参数资料
型号: MAX1980ETP+
厂商: Maxim Integrated Products
文件页数: 3/33页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 20-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
系列: Quick-PWM™
PWM 型: 控制器
输出数: 1
频率 - 最大: 550kHz
占空比: 50%
电源电压: 4.5 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 85°C
封装/外壳: 20-WQFN 裸露焊盘
包装: 管件
Quick-PWM Slave Controller with
Driver Disable for Multiphase DC-DC Converter
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
0.42V < V COMP < 2.8V, V OUT ≥ 0.7V
-40
+40
%
COMP Output Current
I COMP
Sink and source
30
μA
Current-Balance Offset
Current-Balance
Transconductance
Current-Sense, Common-Mode
Range
Current-Sense Input Current
(V CM+ - V CM- ) - (V CS+ - V CS- ), I COMP = 0,
-100mV ≤ (V CM+ - V CM- ) ≤ +100mV
(V CM+ - V CM- ) - (V CS+ - V CS- ) = ±25mV
CM+, CM-, CS+, CS-
CM+, CM-, CS+, CS-
-1.25
-0.2
-1
1.2
+1.25
+2.0
1
mV
mS
V
μA
Positive Current-Limit Threshold
Negative Current-Limit
Threshold
V C_LIM
V CM+ - V CM- and
V CS+ - V CS-
V CS+ - V CS-
V ILIM = 0.5V
V ILIM = 1V
V ILIM = 0.5V
V ILIM = 1V
47.5
97.5
-80
-160
50
100
-75
-150
52.5
102.5
-70
-140
mV
mV
ILIM Standby Threshold Voltage
ILIM Input Current
0.2
-100
0.3
100
V
nA
LIMIT Propagation Delay
LIMIT Output Low Voltage
t LIMIT
V OL(LIMIT)
Falling edge, 3mV over trip threshold
I SINK = 1mA
1.5
0.1
μs
V
LIMIT Leakage Current
I LIMIT
LIMIT forced to 5.5V
< 0.01
1
μA
FAULT PROTECTION
V CC Undervoltage Lockout
Threshold
Thermal-Shutdown Threshold
Rising edge, hysteresis = 20mV, switching
disabled below this level
Rising, hysteresis = 15 ° C (typ)
3.45
160
3.85
V
° C
GATE DRIVERS
DH Gate-Driver On-Resistance
(Note 3)
DL Gate-Driver On-Resistance
(Note 3)
DH Gate-Driver Source/Sink
Current
DL Gate-Driver Sink Current
DL Gate-Driver Source Current
Dead Time
Driver Disable Delay
R ON(DH)
R ON(DL)
I DH
I DL
I DL
t DD
V BST - V LX forced to 5V
High state (pullup)
Low state (pulldown)
DH forced to 2.5V, V BST - V LX forced to 5V
DL forced to 2.5V
DL forced to 2.5V
DL rising
DH rising
DD falling (Note 4)
DD rising (Note 4)
1.0
1.0
0.4
1.3
4.0
1.3
35
26
225
65
4.5
4.5
2.0
1000
1000
?
?
A
A
A
ns
ns
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3
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