MIC3839BMM TR Micrel Inc, MIC3839BMM TR Datasheet - Page 6

• Manufacturer Part Number: MIC3839BMM TR
• Description: IC CTRLR DC/DC PUSH-PULL 10-MSOP
• Manufacturer: Micrel Inc

Specifications of MIC3839BMM TR

• Pwm Type: Voltage/Current Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 50%
• Voltage - Supply: 2 V ~ 14 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: MIC3839BMMTR; MIC3839BMMTR

MIC3838/3839
Typical Characteristics
MIC3838/3839
1.400
1.300
1.200
1.100
1.000
10.0
-0.05
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.35
0.25
0.15
0.05
-0.1
89
88
87
86
85
84
83
0.4
0.3
0.2
0.1
0
0
0
MIC3839 Oscillator Variation
0
2
MIC3839 I
RC Pin Resistance
2
TEMPERATURE (°C)
vs. Temperature
V
RESISTANCE (kΩ)
4
vs. Deadtime
IN = 10V
OPERATING
I
4
DD
MIC3838
V
6
vs. V
Current
DD
V
6
DD
DD
8
(V)
V
(V)
DD
8
Current
IN = 5V
10 12 14
10 12 14
-0.50
-1.00
100k
16.0
14.0
12.0
10.0
1.50
1.00
0.50
0.00
2.04
2.02
2.00
1.98
1.96
1.94
1.92
10k
8.0
6.0
4.0
2.0
1M
0
4
0
0
MIC3838 Oscillator Variation
C = 1000pF
C = 100pF
MIC3839 Error Amplifier
Oscillator Frequency
2
6
V
C = 220pF
Reference vs. V
TEMPERATURE (°C)
IN = 10V
50k
vs. Temperature
vs. RC Values
4
RESISTANCE (kΩ)
C = 270pF
8
I
DD
MIC3839
V
C = 330pF
6
10 12 14 16 18
6
V
Current
DD
100k
DD
C = 470pF
8
(V)
(V)
V
10 12 14
C = 680pF
DD
150k
DD
= 10V
200k
-0.500
-1.000
-1.500
1.260
1.250
1.240
1.230
1.220
2.000
1.500
1.000
0.500
0.000
200
175
150
125
100
2.040
2.030
2.020
2.010
2.000
1.990
75
50
Variation vs. Temperature
Reference vs. Temperature
MIC3839 % Oscillator
MIC3838 I
RC Pin Capacitance
MIC3838 Error Amplifier
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Temperature
CAPACITANCE (pF)
V
TEMPERATURE (°C)
IN
vs. Deadtime
= 10V
V
IN
DD
= 5V
Current
V
V
IN
IN
= 10V
= 10V
April 2005
Micrel