L6712ADTR 데이터 시트보기 (PDF) - STMicroelectronics
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L6712ADTR Datasheet PDF : 29 Pages
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Figure 3. Pin Connection (Top view)
L6712A L6712
LGATE1
1
VCCDR
2
PHASE1
3
UGATE1
4
BOOT1
5
VCC
6
SGND
7
COMP
8
FB
9
DROOP
10
REF_IN/OUT
11
VSEN
12
ISEN1
13
PGNDS1
14
28
PGND
27
LGATE2
26
PHASE2
25
UGATE2
UGATE2
PHASE2
27 26 25 24 23 22 21 20 19
28
18
29
17
OSC
N.C.
24
BOOT2
LGATE2 30
16 ISEN2
23
PGOOD
22
VID2
21
VID1
PGND 31
PGND 32
15 PGNDS2
14 PGNDS1
20
VID0
LGATE1 33
13 ISEN1
19
FBR
18
FBG
VCCDR 34
12 VSEN
17
OSC/INH/FAULT PHASE1 35
11 REF_IN/OUT
16
ISEN2
36
UGATE1
10 N.C.
15
PGNDS2
123456789
SO28
VFQFPN-36
Corner Pin internally connected to the Exposed Pad.
Table 4. Electrical Characteristcs
(VCC = 12V±10%, TJ = 0°C to 70°C unless otherwise specified)
Symbol
Parameter
Vcc SUPPLY CURRENT
ICC
VCC supply current
ICCDR
IBOOTx
VCCDR supply current
Boot supply current
POWER-ON
Turn-On VCC threshold
Turn-Off VCC threshold
Turn-On VCCDR
Threshold
Turn-Off VCCDR
Threshold
OSCILLATOR AND INHIBIT
fOSC
Initial Accuracy
INH
dMAX
Inhibit threshold
Maximum duty cycle
∆Vosc
FAULT
Ramp Amplitude
Voltage at pin OSC
Test Condition
HGATEx and LGATEx open
VCCDR=BOOTx=12V
LGATEx open; VCCDR=12V
HGATEx open; PHASEx to
PGND; VCC=BOOTx=12V
VCC Rising; VCCDR=5V
VCC Falling; VCCDR=5V
VCCDR Rising
VCC=12V
VCCDR Falling
VCC=12V
OSC = OPEN
OSC = OPEN; Tj=0°C to 125°C
ISINK=5mA
L6712, OSC = OPEN: IDROOP=0
OSC = OPEN; IDROOP=70µA
L6712A, OSC = OPEN
OVP Active
Min.
7.5
1.5
0.5
8.2
6.5
4.2
4.0
135
127
0.5
72
30
85
4.75
Typ.
10
3
1
9.2
7.5
4.4
4.2
150
80
40
90
3
5.0
Max. Unit
12.5 mA
4
mA
1.5
mA
10.2
V
8.5
V
4.6
V
4.4
V
165
kHz
178
kHz
V
-
%
-
%
%
V
5.25
V
3/29
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