HV835K7-G

更新时间： 2024-11-18 03:04:07

品牌	Logo	应用领域
超科 - SUPERTEX		显示驱动器驱动程序和接口接口集成电路光电二极管
页数	文件大小	规格书
6页	239K
描述
Low Noise Dual EL Lamp Driver

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技术参数
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HV835K7-G 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	HVSON,
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.49	Is Samacsys：	N
数据输入模式：	SERIAL	接口集成电路类型：	EL DISPLAY DRIVER
JESD-30 代码：	S-PDSO-N8	JESD-609代码：	e3
长度：	3 mm	复用显示功能：	NO
功能数量：	1	区段数：	2
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	0.85 mm
最大供电电压：	5.8 V	最小供电电压：	2 V
标称供电电压：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3 mm	最小 fmax：	0.23 MHz
Base Number Matches：	1

HV835K7-G 数据手册

Supertex inc.

HV835

Initial Release

Low Noise Dual EL Lamp Driver

Features

► Low audible noise

General Description

The Supertex HV835 is a high voltage driver designed for driving

two EL lamps with a combined area of 3.5 square inches. The

input supply voltage range is from 2.0V to 5.8V. The device is

designed to reduce the amount of audible noise emitted by the

lamp. This device uses a single inductor and a minimum num-

ber of passive components to drive two EL lamps. The nominal

regulated output voltage of 80V is applied to the EL lamps.

The two EL lamps can be turned ON and OFF by the two logic

input control pins, C₁and C₂. The device is disabled when both

C₁and C₂(pins 1 and 4) are at logic low.

► Independent input control for lamp selection

► 160V_PPoutput voltage

► Split supply capability

► Patented output timing

► One miniature inductor to power both lamps

► Low shutdown current

► Wide input voltage range 2.0V to 5.8V

► Output voltage regulation

► No SCR output

► Available in MLP/DFN-10 package

The HV835 has an internal oscillator, a switching MOSFET, and

two high voltage EL lamp drivers. Each driver has its own half

bridge common output (COM1 and COM2) connected to a single

pin called COM which minimizes the DC offset seen by the EL

lamp.An external resistor connected between the R_SW-OSCpin and

the voltage supply pin, V_DD, sets the frequency for the switching

MOSFET. The EL lamp driver frequency is set by dividing the

MOSFET switching frequency by 512. An external inductor is

connected between the L_Xand the V_DDpins. Depending on the EL

lamp size, a 1.0 to 10.0nF, 100V capacitor is connected between

C and Ground. The switching MOSFET charges the external

in^Sductor and discharges it into the capacitor at C . The voltage

at C_Sincreases. Once the voltage at C reaches a^Snominal value

of 80V, the switching MOSFET is turne^Sd OFF to conserve power.

Applications

► Dual display cellular phones

► Keypad and LCD backlighting

► Portable instrumentation

► Dual segment lamps

► Handheld wireless communication devices

Typical Application Circuit

3.3MΩ

1.0µF

EL Lamp 1

1.5V

3.3MΩ

1.5V

C₁

EL₁

EL₂

1.0µF

V_DD

EL Lamp 2

845kΩ

C_DD

0.1µF

Com

R_SW-OSC

V_DD

C_S

L_X

C₂

GND

HV835K7-G

L_X

330µH

C_IN

4.7µF

C_S

3.3nF, 100V

V_IN

Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: (408) 222-8888 FAX: (408) 222-4895 www.supertex.com

12 3 4 5 6

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与HV835K7-G相关器件

型号	品牌	获取价格	描述	数据表
HV839	SUPERTEX	获取价格	High Voltage Dual EL Lamp Driver
HV839K6-G	SUPERTEX	获取价格	High Voltage Dual EL Lamp Driver
HV839MG	SUPERTEX	获取价格	EL Driver, 2-Segment, PDSO10, MSOP-10
HV839MG-G	SUPERTEX	获取价格	High Voltage Dual EL Lamp Driver
HV839X	SUPERTEX	获取价格	EL Driver, 2-Segment, DIE
HV83SM-12	SPECTRUM	获取价格	Voltage Controlled Oscillator
HV83SM-22	SPECTRUM	获取价格	Voltage Controlled Oscillator
HV83T-1	SPECTRUM	获取价格	Voltage Controlled Oscillator
HV83T-2	SPECTRUM	获取价格	Voltage Controlled Oscillator
HV8408DJ	ETC	获取价格	Interface IC

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