A6387
High voltage high- and low-side driver for automotive applications
Datasheet
-
production data
Outputs in phase with inputs
Interlocking function
AECQ100 automotive qualified
SO-8
Applications
Drive inverters for HEV and EV
HID ballasts, power supply units
Motion driver for home appliances, factory
automation, industrial drives
Features
High voltage rail up to 550 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 1 nF
load
CMOS/TTL Schmitt-trigger inputs with
hysteresis and pull down
Internal bootstrap diode
Description
The A6387 is a high voltage device,
manufactured with the BCD™ “offline”
technology. It is a single chip half-bridge gate
driver for N-channel Power MOSFETs or IGBTs.
The high-side (floating) section is designed to
stand a voltage rail of up to 550 V. The logic
inputs are CMOS/TTL compatible for easy
interfacing of the microcontroller or DSP.
Figure 1. Block diagram
BOOTSTRAP DRIVER
8
Vboot
Cboot
V
CC
3
H.V.
UV
DETECTION
R
7
2
HIN
LOGIC
LEVEL
SHIFTER
S
OUT
6
V
CC
1
LIN
LVG
DRIVER
4
GND
5
LVG
TO LOAD
HVG
DRIVER
HVG
D00IN1135
February 2015
This is information on a product in full production.
DocID023386 Rev 5
1/14
www.st.com
Contents
A6387
Contents
1
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
1.2
1.3
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
3
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
3.2
AC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
5
Input logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Bootstrap driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
C
BOOT
selection and charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6
7
8
9
Typical characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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A6387
Electrical data
1
1.1
Electrical data
Absolute maximum ratings
Table 1. Absolute maximum ratings
Symbol
V
cc
V
out
V
boot
V
hvg
V
lvg
V
i
dV
out
/dt
P
tot
T
j
T
stg
ESD
Supply voltage
Output voltage
Bootstrap voltage
High-side gate output voltage
Low-side gate output voltage
Logic input voltage
Allowed output slew rate
Total power dissipation (T
A
= 85 °C)
Junction temperature
Storage temperature
Human Body Model
-50
2
Parameter
Min.
- 0.3
Max.
18
Unit
V
V
V
V
V
V
V/ns
mW
°C
°C
kV
V
boot
- 18 V
boot
+ 0.3
- 0.3
568
V
out
- 0.3 V
boot
+ 0.3
- 0.3
- 0.3
V
cc
+ 0.3
V
cc
+ 0.3
50
750
150
150
1.2
Thermal data
Table 2. Thermal data
Symbol
R
th(JA)
Parameter
Thermal resistance junction to ambient
Value
150
Unit
°C/W
1.3
Recommended operating conditions
Table 3. Recommended operating conditions
Symbol
V
cc
V
BO(1)
V
out
f
sw
T
j
Pin
3
Parameter
Supply voltage
Test condition
Min. Max.
6.3
-6
(2)
HVG, LVG load C
L
= 1 nF
-40
17
17
530
400
125
Unit
V
V
V
kHz
°C
8 - 6 Floating supply voltage
7
Output voltage
Switching frequency
Junction temperature
1. V
BO
= V
boot
- V
out
.
2. LVG off. V
CC
= 12 V.
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14
Pin connection
A6387
2
Pin connection
Figure 2. Pin connection (top view)
Table 4. Pin description
No.
1
2
3
4
5
6
7
8
Pin
LIN
HIN
V
cc
GND
LVG
(1)
OUT
HVG
(1)
V
boot
Type
I
I
P
P
O
P
O
P
Low-side driver logic input
High-side driver logic input
Low voltage power supply
Ground
Low-side driver output
High-side driver floating reference
High-side driver output
Bootstrap supply voltage
Function
1. The circuit provides less than 1 V on the LVG and HVG pins (at I
sink
= 10 mA). This allows the omitting of
the “bleeder” resistor connected between the gate and the source of the external MOSFET normally used
to hold the pin low.
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A6387
Electrical characteristics
3
3.1
Electrical characteristics
AC operation
V
CC
= 15 V; T
J
= -40 °C ÷ 125 °C, unless otherwise specified.
Table 5. AC operation electrical characteristics
Symbol
t
on
t
off
t
r
t
f
Pin
Parameter
Test condition
V
out
= 0 V
V
boot
= V
CC
C
L
= 1 nF
C
L
= 1 nF
Min.
40
40
Typ.
120
110
50
30
Max.
240
210
100
80
Unit
ns
ns
ns
ns
1 vs. 5 High/low-side driver turn-on
2 vs. 7 propagation delay
1 vs. 5 High/low-side driver turn-off
2 vs. 7 propagation delay
5, 7
5, 7
Rise time
Fall time
Figure 3. Timing of input/output signals; turn-on/off propagation delays
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