 to 5.5
V
Ambient Temperature Range
−40 to +85
_C
ILED per LED pin
Total Output Current
0 to 25
0 to 100
mA
mA
LED Forward Voltage Range
1.3 to 4.3
V
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.
NOTE: Typical application circuit with external components is shown above.
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CAT3604V
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(over recommended operating conditions unless specified otherwise) VIN = 3.6 V, EN = High, TAMB = 25°C.
Symbol
Name
Conditions
Min
Typ
IQ Quiescent Current
1x mode, no load
1.33x mode, no load
1.5x mode, no load
2x mode, no load
1.0
1.7
2.2
2.4
IQSHDN
ILED−ACC
ILED−DEV
ILED
Shutdown Current
LED Current Accuracy
LED Channel Matching
Programmed LED Current
VRSET
ROUT
RSET Regulated Voltage
Output Resistance (open loop)
FOSC
Charge Pump Frequency
VEN = 0 V
ILEDAVG / ILEDAVG−NOMINAL
(ILED − ILEDAVG) / ILEDAVG
RSET = 34.0 kW
RSET = 5.23 kW
RSET = 2.67 kW
1x mode
1.33x mode, VIN = 3 V
1.5x mode, VIN = 2.7 V
2x mode, VIN = 2.4 V
1.33x and 2x mode
1.5x mode
±2
±1.5
2.4
15
30
0.58 0.6
0.8
5
5
10
0.8 1
1 1.3
ISC_MAX
IIN_MAX
LEDTH
Output short circuit Current Limit
Input Current Limit
1x to 1.33x, 1.33x to 1.5x or 1.5x to 2x
Transition Thresholds at any LED pin
VOUT < 0.5 V
VOUT > 1 V
50
250
130
Max
1
0.62
1.3
1.6
Units
mA
mA
%
%
mA
V
W
MHz
mA
mA
mV
VHYS
1x Mode Transition Hysteresis
400 mV
EN Pin
REN − Internal Pull−down Resistor
VHI − Logic High Level
VLO − Logic Low Level
100
1.3
0.4
kW
V
V
TSD Thermal Shutdown
150 °C
THYS
Thermal Hysteresis
20 °C
VUVLO
Undervoltage lockout (UVLO) threshold
1.6 1.8 2.0
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.
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