参数资料
型号: MAX1964TEEE+
厂商: Maxim Integrated Products
文件页数: 3/30页
文件大小: 0K
描述: IC POWER CTRLR/SEQUENCER 16QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
应用: 电源控制器,序列发生器
输入电压: 4.5 V ~ 28 V
电流 - 电源: 1.25mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-QSOP
包装: 管件
Tracking/Sequencing Triple/Quintuple
Power-Supply Controllers
ELECTRICAL CHARACTERISTICS
(V IN = 12V, ILIM = FB = GND, V BST - V LX = 5V, T A = 0 ° C to +85 ° C . Typical values are at T A = +25 ° C, unless otherwise noted.)
PARAMETER
Maximum Duty Cycle
SYMBOL
D MAX
CONDITIONS
MIN
77
TYP
82
MAX
90
UNITS
%
Soft-Start Period
Soft-Start Step Size
FB Power-Up Sequence
Threshold
DH Output Low Voltage
DH Output High Voltage
DL Output Low Voltage
DL Output High Voltage
t SOFT
MAX1964, FB rising, B2 turns on
I SINK = 10mA, measured from DH to LX
I SOURCE = 10mA, measured from BST to DH
I SINK = 10mA, measured from DL to GND
I SOURCE = 10mA, measured from DL to GND
40
VL - 0.1
1024
V REF /64
1.145
40
20
1/f OSC
V
V
mV
mV
mV
V
DH On-Resistance
DL On-Resistance
Output Drive Current
LX, BST Leakage Current
High (DH to BST) and low (DH to LX)
High (DL to VL)
Low (DL to GND)
Sourcing or sinking, V DH or V DL = VL/2
V BST = V LX = V IN = 28V, V FB = 1.5V
1.5
4.3
0.7
0.5
0.04
4
10
2
10
?
?
A
μ A
POSITIVE ANALOG GAIN BLOCKS
FB2, FB3, FB4 Regulation
Voltage
FB2 Power-Up Sequence
Threshold
V B2 = V B3 = V B4 = 5V,
I B2 = I B3 = I B4 = 1mA (sink)
MAX1964, FB2 rising, B3 turns on
1.226
1.24
1.145
1.257
V
V
FB2, FB3, FB4 to B_
Transconductance Error
Feedback Input Leakage
Current
? V FB _
I FB _
V B2 = V B3 = V B4 = 5V, I B2 = I B3 = I B4 =
0.5mA to 5mA (sink)
V FB2 = V FB3 = V FB4 = 1.5V
13
0.01
22
100
mV
nA
Driver Sink Current
I B _
V FB2 = V FB3 =
V FB4 = 1.188V
V B2 = V B3 = V B4 = 2.5V
V B2 = V B3 = V B4 = 4.0V
10
21
24
mA
NEGATIVE ANALOG GAIN BLOCK
FB5 Regulation Voltage
V B5 = V OUT - 2V, V OUT = 3.5V, I B5 = 1mA
(source)
-20
-5
+10
mV
FB5 to B5 Transconductance Error
Feedback Input Leakage Current
? V FB5
I FB5
V B5 = 0, I B5 = 0.5mA to 5mA (source)
V FB5 = -100mV
-13
0.01
-20
100
mV
nA
Driver Source Current
I B5
V FB5 = 200mV, V B5 = V OUT - 2.0V, V OUT =
3.5V
10
25
mA
POWER GOOD (POK)
OUT Trip Level (Preset Mode)
FB Trip Level (Adjustable Mode)
FB2, FB3, FB4 Trip Level
FB5 Trip Level
POK Output Low Level
POK Output High Leakage
FB = GND, falling edge, 3% hysteresis (typ)
Falling edge, 3% hysteresis (typ)
Falling edge, 3% hysteresis (typ)
Rising edge, 35mV hysteresis (typ)
I SINK = 1mA
V POK = 5V
2.88
1.070
1.070
368
3.0
1.114
1.114
530
3.12
1.159
1.159
632
0.4
1
V
V
V
mV
V
μ A
_______________________________________________________________________________________
3
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