HV857X Ver la hoja de datos (PDF) - Supertex Inc
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Fabricante
HV857X Datasheet PDF : 14 Pages
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HV857
Electrical Characteristics
DC Characteristics (Over recommended operating conditions unless otherwise specified, TA=25°C)
Symbol
Parameter
Min Typ Max Units
Conditions
RDS(on)
VCs
VA – VB
IDDQ
IDD
IIN
VCs
fEL
fSW
D
On-resistance of switching transistor
Max. output regulation voltage
Peak to Peak output voltage
Quiescent VDD supply current
Input current going into the VDD pin
Input current including inductor current
Output voltage on VCs
EL lamp frequency
Switching transistor frequency
Switching transistor duty cycle
6.0
Ω I=100mA
85
95 105
170 190 210
150
150
20
25
V
VDD=1.8V to 5.0V
V
VDD=1.8V to 5.0V
nA
RSW-OSC=Low
µA VDD=1.8V to 5.0V. See Figure 1.
mA See Figure 1.*
84
V See Figure 1.
205 240 275
Hz See Figure 1.
80
KHz See Figure 1.
88
% See Figure 1.
* The inductor used is a 220µH Murata inductor, max DC resistance of 8.4Ω, part # LQH32CN221K21.
Recommended Operating Conditions
Symbol
Parameter
Min Typ
VDD
Supply voltage
1.8
fEL
Output drive frequency
TA
Operating temperature
-40
Max Units
5.0
V
1
KHz
85
°C
Conditions
Enable/Disable Function Table
Symbol
Parameter
EN-L
Logic input low voltage
EN-H
Logic input high voltage
Min Typ
0
VDD-0.2
Max
0.2
VDD
Units
V
V
Conditions
VDD=1.8V to 5.0V
VDD=1.8V to 5.0V
Absolute Maximum Ratings*
Supply Voltage, VDD
-0.5V to +6.5V
Operating Temperature Range
-40° to +85°C
Storage Temperature Range
-65°C to +150°C
MSOP-8 Power Dissipation
300mW
Output voltage, VCS
-0.5 to +120V
Note:
*Absolute Maximum Ratings are those values beyond which damage to the device
may occur. Functional operation under these conditions is not implied. Continu-
ous operation of the device at the absolute rating level may affect device reliability.
All voltages are referenced to device ground.
Ordering Information
Package Options
Device
MSOP-8
HV857
HV857MG*
* Product supplied on 2500 piece carrier tape reels.
Die
HV857X
Pin Configuration
VDD 1
RSW 2
REL 3
Gnd 4
MSOP-8
Top View
8 VA
7 VB
6 CS
5 LX
2
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