参数资料
型号: MAX1802EHJ+
厂商: Maxim Integrated Products
文件页数: 7/28页
文件大小: 0K
描述: IC PWR SPLY STEP DOWN 32-TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 360
应用: 控制器,数字式相机
输入电压: 2.5 V ~ 11 V
输出数: 5
输出电压: 1.25 V ~ 5.5 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-TQFP
供应商设备封装: 32-TQFP(5x5)
包装: 托盘
Digital Camera Step-Down
Power Supply
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V VDDM = 6V, V VDDC = 3V, PGNDM = PGND = GND, DCON1 = REF, V ONM = 3V, V ONC = V ON1 = V DCON2 =
V DCON3 = 0, T A = -40 ° C to +85 ° C , unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUTS (ONM, ONC, ON1)
Input Low Level
V IL
0.4
V
Input High Level
Input Leakage Current
V IH
ONM
ONC, ON1
ONM: V IN = 0 or 11V;
ONC, ON1: V IN = 0 or 5V
1.8
1.6
1
V
μ A
MAIN DC-DC CONVERTER
Main Output Voltage Adjust Range
Main Idle Mode Threshold
V OUT
V OSC = 0.625V, measured between
VDDM and LXM
2.7
2
5.5
35
V
mV
Main Current-Sense Amplifier
Voltage Gain
A VCSM
Measured between VDDM and LXM
8.4
10.2
V/V
Main Zero-Crossing Threshold
Main Slope Compensation Gain
A VSWM
Measured between LXM and PGNDM
-20
0.16
-8
0.24
mV
V/V
MAIN ERROR AMPLIFIER
FBM Regulation Voltage
Unity gain configuration, FBM = COMPM
1.230
1.265
V
FBM to COMPM
Transconductance
G EA
Unity gain configuration, FBM = COMPM,
-5 μ A < I LOAD < 5 μ A
70
160
μ S
FBM Input Leakage Current
COMPM Minimum Output
Voltage
V FBM = 1.35V
V FBM = 1.35V, COMPM open
0.3
100
nA
V
COMPM Maximum Output
Voltage
V COMPM(MAX) V FBM = 1.15V, COMPM open
2.00
2.27
V
MAIN DRIVERS (DHM, DLM)
Output Low Voltage
Output High Voltage
Driver Resistance
I SINK = 10mA
I SOURCE = 10mA
I DHM = 10mA, I DLM = 10mA
V VDDM -
0.11
0.11
11
V
V
?
CORE DC-DC CONVERTER (V ON C = 3V)
Core Output Voltage Adjust
Range
Core Idle Mode Threshold
Core Current-Sense Amplifier
Transresistance
Core Slope Compensation Gain
V OUT
R CSC
A VSWC
V OSC = 0.625V
1.25
40
0.7
0.16
5.5
360
1.3
0.24
V
mA
V/A
V/V
CORE ERROR AMPLIFIER (V ONC = 3V)
FBC Regulation Voltage
Unity gain configuration, FBC = COMPC
1.230
1.265
V
FBC to COMPC
Transconductance
G EA
Unity gain configuration, FBC = COMPC,
-5 μ A < I LOAD < 5 μ A
70
160
μ S
_______________________________________________________________________________________
7
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