参数资料
型号: ADM1041A
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: 10/56页
文件大小: 991K
代理商: ADM1041A
ADM1041A
Parameter
Reverse Voltage Detector Turn-Off Threshold
Reverse Voltage Detector Turn-On Threshold
FD Input Impedance
FS Input Impedance
AC
SENSE
1/AC
SENSE
2 COMPARATOR
Rev. 0 | Page 10 of 56
Min
500
Typ
100
150
200
250
20
30
40
50
20
Max
Unit
mV
mV
mV
mV
mV
mV
mV
mV
Test Conditions/Comments
V
CS
= 2 V for threshold specs
Reg 03h[7:6] = 00. See Table 12.
Reg 03h[7:6] = 01. See Table 12.
Reg 03h[7:6] = 10. See Table 12.
Reg 03h[7:6] = 11. See Table 12.
V
CS
= 2 V for threshold specs
Reg 03h[5:4] = 00. See Table 12.
Reg 03h[5:4] = 01. See Table 12.
Reg 03h[5:4] = 10. See Table 12.
Reg 03h[5:4] = 11. See Table 12.
Reg 12h[2] = 0
Reg 0Dh[3:2] = 00. See Table 22 .
Reg 12h[2] = 1
Reg 0Eh[7:6] = 00. See Table 23.
Min: DAC = 0
Max: DAC = Full Scale
1.10 ≤ V
TRIM
≤ 1.4 V
5 bits, 31 steps
Reg 0Ch[7:3]. See Table 21.
V
ACSENSE
> 1 V, R
THEVENIN
= 909R
200 ≤ V
TRIM
≤ 550 mV. 7 steps
Reg 0Ch[2:0]. See Table 21.
Unless otherwise specified
Force C
CMP
for drop in V
CMP
Reg 11h[2] = 0. See Table 26.
Reg 12h[4:3] = 00. See Table 27.
AC or Bulk Sense
Threshold Voltage
Threshold Adjust Range
1.10
1.25
1.40
V
V
Threshold Trim Step
0.8
10
%
mV
Hysteresis Adjust Range
Hysteresis Trim Step
200550
50
mV
mV
Noise Filter
PULSE-IN
Threshold Voltage
PULSE_OK On Delay
PULSE_OK Off Delay
OSCILLATOR
OCP
OCP Threshold Voltage
2
OCP Shutdown Delay Time (Continuous
Period in Current Limit)
OCP Fast Shutdown Delay Time
0.6
0.8
5
0.3
1
0.525
1
1
0.5
1
1.2
1.2
+5
0.7
ms
V
μs
s
%
V
s
0
2
3
4
100
s
s
s
ms
Reg 12h[4:3] = 01. See Table 27.
Reg 12h[4:3] = 10. See Table 27.
Reg 12h[4:3] = 11. See Table 27.
Reg 11h[2] = 1. See Table 26.
VC
CMP
= 1.5 V
Reg 0Fh[4:2] = 01x or 10x. See Table 24.
2.1 ≤ V
TRIM
≤ 2.45 V
4 bits, 15 steps, Reg 0Bh[7:4].
See Table 20.
V
OTP
= 2 V
MON1, MON2, MON3, MON4
Sense Voltage
Hysteresis
OVP Noise Filter
UVP Noise Filter
OTP (MON5)
Sense Voltage Range
OTP Trim Step
1.21
5
300
2.2
1.25
0.1
24
1.29
25
600
2.45
V
V
μs
μs
V
mV
Hysteresis
100
130
160
μA
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