®
ACT8937
Rev 0, 21-Sep-10
TYPICAL PERFORMANCE CHARACTERISTICS
(VVSYS = 3.6V, TA = 25°C, unless otherwise specified.)
Frequency vs. Temperature
VREF vs. Temperature
0.84
0.42
0
2.5
2
1.5
1
0.5
0
-0.42
-0.84
-0.5
-1
Typical VREF=1.2V
Typical Oscillator Frequency=2MHz
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80 85
Temperature (°C)
Temperature (°C)
PWRHLD holding OUT1 & OUT5 after
nPBIN is released
PWREN Sequence
CH1
CH1
CH2
CH3
CH2
CH3
CH4
CH5
CH6
CH4
CH1: VPWREN, 5V/div
CH2: VOUT2, 1V/div
CH3: VOUT3, 1V/div
CH4: VOUT4, 1V/div
CH5: VOUT6, 1V/div
CH6: VOUT7, 2V/div
TIME: 4ms/div
CH1: VnPBIN, 2V/div
CH2: VOUT5, 1V/div
CH3: VOUT1, 2V/div
CH4: VPWRHLD, 2V/div
TIME: 100ms/div
nPBIN Startup Sequence
nPBIN Startup Sequence
CH1
CH2
CH1
CH2
CH3
CH3
CH4
CH4
CH5
CH5
CH6
CH1: VnPBIN, 5V/div
CH1: VnPBIN, 5V/div
CH2: VOUT5, 1V/div
CH3: VOUT2, 1V/div
CH4: VOUT3, 1V/div
CH5: VOUT4, 1V/div
TIME: 2ms/div
CH2: VOUT5, 1V/div
CH3: VOUT2, 1V/div
CH4: VOUT1, 2V/div
CH5: VOUT6, 1V/div
CH6: VOUT7, 2V/div
TIME: 4ms/div
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