FAN7093 — High-Current PN Half-Bridge Driver
April 2014
FAN7093
High-Current PN Half-Bridge Driver
Features
Path Resistance for a Full-Bridge Configuration:
Max. 30.5 mΩ at 150°C
PWM Capability: > 60 kHz Combined with Active
Free Wheeling
Switched-Mode Current Limitation for Reduced
Power Dissipation In Over-Current Condition
Current Limit Protection: Typ. 43 A
Independent Current-Sense Output and Diagnostic
Flag for High and Low Sides
Over-Temperature Protection (OTP) with Latch
Shorted-Load Protection with Latch Behavior
Over-Voltage Protection (OVP) with Lockout
Under-Voltage Protection (UVP)
Logic Level Control Inputs
Adjustable Slew Rates for Optimized EMI
Typical Slew Rate of 1 V/µs with
Open Slew Rate Pin
1
Description
The FAN7093 is an integrated high-current half-bridge
driver for electric motor drive applications. It contains
one P-channel high-side MOSFET and one N-channel
low-side MOSFET with an integrated control IC in one
package. With the P-channel high-side switch, the need
for a charge pump is eliminated, which minimizes EMI.
Pins IN and /INH are logic-level inputs and control the
half-bridge output. The diagnostic and current sense IS
pin outputs a current that is proportional to the current
flowing through the half-bridge MOSFETs. The IS pin
output represents current for the P-channel or the N-
channel, depending on which is active.
The part is protected against a short to battery or
ground of the out pin, over-current, over-temperature,
over-voltage, and under-voltage conditions. The
FAN7093 provides a cost- and space-optimized solution
for protected high-current PWM motor drives.
Figure 1.
TO263-7L
1
The
minimum
duty cycle is 34% when V
BATT
=14 V, R
SR
is
shorted, and the following parameters are at their typical
values: t
d(ON)HS
, t
d(ON)LS
, t
Slew(on)HS
, and t
Slew(on)LS.
© 2010 Fairchild Semiconductor Corporation
FAN7093 • Rev. 1.0.6
www.fairchildsemi.com
FAN7093 — High-Current PN Half-Bridge Driver
Ordering Information
Part Number
FAN7093_F085
Operating
Temperature Range
-40 to +150°C
Package
8-Lead, TO263, Molded, JEDEC Variation CA
Packing
Method
Tape & Reel
Block Diagram
Figure 2.
The FAN7093 is a high-current half-bridge that contains
three separate chips in one package: one P-channel
high-side MOSFET, one N-channel low-side MOSFET,
and with a control IC. All three chips are mounted on
one common lead frame, using chip-on-chip and chip–
by-chip technologies. The power MOSFETs are vertical
MOS transistors to ensure minimum on-state resistance.
Using a P-channel high-side switch eliminates a charge
pump and reduces EMI. A microcontroller is able to
control the logic level inputs of IN and /INH of the half-
bridge. The diagnostic pin IS is a current output stage
that delivers a proportional current through the P-
channel and N-channel MOSFETS, depending on which
is being activated, with the IN or /INH pin forcing
Block Diagram
conditions. In case of a short to VBATT or ground, the
IS pin acts as an error flag. The error flag can be
detected as a logic HIGH level through an attached
microcontroller. In an over-current situation, the control
IC turns off the MOSFETs and tries to turn them back
on after a cool down time of 140 μs (typical). The control
IC protects the MOSFETs against over-voltage, under–
voltage, and over–temperature conditions. The dead
time, to prevent shoot-through between the P- and N-
channel MOSFET, is also generated by the control IC.
The slew rate of the outputs can be adjusted through an
external resistor connected to the SR pin. The FAN7093
can be combined with another FAN7093 to form a full-
bridge drive. Multiple FAN7093 can be combined in full-
or half-bridge three-phase drive configurations.
