參數(shù)資料
型號: L6712QTR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING CONTROLLER, QCC36
封裝: 6 X 6 MM, 1 MM HEIGHT, VFQFPN-36
文件頁數(shù): 23/29頁
文件大?。?/td> 624K
代理商: L6712QTR
3/29
L6712A L6712
Figure 3. Pin Connection (Top view)
Table 4. Electrical Characteristcs
(VCC = 12V±10%, TJ = 0°C to 70°C unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vcc SUPPLY CURRENT
ICC
VCC supply current
HGATEx and LGATEx open
VCCDR=BOOTx=12V
7.5
10
12.5
mA
ICCDR
VCCDR supply current
LGATEx open; VCCDR=12V
1.5
3
4
mA
IBOOTx
Boot supply current
HGATEx open; PHASEx to
PGND; VCC=BOOTx=12V
0.5
1
1.5
mA
POWER-ON
Turn-On VCC threshold
VCC Rising; VCCDR=5V
8.2
9.2
10.2
V
Turn-Off VCC threshold
VCC Falling; VCCDR=5V
6.5
7.5
8.5
V
Turn-On VCCDR
Threshold
VCCDR Rising
VCC=12V
4.2
4.4
4.6
V
Turn-Off VCCDR
Threshold
VCCDR Falling
VCC=12V
4.0
4.2
4.4
V
OSCILLATOR AND INHIBIT
fOSC
Initial Accuracy
OSC = OPEN
OSC = OPEN; Tj=0
°C to 125°C
135
127
150
165
178
kHz
INH
Inhibit threshold
ISINK=5mA
0.5
V
dMAX
Maximum duty cycle
L6712, OSC = OPEN: IDROOP=0
OSC = OPEN; IDROOP=70A
72
30
80
40
-
%
L6712A, OSC = OPEN
85
90
%
Vosc
Ramp Amplitude
3
V
FAULT
Voltage at pin OSC
OVP Active
4.75
5.0
5.25
V
1
2
3
4
5
6
7
8
9
27
26
25
24
23
22
21
20
19
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
N.
C
.
FB
G
FB
R
VI
D
0
VI
D
1
VI
D
2
P
GOO
D
B
OOT
2
DROO
P
FB
COM
P
SG
N
D
SG
N
D
VC
C
N.
C.
BOO
T
1
N.
C
N.C.
REF_IN/OUT
VSEN
ISEN1
PGNDS1
PGNDS2
ISEN2
N.C.
OSC
UGATE1
PHASE1
VCCDR
LGATE1
PGND
LGATE2
PHASE2
UGATE2
1
2
3
4
5
6
7
8
9
27
26
25
24
23
22
21
20
19
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
N.C.
REF_IN/OUT
VSEN
ISEN1
PGNDS1
PGNDS2
ISEN2
N.C.
OSC
PHASE1
VCCDR
LGATE1
PGND
LGATE2
PHASE2
SO28
VFQFPN-36
Corner Pin internally connected to the Exposed Pad.
LGATE1
VCCDR
PHASE1
FB
BOOT1
UGATE1
DROOP
VCC
SGND
COMP
ISEN1
PGNDS1
REF_IN/OUT
VSEN
VID1
VID0
FBR
VID2
BOOT2
PGOOD
UGATE2
PHASE2
LGATE2
PGND
OSC/INH/FAULT
ISEN2
PGNDS2
FBG
1
3
2
4
5
6
7
8
9
18
17
16
15
19
20
10
11
12
13
14
24
23
22
21
25
26
27
28
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