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L5965 数据表(PDF) 10 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) 10 Page - STMicroelectronics

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Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
tprogramming_dead_BUCK1
Dead time (Blanktime: non-
overlap time plus programming
time)
SPI = 111
-
200
-
ns
ton_min
-
-
-
208
-
ns
BUCK1 GATE Driver
Ron HS1
Ron @ Buck1_curr_max
SPI = '0' (1.0 A)
-
1.75
-
Ω
SPI = '1' (2.0 A)
-
0.85
-
Ω
Ron LS1
Ron @ Buck1_curr_max
SPI = '0' (1.0 A)
-
3.20
-
Ω
SPI = '1' (2.0 A)
-
1.60
-
Ω
VCLAMP_VGS_HS
Clamp protection for Vgs of
external transistor
-
9
-
11
V
VCLAMP_VGS_LS
Clamp protection for Vgs of
external transistor
-
9
-
11
V
tSOFTSTART_BUCK1
Soft start time when start up, Vref
from 0 V to 1 V
SPI = 00
0.3
0.42
0.55
ms
SPI = 01
0.7
1
1.3
ms
SPI = 10
1.6
2
2.4
ms
BUCK2
VIN_BUCK2
Input voltage range
-
3.3
-
32
V
VOUT_BUCK2
Output voltage (no load, static)
OTP = 000; VIN_BUCK2 > 6.2 V
-2.5%
5.0
+2.5%
V
OTP = 001; VIN_BUCK2 > 4.5 V
3.6
V
OTP = 010
3.3
V
OTP = 011
1.5
V
OTP = 100
1.35
V
OTP = 101
1.2
V
OTP = 110
1.1
V
OTP = 111
1.0
V
ton_min
Min Ton internal FET
-
-
100
-
ns
FSW
Free running frequency
OTP = 0
0.34
0.4
0.46
MHz
OTP = 1
2.04
2.4
2.76
MHz
∆VBUCK2/VBUCK2(4)
Undershoot &overshoot
Load = 0.3 A to 1.8 A, ∆t = 10 µs, VIN = 5 V
-5
-
5
%
∆VLINER-LOADR_VBUCK2
Static line + load regulation
VIN = 6 V to 32 V, VOUT = 5 V
ILoad = 0.3 A to 1.8 A
-
-0.45
-
%
ILIMIT
Peak switching current limitation
OTP = 0
1.35
1.8
2.3
A
OTP = 1
2.6
3.4
4.2
A
RonHS
High side switch on resistance
-
-
120
190
mΩ
RonLS
Low side switch on resistance
-
-
110
190
mΩ
ƞ(4)
Efficiency
FSW =400 kHz, VIN=14 V, VOUT = 5 V/3.3
V,
Iload = 2 A
-
86
-
%
FSW = 2.4 MHz, VIN = 5 V, VOUT = 3.3 V,
Iload = 1 A
-
88
-
%
tSOFTSTART_BUCK2
Soft start time when start up, Vref
from 0 V to 1 V
SPI = 00 default
0.35
0.45
0.5
ms
SPI = 01
0.8
1.1
1.4
ms
L5965
Electrical characteristics
DS12567 - Rev 3
page 10/73



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