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LM2796 Folha de dados(PDF) 2 Page - Texas Instruments

Nome de Peças LM2796
Descrição Electrónicos  LM2796 Dual-Display White LED Driver with 3/2x Switched Capacitor Boost
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

LM2796 Folha de dados(HTML) 2 Page - Texas Instruments

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LM2796
SNVS273A – MAY 2004 – REVISED MAY 2013
www.ti.com
Connection Diagram
Figure 1. 18-Bump Thin DSBGA Package, Large Bump
Package Number YZR0018
PIN DESCRIPTION
Pin #s
Pin Names
Pin Descriptions
C1
VIN
Input voltage. Input range: 2.7V to 5.5V.
D2
GND
Ground
A3
POUT
Charge pump output. Approximately 1.5×VIN
A1, B2, A5, E1
C1+, C1-, C2+, C2-
Flying capacitor connections.
A7
EN
Enable pin. Logic input. High = normal operation, Low = shutdown (charge pump and all
current sources OFF).
D6, E5, D4, E3
D1A, D2A, D3A, D4A
LED Outputs - Group A
C5, B4, C3
D1B, D2B, D3B
LED Outputs - Group B
B6
EN-A
Enable for Group-A LEDs (current outputs). Logic input.
High = Group-A LEDs ON. Low = Group A LEDs OFF.
Pulsing this pin with a PWM signal (100Hz-1kHz) can be used to dim LEDs.
E7
EN-B
Enable for Group-B LEDs (current outputs). Logic input.
High = Group-B LEDs ON. Low = Group B LEDs OFF.
Pulsing this pin with a PWM signal (100Hz-1kHz) can be used to dim LEDs.
C7
ISET
Placing a resistor (RSET) between this pin and GND sets the LED current for all LEDs. LED
Current = 100 × (1.25V ÷ RSET).
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
2
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