BD9394FP
針對大面板幕的白光LED驅動器(DC/DC型)

BD9394FP是白光LED用高效率驅動器,適用於大型面板液晶驅動器。此IC內建了針對光源(LED串聯連接的陣列)提供適當電壓的DCDC轉換器。BD9394FP中內建了應對異常狀態的幾種保護功能。過電壓保護(OVP: over voltage protection)、過電流檢測(OCP: over current limit protection of DCDC)、短路電路保護(SCP: short circuit protection)、開路保護(open detection of LED string)等。因此,可在更寬的輸出電壓條件及負載條件下使用。

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* 本產品是標準級的產品。
本產品不建議使用的車載設備。

Product Detail

 
料號 | BD9394FP-E2
狀態 | 推薦品
封裝 | HSOP20
單位數量 | 2000
最小包裝數量 | 2000
包裝形式 | Taping
RoHS | Yes

規格:

Topology

Boost

Number of Outputs

4

Vin(Min.)[V]

9.0

Vin(Max.)[V]

35.0

Output Current(Max.)[mA]

150.0

Frequency(Max.)[MHz]

0.15

Dimming

PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

功能:

・4ch LED constant current driver and DC/DC converter
・Maximum LED Current: 150mA
・LED Feedback Voltage: 0.37V (@NADIM=2.62V), so lower heat. Adjustable Feed Back Voltage by following LED Current setting.
・±2% LED current accuracy (NADIM=2.62V, when each LED is set to 100mA)
・Analog current (Linear) dimming at NADIM pin
・LED pin rating 60V
・Individual detection and individual LED OFF for both open and short circuits
・Built-in ISET pin short-circuit protection circuit
・Set Soft-Start time byexternal capacitor.
・FET’s Gate (N pin) is driven by 5.8V swing
・Built-in Vout discharge circuit for shutdown
・Built-in Vout overvoltage protection (OVP) / reduced voltage protection (SCP) circuit
・Adjustable LED Short Protection Voltage by LSP terminal
・HSOP20, HTSSOP-B24 package with high heat radiation efficiency

Design Resources

 

Documents

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs
  • ROHM Automotive Lighting Solutions

Technical Articles

Schematic Design & Verification

  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)