MIC2185_05 Datasheet, PDF (5/15 Pages) Micrel Semiconductor – Low Voltage Synchronous Boost PWM Control IC

MIC2185
Typical Characteristics
Quiescent Current vs.
Temperature (SKIP Mode)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
V_INA = 5V_DC
0.1
-040 -20 0
V_INP = 12V_DC
I_Q = I_QVINA+I_QVINP
20 40 60 80 100120140
TEMPERATURE (°C)
Quiescent Current vs.
Input Voltage( PWM Mode)
5.0
4.5
V_INP = 12V
4.0
3.5
3.0
V_INP = 9V
2.5
2.0
1.5
V_INP = 5V
1.0
0.5
I_Q = I_QVINA + I_QVINP
f_S = 400kHz
00 _{2 4 6 8 10 12 14 16}
INPUT VOLTAGE (V_INA)
Reference Voltage
vs. Reference Current
1.2470
1.2469
1.2468
1.2467
1.2466
1.2465
1.2464
1.2463
111...2224446660120VV1^IINN_{0AP2==0513V20}^DVCD₄₀^C _{50 60 70 80 90 100}
REFERENCE CURRENT (µA)
3.040
3.035
3.030
VDD vs.
Load Current
V_INP = 12V_DC
V_INA = 5V_DC
3.025
3.020
3.015
3.0100 _{0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0}
I_VDD (mA)
October 2005
Quiescent Current vs.
Temperature (PWM Mode)
4.75
4.70
4.65
4.60
4.55
4.50
4.45 ^VIN^{A = 5V}DC
4.40 ^{VINP = 12VDC}
4.35
f_S = 400kHz
I_Q = I_QVINA+I_QVINP
4.30
TEMPERATURE (°C)
Quiescent Current vs.
Input Voltage (SKIP Mode)
0.80
0.75
0.70
V_INP = 12V_DC
0.65
V_INP = 9V_DC
0.60
V_INP = 5V_DC
0.550 _{2 4 6 8 10 12 14 16}
INPUT VOLTAGE (V_INA)
1.257
1.255
1.253
Reference Voltage
vs. Temperature
V_INP = 12V_DC
V_INA = 5V_DC
1.251
1.249
1.247
1.245
1.243
1.241
1.239
1.23-740 _{-20 0 20 40 60 80 100120140}
TEMPERATURE(°C)
VDD vs.
Temperature
3.08
3.07 ^{VINP = 12VDC}
3.06 ^VIN^{A = 5V}DC
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
TEMPERATURE (°C)
5
Micrel, Inc.
Quiescent Current vs.
Input Voltage(PWM Mode)
5.0
4.5
4 0 0 kH z
4.0
3.5
3.0
2.5
200kHz
2.0
1.5
1.0 V_INP =12V_DC
0.5 I_Q = I_QVINA+I_QVINP
00 _{2 4 6 8 10 12 14 16}
INPUT VOLTAGE (V_INA)
1.2475
1.247
Reference Voltage
vs. Input Voltage
V_INP = 12V_DC
1.2465
1.246
1.2455
1.2450 _{2 4 6 8 10 12 14 16}
INPUT VOLTAGE (V_INA)
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.800
VDD vs.
Input Voltage
V_INP = 12V_DC
2 4 6 8 10 12 14
INPUT VOLTAGE (V_INA)
I_ENABLE vs. V_ENABLE
300
V_INP = 12V_DC
–40°C
250 V_INA = 5V_DC
200
150
100
20°C
85°C
50
00 _{2 4 6 8 10 12 14}
V_ENABLE (V)
MIC2185