参数资料
型号: GM34063S8T
厂商: American Power Management Inc.
英文描述: 1.5A DC-TO-DC CONVERTER CONTROL CIRCUIT
中文描述: 1.5A的直流到直流转换器控制电路
文件页数: 12/16页
文件大小: 262K
代理商: GM34063S8T
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.2 0.4 0.6 0.8
1
1.2
1.4 1.6 1.8
I Emitter current (A)
E
V
S
a
tu
ra
ti
o
n
V
o
lt
a
g
e
(V
)
C
E
V
= 5V
CC
Pin1, 7, 8 =V
CC
Pin 3, 5 = GND
T = 25°C
A
Figure 1:Emitter Follows Configuration
Output
3.6
3.2
2.8
2.4
2
1.6
1.2
0.8
0.4
0
5
10
15
20
25
30
35
40
Figure 2: Standley Supply Current Versus
Supply Voltage
V
, Supply Voltage (V)
CC
I
,
S
u
p
ly
C
u
rr
e
n
t(
m
A
)
C
C = 1.0 nF
T
Pin 7 = V
CC
Pin 2 = GND
1000
950
900
850
800
750
-40
0
40
80
120 T (°C)
J
V
CE(sat)
(mV)
Figure 4: Darlington Configuration Collector
Emitter Saturation Voltage (V
)
CE(sat)
vs Temperature
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Darlington Connection
V
= 5V
CC
Pin 7 = V
CC
Pins 2, 3, 5 = GND
T = 25°C
A
Figure 3: Common Emitter Configuration
Output Switch Saturation Voltage versus
Collector Current
I , Collector Current(A)
C
V
,
S
a
tu
ra
ti
o
n
V
o
lt
a
g
e
(V
)
E
C
(s
a
t)
V
= 5V
CC
I = 1A
C
G
M
3
4
0
6
3
5
Typical Performance Characteristics
1000
500
200
100
50
20
10
5.0
2.0
0
0.01 0.02 0.05 0.1 0.2
0.5 1.0 2.0
5.0 10
V
= 5.0V
CC
Pin 7 = VCC
Pin 5 = GND
T = 25°C
A
ton
toff
C , Oscillator Timing Capacitor(nF)
T
t
,
O
u
tp
u
t
S
w
it
c
h
o
n
-o
ff
T
im
e
(
s
)
o
n
-o
ff
Figure 6: Output Switch On- Off Time versus
Oscillator Timing Capacitor
400
380
360
340
320
300
280
260
240
220
200
-55
-25
0
25
50
75
100
125
T , Ambient Temperature(°C)
A
V
,
C
u
rr
e
n
t
L
im
it
S
e
n
s
e
V
o
lt
a
g
e
(V
)
IP
K
(s
e
n
s
e
)
Figure 5: Current Limit Sense Voltage
versus Temperature
V
= 5.0V
CC
I
= I
chg
dischg
A
MICROELECTRONICS
GM34063
1.5A DC-to-DC CONVERTER CONTROL CIRCUIT
Power Management
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