Diodes Incorporated — Analog and discrete power solutions
SO 16

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AL3065A (NRND)

NRND = Not Recommended for New Design

Boost Controller With 4-Channel High Percision Current Source

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Description

The AL3065A is a high level of integration boost controller with 4-channel for WLED backlight applications. It operates over a wide input voltage ranged from 4.5V to 33V.

Feature(s)

  • Input Voltage Range: 4.5V to 33V
  • Four High-Precision Current Sources
    • Current Matching ±0.5% (typical)
    • LED String Current up to 250mA per Channel, 400mA Pulse Current
  • Low Ripple for Low BOM Cost
  • 4KV HBM ESD Class
  • High Voltage Pins CS and OVP for Safety Test
  • Supports Direct PWM Dimming, PWM to Analog Dimming and DC to Analog Dimming Control
  • Minimum PWM Dimming Duty Cycle can be 1/10,000 at 100Hz Dimming Frequency
  • Built-in Below Comprehensive Protections
    • Over-Current Protection (OCP)
    • Over-Voltage Protection (OVP)
    • Over-Temperature Protection (OTP)
    • Under-Voltage Lock Out (UVLO)
    • LED Open/Short Protection
    • Schottky Diode/Inductor Short-Circuit Protection
    • VOUT Short/Schottky Diode Open Protection

Application(s)

  • LCD Monitor
  • LCD Display Module
  • LCD TV

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Dimming DC to Analog, PWM
Efficiency (%) N/A
Function Boost Controller with 4- Channel Current Sink
MaximumInput Voltage (V) 33
Maximum Output Current per Channel 400
Maximum Output Voltage (V) 60
MinimumInput Voltage (V) 4.5
Number of Regulated Output Channels 4
OperatingTemperatureRange  (°C) -40 to 105
OVP Yes
AEC Qualified No
Quiescent Current (µA) 3
Soft Start Yes
Standby Quiescent Current (µA) N/A
SW RDS(ON) External MOSFET
Switching Frequency (MHz) 1000
Typical Overcurrent Protection Current 55
VFB N/A

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TN1.pdf