参数资料
型号: MAX16948AGTE/V+T
厂商: Maxim Integrated Products
文件页数: 4/15页
文件大小: 0K
描述: IC LDO/SWITCH ADJ DUAL 16TQFN
标准包装: 2,500
应用: 汽车系统,远程电源
电流 - 电源: 2.1mA
电源电压: 4.5 V ~ 28 V
工作温度: -40°C ~ 105°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
MAX16948
Automotive Dual Remote Antenna
Current-Sense LDO/Switch
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 14V, T A = T J = -40 N C to +105 N C, unless otherwise noted. Typical values are at T A = T J = +25 N C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FAILURE DETECTION
LIM1 and LIM2 Current-Limit
Threshold Voltage
IN Overvoltage Lockout
Threshold (Rising)
IN Overvoltage Lockout
Threshold (Falling)
V LIM1/LIM2,TH
V OVLO,R
V OVLO,F
Voltage on LIM1 and LIM2 for which
output current is limited
V IN rising
V IN falling
2.375
19
18.5
2.5
21
2.625
23
V
V
V
IN Overvoltage Lockout
Hysteresis
V OVLO,H
600
mV
Short-to-BAT Threshold in Off
State
Reverse Current Detection
Level
Reverse Current (Short-to-BAT)
Shutdown Delay
V S2B
I REVCUR
t PD-RC
V OUT1/OUT2 - V IN , checked during turn-
on sequence
Power FET on (SW or LDO mode)
Delay to shutdown the switch or LDO
after drop over R ON becomes negative,
I OUT1/OUT2 = -200mA (typ), T A = +25 N C
-500
-100
-80
-50
4.16
+110
-1
20
mV
mA
F s
Blanking time for reverse current and
Reverse Current Blanking Time
t BLK-RC
FB1/FB2 out of range after rising edge
of SHDN1 , SHDN2 , or current limiting
16
ms
event is over
Feedback Voltage Out of
Range
Feedback Voltage Out-of-
Range Hysteresis
V FBERR
V FBERR-HYS
LDO mode, internal pulldown resistor
switched on, FB rising
LDO mode, internal pulldown resistor
switched on (Note 3)
1.12
1.15
39
1.28
100
V
mV
OVERTEMPERATURE PROTECTION (Note 3)
Thermal Shutdown
Thermal Shutdown Hysteresis
T SHDN
T SHDN-HYS
160
15
N C
N C
SUPPORTING CIRCUITS, INTERFACE SIGNALS
Internal Voltage Regulator
V REG
T A = +25 N C, I REG = 0mA,
V IN = 4.5V to 18V
T A = +25 N C, I REG = 0mA,
V IN = 6.5V to 18V
4
4.5
5
5
5.5
5.5
V
V
Internal Voltage Regulator
Current Limit
ERR1 and ERR2 Output-
Voltage Low
I REG
V OL
(Note 4)
Sinking current = 10mA
15
0.4
mA
V
ERR1 and ERR2 Open-Drain
Leakage Current
SHDN1 and SHDN2 High
SHDN1 and SHDN2 Low
Maxim Integrated
V SHDN1 / SHDN2 ,HI
V SHDN1 / SHDN2 ,LO
ERR1 and ERR2 not asserted, V ERR1 /
ERR2 = 5V, T A = +25 N C
2.8
1
0.8
F A
V
V
4
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