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LM2825 датащи(PDF) 4 Page - Texas Instruments

номер детали LM2825
подробное описание детали  LM2825 Integrated Power Supply 1A DC-DC Converter
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LM2825
SNVS127C – MAY 1997 – REVISED APRIL 2013
www.ti.com
LM2825-12 Electrical Characteristics
(1)
Specifications with standard type face are for TA = 25°C, and those with boldface type apply over full Operating
Temperature Range. Test Circuit, see Figure 17.
Symbol
Parameter
Conditions
LM2825-12
Units
(Limits)
Typical(2)
Limit(3)
VOUT
Output Voltage
15V
≤ VIN ≤ 40V, 0.1A ≤ ILOAD ≤ 0.75A
12.0
V
11.52/11.40
V(min)
12.48/12.60
V(max)
Line Regulation
15V
≤ VIN ≤ 40V
8.5
mV
ILOAD = 100 mA
Load Regulation
0.1A
≤ ILOAD ≤ 0.75A
12
mV
VIN = 24V
Output Ripple Voltage
VIN = 24V, ILOAD = 1A
100
mV p-p
η
Efficiency
VIN = 24V, ILOAD = 0.5A
87
%
(1)
When the LM2825 is used as shown in Figure 17 test circuit, system performance will be as shown in Electrical Characteristics.
(2)
Typical numbers are at 25°C and represent the most likely norm.
(3)
All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face) when output current is limited
to the value given in the temperature derating curves. See the Application Information section for curves. All limits at temperature
extremes are ensured using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing
Quality Level (AOQL).
LM2825-ADJ Electrical Characteristics
(1)
Specifications with standard type face are for TA = 25°C, and those with boldface type apply over full Operating
Temperature Range. Test Circuit, see Figure 18.
Symbol
Parameter
Conditions
LM2825-ADJ
Units
(Limits)
Typical(2)
Limit(3)
VADJ
Adjust Pin Voltage
4.5V
≤ VIN ≤ 40V, 0.1A ≤ ILOAD ≤ 1A
1.230
V
1.23V
≤ VOUT ≤ 8V
1.193/1.180
V(min)
1.267/1.280
V(max)
η
Efficiency
VIN = 12V, ILOAD = 0.5A
74
%
VOUT Programmed for 3V. See Circuit of Figure 18
(1)
When the LM2825 is used as shown in Figure 18 test circuit, system performance will be as shown in Electrical Characteristics.
(2)
Typical numbers are at 25°C and represent the most likely norm.
(3)
All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face) when output current is limited
to the value given in the temperature derating curves. See the Application Information section for curves. All limits at temperature
extremes are ensured using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing
Quality Level (AOQL).
LM2825H-ADJ Electrical Characteristics
(1)
Specifications with standard type face are for TA = 25°C, and those with boldface type apply over full Operating
Temperature Range. Test Circuit, see Figure 18.
Symbol
Parameter
Conditions
LM2825H-ADJ
Units
(Limits)
Typical(2)
Limit(3)
VADJ
Adjust Pin Voltage
9V
≤ VIN ≤ 40V, 0.1A ≤ ILOAD ≤ 0.55A
1.230
V
7V
≤ VOUT ≤ 15V
1.193/1.180
V(min)
1.267/1.280
V(max)
η
Efficiency
VIN = 24V, ILOAD = 0.5A
87
%
VOUT Programmed for 12V. See Circuit of Figure 18
(1)
When the LM2825 is used as shown in Figure 18 test circuit, system performance will be as shown in Electrical Characteristics.
(2)
Typical numbers are at 25°C and represent the most likely norm.
(3)
All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face) when output current is limited
to the value given in the temperature derating curves. See the Application Information section for curves. All limits at temperature
extremes are ensured using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing
Quality Level (AOQL).
4
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