© 2010 Fairchild Semiconductor Corporation
FAN7093 • Rev. 1.0.6
www.fairchildsemi.com
2
FAN7093 — High-Current PN Half-Bridge Driver
Pin Configuration
Figure 3.
Pin Assignments
Pin Definitions
Pin
1
2
3
4, 8
5
6
7
Symbol
GND
IN
/INH
OUT
(1)
(1)
I/O
Ground
I
I
O
I
O
Function
Input. Defines whether the high-side (HS) or low-side (LS) switch is activated.
Inhibit. When set to LOW, the device enters Sleep Mode and resets Over-
Temperature Protection (OTP) and the HS and LS short latch.
Power output of the bridge
Slew rate. The slew rate of the power switches can be adjusted by connecting a
resistor between the SR and GND pins.
Current sense and diagnostics
Supply
SR
IS
V
BATT
(1)
Note:
1. This pin needs power wiring.
Table 1.
Truth Table
/INH
LOW
HIGH
HIGH
Device State
Normal Operation
Over-Voltage
I
OUT
≤ I
CP
Over-Voltage
I
OUT
> I
CP
Under-Voltage
Over-Temperature or
Shorted LS or HS
Over-Temperature
or Shorted LS or HS
Current Limit
IN
X
LOW
HIGH
X
HS
OFF
OFF
ON
ON
LS
OFF
ON
OFF
OFF
IS
LOW
CS
CS
HIGH
Standby Mode
LS Active
HS Active
Mode
X
Shutdown of LS, HS Activated, Error Detected
Shutdown of LS, HS Error Detected
Reset with /INH HIGH to LOW to HIGH when
condition no longer exists
UV Lockout
Standby Mode, Reset of Latch
Shutdown with Latch, Error Detected
Switched Mode, Error Detected
Switched Mode, Error Detected
(2)
(2)
X
X
LOW
HIGH
HIGH
HIGH
X
X
X
X
HIGH
LOW
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
HIGH
LOW
LOW
HIGH
HIGH
HIGH
Notes:
2. Device resumes normal operation after t
CLS
. The error signal is reset after 2 x t
CLS
.
3. X=Don’t care input and CS=Current Sense Mode status flag.
© 2010 Fairchild Semiconductor Corporation
FAN7093 • Rev. 1.0.6
www.fairchildsemi.com
3
FAN7093 — High-Current PN Half-Bridge Driver
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only. T
J
= -40°C to +150°C; all voltages with respect to ground, and
positive current flowing into pin (unless otherwise specified).
Symbol
V
BATT
V
SR
V
IS
I
D(HS)
,
I
D(LS)
I
D(HS),
I
D(LS)
I
D(HS),
I
D(LS)
T
J
T
STG
Parameter
Supply Voltage
(4)
(4)
Condition
Min.
-0.3
-0.3
-0.3
-0.3
Typ.
Max.
45
45
1.5
7.5
Unit
V
V
V
V
A
A
A
V
IN
/V
INH
Logic Input Voltage
Voltage at SR Pin
Voltage at IS Pin
(4)
(4)
HS/LS Continuous Drain Current
HS/LS Pulsed Drain Current
HS/LS PWM Current
(4,5)
(4,5)
(4,5)
T
C
< 85°C
T
C
< 85°C Single Pulse <
5 µs
T
C
< 125°C f=1 kHz,
DC=50%
-40
-55
IN, /INH, SR, IS
OUT, GND, VBATT
-2
-6
-46/46
-90/90
-55/55
Temperatures
Junction Temperature
Storage Temperature
(4)
150
150
2
6
°C
°C
(4)
Electrostatic Discharge Capability (ESD)
ESD
Human Body Model, JESD22-A114
(6)
kV
Notes:
4. Not subject to production testing, specified by design.
5. Maximum reachable current may be smaller, depending on current-limit level.
6. ESD susceptibility, HBM according to AEC_Q100-0042 / JESD22-A114-B (1.5 kΩ, 100 pF).
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameter
Condition
Parameter
Deviations Possible
Min.
