Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(V
IN
= 14V, I
OUT
= 1mA, C
IN
= 47µF (low ESR), C
OUT
= 15µF, V
EN
= 2.4V, 10kΩ from
RESET
to OUT, T
A
= T
J
= -40°C to +125°C,
unless otherwise noted. Typical specifications are at T
A
= +25°C.) (Note 2)
PARAMETER
Input Voltage Range
Supply Current
Shutdown Supply Current
REGULATOR
Guaranteed Output Current
I
OUT
V
IN
= 6.5V, V
OUT
= 5.0V
SET = GND,
5V Version
Output Voltage (Note 3)
V
OUT
6.5V ≤ V
IN
≤ 25V,
5mA ≤ I
OUT
≤ 250mA
6.5V ≤ V
IN
≤ 45V,
5mA ≤ I
OUT
≤ 100mA
6.5V ≤ V
IN
≤ 25V,
5mA ≤ I
OUT
≤ 250mA
6.5V ≤ V
IN
≤ 45V,
5mA ≤ I
OUT
≤ 100mA
250
4.85
4.85
3.217
3.217
2.5
0.9
400
-1
-0.5
2.4
0.4
+1
+0.8
5
5
3.3
3.3
5.15
5.15
3.392
3.392
11.0
2.2
V
µs
mV/V
V
V
mA
SYMBOL
V
IN
I
Q
I
SHDN
CONDITIONS
V
IN
≥ V
OUT
+ 1.5V
Measured at GND,
SET = GND
V
EN
≤ 0.4V
I
OUT
= 0
I
OUT
= 250mA
MIN
6.5
70
1250
13
21
TYP
MAX
45
115
UNITS
V
µA
µA
SET = GND,
3.3V version
I
OUT
= 5mA, adjustable range
Dropout Voltage (Note 4)
Startup Response
Time (Note 5)
Line Regulation
Enable Voltage
∆V
OUT
/
∆V
IN
V
EN
∆V
DO
I
OUT
= 250mA, V
OUT
= 5V
Rising edge of V
IN
to V
OUT
,
R
L
= 500Ω, SET = GND
6.5V ≤ V
IN
≤ 45V
5V version
3.3V version
V
EN
= high, regulator on
V
EN
= low, regulator off
www.maximintegrated.com
Maxim Integrated
│
2
MAX5086
45V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Electrical Characteristics (continued)
(V
IN
= 14V, I
OUT
= 1mA, C
IN
= 47µF (low ESR), C
OUT
= 15µF, V
EN
= 2.4V, 10kΩ from
RESET
to OUT, T
A
= T
J
= -40°C to +125°C,
unless otherwise noted. Typical specifications are at T
A
= +25°C.) (Note 2)
PARAMETER
Enable Input Current
SET Reference Voltage
SET Input Leakage Current
Load Regulation
Power-Supply Rejection Ratio
Short-Circuit Current (Note 6)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
RESET
Voltage Threshold
RESET
Threshold Hysteresis
RESET
Output Low Voltage
RESET
Output Leakage Current
RESET
Output Minimum
Timeout Period
ENABLE to
RESET
Minimum
Timeout Period
Delay Comparator Threshold
(Rising)
Delay Comparator Threshold
Hysteresis
CT Charge Current
CT Discharge Current
Note
Note
Note
Note
Note
2:
3:
4:
5:
6:
1
SYMBOL
I
EN
V
SET
I
SET
∆V
OUT
/
∆I
OUT
PSRR
I
SC
T
J(SHDN)
∆T
J(SHDN)
V
RESET
V
RHYST
V
RL
I
RH
I
SINK
= 1mA
V
RESET
= 5V
When V
OUT
reaches RESET threshold,
C
CT
= Open
When EN goes high, C
CT
= open
1.196
15
169
1.23
100
2.26
5
4
1.264
89.91
I
OUT
= 1mA to 250mA
I
OUT
= 10mA, f = 100Hz, 500mV
P-P
,
V
OUT
= 5V
V
IN
< 16V
V
EN
= 2.4V
V
EN
= 14V
1.20
-100
CONDITIONS
MIN
TYP
0.38
3.75
1.235
-1.5
0.045
-54
440
175
25
92
2
0.4
1
94.10
1.26
100
0.4
MAX
UNITS
µA
V
nA
Ω
dB
mA
°C
°C
% V
OUT
% V
OUT
V
µA
µs
µs
V
mV
µA
mA
Limits at -40°C are guaranteed by design.
Output voltage is tested using a pulsed load current of less than 50ms duration.
语音作为自然的人机接口，可以使车载导航系统实现更安全、更人性化的操作。通过国内外车载导航系统的功能对比可知，支持语音交互是车载导航系统的一个发展趋势。另外，市场信息服务公司J.D Power and Associates的调研数据也表明，56％的消费者更倾向于选择声控的导航系统。因此，开发车载语音导航系统是很有意义的。目前，国内已经具备开发车载语音导航系统的技术基础，特别是文语转换TTS技术...[详细]
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