L5953 Просмотр технического описания (PDF) - STMicroelectronics
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L5953 Datasheet PDF : 31 Pages
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L5953
Block diagram and electrical specifications
Figure 2. PIN connections
FGND
1
S2
2
S1
3
W2
4
W1
5
RES
6
CT
7
D
8
C
9
Q
10
S
11
DGND
12
IRQ
13
HSD2
14
VDD-LIN
15
N.C.
16
HSD1
17
SWGND
18
36
ADJ
35
VSTBY
34
VSPI
33
STCAP
32
FB
31
COMP
30
FBLR
29
VIN
28
VLR
27
SYNC
26
STRAP
25
GATEOUT
24
GATEIN
23
VSW
22
GND
21
N.C.
20
DRAINOUT
19
VDD-SW
D02AU1345A
Table 4. PIN function
Pin number
Pin name
1
FGND
2
S2
3
S1
4
W2
5
W1
6
RES
7
CT
8
D
9
C
10
Q
11
S
12
DGND
13
IRQ
14
HSD2
15
VDD-LIN
16
N.C.
17
HSD1
18
SWGND
19
VDD-SW
20
DRAINOUT
Function
Analog ground
Input voltage for LVW2
Input voltage for LVW1
LVW2 output
LVW1 output
Reset
Timing capacitor
SPI serial input
SPI clock
SPI serial output
SPI chip select
SPI ground
Interrupt
HSD2 output
Battery
Not connected
HSD1 output
Switching ground
PWM battery
Drain of the external MOS
7/31
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