MAX5071 データシートの表示（PDF） - Maxim Integrated
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MAX5071 Datasheet PDF : 22 Pages
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High-Performance, Single-Ended, Current-Mode
PWM Controllers
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +15V, RT = 10kΩ, CT = 3.3nF, VVREF = OPEN, CVREF = 0.1µF, COMP = OPEN, VFB = 2V, CS = GND, TA = -40°C to +125°C,
unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
CURRENT-SENSE AMPLIFIER
Gain
Maximum Current-Sense Signal
Power-Supply Rejection Ratio
Input Bias Current
ACS
VCS_MAX
PSRR
ICS
(Notes 3, 4)
MAX5070A/B (Note 3)
VCOMP = 5V, MAX5071_
12V ≤ VCC ≤ 25V
Delay From CS to OUT
tCS_DELAY 50mV overdrive
MOSFET DRIVER
OUT Low-Side On-Resistance
VRDS_ONL
OUT High-Side On-Resistance
VRDS_ONH
ISOURCE (Peak)
ISOURCE
ISINK (Peak)
ISINK
Rise Time
tr
Fall Time
tf
UNDERVOLTAGE LOCKOUT/STARTUP
ISINK = 200mA
ISOURCE = 100mA
COUT = 10nF
COUT = 10nF
COUT = 1nF
COUT = 1nF
Startup Voltage Threshold
VCC_START
Minimum Operating Voltage After
Turn-On
VCC_MIN
Undervoltage-Lockout Hysteresis
PWM
UVLOHYST
Maximum Duty Cycle
DMAX
MAX5070A/MAX5071A
MAX5070B/MAX5071B/MAX5071C
Minimum Duty Cycle
SUPPLY CURRENT
DMIN
Startup Supply Current
Operating Supply Current
Zener Bias Voltage at VCC
THERMAL SHUTDOWN
ISTART
ICC
VZ
VFB = VCS = 0V
ICC = 25mA
Thermal Shutdown
TSHDN
Thermal-Shutdown Hysteresis
THYST
SYNCHRONIZATION (MAX5071A/MAX5071B only, Note 5)
SYNC Frequency Range
fSYNC
SYNC Clock Input High
Threshold
VSYNCINH
SYNC Clock Input Low Threshold VSYNCINL
SYNC Clock Input Minimum
Pulse Width
tPW_SYNCIN
SYNC Clock Output High Level
SYNC Clock Output Low Level
VSYNCOH
VSYNCOL
1mA external pulldown
RSYNC = 5kΩ
MIN TYP MAX UNITS
2.85
3
3.26
V/V
0.95
1
1.05
V
0.84 0.935 1.03
70
dB
-1
-2.5
µA
60
ns
4.5
12
Ω
3.5
9
Ω
2
A
1
A
15
ns
22
ns
15.2
16
16.8
V
9.2
10
10.8
V
6
V
94.5
96
97.5
%
48
49.8
50
0
%
32
65
µA
3
5
mA
24
26.5
V
+150
°C
30
°C
20
1000 kHz
3.5
V
0.8
V
200
ns
4.0
4.7
V
0
0.1
V
_______________________________________________________________________________________ 5
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