参数资料
型号: L6740L
厂商: STMICROELECTRONICS
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP48
封装: 7 X 7 MM, 1 MM HEIGHT, HTQFP-48
文件页数: 6/44页
文件大小: 755K
代理商: L6740L
Electrical specifications
L6740L
PSI_L
Voltage low
ISINK = -5 mA
250
mV
Voltage positioning (CORE and NB section)
CORE
Output voltage accuracy
VSEN to VCORE; FBG to GNDCORE
-8
8
mV
NB
NBVSEN to VNB; NBFBG to GNDFB
-10
10
mV
OS, NB_OS
OFFSET bias voltage
IOS = 0 to 250 μA
1.190
1.24
1.290
V
OFFSET current range
0
250
μA
OFFSET - IFB accuracy
IOS = 0 to 250 μA
-15
15
%
DROOP
DROOP accuracy
IDROOP = 0 to 140 μA; OS = OFF
-9
9
μA
NB_DROOP
INB_DROOP = 0 to 35 μA; OS = OFF
-4
4
μA
A0
EA DC gain
100
dB
SR
Slew rate
COMP, NB_COMP to SGND = 10pF
20
V/
μs
PWM outputs (CORE and NB section)
PWMx,
NB_PWM
Output high
I = 1 mA
3
3.6
V
Output low
I = -1 mA
0.2
V
IPWMx
Test current
10
μA
ENDRV,
NB_ENDRV
Output low
I = -5 mA
0.4
V
Protections
OVP
Overvoltage protection
V_FIX mode (V_FIX = SGND);
VSEN, NB_VSEN rising
1.720
1.800
1.880
V
Bias current
7
11
15
μA
OV programmability
ROVP = 180 kΩ
1.730
1.800
1.870
V
UVP
Under voltage protection
VSEN, NB_VSEN falling; wrt Ref.
-470
-400
-330
mV
PWRGOOD
PGOOD threshold
VSEN, NB_VSEN falling; wrt Ref
-300
-250
-200
mV
Voltage low
IPWRGOOD = -4 mA
0.4
V
IVSEN-DISC
VSEN disconnection
Sourced from NB_VSEN; OS = OFF
50
μA
Sunk from VSEN; OS = OFF
30
μA
VFB-DISC
FB disconnection
CORE - VCS- rising, above VSEN
500
600
700
mV
FBG DISC
FBG disconnection
EA NI input wrt VID
350
450
550
mV
OC_PHASE Per-phase OC
CORE section; bias voltage
1.200
1.240
1.280
V
kVOC_AVGTH
Average OC
CORE section
2.430
2.500
2.570
V
kIOC_AVGTH
IDROOP = 0 to 140 μA; OS = OFF
-11
11
μA
IOCTH_NB
OC threshold
NB section
32
37.5
43
μA
Table 5.
Electrical characteristics (continued)
(VCC = 12 V ± 15%, TJ = 0 °C to 70 °C unless otherwise specified).
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
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