ST L6387 User Manual

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HIGH-VOLTAGE HIGH AND LOW SIDE DRIVER

HIGH VOLTAGE RAIL UP TO 600 V
dV/dt IMMUNITY +- 50 V/nsec IN FULL TEM-

PERATURE RANGE
DRIVER CURRENT CAPABILITY :

400 mA SOURCE,
650 mA SINK

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

CMOS/TTL SCHMITT TRIGGER INPUTS
WITH HYSTERESIS AND PULL DOWN

INTERNAL BOOTSTRAP DIODE
OUTPUTS IN PHASE WITH INPUTS

DESCRIPTION

The L6387 is an high-voltage device, manufac­tured with the BCD"OFF-LINE " technology. I t has
a Driver structure that enables to drive inde­pendent referenced N Channel Power MOS or

L6387

SO8 Minidip

ORDERING NUMBERS:

L6387D L6387

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.

BLOCK DIAGRAM

V

3

CC

DETECTION

2

HIN

1

LIN

UV

BOOTSTRAP DRIVER

LOGIC

LEVEL

SHIFTER

R
S

LVG

DRIVER

V

CC

HVG

DRIVER

D00IN1135

Vboot

8

H.V.

HVG

7

OUT

6

LVG

5

GND

4

Cboot

TO LOAD

May 2001

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L6387

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

Vout Output Voltage -3 to Vboot - 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 to Vcc +0.3 V

Vi Logic Input Voltage -0.3 to Vcc +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 8 is guaranteed up to 900V (Human Body Model)

PIN CONNECTION

LIN

HIN

Vcc

GND

1
2
3
4LVG

D97IN517

7
6
5

Vboot8
HVG
OUT

THERMAL DATA

Symbol Parameter SO8 Minidip Unit

R

th j-amb

Thermal Resistance Junction to Ambient 150 100 °C/W

PIN DESCRIPTION

N. Name Type Function

1 LIN I Lower Driver Logic Input
2 HIN I Upper Driver 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 High Side Driver Output
8 Vboot Bootstrap Supply Voltage

(*) The circuit guarantees 0.3V maxim um on the pin (@ I
and the source of the external MOSFET normally used to hold the pin low.

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

sink

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L6387

RECOMMENDED OPERATIN G CONDITIONS

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

Vout 6 Output Voltage Note 1 580 V

Vboot-

Vout

fsw Switching Frequency HVG,LVG load CL = 1 nF 400 kHz

Vcc 2 Supply Voltage 17 V

T

Note 1:

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

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

ton 1 vs 7 High/Low Side Driver Turn-On

toff 2 vs 5 High/Low Side Driver Turn-Off

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)

8 Floating Supply Voltage Note 1 17 V

j

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

Junction Temperature -45 125 °C

Vout = 0V 110 ns

Propagation Delay

Vout = 600V 105 ns

Propagation Delay

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 5.5 6 6.5 V
Vccth2 Vcc UV Turn Off Threshold 5 5.5 6 V
Vcchys Vcc UV Hysteresis 0.5 V

Iqccu Undervoltage Quiescent Supply

Vcc ≤ 9V 150 220 µA

Current

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

IQBS VBS Quiescent Current HVG ON 200 µA

ILK High Voltage Leakage 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 Level Logic Threshold Voltage 1.5 V

Vih High Level Logic Threshold Voltage 3.6 V

Iih High Level Logic Input Current VIN = 15V 50 70 µA

Iil Low Level Logic Input Current VIN = 0V 1 µA

(*) R

is tested in the following way: R

DSON

where I1 is pin 8 current when V

CBOOT

= V

DSON

CBOOT1

(

V

CC

=

(

I

V

1

, I2 when V

− V

CBOOT1

CC,VCBOOT1

CBOOT

− (VCC − V

)

) −

(

I

V

2

CC,VCBOOT2

= V

CBOOT2

CBOOT2

.

)

)

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