Storage Temperature Range............................. -65°C to +160°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow).......................................+260°C
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. Junction temperature greater than +125°C degrades operating lifetimes.
Package Thermal Characteristics
(Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (θ
JA
) .......67.3°C/W
Junction-to-Case Thermal Resistance (θ
JC
) ............18.2°C/W
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.
Electrical Characteristics
(V
IN
= 24V, V
GND
= V
PGND
= 0V, C
VIN
= C
VCC
= 1μF, V
EN
= 1.5V, C
SS
= 3300pF, V
FB
= 0.98 x V
OUT
, LX = unconnected,
RESET
=
unconnected. T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C. All voltages are referenced to GND,
unless otherwise noted.) (Note 2)
PARAMETER
INPUT SUPPLY (V
IN
)
Input Voltage Range
V
IN
I
IN-SH
Input Supply Current
V
EN
= 0V, shutdown mode
Normal switching MAX17501E/F/G
mode, no load
MAX17501H
V
EN
rising
V
EN
falling
V
EN
falling, true shutdown
V
EN
= V
IN
= 60V, T
A
= +25°C
6V < V
IN
< 12V, 0mA < I
VCC
< 10mA,
12V < V
IN
< 60V, 0mA < I
VCC
< 2mA
V
CC
= 4.3V, V
IN
= 12V
V
IN
= 4.5V, I
VCC
= 5mA
V
CC
rising
V
CC
falling
1.194
1.114
I
IN-HIBERNATE
V
FB
= 1.03 x V
OUT
, MAX17501A/B
I
IN-SW
ENABLE/UVLO (EN/UVLO)
V
ENR
EN Threshold
EN Input Leakage Current
LDO
V
CC
Output Voltage Range
V
CC
Current Limit
V
CC
Dropout
V
CC
UVLO
V
CC
I
VCC-MAX
V
CC-DO
V
CC-UVR
V
CC-UVF
4.65
15
4.1
3.85
3.55
4
3.7
4.15
3.85
5
40
5.35
80
V
mA
V
V
V
ENF
V
EN-TRUESD
I
EN
1.218
1.135
0.7
8
200
nA
1.236
1.156
V
4.5
0.9
90
4.75
2.5
60
3.5
145
6.75
3.6
V
µA
mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
www.maximintegrated.com
Maxim Integrated
│
2
MAX17501
60V, 500mA, Ultra-Small, High-Efficiency,
Synchronous Step-Down DC-DC Converter
Electrical Characteristics (continued)
(V
IN
= 24V, V
GND
= V
PGND
= 0V, C
VIN
= C
VCC
= 1μF, V
EN
= 1.5V, C
SS
= 3300pF, V
FB
= 0.98 x V
OUT
, LX = unconnected,
RESET
=
unconnected. T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C. All voltages are referenced to GND,
unless otherwise noted.) (Note 2)
PARAMETER
POWER MOSFETs
High-Side pMOS On-Resistance
R
DS-ONH
I
LX
= 0.5A
(sourcing)
I
LX
= 0.5A
(sinking)
T
A
= +25°C
T
A
= T
J
= +125°C
(Note 3)
T
A
= +25°C
T
A
= T
J
= +125°C
(Note 3)
0.2
0.55
0.85
1.2
0.35
0.47
1
Ω
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Low-Side nMOS On-Resistance
R
DS-ONL
LX Leakage Current
SOFT-START (SS)
Charging Current
FEEDBACK (FB/VO)
FB Regulation Voltage
I
LX_LKG
V
EN
= 0V, T
A
= +25°C,
V
LX
= (V
PGND
+ 1V) to (V
IN
- 1V)
V
SS
= 0.5V
MAX17501G/H
MAX17501A/E,
V
FB
= 3.3V
4.7
0.884
6.8
6.8
5
0.9
12
12
µA
I
SS
V
FB_REG
5.3
0.916
17
µA
V
FB Input Bias Current
I
FB
T
A
= +25NC
MAX17501B/F,
V
FB
= 5V
MAX17501G/H,
V
FB
= 0.9V
µA
17
100
nA
OUTPUT VOLTAGE (V
OUT
)
MAX17501A
Output Voltage Accuracy
V
OUT
MAX17501B
MAX17501E
MAX17501F
TRANSCONDUCTANCE AMPLIFIER (COMP)
Transconductance
COMP Source Current
COMP Sink Current
