L6498
High voltage high and low-side 2 A gate driver
Datasheet
-
production data
Description
SO-8
SO-14
The L6498 is a high voltage device manufactured
with the BCD6 “OFF-LINE” technology. It is a
single chip half-bridge gate driver for the
N-channel power MOSFET or IGBT.
The high-side (floating) section is designed to
stand a DC voltage rail up to 500 V, with 600 V
transient withstand voltage. The logic inputs are
CMOS/TTL compatible down to 3.3 V for easy
interfacing control units such as microcontrollers
or DSP.
Both device outputs can sink 2.5 A and source 2
A, making the L6498 particularly suited for
medium and high capacity power
MOSFETs\IGBTs.
The outputs cannot be simultaneously driven high
thanks to an integrated interlocking function.
The independent UVLO protection circuits
present on both the lower and upper driving
sections prevent the power switches from being
operated in low efficiency or dangerous
conditions.
The integrated bootstrap diode as well as all of
the integrated features of this driver make the
application PCB design simpler and more
compact, and help to reduce the overall bill of
material.
Features
Transient withstand voltage 600 V
dV/dt immunity ± 50 V/ns in full temperature
range
Driver current capability:
– 2 A source typ. at 25 °C
– 2.5 A sink typ. at 25 °C
Short propagation delay: 85 ns
Switching times 25 ns rise/fall with 1 nF load
3.3 V, 5 V TTL/CMOS inputs with hysteresis
Integrated bootstrap diode
Interlocking function
UVLO on both high-side and low-side sections
Compact and simplified layout
Bill of material reduction
Flexible, easy and fast design
Applications
Motor driver for home appliances, factory
automation, industrial drives and fans
HID ballasts
Power supply units
DC-DC converters
Induction heating
Wireless chargers
Industrial inverters
UPS
Welding
September 2017
This is information on a product in full production.
DocID030318 Rev 3
1/20
www.st.com
Contents
L6498
Contents
1
2
3
Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description and connection diagram . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
3.2
3.3
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
5
6
7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Bootstrap driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
C
BOOT
selection and charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.1
8.2
SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SO-14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9
10
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2/20
DocID030318 Rev 3
Pin description and connection diagram
L6498
2
Pin description and connection diagram
Figure 3. Pin connection SO-8 (top view)
Figure 4. Pin connection SO-14 (top view)
Table 1. Pin description
Pin no.
Pin name
SO-8
1
2
3
4
5
6
7
8
-
-
-
SO-14
1
2
-
6
7
11
12
13
3
5
4, 8, 9, 10, 14
HIN
LIN
GND
LVG
(1)
VCC
OUT
HVG
(1)
BOOT
SGND
PGND
NC
I
I
P
O
P
P
O
P
P
P
-
High-side driver logic input (active high)
Low-side driver logic input (active high)
Device ground
Low-side driver output
Lower section supply voltage
High-side (floating) common voltage
High-side driver output
Bootstrapped supply voltage
Signal ground
Power ground
Not connected
Type
Function
1. The circuit guarantees less than 1 V on the LVG and HVG pins (at I
sink
= 10 mA), with V
CC
> 3 V. This
allows omitting the “bleeder” resistor connected between the gate and the source of the external MOSFET
normally used to hold the pin low.
4/20
DocID030318 Rev 3
L6498
Electrical data
3
3.1
Electrical data
Absolute maximum ratings
Table 2. Absolute maximum ratings
(1)
Value
Symbol
V
CC
V
PGND
V
OUT
V
BOOT
V
hvg
V
lvg
V
i
dV
OUT
/dt
P
TOT
T
J
T
stg
ESD
Supply voltage
Low-side driver ground
Output voltage
Boot DC voltage
Boot transient withstand voltage (T
pulse
< 1 ms)
High-side gate output voltage
Low-side gate output voltage
Logic input pins voltage
Allowed output slew rate
Total power dissipation (T
A
= 25 °C) SO-14
Junction temperature
Storage temperature
Human body model
Parameter
Min.
-0.3
V
CC
- 21
V
BOOT
- 21
-0.3
-
V
OUT
- 0.3
(P)GND - 0.3
-0.3
-
-
-
-50
2
Max.
21
V
CC
+ 0.3
V
BOOT
+ 0.3
500
620
V
BOOT
+ 0.3
V
CC
+ 0.3
15
50
1
150
150
V
V
V
V
V
V
V
V
V/ns
W
°C
°C
kV
Unit
1. Each voltage referred to GND\SGND unless otherwise specified.
3.2
Thermal data
Table 3. Thermal data
Symbol
R
th(JA)
Parameter
Thermal resistance junction to ambient
Package
SO-8
SO-14
Value
185
120
Unit
°C/W
DocID030318 Rev 3
5/20
20
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