2

Absolute Maximum Ratings

Ordering Information

-G indicates the package is RoHS compliant - “Green”

HV856

Device

Package Option

10-Lead DFN

HV856

HV856K7-G

Parameter

Value

VDD

-0.5 to +7V

SDI, SDK

-0.5 to +7V

I

SW

0.7A peak

V

CS

0.5 to +120V

Power dissipation

1.6W

Storage temperature

Operating temperature

Recommended Operating Conditions

Symbol Parameter

Min

Typ

Max

Unit

Conditions

V

DD

Supply voltage

1.8

-

6.5

V

---

I

SW(pk)

Peak switch current

-

-

0.4

A

---

T

A

Operating temperature

-40

-

85

---

Symbol Parameter

Min

Typ

Max

Unit

Conditions

R

SW

ON resistance of switching

transistor

-4

6

Ω

V

V

CS

Output voltage

95

105

115

V

S1...S9 = 0, V

V

LAMP

Differential lamp voltage

190

210

230

V

V

I

DD

V

0.01

0.15

0.25

mA

V

I

CS

V

10

50

100

μA

V

I

DDQ

V

disabled

-

100

150

nA

S1...S9 = 0, SCK and SDI can be tied

to V

f

SW

Inductor switching frequency

108.8

128

147.2

kHz

See Fig.1

f

EL

Lamp frequency

425

500

575

Hz

For all codes except code* = 000

V

LOW

Logic pin input Low level

-0.5

0

0.2V

DD

V-

V

HIGH

Logic pin input High level

0.8V

DD

V

DD

V

V

-

I

LOGIC

Logic pin input current

-0.1

0

0.1

μA

0 < V

I

IN

Inductor current

-

60

70

mA

See Fig.1 V

DD

= V

10-bit SDI serial code = 1111111111

V

CS

Output voltage

-

94.3

-

V

f

EL

Lamp frequency

-

500

-

Hz

HV856 Pin Configuration

EL3

2

3

4

5

10-Lead DFN

(top view)

CS

COM

1

EL1

EL2

HV856K7

LX

GND

SDI

SCK

VDD

7

8

9

10

6

Note: The pads are at the bottom of the package. The center heat slug is

at ground potential.