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零件编号 | L5952 | ||
描述 | MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR | ||
制造商 | STMicroelectronics | ||
LOGO | |||
1 Page
L5952
MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR
s FIVE REGULATED OUTPUTS
Vo1 5V @500mA
Vo2 8.3V @ 250mA
Vo3 7.7V to 8.5V @250mA (I2C presettable)
Vo4 5V to 7.3V @0.4A (I2C presettable)
Vo5 3.3V to 5V @500mA (I2C presettable)
HSDout RON = 0.6Ω
s I2C ENABLE & OUT PRESET
s ADJUSTABLE BATTERY DETECTION
CIRCUIT
s RESET OUTPUT
s BACKUP FACILITY
s LOW QUIESCENT CONSUMPTION
s HIGH RIPPLE REJECTION
s LOAD DUMP
s OVERCURRENT & SHORT CIRCUIT
PROTECTORS
s THERMAL SHUTDOWN
Flexiwatt 25
ORDERING NUMBER: L5952
DESCRIPTION
The L5952 is a multifunction 5 output voltage regula-
tor plus a High Side Driver primarily developed for car
radio applications.
Three outputs are enabled and set via I2C bus.
Very low stand-by current consumption is achieved
to specifically comply with entertainment and auto-
motive environments.
PIN CONNECTION (Top View)
September 2003
25 VIN
DATA
VOUT6
CLOCK
VOUT5
DIG GND
VOUT4
RESET
ST-CAP
BATT-DET 17
BATT-DET 3
BATT-DET 2
BATT-DET 1
N.C.
HRCAP
BATT-DET 3 IN
BATT-DET 2 IN
N.C.
VOUT3
BATT-DET 1 IN
VOUT2
DELAY CAP
VOUT1
GND
1 TAB
D99AU1055D
1/15
L5952
Figure 3. Timing Chart (typical values)
VIN
DET3
STCAP
VOUT1
8.35
7.3
3ms
8.25
4.65
2.55
DET1
DET2
HRCAP
Note:
Delay Cap = 1µF
HR Cap = 1µF
HR Res = 150KΩ
2.5V
100ms
SW SW
on off
D00AU1176B
SOFTWARE SPECIFICATION
Interface Protocol
The interface protocol comprises:
s A start condition (s)
s A chip address byte,(LSB bit = 0 for write mode)
s A subaddress byte.
s A sequence of data (N-bytes + acknowledge)
A stop condition (P)
CHIP ADDRESS
SUBADDRESS
DATA 1 to DATA n
MSB
LSB
S1000100 0
MSB
LSB MSB
ACK X X X I A3 A2 A1 A0 ACK
DATA
LSB
ACK P
ACK = Acknowledge
S = Start
P = Stop
I = Auto Increment
X = Not used
MAX CLOCK SPEED 500kbits/s
CHIP ADDRESS = 10001000 (88 Hex)
8/15
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页数 | 15 页 | ||
下载 | [ L5952.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
L5950 | MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO | STMicroelectronics |
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L5952 | MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR | STMicroelectronics |
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