Current-Sense Transresistance
CURRENT LIMIT
Peak Current-Limit Threshold
Runaway Current-Limit Threshold
Sink Current-Limit Threshold
PFM Current-Limit Threshold
I
PEAK-LIMIT
I
RUNAWAY-
LIMIT
3.248
4.922
3.248
4.922
510
19
19
0.9
0.64
0.65
3.380
5.121
3.3
5
590
32
32
1
0.76
0.78
0.03
3.448
5.225
3.352
5.08
650
55
55
1.1
0.86
0.905
µS
µA
µA
V/A
A
A
A
A
V
G
M
I
COMP_SRC
I
COMP_SINK
R
CS
I
COMP
= ±2.5µA, MAX17501G/H
MAX17501G/H
MAX17501G/H
MAX17501G/H
I
SINK-LIMIT
I
PFM
MAX17501A/B
MAX17501E/F/G/H
MAX17501A/B
0.3
0.35
0.125
0.4
www.maximintegrated.com
Maxim Integrated
│
3
MAX17501
60V, 500mA, Ultra-Small, High-Efficiency,
Synchronous Step-Down DC-DC Converter
Electrical Characteristics (continued)
(V
IN
= 24V, V
GND
= V
PGND
= 0V, C
VIN
= C
VCC
= 1μF, V
EN
= 1.5V, C
SS
= 3300pF, V
FB
= 0.98 x V
OUT
, LX = unconnected,
RESET
=
unconnected. T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C. All voltages are referenced to GND,
unless otherwise noted.) (Note 2)
PARAMETER
TIMINGS
Switching Frequency
Events to Hiccup after Crossing
Runaway Current Limit
V
OUT
Undervoltage Trip Level to
Cause Hiccup
HICCUP Timeout
Minimum On-Time
Maximum Duty Cycle
LX Dead Time
RESET
RESET
Output Level Low
RESET
Output Leakage
Current High
V
OUT
Threshold for
RESET
Falling
V
OUT
Threshold for
RESET
Rising
RESET
Delay After FB Reaches
95% Regulation
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
Temperature rising
165
10
°C
°C
V
OUT-OKF
V
OUT-OKR
I
RESET
= 1mA
V
FB
= 1.01 x V
FB-REG
, T
A
= +25°C
V
FB
falling
V
FB
rising
V
FB
rising
90.5
93.5
92.5
95.5
1024
0.02
0.45
94.5
97.5
V
µA
%
%
Cycles
t
ON_MIN
D
MAX
V
FB
= 0.98 x MAX17501A/B/E/F/G
V
FB-REG
MAX17501H
92
96.5
V
OUT-HICF
V
SS
> 0.95V (soft-start is done)
69.14
f
SW
V
FB
> V
OUT-
MAX17501A/B/E/F/G
MAX17501H
HICF
V
FB
< V
OUT-HICF
560
280
280
600
300
300
1
71.14
32,768
75
94
97.5
5
120
96
98.5
73.14
640
320
320
Event
%
Cycles
ns
%
ns
kHz
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 2: All limits are 100% tested at +25°C. Limits over the operating temperature range and relevant supply voltage range are
guaranteed by design and characterization.
Note 3: Guaranteed by design, not production tested.
www.maximintegrated.com
Maxim Integrated
│
4
MAX17501
60V, 500mA, Ultra-Small, High-Efficiency,
Synchronous Step-Down DC-DC Converter
Typical Operating Characteristics
(V
IN
= 24V, V
GND
= V
PGND
= 0V, C
VIN
= C
VCC
= 1μF, V
EN
= 1.5V, C
SS
= 3300pF, V
FB
= 0.98 x V
OUT
, LX = unconnected,
RESET
=
unconnected, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
控制器局部网CAN(Controller Area Network)属于现场总线的一种，是一种有效支持分布式控制或实时控制的串行通信网络，被公认为是最有前途的现场总线之一。 在工业控制系统中，电动执行器是电动单元组合仪表中一个很重要的执行单元。它由控制电路和执行机构两个在电路上完全独立的部分组成，可接收来自调节器的电控信号，将其线性地转换成机械转角或直线位移，用来操纵风门、挡板、阀门等...[详细]
随着阅读器与标签价格的降低和全球市场的扩大，射频标识 RFID(以下简称RFID)的应用与日俱增。标签既可由阅读器供电(无源标签)，也可以由标签的板上电源供电(半有源标签和有源标签)。由于亚微型无源 CMOS 标签的成本降低，库存和其他应用迅速增加。一些评估表明，随着无源标签的价格持续下降，几乎每一个售出产品的内部都将有一个 RFID 标签。由于无源 RFID 标签的重要性及其独特的工程实现...[详细]
能源基础设施
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