7
5.5
-40
Typ.
Max.
18
28.0
150
Unit
V
V
°C
°C/W
°C/W
°C/W
V
BATT(NOM)
Supply Voltage Range for Nominal Operation
V
BATT(EXT)
Supply Voltage Range for Extended Operation
T
J
ϴ
JC(LS)
ϴ
JC(HS)
ϴ
JA
Junction Temperature
Thermal Resistance, Junction-Case, Low-Side
(7)
Switch ϴ
JC(LS)
=∆T
J
(LS) / P
V
(LS)
Thermal Resistance, Junction-Case, High-Side
(7)
Switch ϴ
JC(HS)
=∆T
J
(HS) / P
V
(HS)
Thermal Resistance, Junction-Ambient
(7)
0.8
0.45
Using Pad Area of
One Square Inch of
Two-Ounce Copper
40
Note:
7. Not subject to production test; specified by design.
© 2010 Fairchild Semiconductor Corporation
FAN7093 • Rev. 1.0.6
www.fairchildsemi.com
4
FAN7093 — High-Current PN Half-Bridge Driver
Electrical Characteristics
Unless otherwise specified
,
V
BATT
= 7 V to 18 V, T
J
= -40°C to +150°C, I
L
= 0 A, all voltages with respect to ground,
and positive current flowing into pin.
Symbol
IV
BATT(ON)
Parameter
Supply Current
Condition
V
INH
=5 V, V
IN
=5 V, R
SR
=0 Ω,
DC-Mode, No Fault Condition
V
INH
=0 V, V
IN
=0 V
Min.
Typ.
Max. Unit
5.0
450
mA
µA
IV
BATT(OFF)
Quiescent Current
Power Stage Characteristics
The power stages of the FAN7093 consist of a P-channel vertical DMOS transistor for the high-side switch and an N-
channel vertical DMOS transistor for the low-side switch. All protection and diagnostic functions are located in the
2
control die. Both switches can be operated up to 60 kHz , allowing active freewheeling and minimizing power
dissipation in the forward operation of the integrated diodes.
The on-state resistance, R
DS(ON)
, is dependent on the supply voltage V
BATT
as well as on the junction temperature, T
J
.
Power Stages — Static Characteristics
Unless otherwise specified, V
BATT
=7 V to 18 V, T
J
=-40°C to +150°C, all voltages with respect to ground, and positive
current flowing into pin.
Symbol
High-Side Switch
R
DS(ON)_HS
I
LEAK(HS)
V
RDF
R
DS(ON)_LS
I
Leak(LS)
Parameter
On-State High-Side Resistance
Leakage Current
Reverse Diode Forward-Voltage
On-State Low-Side Resistance
Leakage Current
Reverse Diode Forward-Voltage
(9)
(9)
Condition
I
OUT
=-20 A; V
BATT
=14 V
V
INH
=0 V, V
OUT
=0 V
I
OUT
=-9 A
I
OUT
=20 A; V
BATT
=14 V
V
INH
=0 V, V
OUT
=V
BATT
I
OUT
=9 A
(8)
(8)
Min.
Typ.
Max.
12.3
50
1.5
18.2
10
-1.5
Unit
mΩ
µA
V
mΩ
µA
V
Low-Side Switch
Notes:
8. Specified R
DS(ON)
value is related to normal soldering points; R
DS(ON)
values are specified for
FAN7093_F085: pin 1,7 to pin 8 (tab, backside).
9. Due to active freewheeling, the diode is conducting only for a few µs, depending on the value of the
external R
SR
resistor.
2
The
minimum
duty cycle is 34% when V
BATT
=14 V, R
SR
is shorted and the following parameters are at their typical values:
t
d(ON)HS
, t
d(ON)LS
, t
Slew(on)HS
, and t
Slew(on)LS.
© 2010 Fairchild Semiconductor Corporation
FAN7093 • Rev. 1.0.6
www.fairchildsemi.com
5
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