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AL3065 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER - Diodes

भाग संख्या AL3065
समारोह FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER
मैन्युफैक्चरर्स Diodes 
लोगो Diodes लोगो 
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AL3065 pdf
AL3065
Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
CH4
ISET
OVP
RT
EN
CS
OUT
VCC
VIN
ADIM
COMP
DIM
CH1
CH2
GND
CH3
Function
LED current sink 4. Leave the pin open directly if not used.
LED current set pin. The corresponding maximum current of all 4 strings is set through connecting a
resister from this pin to GND.
Overvoltage protection pin. When the OVP pin voltage exceeds 2.0V, the OVP is triggered and the power
switch is turned off. When the OVP pin voltage drops below Hysteresis voltage, the OVP is released and
the power switch will resume normal operation.
Frequency control pin.
ON/OFF control pin. Forcing this pin voltage above 2.4V enables the IC while below 0.5V shuts down the
IC. When the IC is in shutdown mode, all functions are disabled to reduce the supply current below 3µA.
Power switch current sense input.
Boost converter power switch gate output. This pin outputs high voltage (5V) to drive the external N-
MOSFET.
5V linear regulator output pin. This pin should be bypassed to GND with a ceramic capacitor.
Supply input pin. A capacitor (typical 10µF) should be connected between the VIN and GND to keep the
DC input voltage constant.
Analog dimming pin, used in conjunction with DIM. When a DC voltage between 0V and 1.5V is applied
to this pin analog dimming is achieved if DIM is tied HIGH. When a capacitor is connected between this
pin and GND, the PWM signal applied to the DIM pin is filtered and modulates the output current. When
this pin is connected to a HIGH level, direct PWM dimming is achieved.
Soft-start and control loop compensation.
PWM dimming control pin, used in conjunction with ADIM. Apply the PWM signal to this pin. Tie this pin
to logic HIGH level, for analog dimming.
LED current sink 1. Leave the pin open directly if not used.
LED current sink 2. Leave the pin open directly if not used.
Ground
LED current sink 3. Leave the pin open directly if not used.
AL3065
Document number: DS37677 Rev. 3 - 2
2 of 14
www.diodes.com
March 2017
© Diodes Incorporated

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