HV839MG Supertex, HV839MG Datasheet - Page 4

• Manufacturer Part Number: HV839MG
• Description: Display Drivers Dual EL Lamp Drvr
• Manufacturer: Supertex

Specifications of HV839MG

• 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
Function Table
Fig. 1: Test Circuit
HV839MG-G or
V
0 = OFF
HV839K6-G
EN
V
= ON
V
Device
IN
DD
+
-
+
-
C1
0
0
1
1
Supertex inc.
V
0 = OFF
EN
= ON
RSW-Osc
Both EL1 and EL2 ON
GND
4.7µF
0.1µF
C1
C2
1. or any (equivalent or better) > 90V, fast recovery diode
2. Murata LQH32CN221K21
3. The bigger sized lamp should be tied to EL1 and the smaller
C2
Lamp
0
1
0
1
EL1
sized lamp to EL2 terminals (pins 10 and 9 respectively)
Control Logic
& Switch-Osc
1235 Bordeaux Drive, Sunnyvale, CA 94089
VDD
220k
Disable
1
2
3
4
5
Logic Control &
Divide by 128
V
EL1
Hi Z
Hi Z
ON
ON
C1
VDD
RSW-Osc
C2
GND
IN
3.0V
= V
HV839
+
-
DD
V
LX
REF
4
COM
EL1
EL2
CS
LX
V
29.6mA
45.0mA
SENSE
10
9
8
7
6
I
IN
EL2
Hi Z
Hi Z
ON
ON
Drivers
Output
220µH
Tel: [phone]
IN914
2
85.8
76.2
1
V
CS
EL Lamp 1 (1.3 in
V
V
CS
CS
COM
Hi Z
ON
ON
ON
EL1
EL2
COM
3.3nF,
100V
CS
www.supertex.com
EL Lamp 2 (0.9in
500Hz
f
EL
2
)
3
Brightness
13.68ft-lm
12.66ft-lm
OFF
ON
ON
ON
2
IC
HV839
)
3