SGS Thomson Microelectronics L6385D, L6385 Datasheet

HIGHVOLTAGERAIL UP TO 600 V
dV/dt IMMUNITY +- 50 V/nsec IN FULL TEM-

PERATURERANGE
DRIVER CURRENTCAPABILITY:

400 mASOURCE,
650 mASINK

SWITCHING TIMES 50/30 nsec RISE/FALL
WITH 1nF LOAD

CMOS/TTL SCHMITT TRIGGER INPUTS
WITH HYSTERESISANDPULL DOWN

UNDER VOLTAGE LOCK OUT ON LOWER
AND UPPERDRIVING SECTION

INTERNALBOOTSTRAPDIODE
OUTPUTSIN PHASEWITH INPUTS

DESCRIPTION

The L6385 is an high-voltage device, manufac­tured with theBCD”OFF-LINE” technology.It has
a Driver structure that enables to drive inde-

pendent referenced N Channel Power MOS or
IGBT. The Upper (Floating) Section is enabled to
work with voltage Rail up to 600V. The Logic In­puts are CMOS/TTL compatible for ease of inter­facing with controlling devices.

June 1999



LOGIC

UV

DETECTION

LEVEL

SHIFTER

BOOTSTRAP DRIVER

R
R
S

V

CC

LVG

DRIVER

V

CC

8

7

6

5

4

HIN

LIN

HVG

DRIVER

HVG

H.V.

TO LOAD

OUT

LVG

GND

D97IN514B

Vboot

3

2

1

Cboot

UV

DETECTION

BLOCKDIAGRAM

SO8 Minidip

ORDERING NUMBERS:

L6385D L6385

L6385

HIGH-VOLTAGE HIGH AND LOW SIDE DRIVER

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THERMAL DATA

Symbol Parameter SO8 Minidip Unit

R

th j-amb

Thermal ResistanceJunction to Ambient 150 100 °C/W

PIN DESCRIPTION

N. Name Type Function

1 LIN I Lower Driver Logic Input
2 HIN I UpperDriver Logic Input
3 Vcc I Low Voltage Power Supply
4 GND Ground
5 LVG (*) O Low Side Driver Output
6 VOUT O Upper Driver Floating Reference
7 HVG (*) O HighSide Driver Output
8 Vboot BootstrapSupply Voltage

(*) The circuit guarantees 0.3V maximum on the pin (@ I

sink

= 10mA). This allows to omit the ”bleeder”resistor connected between the gate

and thesource of the external MOSFET normally used to hold the pin low.

Vcc

HIN

LIN

GND

1

3

2

4LVG

OUT

HVG

Vboot8
7
6
5

D97IN517

PIN CONNECTION

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

Vout Output Voltage -3 toVboot - 18 V

Vcc Supply Voltage - 0.3 to +18 V

Vboot Floating Supply Voltage - 1 to 618 V

Vhvg Upper Gate Output Voltage - 1 to Vboot V

Vlvg Lower Gate Output Voltage -0.3 toVcc +0.3 V

Vi Logic Input Voltage -0.3 toVcc +0.3 V

dVout/dt Allowed Output Slew Rate 50 V/ns

Ptot Total Power Dissipation (Tj = 85 °C) 750 mW

Tj Junction Temperature 150 °C

Ts Storage Temperature -50 to 150 °C

Note: ESD immunity for pins 6, 7 and 8is guaranteed up to 900V (Human Body Model)

L6385

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RECOMMENDED OPERATINGCONDITIONS

Symbol Pin Parameter Test Condition Min. Typ. Max. Unit

Vout 6 Output Voltage Note 1 580 V

Vboot-

Vout

8 Floating Supply Voltage Note 1 17 V

fsw Switching Frequency HVG,LVGloadCL = 1nF 400 kHz

Vcc 2 Supply Voltage 17 V

T

j

Junction Temperature -45 125 °C

Note 1:

If the condition Vboot - Vout < 18V is guaranteed, Vout can range from -3 to 580V.

ELECTRICALCHARACTERISTICS
AC Operation(Vcc= 15V;Tj = 25°C)

Symbol Pin Parameter Test Condition Min. Typ. Max. Unit

ton 1 vs 7 High/Low SideDriver Turn-On

Propagation Delay

Vout = 0V 110 ns

toff 2 vs 5 High/Low SideDriver Turn-Off

Propagation Delay

Vout = 600V 105 ns

tr 7,5 Rise Time CL = 1000pF 50 ns
tf 7,5 Fall Time CL = 1000pF 30 ns

DC OPERATION(Vcc = 15V; Tj = 25°C)

Symbol Pin Parameter Test Condition Min. Typ. Max. Unit

Low Supply Voltage Section

Vcc 3 Supply Voltage 17 V
Vccth1 Vcc UV Turn On Threshold 9.1 9.6 10.1 V
Vccth2 Vcc UV Turn Off Threshold 7.9 8.3 8.8 V
Vcchys Vcc UV Hysteresis 1.3 V

Iqccu Undervoltage Quiescent Supply

Current

Vcc≤9V 150 220

µ

A

Iqcc Quiescent Current Vcc = 15V 250 320 µA

R

dson

Bootstrap Driver on Resistance (*) Vcc ≥ 12.5V 125 Ω

Bootstrapped supply Voltage Section

VBS 8 Bootstrap Supply Voltage 17 V
VBSth1 VBS UV Turn On Threshold 8.5 9.5 10.5 V
VBSth2 VBS UV Turn Off Threshold 7.2 8.2 9.2 V

VBShys VBS UV Hysteresis 1.3 V

IQBS VBS Quiescent Current HVG ON 200

µ

A

ILK High VoltageLeakage Current VS = VB = 600V 10 µA

High/Low Side Driver

Iso 5,7 Source Short Circuit Current VIN = Vih (tp < 10µs) 300 400 mA

Isi Sink Short Circuit Current VIN = Vil (tp < 10µs) 450 650 mA

Logic Inputs

Vil 2,3 Low LevelLogic Threshold Voltage 1.5 V

Vih High LevelLogic Threshold Voltage 3.6 V

Iih High LevelLogic Input Current VIN = 15V 50 70

µ

A

Iil Low Level Logic Input Current VIN = 0V 1

µ

A

(*) R

DSON

is tested in the following way: R

DSON

=

(

V

CC

−

V

CBOOT1

)

−(

V

CC

−

V

CBOOT2

)

I

1

(

V

CC,VCBOOT1

)−

I

2

(

V

CC,VCBOOT2

)

where I

1

is pin 8 current when V

CBOOT=VCBOOT1,I2

when V

CBOOT=VCBOOT2

.

L6385

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