Driver IC. CN5710 Datasheet

CN5710 IC. Datasheet pdf. Equivalent

CN5710 Datasheet
Recommendation CN5710 Datasheet
Part CN5710
Description 1A High Brightness LED Driver IC
Feature CN5710; CONSONANCE 1A High Brightness LED Driver IC CN5710 General Description The CN5710 is a current re.
Manufacture CONSONANCE
Datasheet
Download CN5710 Datasheet




CONSONANCE CN5710
CONSONANCE
1A High Brightness LED Driver IC
CN5710
General Description
The CN5710 is a current regulation integrated circuit
operating from an input voltage of 2.8V to 6V, the
constant output current can be set up to 1A with an
external resistor. The CN5710 is ideal for driving
LED. The on-chip power MOSFET and current
sense block greatly reduce the number of external
component count. The CN5710 adopts the
temperature regulation instead of temperature
protection function, the temperature regulation can
make the LED being turned on continuously in case
of high ambient temperature or high voltage drop.
Other features include chip enable,etc.
CN5710 is available in 5pin SOT89 package.
Features
Operating Voltage Range: 2.8V to 6V
On-chip Power MOSFET
Low Dropout Voltage: 0.25V @ 800mA
LED Current up to 1A
Output Current Accuracy: ± 5%
Chip Temperature Regulation
Over LED Current Protection
Operating Temperature Range:
40 to 85
Available in SOP8 Package
Pb-free, Rohs Compliant, Halogen Free
Applications
Flashlight
High-brightness LED driver
LED headlights
Emergency lights and lighting
Pin Assignment
CE 1
GND 2
5 LED
CN5710
ISET 3
4 VCC
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CONSONANCE CN5710
CONSONANCE
Typical Application Circuit
Figure 1 Typical Application Circuit
Ordering Information
Part No. Package
CN5710 SOT89-5
Shipping
Tape and reel, 1000/Reel
Operating Temperature
40to 85
Block Diagram
CE
ISET
Sc hmitt
-
+
VCC
LED
Vref
Current Mirror
GND
Figure 2 Functional Block Diagram
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CONSONANCE CN5710
CONSONANCE
Pin Description
Pin No.
Symbol
1 CE
2 GND
3 ISET
4 VCC
5 LED
6 Exposed Pad
Description
Chip Enable Input. A high input will put the device in the normal operating
mode. Pulling the CE pin to low level will put the CN5710 into disable mode.
The CE pin can be driven by TTL or CMOS logic level.
The Negative Terminal of Power Supply.
LED Current Setting Pin. LED pin current is set by a resistor RISET which is
connected between ISET pin and GND, the current is calculated by:
ILED = 1800VRISET
Where,
ILED is LED pin current and is in ampere (A)
RISET is the resistance from ISET pin to GND in ohms.
RISET’s maximum value is 30K ohm.
The Positive Terminal of Power Supply. The internal circuit is powered by
VCC.
The Anode of LED. LED’s anode is connected to this pin, and LED current
flows out of this pin.
Soldered to GND.
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (With respect to GND)
VCC..............…...…………....-0.3V to +6.5V
Other terminal voltage………....-0.3V to VCC
Maximum Junction Temperature.......... 150°C
Thermal Resistanc(Juction to Case)….…..60°C/W
Operating Temperature.…..………...-40 to +85°C
Storage Temperature.......……........-65 to +150°C
Lead Temperature (soldering, 10s) ...........+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect device reliability.
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