低Duty LCD節段驅動器 - BU97981MUV

ROHM的多機能節段驅動器最適合使用在大約100節段到200節段的液晶節段的驅動。機種內建標示用RAM、為可減輕微控制器負擔、亦可大幅減少功耗電流及周邊零件數量的節能設計。並備有透過LED驅動器、PWM調光功能、GPO等的付加功能也完備、可在單一Rank 上進行面板設計。

* 本產品是標準級的產品。本產品不建議使用的車載設備。
料號 | BU97981MUV-E2
狀態 | 推薦品
封裝 | VQFN56AV8080
單位數量 | 1000
最小包裝數量 | 1000
包裝形式 | Taping
RoHS | Yes

規格:

Grade

Consumer

Segment Element

168

Duty

1/4, 1/3, Static

Bias

1/3

Elements of MUX 1:1

42

Elements of MUX 1:3

126

Elements of MUX 1:4

168

Interface [line serial]

3wire

Interface Voltage (Min.)[V]

1.8

Interface Voltage (Max.)[V]

3.6

Power Supply for LCD (Min.)[V]

3.3

Power Supply for LCD (Max.)[V]

5.5

Max GPO [port]

27

LED Driver [port]

3

LCD Driving Waveform

Line/Frame

Operating Temperature (Min.)[°C]

-30

Operating Temperature (Max.)[°C]

75

功能:

  • 1/4, 1/3duty or Static setting selectable
    1/4duty driving: Max 168 segments
    1/3duty driving: Max 126 segments
    Static driving: Max 42 segments
  • 1/3 bias setting
  • Power supply for Interface: 1.8V to 3.6V
  • Power supply for LCD: 3.3V to 5.5V
  • Integrated LCD voltage driving circuit
  • Integrated oscillation circuit for LCD frame frequency
  • Line or Frame inversion driving selectable
  • Integrated 27ch general purpose outputs (SEG selectable)
  • Integrated 3ch LED driver able to support 4096 step PWM illumination
  • Support individual blink function with dedicated blink RAM integrated
  • Support 3 wire serial interface
  • Support INHb terminal to control Display ON/OFF
  • Integrated voltage detected type power on reset circuit
  • No external components required
  • Low power consumption design
  • Small QFN package