L6740L STMicroelectronics, L6740L Datasheet - Page 22

• 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

Hybrid CPU support and CPU_TYPE detection
5.4.4
5.4.5
22/44
Table 10.
Figure 8.
HiZ management
L6740L is able to manage HiZ through both the PWMx and driver enable signals. When the
controller wants to set in high impedance the output of one section, it set the relative PWM
floating and, at the same time, pulls-low the related ENDRV.
Hardware jumper override - V_FIX
Anytime the pin OVP/V_FIX is driven low, the controller enters V_FIX mode.
When in V_FIX mode, both NB and CORE section voltages are governed by the information
shown in
and SVD are considered as static VID and the output voltage will change according to their
status. Dynamic SVC/SVD-change management is provided in this condition.
V_FIX mode is intended for system debug only.
Protection management differs in this case, see
Pull-Up to 3.3V
Pull-Up to <3V
PSI_L
GND
Table
PSI strategy
System efficiency enhancement by PSI
7. Regardless of the state of PWROK, the device will work in SVI mode. SVC
No strategy.
PSI_L still reproduces the status of the PSI Flag
Phase number is cut by 1 while PSI_L is asserted.
Phase number is cut by 2 while PSI_L is asserted.
PSI strategy
Section 7.1
for details.
L6740L