HV852K7-G Supertex, HV852K7-G Datasheet

Display Drivers INDUCTORLESS EL LAMP DRIVER

HV852K7-G

Manufacturer Part Number
HV852K7-G
Description
Display Drivers INDUCTORLESS EL LAMP DRIVER
Manufacturer
Supertex
Datasheet

Specifications of HV852K7-G

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HV852K7-G
Manufacturer:
MICROCHIP
Quantity:
4 600
Company:
Part Number:
HV852K7-G
Quantity:
16 500
Features
Applications
Typical Application Circuit
No external components required when using an
external EL clock frequency
EL frequency can be set by an external resistor
Low Noise
DC to AC converter
Drives up to 5.3nF (approx. 1.5in
Output voltage regulation
Enable function
EL Lamp dimming
Cellular phone keypad
Watches
Small handheld wireless devices
MP3 Players
V
DD
+
-
GND = OFF
V
DD
= ON
Inductorless EL Lamp Driver
C
1235 Bordeaux Drive, Sunnyvale, CA 94089
DD
2
lamp) load
EL Lamp frequency set by R
R
EL
High Voltage,
Low Noise,
CLKIN
HV852MG
VDD
REL
EN
General Description
The Supertex HV852 is a high voltage, low noise, inductorless
EL (electroluminescent) lamp driver. It is designed to drive EL
lamps of up to 1.5in
an input voltage range of 2.4 to 5.0V. The HV852 converts a
low voltage DC input to a high voltage AC output across an
EL lamp. It uses a charge pump scheme to boost the input
voltage eliminating the need for an external inductor, diode,
and high voltage capacitor commonly found in conventional
topologies.
The charge pump circuit discharges its energy into an EL lamp
through a high voltage H-bridge. Once the voltage reaches
its regulated limit, it is turned off to conserve power. The EL
lamp is then discharged to ground and the H-bridge changes
state to allow the charge pump to charge the EL lamp in the
opposite direction.
CLKEN
GND
VB
VA
Tel: 408-222-8888
EL
2
, with capacitive values up to 5.3nF over
EL LAMP
www.supertex.com
HV852

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HV852K7-G Summary of contents

Page 1

... DD GND = OFF High Voltage, Low Noise, General Description The Supertex HV852 is a high voltage, low noise, inductorless EL (electroluminescent) lamp driver designed to drive EL lamps 1.5in an input voltage range of 2.4 to 5.0V. The HV852 converts a low voltage DC input to a high voltage AC output across an EL lamp. It uses a charge pump scheme to boost the input ...

Page 2

... Pin Configurations VDD 10-Lead DFN REL 3.00x3.00mm body 0.80mm height (max) EN 0.50mm pitch CLKIN HV852K7-G Product Marking Value -0.5V to 6.5V -25°C to +85°C -65°C to +150°C 300mW Package may or may not include the following marks 1.6W Package may or may not include the following marks ...

Page 3

... V No load See Figure 3.5V 1.5MΩ, Load = 3.3nF+1kΩ µs 1.0in lamp 90% of final value 2 Units Conditions V --- 2.4 to 4.3V 4.3 < V ≤ 5.0V µ 0V 2 µ 2 Using external R-C circuit, see Figure --- ● Tel: 408-222-8888 ● www.supertex.com HV852 = 3. ...

Page 4

... VDD REL GND CLKEN CLKIN HV852MG VDD REL EN GND CLKIN CLKEN C R HV852MG Delay time 1235 Bordeaux Drive, Sunnyvale, CA 94089 MOSFET Full Bridge (V) 154 158 158 158 158 EL Lamp EL Lamp ● Tel: 408-222-8888 ● www.supertex.com HV852 f EL (Hz) 245 ...

Page 5

... CLKEN HV852MG EL Lamp frequency set by an external clock VDD REL GND CLKIN CLKEN HV852MG resistor value. A 1.5MΩ resistor would provide a nominal lamp EL (1.5MΩ) (250Hz 1235 Bordeaux Drive, Sunnyvale, CA 94089 Lamp Lamp R EL ● Tel: 408-222-8888 ● www.supertex.com HV852 resistor. EL ...

Page 6

... MIN 0.70 0.00 Dimension NOM 0.75 0.02 (mm) MAX 0.80 0.05 JEDEC Registration MO-229, Variation WEED-5, Issue C, Aug. 2003. * This dimension is not specified in the JEDEC drawing. Drawings not to scale. Supertex Doc.#: DSPD-10DFNK73X3P050, Version D041309. ● E θ Seating Plane A3 L1 Note 0.18 2 ...

Page 7

... Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship ...

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