L6740L STMicroelectronics, L6740L Datasheet - Page 3

IC HYBRID CONTROLLERS 48TQFP

L6740L

Manufacturer Part Number
L6740L
Description
IC HYBRID CONTROLLERS 48TQFP
Manufacturer
STMicroelectronics
Datasheet

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

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L6740L
7
8
9
10
11
12
13
6.8
6.9
6.10
Output voltage monitoring and protections . . . . . . . . . . . . . . . . . . . . . 31
7.1
7.2
7.3
7.4
Main oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
System control loop compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1
LTB Technology™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Layout guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
11.1
11.2
TQFP48 mechanical data and package dimensions . . . . . . . . . . . . . . 42
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Soft-start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
NB section - maximum duty-cycle limitation . . . . . . . . . . . . . . . . . . . . . . . 28
On-the-fly VID transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.10.1
Programmable overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Feedback disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PWRGOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Over-current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.4.1
7.4.2
Compensation network guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power components and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Small signal components and connections . . . . . . . . . . . . . . . . . . . . . . . 41
LS-Less start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
CORE section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
NB section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Contents
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