AMS34063 データシートの表示（PDF） - Advanced Monolithic Systems Inc
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AMS34063 Datasheet PDF : 7 Pages
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FUNCTIONAL BLOCK DIAGRAM
DRIVE
8
COLLECTOR
7
IPK SENSE
6
VCC
COMPARATOR 5
INVERTING
INPUT
SQ
R
Q2
Q1
170
IPK
OSC
CT
+ COMP.
-
1.25V
REF
REG
1 SWITCH
COLLECTOR
2 SWITCH
EMITTER
3 TIMING
CAPACITOR
4
GND
AMS34063
TYPICAL PERFORMANCE CHARACTERISTICS
1000
Output Switch On-Off Time vs
Oscillator Timing Capacitor
VCC = 5.0V
IPK(sense) = VCC
Pin 5 = GND
100
10
1.0
0.1
1.0
10
100
OSCILLATOR TIMING CAPACITOR
Emitter-Follower Configuration
Output Switch Saturation Voltage
vs Emitter Current
1.6
VCC = 5.0V
1.5
Pins 1,7,8 = VCC
Pin 3,5 = GND
1.4
1.3
1.2
1.1
1.0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
EMITTER CURRENT (A)
Standby Supply Current vs
Supply Voltage
3.2
CT= 0.001µF
IPK(sense) = VCC
Pin 2 = GND
2.4
1.6
0.8
0
0 5.0 10 15 20 25 30 35 40
SUPPLY VOLTAGE (V)
Common-Emitter Configuration
Output Switch Saturation Voltage
vs Collector Current
1.2
VCC = 5.0V
1.0
Pin 7 = VCC
Pin 2,3,5 = GND
0.8
Darlington Connection
0.6
Forced Beta ≈20
0.4
0.2
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
COLLECTOR CURRENT (A)
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
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