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L6741TR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
Pins description and connection diagrams L6741
4/16
2 Pins description and connection diagrams
Figure 3. Pins connection (Top view)
2.1 Pin description
Table 2. Pins descriptions
1
2
3
4
LGATE
VCC
PVCC
PHASE
GND
PWM
BOOT
UGATE
5
6
7
8
L6741
Pin n Name Function
1UGATE
High-side driver output.
Connect to High-Side MOSFET gate.
2BOOT
High-side driver supply. this pin supplies the high-side floating driver. Connect
through a R
BOOT
- C
BOOT
capacitor to the PHASE pin.
Internally connected to the cathode of the integrated Bootstrap diode. See
Section 5.3 for guidance in designing the capacitor value.
3PWM
Control input for the driver (5V compatible).
This pin controls the state of the driver and which external MOSFET have to be
turned-ON.
If left floating, it causes the driver to enter the High-Impedance (HiZ) state
which causes all mosfets to be OFF. See Section 5.1 for details about HiZ.
4GND
All internal references, logic and drivers are referenced to this pin. Connect to
the PCB ground plane.
5LGATE
Low-side driver output.
Connect directly to the Low-Side MOSFET gate. A small series resistor can be
useful to reduce dissipated power especially in high frequency applications.
6VCC
Device and LS driver power supply. Connect to any voltage between 5V and
12V. Bypass with low-ESR MLCC capacitor to GND.
7 PVCC
Integrated bootstrap diode anode supply.
Connect to any voltage between 5V and 12V to supply the HS driver
accordingly.
8 PHASE
High-side driver return path. Connect to the high-side MOSFET source.
This pin is also monitored for the adaptive dead-time management and Pre-OV
protection.
Obsolete Product(s) - Obsolete Product(s)
L6741 Thermal data
5/16
3 Thermal data
Table 3. Thermal data
4 Electrical specifications
4.1 Absolute maximum ratings
Table 4. Absolute maximum ratings
Symbol Parameter Value Unit
R
thJA
Thermal resistance junction to ambient
(Device soldered on 2s2p PC Board - 67mm x 67mm)
85 °C/W
T
MAX
Maximum junction temperature 150 °C
T
STG
Storage temperature range 0 to 150 °C
T
J
Junction temperature range 0 to 125 °C
P
TOT
Maximum power dissipation at 25°C
(Device soldered on 2s2p PC Board)
1.15 W
Symbol Parameter Value Unit
V
CC,
V
PVCC
to GND -0.3 to 15 V
V
BOOT
, V
UGATE
to GND
to PHASE
41
15
V
V
PHASE
to GND -8 to 26 V
V
LGATE
to GND -0.3 to VCC + 0.3 V
V
PWM
to GND -0.3 to 7 V
V
CC,
V
PVCC
to GND -0.3 to 15 V
Obsolete Product(s) - Obsolete Product(s)
Electrical specifications L6741
6/16
4.2 Electrical characteristics
Table 5. Electrical characteristics
(V
CC
= 12V±15%, T
J
= 0°C to 70°C unless otherwise specified).
Symbol Parameter Test conditions Min Typ Max Unit
Supply current and power-ON
I
CC
VCC supply current
UGATE and LGATE = OPEN
BOOT = 12V
5mA
I
BOOT
BOOT supply current
UGATE = OPEN;
PHASE to GND; BOOT = 12V
2mA
UVLO
VCC
VCC Turn-ON VCC rising 4.1 V
VCC Turn-OFF VCC falling 3.5 V
PWM input
PWM
Input high - V
PWM_IH
PWM rising 2.3 V
Input low - V
PWM_IL
PWM falling 1 V
t
HiZ
HiZ Hold-off Time 150 ns
Gate drivers
R
HIHS
HS Source resistance BOOT - PHASE = 12V; 100mA 2.3 2.8 Ω
I
UGATE
HS Source Current
(1)
1. Parameter guaranteed by designed, not fully tested in production
BOOT - PHASE = 12V;
C
UGATE
to PHASE = 3.3nF
2A
R
LOHS
HS Sink Resistance BOOT - PHASE = 12V; 100mA 2 2.5 Ω
R
HILS
LS Source Resistance 100mA 1.3 1.8 Ω
I
LGATE
LS Source Current
(1)
C
LGATE
to GND = 5.6nF 3 A
R
LOLS
LS Sink Resistance 100mA 1 1.5 Ω
Protections
V
PRE_OV
Pre-OV threshold PHASE rising 1.8 V
Obsolete Product(s) - Obsolete Product(s)
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L6741TR

Mfr. #:
Buy L6741TR
Manufacturer:
STMicroelectronics
Description:
Gate Drivers SnglPphase Dual MOSFET Driver
Lifecycle:
New from this manufacturer.
Delivery:
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