參數資料
型號: L6740L
廠商: STMICROELECTRONICS
元件分類: 模擬信號調理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP48
封裝: 7 X 7 MM, 1 MM HEIGHT, HTQFP-48
文件頁數: 43/44頁
文件大?。?/td> 755K
代理商: L6740L
Pins description and connection diagrams
L6740L
2
Pins description and connection diagrams
Figure 5.
Pins connection (top view)
2.1
Pin descriptions
48
47
46
45
44
43
42
41
40
39
38
37
13
14
15
16
17
18
19
20
21
22
23
24
36 35 34 33 32 31 30 29 28 27 26 25
123456789 10 11 12
CS1+
CS1-
CS2+
CS2-
CS3+
CS3-
CS4+
CS4-
OC_PHASE
N.C.
NB_ISEN
N.C.
PWM1
PWM2
PWM3
PWM4
NB_PWM
ENDRV
NB_ENDRV
PWRGOOD
SVD
SVC
EN
PWROK
VID1
VID0
NB_COMP
NB_FB
NB_DR
OOP
NB_VSEN
NB_FBG
NB_OS
OC_A
V
G
/
LI
OSC
/
FL
T
VID5
VID4
VCC
GND
COMP
FB
DR
OOP
VSEN
FBG
OS
LT
B
O
VP/V_FIX
LTB_GAIN
PSI_L
L6740L
Table 2.
Pin description
Pin#
Name
Function
1VCC
Device power supply.
Operative voltage is 12V ±15%. Filter with 1
μF MLCC to SGND.
2SGND
All the internal references are referred to this pin. Connect to the PCB
signal ground.
3
Core
section
COMP
Error amplifier output.
Connect with an RF - CF to FB. The CORE section or the device cannot
be disabled by grounding this pin.
4FB
Error amplifier inverting input.
Connect with a resistor RFB to VSEN and with an RF - CF to COMP.
Offset current programmed by OS is sunk through this pin.
5DROOP
A current proportional to the total current read is sourced from this pin
according to the current reading gain.
Short to FB to implement droop function, if not used, short to SGND.
6
VSEN
Output voltage monitor.
It manages OVP and UVP protections and PWRGOOD. Connect to the
positive side of the load for remote sensing. See Section 7 for details.
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