HV831MG Supertex, HV831MG Datasheet - Page 4

• Manufacturer Part Number: HV831MG
• Description: Display Drivers Hi V Low Noise
• Manufacturer: Supertex

Specifications of HV831MG

• Driver Type: EL Lamp Drivers
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MSOP-10
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional Block Diagram
Figure 1: Test Circuit
HV831MG
Device
V
0 = OFF
DD
V
V
IN
DD
= ON
Supertex inc.
RSW-Osc
+
-
+
-
GND
VDD
V
0 = OFF
DD
C2
C1
Both EL1 and EL2 ON
= ON
Lamp
0.1µF
4.7µF
EL1
Control Logic
1. or any (equivalent or better) > 90V, fast recovery diode.
2. Murata LQH32CN561K21.
3. The bigger sized lamp should be tied to EL1 and the smaller
& Switch-Osc
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
sized lamp to EL2 terminals (pins 10 and 9 respectively).
470 kΩ
Disable
Logic Control &
Divide by 128
1
2
3
4
5
C1
VDD
RSW-Osc
C2
GND
3.0V
V
DD
HV831
+
-
V
REF
COM
EL1
EL2
CS
LX
4
V
10
560µH
6
SENSE
9
8
7
17.3mA
26.5mA
I
DD
2
~
●
Drivers
Output
IN914
Tel: [phone]
EL Lamp 1 (1.3in
1
74.8V
67.8V
V
CS
Vcs
Vcs
3.3 nF, 200V
EL Lamp 2 (0.93in
●
www.supertex.com
2
244Hz
)
3
EL1
EL2
COM
LX
CS
f
EL
2
)
3
Brightness
5.9ft-lm
5.5ft-lm
HV831