HV850MG 查看數據表（PDF） - Supertex Inc
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HV850MG Datasheet PDF : 6 Pages
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HV850
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Pin Description
Pin # Pad
Description
1
VDD
Input supply voltage pin.
2
REL
An external resistor to VDD will set the EL lamp frequency.
3
EN
Enable input pin. Logic high will turn the device on. An external R-C circuit can be added for a
delayed turn off.
Logic input pin. An external logic clock applied to this pad can be used to set the EL lamp
4
Clk-in frequency (see Figure 3). This is useful for applications requiring the EL lamp to be
synchronized to a system clock. Connect to ground when no in use.
5
Clk-en
Logic input pin. Logic high will cause the EL lamp frequency to be set by the Clk-in input. Logic
low will cause the EL lamp frequency to be set by the external Rel resistor.
6
Gnd
IC ground pin.
7
VB
EL lamp driver output pin. The EL lamp is connected across VA and VB terminals.
8
VA
EL lamp driver output pin. The EL lamp is connected across VA and VB terminals.
Figure 1: Typical Applications
VDD=ON
GND=OFF
+
VDD
Rel
VA
VDD
Cdd
REL
VB
EN
GND
-
Clk-in Clk-en
HV850MG
Note: Cdd=2.2µF, 6.3V low ESR
Load
REL
3.3nF+1KΩ 1.5MΩ
VDD
3.0V
3.5V
4.0V
IDD
8.9mA
10.2mA
10.4mA
Peak VA
53V
61V
66V
Additional Examples
Lamp Size REL
1.0in2
1.65MΩ
0.5in2
2.0MΩ
1.0in2
3.3MΩ
0.5in2
3.3MΩ
1.0in2
4.7MΩ
VDD
3.0V
3.5V
4.0V
3.0V
3.5V
4.0V
3.0V
3.5V
4.0V
3.0V
3.5V
4.0V
3.0V
3.5V
4.0V
IDD
8.4mA
9.4mA
9.9mA
5.5mA
5.3mA
4.9mA
5.6mA
5.4mA
5.0mA
4.6mA
4.1mA
3.8mA
4.8mA
4.4mA
5.0mA
Peak VA
53V
62V
66V
62V
68V
68V
62V
67V
68V
64V
68V
68V
64V
68V
68V
EL
Lamp
fEL
294Hz
fEL
250Hz
210Hz
128Hz
128Hz
89Hz
Brightness
7.31cd/m2
10.35cd/m2
12.62cd/m2
11.54cd/m2
14.33cd/m2
14.90cd/m2
8.55cd/m2
10.29cd/m2
10.94cd/m2
8.25cd/m2
9.62cd/m2
9.95cd/m2
6.02cd/m2
7.50cd/m2
10.94cd/m2
Supertex, Inc.
4
1/21/04
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