ST L6386AD User Manual

Features

L6386AD

High-voltage high and low side driver

■ High voltage rail up to 600 V

■ dV/dt immunity ±50 V/nsec in full temperature

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

■ Under voltage lock out on lower and upper

driving section

■ Integrated bootstrap diode

■ Outputs in phase with inputs

Figure 1. Block diagram

BOOTSTRAP DRIVER

V

HIN

SD

LIN

SGND

CC

4

3

2

1

7 6

UV

DETECTION

UV

DETECTION

LEVEL

SHIFTER

LOGIC

SO-14

Description

The L6386AD is an high-voltage device,
manufactured with the BCD "OFF-LINE"
technology. It has a driver structure that enables
to drive independent referenced Channel Power
MOS or IGBT. The high-side (floating) section is
enabled to work with voltage rail up to 600 V. The
Logic Inputs are CMOS/TTL compatible for ease
of interfacing with controlling devices.

Vboot

VREF

R

R

S

-

+

LVG

DRIVER

V

CC

14

HVG

DRIVER

13

12

H.V.

HVG

OUT

LVG

9

PGND

8

DIAG

5

CIN

C

BOOT

TO LOAD

D97IN520D

July 2008 Rev 1 1/17

www.st.com

17

Contents L6386AD

Contents

1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 AC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 DC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Bootstrap driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 CBOOT selection and charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5 Typical characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2/17

L6386AD Electrical data

1 Electrical data

1.1 Absolute maximum ratings

Table 1. Absolute maximum ratings

Symbol Parameter Value Unit

V

V

V

V

V

V

V

dV

P

T

Output voltage -3 to V

out

Supply voltage - 0.3 to +18 V

cc

Floating supply voltage -1 to 618 V

boot

High-side gate output voltage - 1 to V

hvg

Low-side gate output voltage -0.3 to Vcc +0.3 V

lvg

V

Logic input voltage -0.3 to Vcc +0.3 V

i

Open drain forced voltage -0.3 to Vcc +0.3 V

diag

Comparator input voltage -0.3 to 10 V V

cin

/dt Allowed output slew rate 50 V/ns

out

Total power dissipation (TJ = 85 °C) 750 mW

tot

T

Junction temperature 150 °C

j

Storage temperature -50 to 150 °C

stg

- 18 V

boot

V

boot

Note: ESD immunity for pins 12, 13 and 14 is guaranteed up to 900V (Human Body Model)

1.2 Thermal data

Table 2. Thermal data

Symbol Parameter SO-14 Unit

Thermal Resistance Junction to ambient 165 °C/W

R

th(JA)

1.3 Recommended operating conditions

Table 3. Recommended operating conditions

Symbol Pin Parameter Test condition Min Typ Max Unit

V

V

BS

f

sw

V

T

1. If the condition V

2. VBS = V

12 Output voltage

out

(2)

14 Floating supply voltage

Switching frequency HVG,LVG load CL = 1 nF 400 kHz

cc

4 Supply voltage 17 V

J

Junction temperature -45 125 °C

- V

boot

- V

boot

out

< 18 V is guaranteed, V

out

can range from -3 to 580 V

out

3/17

(1)

(1)

17 V

580 V

Pin connection L6386AD

2 Pin connection

Figure 2. Pin connection (Top view)

1

2

3

4

5

6

7 PGND

D97IN521A

14

13

12

11

10

9

8

Table 4. Pin description

LIN

SD

HIN

V

CC

DIAG

CIN

SGND

N° Pin Type Function

1 LIN I Low-side driver logic input

2 SD

(1)

I Shut down logic input

3 HIN I High-side driver logic input

4 VCC Low voltage supply

5 DIAG O Open drain diagnostic output

6 CIN I Comparator input

7 SGND Ground

8 PGND Power ground

(1)

9 LVG

O Low-side driver output

10, 11 N.C. Not connected

V

boot

HVG

OUT

N.C.

N.C.

LVG

12 OUT O High-side driver floating driver

(1)

13 HVG

14 V

1. The circuit guarantees 0.3V maximum on the pin (@ Isink = 10 mA), with VCC >3V. This allows to omit the
"bleeder" resistor connected between the gate and the source of the external MOSFET normally used to
hold the pin low; the gate driver assures low impedance also in SD condition.

O High-side driver output

Bootstrapped supply voltage

boot

4/17

L6386AD Electrical characteristics

3 Electrical characteristics

3.1 AC operation

Table 5. AC operation electrical characteristcs (VCC = 15 V; TJ = 25 °C)

Symbol Pin Parameter Test condition Min Typ Max Unit

t

on

1,3 vs

t

off

t

sd

t

r

t

f

High/low-side driver turn-on
propagation delay

9,13

High/low-side driver turn-off
propagation delay

2 vs

Shut down to high/low side

9,13

propagation delay

Rise time C

9, 13

Fall time CL = 1000 pF 30 ns

3.2 DC operation

Table 6. DC operation electrical characteristcs (VCC = 15 V; TJ = 25 °C)

Symbol Pin Parameter Test condition Min Typ Max Unit

Low supply voltage section

V

ccth1

V

ccth2

V

cchys

I

qccu

I

qcc

Bootstrapped supply section

V

cc

Vcc UV turn off threshold 7.9 8.3 8.8 V

Vcc UV hysteresis 1.3 V

4

Undervoltage quiescent
supply current

Quiescent current Vcc = 15 V 250 320 µA

110 150 ns

= 0 V

V

out

110 150 ns

105 150

= 1000 pF 50 ns

L

UV turn on threshold 9.1 9.6 10.1 V

≤ 9 V 200 µA

V

cc

V

bth1

V

V

bth2

V

V

I

qboot

R

DS(on)

bhys

I

14

lk

V

UV turn on threshold 8.5 9.5 10.5 V

boot

UV turn off threshold 7.2 8.2 9.2 V

boot

UV hysteresis 1.3 V

boot

V

quiescent current HVG ON 200 µA

boot

High voltage leakage current

Bootstrap driver on
resistance

(1)

Vhvg = Vout = Vboot
= 600 V

Vcc ≥ 12.5 V;
Vin = 0 V

125 Ω

5/17

10 µA

Electrical characteristics L6386AD

Table 6. DC operation electrical characteristcs (continued)(VCC = 15 V; TJ = 25 °C)

Symbol Pin Parameter Test condition Min Typ Max Unit

Driving buffers section

I

so

I

si

9, 13High/low side source short

9, 13High/low side sink short

Logic inputs

V

il

V

ih

1,2,

I

ih

I

il

3

Sense comparator

V

io

I

V

V

1. R

where I

io

ref

DS(on)

6 Input bias current V

2

ol

is tested in the following way:

is pin 14 current when V

1

= Vih (tp < 10 µs) 300 400 mA

V

circuit current

circuit current

IN

VIN = Vil (tp < 10 µs) 500 650 mA

Low level logic voltage 1.5 V

High level logic voltage

3.6 V

High level logic input current VIN = 15 V 50 70 µA

Low level logic input current VIN = 0 V 1 µA

Input offset voltage -10 10 mV

≥ 0.5 0.2 µA

cin

Open drain low level output
voltage

Comparator reference
voltage

V

R

DSON

CBOOT

CCVCBOOT1

------------------------------------------------------------------------------------------------------ -=

()I2VCC,V

I

1VCC,VCBOOT1

= V

CBOOT1

Iod = -2.5 mA 0.8 V

0.46 0.50 0.54 V

–()VCCV

, I2 when V

CBOOT

()–

= V

–()–

CBOOT2

CBOOT2

CBOOT2

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