參數(shù)資料
型號(hào): HA17451AP
廠商: Hitachi,Ltd.
英文描述: Switching Regulator Controllers for DC/DC Converters
中文描述: 開關(guān)穩(wěn)壓器控制器的直流/直流轉(zhuǎn)換器
文件頁(yè)數(shù): 9/15頁(yè)
文件大小: 83K
代理商: HA17451AP
HA17451AP/HA17451AFP
9
Characteristic Curves
3.0
2.5
2.0
1.5
1.0
0.5
0
I = 1 mA
Ta = 25
°
C
0
10
Supply Voltage V
CC
(V)
20
30
40
Reference Output Voltage vs. Supply Voltage
R
D
O
O
V
P
φ
V
T
Reference Output Voltage Variation vs.
Ambient Temperature
1.5
Ambient Temperature Ta (
°
C)
Frequency (Hz)
Ambient Temperature Ta (
°
C)
Dead Time Input Voltage
V
D.T.C
(V)
Drop-Out Voltage vs.
Ambient Temperature
Open Loop Gain, Phase Variation vs.
Frequency
Output Transistor “ON” Duty vs.
Dead Time Input Voltage (1)
1.0
0.5
0
–0.5
–1.0
–1.5
–20
0
25
50
75
85
V
CC
= 6 V
I
OUT
= 1 mA
16151413121110 9
HA17451A
1 2 3 4 5 6 7 8
A
V
1 mA
0.4
0.3
0.2
0.1
0–20
0
25
50
75
85
Vdrop = V – Vref (V = 3 V)
V : Vref (V = 3 V) – Vref (X) > 5 mV
100
1 k
10 k
100 k
1 M
10 M
100
90
80
70
60
50
40
30
20
10
0
V = 6 V
Ta = 25
°
C
Av
φ
O
Dead Time Input Voltage
V
D.T.C
(V)
Output Transistor “ON” Duty vs.
Dead Time Input Voltage (2)
0
20
40
60
80
100
1.00
1.25
1.50
1.75
2.00
2.25
V = 6 V
C = 33000 pF
R = 39 k
f = 0.8 kHz
Ta = 25
°
C
0
20
40
60
80
100
1.00
1.25
1.50
1.75
2.00
2.25
V = 6 V
C = 330 pF
R = 10 k
f = 200 kHz
Ta = 25
°
C
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