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L5965 数据表(PDF) 9 Page - STMicroelectronics

部件名 L5965
功能描述  Power management for automotive vision and radar systems
PDF  73 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5965 数据表(HTML) 9 Page - STMicroelectronics

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Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Power on reset
VPOR_R
VBAT1 threshold
VBAT1 rising
3
3.4
3.8
V
VPOR_F
VBAT1 threshold
VBAT1 falling
2.8
3.2
3.6
V
Oscillator
fosc
Oscillator frequency
-
4.08
4.8
5.52
MHz
fIN
Input frequency at SYNCIN pin
-
1.8
-
2.76
MHz
VHSYNC
SYNCIN high threshold
-
2.1
-
-
V
VLSYNC
SYNCIN low threshold
-
-
-
1
V
VREG
VVREG
BUCK1 gate driver inner
regulated supply
IVREG= 0 mA~50 mA, EXTSUP = 6.3~12 V
5.8
6.0
6.2
V
VEXTSUP_TH
Switch over threshold
IVREG = 5 mA~50 mA, EXTSUP rising, in
ACTIVE mode
-
4.7
-
V
VEXTSUP_HYS
Switch over hysteresis
–
-
0.2
-
V
VDROP_VREG
Drop out voltage at VREG
Iload = 50 mA, supplied by VBAT1
-
-
0.25
V
Iload = 50 mA, supplied by EXTSUP
-
-
0.4
V
ILIM_REG
VREG current limitation
Supplied by VBAT1/EXTSUP
60
85
-
mA
CVREG
Capacitive load
–
-
2.2
-
µF
VREG_OK
VREG under voltage threshold
VREG rising
-
4
-
V
VREG_OK
VREG under voltage threshold
Hysteresis
-
0.26
-
V
BUCK1
VIN_BUCK1
Input voltage range
–
4
-
32
V
VOUT_BUCK1
Output voltage
(> 200 mA, static)
OTP = 000; VIN_BUCK1 > 6.2 V
-2.5%
5.0
+2.5%
V
OTP = 001; VIN_BUCK1 > 4.5 V
3.8
V
OTP = 010
3.3
V
OTP = 011
1.8
V
OTP = 100
1.2
V
OTP = 101
1.1
V
OTP = 110
1.0
V
OTP = 111
0.8
V
Vsense
Cycle by cycle current limitation
sense voltage
-
-
80
-
mV
FSW_BUCK1
Switching frequency
-
340
400
460
kHz
Fspread_BUCK1
Spread spectrum range
Fsw = 400 kHz
-20
-
20
%
tprogramming_dead_BUCK1
Dead time (Blanktime: non-
overlap time plus programming
time)
SPI = 000 default
-
50
-
ns
SPI = 001
-
40
-
ns
SPI = 010
-
30
-
ns
SPI = 011
-
0
-
ns
SPI = 100
-
60
-
ns
SPI = 101
-
70
-
ns
SPI = 110
-
100
-
ns
L5965
Electrical characteristics
DS12567 - Rev 3
page 9/73



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