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
文件頁數(shù): 6/15頁
文件大小: 83K
代理商: HA17451AP
HA17451AP/HA17451AFP
6
Electrical Characteristics
(Ta = 25
°
C, V
CC
= 6 V, f
OSC
= 200 kHz)
Reference Section
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Output voltage
Vref
2.40
2.50
2.60
V
I
O
= 1 mA
I
O
= 1 mA
V
CC
= 3.0 to 40 V
I
O
= 0.1 to 1 mA
Vref = 0.5 V
Voltage drop
Vdrop
0.2
0.35
V
Line regulation
Line
2
12.5
mV
Load regulation
Load
1
7.5
mV
Maximum output current
I
OMAX
I
OR
3
10
30
mA
Reverse voltage state
minimum current
18
μ
A
0.2 V < Vref < 0 V
Undervoltage Lockout Protection Section
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
High level threshold
Vth
2.90
3.15
3.30
V
I
O
= 0.1 mA
I
O
= 0.1 mA
I
O
= 0.1 mA
I
O
= 0.1 mA
Low level threshold
Vtl
2.75
2.98
3.15
V
Hysteresis width
V
HYS
V
R
100
170
mV
Reset voltage
1.5
1.9
V
Protection Section
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Input threshold
V
TPC
V
STBY
Ibpc
0.56
0.61
0.66
V
Input standby voltage
140
185
230
mV
No pull up
Input source current
10
15
20
μ
A
Comparator threshold voltage Vtc
1.23
V
Pins 5 and 12
Oscillator Section
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Frequency
f
OSC
f
dev
f
dv
200
kHz
C
T
= 330 pF, R
T
= 10 k
Initial accuracy
10
%
Voltage stability
1
%
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