Datasheet Low Duty LCD Segment Driver for Automotive Application BU91600xxx-M Series MAX 148 Segments (37SEG x 4COM) General Description The BU91600FV-M and BU91600FUV-M are a 1/4, 1/3, 1/2duty or Static general-purpose LCD driver that can be used for automotive applications. BU91600FV-M can drive up to 116 LCD Segments and BU91600FUV-M can drive up to 148 LCD Segments. This product can support VA LCD displays, which has better optical performance with higher LCD voltage driving and higher frame frequency driving. It can support operating temperature of up to +105C and is qualified for AEC-Q100 Grade2, as required for automotive applications. It can control up to 16 general-purpose outputs / 16 PWM output ports for LED backlighting and LED button illumination realizing less flicker by various frequency setting function. It can also support a key scan function that detects a maximum of 20 key inputs to reduce PCB wiring and to minimize microcontroller size and cost. It can support LCD contrast adjustment by its EVR function and TTL compatible input interface is also available, these are well-suited for wide-voltage range of MCUs. Features Key Specifications (Note) AEC-Q100 Qualified Supply Voltage Range: +2.7V to +6.0V 1/4, 1/3, 1/2duty or Static setting selectable Operating Temperature Range: -40C to +105C BU91600FV-M Max Segments: 1/4duty: Max 116 segments, BU91600FV-M 116 Segments 1/3duty: Max 87 segments BU91600FUV-M 148 Segments 1/2duty: Max 58 segments, Display Duty Static, 1/2, 1/3, 1/4 Selectable Static: Max 29 segments Bias: 1/2, 1/3 Selectable BU91600FUV-M Interface: 3wire Serial Interface 1/4duty: Max 148 segments, 1/3duty: Max 111 segments Special Characteristics 1/2duty: Max 74 segments, Electrostatic Discharge Voltage(HBM): 2000V Static: Max 37 segments Latch-up Current: 100mA 1/3 or 1/2 bias setting selectable Support wide range of operation voltage from 2.7V to Applications 6.0V, which can support TN LCD and VA LCD display. Instrument Clusters Integrated LCD voltage driving circuit Climate Controls Integrated oscillation circuit for LCD frame frequency Car Audios Line or Frame inversion driving selectable Car Radios Max 16ch external PWM outputs Metering (SEG outputs/general purpose outputs selectable) White Goods Max 6ch internal PWM outputs Healthcare Products (SEG outputs/general purpose outputs/external PWM Battery operated products outputs selectable) etc. Support 256 step PWM function to realize backlight/ button LED illumination Package Support LCD frame frequency from 50Hz to 685Hz, W (Typ) x D (Typ) x H (Max) total 128setting. Support PWM frequency from 146Hz to 2.34KHz, total 16setting Support external PWM input Support 3 wire serial interface + KEYOUT Support TTL level input to connect 3.3V MCU directly Circuit Support Max 20 key input detection (SEG selectable) Integrated EVR function to adjust LCD contrast SSOP-B40 Integrated voltage detected type power on reset TSSOP-C48V 13.60mm x 7.80mm x 2.00mm 12.50mm x 8.10mm x 1.00mm No external components required Low power consumption design (Note) Grade 2 Product structure : Silicon monolithic integrated circuit This product is not designed protection against radioactive rays. www.rohm.com TSZ02201-0P4P0D301300-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/65 TSZ22111 14 001 2.Aug.2019 Rev.003 Datasheet BU91600xxx-M Series MAX 148 Segments (37SEG x 4COM) Typical Application Circuit BU91600FV-M BU91600FUV-M (Note) Insert capacitors between VDD and VSS C > 0.1F. Figure 1. Typical Application Circuit www.rohm.com TSZ02201-0P4P0D301300-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/65 TSZ22111 15 001 2.Aug.2019 Rev.003