2

HV857

Device

Package Options

8-Lead DFN (K7)

8-Lead MSOP (MG)

HV857

HV857K7-G

HV857MG-G

-G indicates package is RoHS compliant (‘Green’)

Absolute Maximum Ratings

Parameter

Value

Supply Voltage, V

DD

-0.5V to 6.5V

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C

DFN-8 Power Dissipation

1.6W

MSOP-8 Power Dissipation

300mW

Output voltage, V

CS

-0.5 to +120V

Absolute Maximum Ratings are those values beyond which damage to the

device may occur. Functional operation under these conditions is not implied.

Continuous operation of the device at the absolute rating level may affect

device reliability. All voltages are referenced to device ground.

Pin Configuration

1

2

3

4

8

7

6

5

HV857MG

MSOP-8

Pads are at the bottom of the package

Exposed center pad is at ground potential

Top View

DFN-8

1

2

3

4

8

7

6

5

HV857K7

VDD

RSW-Osc

VB

REL-Osc

GND

VA

LX

CS

VDD

RSW-Osc

REL-Osc

GND

VB

VA

LX

CS

Thermal Resistance

Package

θ

ja

DFN-8

MSOP-8

Mounted on FR4 board, 25mm x 25mm x 1.57mm

Symbol

Parameter

Min

Typ

Max

Units

Conditions

V

DD

Supply voltage

1.8

-

5.0

V

---

f

EL

Operating drive frequency

-

-

1

kHz

---

T

A

Operating temperature

-40

-

+85

---

Recommended Operating Conditions

Symbol

Parameter

Min

Typ

Max

Units

Conditions

EN-L

Logic input low voltage

0

-

0.2

V

V

EN-H

Logic input high voltage

V

-

V

DD

VV

Enable/Disable Function Table

Ordering Information

Symbol

Parameter

Min

Typ

Max

Units

Conditions

R

DS(ON)

On-resistance of switching transistor

-

-

6.0

Ω

I = 100mA

V

CS

Max. output regulation voltage

85

95

105

V

V

V

Peak to Peak output voltage

170

190

210

V

V

I

DDQ

Quiescent V

-

-

150

nA

R

Electrical Characteristics