L6740L STMicroelectronics, L6740L Datasheet - Page 12

• Manufacturer Part Number: L6740L
• Description: IC HYBRID CONTROLLERS 48TQFP
• Manufacturer: STMicroelectronics

Specifications of L6740L

• Applications: Hybrid Controllers
• Voltage - Supply: 9 V ~ 15 V
• Current - Supply: 20mA
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP Exposed Pad, 48-eTQFP, 48-HTQFP, 48-VQFP
• Number Of Outputs: 2
• Output Current: 170 A
• Input Voltage: 13.2 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: 0 C
• Hybrid Controller: compatible with PVI and SVI CPUs
• Dual Controller: 2 to 4 scalable phases for CPU CORE, 1 phase for NB
• Dual Over-current Protection: Average and per-phase
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pins description and connection diagrams
2.2
12/44
Table 2.
Thermal data
Table 3.
45 to
42
43
44
48
Symbol
R
R
T
T
Pin#
MAX
thJC
STG
T
thJA
J
Pin description (continued)
Thermal data
Thermal resistance junction to ambient
(device soldered on 2s2p PC board)
Thermal resistance junction to case
Maximum junction temperature
Storage temperature range
Junction temperature range
Thermal pad
NB_ENDRV
NB_PWM
PWM1 to
ENDRV
PWM4
Name
External driver enable.
Open drain output used to control NB section external driver status:
pulled-low to manage HiZ conditions or pulled-high to enable the driver.
Pull up to 3.3 V (typ) or lower.
When in PVI mode, NB section is always kept in HiZ.
External driver enable.
Open drain output used to control CORE section external driver status:
pulled-low to manage HiZ conditions or pulled-high to enable the driver.
Pull up to 3.3 V (typ) or lower.
PWM output.
Connect to external driver PWM input. The device is able to manage
HiZ status by setting the pin floating. When in PVI mode, NB section is
kept in HiZ. See
PWM outputs.
Connect to external drivers PWM inputs. The device is able to manage
HiZ status by setting the pins floating.
By shorting to SGND PWM4 or PWM3 and PWM4, it is possible to
program the CORE section to work at 3 or 2 phase respectively.
See
Thermal pad connects the silicon substrate and makes good thermal
contact with the PCB. Connect to the PGND plane.
Section 5.4.4
Parameter
Section 5.4.4
for details about HiZ management.
for details about HiZ management.
Function
-40 to 150
0 to 125
Value
150
40
1
L6740L
°C/W
°C/W
Unit
°C
°C
°C