参数资料
型号: MAX1980
厂商: Maxim Integrated Products, Inc.
元件分类: DC/DC变换器
英文描述: Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter
中文描述: Quick-PWM从控制器,带有驱动禁止功能,用于多相DC-DC转换器
文件页数: 3/33页
文件大小: 1153K
代理商: MAX1980
M
Quick-PWM Slave Controller with
Driver Disable for Multiphase DC-DC Converter
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
CC
= V
DD
= 5V, V
OUT
= V
COMP
= 1.2V, V
CM+
= V
CM-
= V
CS+
= V
CS-
= 1.2V,
DD
= V
CC
,
T
A
= 0
°
C to
+85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT SENSING
On-Time Adjustment Range
COMP Output Current
0.42V < V
COMP
< 2.8V, V
OUT
0.7V
Sink and source
-40
30
+40
%
μA
I
COMP
Current-Balance Offset
(V
CM+
- V
CM-
) - (V
CS+
- V
CS-
), I
COMP
= 0,
-100mV
(V
CM+
- V
CM-
)
+100mV
-1.25
+1.25
mV
Current-Balance
Transconductance
(V
CM+
- V
CM-
) - (V
CS+
- V
CS-
) = ±25mV
1.2
mS
Current-Sense, Common-Mode
Range
CM+, CM-, CS+, CS-
-0.2
+2.0
V
Current-Sense Input Current
CM+, CM-, CS+, CS-
-1
1
μA
V
ILIM
= 0.5V
V
ILIM
= 1V
V
ILIM
= 0.5V
V
ILIM
= 1V
47.5
97.5
-80
-160
0.2
-100
50
100
-75
-150
52.5
102.5
-70
-140
0.3
100
Positive Current-Limit Threshold
V
C_LIM
V
CM+
- V
CM-
and
V
CS+
- V
CS-
mV
Negative Current-Limit
Threshold
V
CS+
- V
CS-
mV
ILIM Standby Threshold Voltage
ILIM Input Current
LIMIT Propagation Delay
LIMIT Output Low Voltage
LIMIT Leakage Current
FAULT PROTECTION
V
nA
μs
V
μA
t
LIMIT
V
OL(LIMIT)
I
LIMIT
Falling edge, 3mV over trip threshold
I
SINK
= 1mA
LIMIT forced to 5.5V
1.5
0.1
1
< 0.01
V
CC
Undervoltage Lockout
Threshold
Rising edge, hysteresis = 20mV, switching
disabled below this level
3.45
3.85
V
Thermal-Shutdown Threshold
GATE DRIVERS
Rising, hysteresis = 15
°
C (typ)
160
°
C
DH Gate-Driver On-Resistance
(Note 3)
R
ON D H
V
BST
- V
LX
forced to 5V
1.0
4.5
High state (pullup)
Low state (pulldown)
1.0
0.4
4.5
2.0
DL Gate-Driver On-Resistance
(Note 3)
R
ON(DL)
DH Gate-Driver Source/Sink
Current
I
DH
DH forced to 2.5V, V
BST
- V
LX
forced to 5V
1.3
A
DL Gate-Driver Sink Current
DL Gate-Driver Source Current
I
DL
I
DL
DL forced to 2.5V
DL forced to 2.5V
DL rising
DH rising
DD
falling (Note 4)
DD
rising (Note 4)
4.0
1.3
35
26
225
65
A
A
Dead Time
ns
1000
1000
Driver Disable Delay
t
DD
ns
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