L6740L STMicroelectronics, L6740L Datasheet - Page 7

• 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

L6740L
1.2
Figure 4.
PWM1
PWM2
PWM3
PWM4
SGND
CS1+
CS2+
CS3+
CS4+
CS1-
CS2-
CS3-
CS4-
OSC
VCC
PWM1
PWM2
PWM3
PWM4
SGND
OSC
VCC
Block diagram
Block diagram
Σ
Σ
Σ
Σ
CURRENT
BALANCE
1.24V
AMD SVI / PVI FLEXIBLE
OFFSET
CORE_REF
INTERFACE
& NB_REF
NB_ENDRV
CORE - TOT CURRENT
OSC
I
OS
ENDRV
AMPLIFIER
ERROR
I
OS
MONITOR AND PROTECTION
CS1-
CONTROL LOGIC
OUTPUT VOLTAGE
MANAGEMENT
L6740L
I
DROOP
REMOTE
BUFFER
Typical application circuit and block diagram
64k
30μA
64k
I
NB_DROOP
NB CURR
SENSE
50μA +I
64k
64k
VCORE_REF
(from SVI/PVI decoding)
NB_OS
NB_REF
NB_ENDRV
ENDRV
NB_OS
NB_COMP
NB_FB
NB_DROOP
NB_FBG
NB_VSEN
ENDRV
NB_ENDRV
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