Datasheet > HV850

HV850

更新时间： 2023-12-06 20:09:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
7页	592K
描述
HV850 is a high voltage electroluminescent (EL) Lamp Driver IC. It is designed to drive EL lamps o

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HV850 数据手册

HV850

Logic Inputs (Unless otherwise speciﬁed V_DD= 3.5V, T_A= 25°C)

Sym

V_IL

V_IH

I_IL

Parameter

Min

Typ Max Units Conditions

Input logic low voltage

Input logic high voltage

Input logic low current

Input logic high current

2.0

0.5

V_DD

1.0

---

µA

I_IH

Enable input rise time

(for delay turn on)

EN_RISE

0.01

Using external R-C circuit, see Figure 2.

---

Enable input fall time

(for delay turn off)

EN_FALL

C_IN

10µ

5.0

Logic input capacitance

Block Diagram

V_DD

VDD

Capacitor

Charge

Pump Circuit

V_SENSE

High

Voltage

Level

Trans-

lators

Feedback

V_DD

CLKIN

Oscillator

CLKEN

REL

MOSFET

Full Bridge

GND

Figure 1: Typical Application Circuit (without Enable function)

VDD

REL

V_DD

Lamp

R_EL

HV850

C_DD

GND

CLKEN

CLKIN

R_EL

V_DD

I_DD

Peak V_A

f_EL

Load

(MΩ)

(V)

(mA)

(V)

(Hz)

3.0

3.5

4.0

8.9

3.3nF + 1.0kΩ

1.5

10.2

10.4

294

Note: C_DD= 2.2µF, 6.3V low ESR

Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com

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