参数资料
型号: ADM1041AARQZ
厂商: Analog Devices Inc
文件页数: 7/56页
文件大小: 0K
描述: IC SECONDARY SIDE CTRLR 24QSOP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 56
应用: 次级侧控制器
电源电压: 4.5 V ~ 5.5 V
电流 - 电源: 6mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 管件
配用: ADM1041-EVAL-ND - BOARD EVALUATION ADM1041
ADM1041A
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LOCAL VOLTAGE SENSE, V LS ,
AND FALSE UV CLAMP
Input Voltage Range 3
Stage Gain
2.3
1.3
(V DD – 2)
V
Set by external resistor divider.
At V LS = 1.8 V
False UV Clamp, V LS , Input Voltage Nominal,
1.3
1.85
2.1
V
and Trim Range
Clamp Trim Step
Clamp Trim Step
0.2
3.1
%
mV
V RANGE
8 bits, 255 steps, Reg 18h[7:0].
Local Overvoltage
1.9
2.4
2.85
V
Nominal and Trim Range
OV Trim Step
OV Trim Step
0.15
3.7
%
mV
V RANGE
8 bits, 255 steps Reg 0Ah[7:0].
Noise Filter, for OVP Function Only
5
25
μs
Local Undervoltage
1.3
1.7
2.1
V
Nominal and Trim Range
UV Trim Step
UV Trim Step
0.18
3.1
%
mV
V RANGE
8 bits, 255 steps, Reg 09h[7:0]. See
Noise Filter, for UVP Function Only
VOLTAGE ERROR AMPLIFIER, V CMP
300
600
μs
Reference Voltage V REF_SOFT_START
Temperature Stability 2
Long-Term Voltage Stability 2
Soft-Start Period Range
Set Soft-Start Period
Unity Gain Bandwidth, GBW
1.49
0
±100
±0.2
300
10
20
40
1
1.51
40
V
μV/°C
%
ms
μs
ms
ms
ms
MHz
T A = 25°C
?40°C ≤ T A ≤ 85°C
Over 1,000 hr, T J = 125°C
Ramp is 7 bit, 127 steps
Reg 10h[3:2] = 00. See Table 25.
Reg 10h[3:2] = 01. See Table 25.
Reg 10h[3:2] = 10. See Table 25.
Reg 10h[3:2] = 11. See Table 25.
Transconductance
Source Current
Sink Current
1.9
250
250
2.7
3.5
mA/V
μA
μA
At I VCMP = ±180 μA
At V VCMP > 1 V
At V VCMP < V DD ? 1 V
DIFFERENTIAL CURRENT SENSE INPUT,
C S ?, C S +
Reg 17h[7] = 0. See Table 18.
I SENSE mode. See Figure 13.
Common-Mode Range
External Divider Tolerance Trim Range
0
?5
(V DD – 2)
V
mV
Set by external divider
Reg 16h[5:3] = 000. See Table 31.
(With Respect to Input)
?10
?20
5
10
20
mV
mV
mV
mV
mV
Reg 16h[5:3] = 001. See Table 31.
Reg 16h[5:3] = 010. See Table 31.
Reg 16h[5:3] = 100. See Table 31.
Reg 16h[5:3] = 101. See Table 31.
Reg 16h[5:3] = 110. See Table 31.
External Divider Tolerance Trim Step Size
(With Respect to Input)
20
39
78
μV
μV
μV
V CM = 2.0 V
8 bits, 255 steps
Reg 14h[7:0]. See Table 29.
Rev. 0 | Page 7 of 56
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