参数资料
型号: MAX5068EAUE+T
厂商: Maxim Integrated Products
文件页数: 3/20页
文件大小: 0K
描述: IC REG CTRLR FLYBK ISO 16-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1.25MHz
占空比: 75%
电源电压: 10.8 V ~ 24 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
包装: 带卷 (TR)
High-Frequency, Current-Mode PWM Controller
with Accurate Programmable Oscillator
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +12V for the MAX5068B/E/F; V IN = +23.6V for the MAX5068A/C/D at startup, then reduces to +12V; C IN = C REG5 = 0.1μF;
C VCC = 1μF; R RT = 100k ? ; NDRV = floating; T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
CS Input Bias Current
SYMBOL
I B_CS
V CS = 0V
CONDITIONS
MIN
0
TYP
MAX
+2
UNITS
μA
CS Blanking Time
Propagation Delay from
Comparator Input to NDRV
t CS_BLANK
50mV overdrive
70
40
ns
ns
IN CLAMP VOLTAGE
IN Clamp Voltage
V IN_CLAMP
V IN sinking 2mA (Note 2)
24.0
26.0
29.0
V
ERROR AMPLIFIER (FB, COMP)
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
FB Input Offset Voltage
A V
BW
PM
V OS_FB
R COMP = 100k ? to AGND
R COMP = 100k ? to AGND,
C LOAD = 100pF to AGND
R COMP = 100k ? to AGND,
C LOAD = 100pF to AGND
80
5
65
3
dB
MHz
degrees
mV
COMP Clamp Voltage
Error-Amplifier Output Current
V COMP
I COMP
High
Low
Sinking or sourcing
2.6
0.4
0.5
3.8
1.1
V
mA
Reference Voltage
Input Bias Current
V REF
I B_EA
+25°C ≤ T A ≤ +125°C (Note 3)
-40°C ≤ T A ≤ +125°C
1.215
1.205
1.230
1.230
100
1.245
1.242
300
V
nA
COMP Short-Circuit Current
I COMP_SC
12
mA
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
Thermal Hysteresis
T SD
T HYST
+170
+25
°C
°C
OSCILLATOR SYNC INPUT (MAX5068A/B/C/E Only)
SYNC High-Level Voltage
SYNC Low-Level Voltage
SYNC Input Bias Current
V IH_SYNC
V IL_SYNC
I B_SYNC
2.4
10
0.4
V
V
nA
Maximum SYNC Frequency
SYNC High-Level Pulse Width
SYNC Low-Level Pulse Width
f SYNC
t SYNC_HI
t SYNC_LO
f OSC = 2.5MHz (Note 4)
3.125
30
30
MHz
ns
ns
DIGITAL SOFT-START
Soft-Start Duration
Reference-Voltage Step
Reference-Voltage Steps During
Soft-Start
t SS
V STEP
(Note 5)
2047
9.7
127
cycles
mV
steps
OSCILLATOR
Internal Oscillator Frequency
Range
f OSC
f OSC = (10 11 / R RT )
50
2500
kHz
_______________________________________________________________________________________
3
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