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ADM1041
SPECIFICATIONS
T A = –40 to +85°C, V DD = 5 V ± 10%, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SUPPLIES
V DD
I DD , Current Consumption
Peak I DD, during EEPROM Erase Cycle 1, 2
4.5
5.0
6
5.5
10
40
V
mA
mA
UNDERVOLTAGE LOCKOUT, V DD
See Figure 9.
Start-Up Threshold
Stop Threshold
Hysteresis
4
3.7
4.3
4
0.3
4.5
4.2
V
V
V
V REF , 2.5 V REFOUT
Reg 0Fh[4:2] = 111. See Table 24.
Output Voltage
Line Regulation
Load Regulation
Temperature Stability 2
Long-Term Stability 2
Current Limit
2.49
–5
–5
2.50
0
0
±100
±5
10
2.51
+5
+5
20
V
mV
mV
ppm/°C
mV
mA
I REF = 1 mA, T A = 25°C
4.5 V ≤ V DD ≤ 5.5 V
0 mA ≤ I REF ≤ 2 mA
I REF = 1 mA
Over 1,000 hr, T J = 125°C
V REF = 2.4 V
Output Resistance 2
0.5
?
Load Capacitance
Ripple Due to Autozero 2
1
±5
nF
mV p-p
Recommended for stability
V REF refreshed at 30 kHz
POWER BLOCK PROTECTION
V DD Overvoltage
5.8
6.2
6.5
V
V DD Overvoltage Debounce
V REF Overvoltage
V REFOUT Undervoltage
10
2.9
2.1
20
μs
V
V
Latching
Internal
External
Open Ground
Debounce
0.1
100
0.2
0.35
200
V
μs
V GND positive with respect to V S ?
V DD OK
POWER-ON RESET
DC Level
1.5
2.2
2.75
V
V DD rising
DIFFERENTIAL LOAD VOLTAGE SENSE INPUT,
(V S ?, V S +)
See Figure 6. V NOM = (V S + – V S ?)
V NOM is typically 2 V
V S ? Input Voltage
V S + Input Voltage
V S ? Input Resistance
V S + Input Resistance
V NOM Adjustment Range
Set Load Voltage Trim Step
500
35
1.7 to 2.3
0.10 to 0.14
1.74 –> 3.18
0.5
V DD – 2
V
V
k?
k?
V
%
mV
Voltage on Pin 20
Voltage on Pin 21
1.7 V ≤ V NOM ≤ 2.3 V typ
8 bits, 255 steps
Reg 19h[7:0]. See Table 34
Set Load Overvoltage Trim Range
Set Load Overvoltage Trim Step
105 to 120
0.09
1.6
%
%
mV
1.7 V ≤ V NOM ≤ 2.3 V min
8 bits, 255 step/s
Reg 08h[7:0]. See Table 17.
V S + = 2.24 V
Recover from Load OV False to F G True
Operate Time from Load OV to F G False
100
200
300
400
2
μs
μs
μs
μs
μs
Reg 03h[1:0] = 00. See Table 12.
Reg 03h[1:0] = 01. See Table 12.
Reg 03h[1:0] = 10. See Table 12.
Reg 03h[1:0] = 11. See Table 12.
Rev. A | Page 6 of 64
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