参数资料
型号: ADM1041
厂商: Analog Devices, Inc.
英文描述: Secondary-Side Controller with Current Share and Housekeeping
中文描述: 二次侧电流控制器共享和管家
文件页数: 7/64页
文件大小: 1063K
代理商: ADM1041
ADM1041
Parameter
LOCAL VOLTAGE SENSE, V
LS
,
AND FALSE UV CLAMP
Input Voltage Range
3
Stage Gain
False UV Clamp, V
LS
, Input Voltage Nominal,
and Trim Range
Clamp Trim Step
Clamp Trim Step
Rev. A | Page 7 of 64
Min
Typ
Max
Unit
Test Conditions/Comments
See Figure 9.
1.3
2.3
1.3
1.85
V
DD
–2
2.1
V
V
Set by external resistor divider.
At V
LS
= 1.8 V
0.2
3.1
%
mV
V
RANGE
8 bits, 255 steps, Reg 18h[7:0].
See Table 33.
V
RANGE
8 bits, 255 steps Reg 0Ah[7:0].
See Table 33.
V
RANGE
8 bits, 255 steps, Reg 09h[7:0].
See Table 18.
See Figure 14.
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.
See Figure 11.
At I
VCMP
= ±180 μA
At V
VCMP
> 1 V
At V
VCMP
< V
DD
1 V
Reg 17h[7] = 0. See Table 18.
I
SENSE
mode. See Figure 13.
Set by external divider
Reg 16h[5:3] = 000. See Table 31.
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.
V
CM
= 2.0 V
8 bits, 255 steps
Reg 14h[7:0]. See Table 29.
Local Overvoltage
Nominal and Trim Range
OV Trim Step
OV Trim Step
1.9
2.4
0.15
3.7
2.85
V
%
mV
Noise Filter, for OVP Function Only
Local Undervoltage
Nominal and Trim Range
UV Trim Step
UV Trim Step
5
1.3
1.7
0.18
3.1
25
2.1
μs
V
%
mV
Noise Filter, for UVP Function Only
VOLTAGE ERROR AMPLIFIER, V
CMP
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
Transconductance
Source Current
Sink Current
DIFFERENTIAL CURRENT SENSE INPUT,
C
S
, C
S
+
Common-Mode Range
External Divider Tolerance Trim Range
(with respect to input)
External Divider Tolerance Trim Step Size
(with respect to input)
300
1.49
0
1.9
250
250
±100
±0.2
300
10
20
40
1
2.7
600
1.51
40
3.5
μs
V
μV/°C
%
ms
μs
ms
ms
ms
MHz
mA/V
μA
μA
0
5
V
DD
–2
V
mV
10
20
5
10
20
20
39
78
mV
mV
mV
mV
mV
μV
μV
μV
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