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參數(shù)資料
| 型號： | LA5677M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Dual Switching Regulator Control IC(雙開關(guān)穩(wěn)壓器控制芯片) |
| 中文描述： | 雙開關(guān)穩(wěn)壓器控制IC（雙開關(guān)穩(wěn)壓器控制芯片） |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 98K |
| 代理商： | LA5677M |
Continued from preceding page.
Pin Functions
No. 3660-3/7
LA5677M
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Input offset voltage
V
IO
I
IO
I
B
With V (pins 5, 12) = 1.25 V
–6
+6
mV
Input offset current
With V (pins 5, 12) = 1.25 V
–100
+100
nA
Input bias current
With V (pins 5, 12) = 1.25 V
160
500
nA
Common mode
input voltage range
V
ICR
V
CC
= 3.6 to 18 V
1.05
1.45
V
Open loop gain
A
V
R
NF
= 200 k
80
dB
Unity gain
bandwidth
G
B
1.5
MHz
Error amplifier block
Common mode
rejection ratio
CMRR
80
dB
Maximum output
voltage amplitude (1)
V
O
+ m
Vref – 0.1
V
Maximum output
voltage amplitude (2)
V
O
– m
1.0
V
Output sink current
(pins 5, 12)
I
O
+ m
V
ID
= –0.1 V, V
O
= 1.25 V
1.6
mA
Output source
current (pins 5, 12)
I
O
– m
V
ID
= 0.1 V, V
O
= 1.25 V
–70
μA
Output leakage
current
I
leak
V
O
= 18 V
10
μA
Output block
Output saturation
voltage
Vsat
I
O
= 10 mA
1.0
2
V
Short circuit output
current
I
OS
V
O
= 6 V
60
mA
Vt0
With a duty cycle of 0%
2.05
2.25
V
Input threshold
voltage
Vt100
fosc = 10 kHz,
With a duty cycle of 100%
1.20
1.45
V
PWM comparator
block
Input sink current
(pins 5, 12)
With V (pins 5, 12) = 1.25 V
1.6
mA
Input source current
(pins 5, 12)
With V (pins 5, 12) = 1.25 V
–70
μA
Standby current
I
CC
1
Output off state
1.6
2.2
mA
Whole device
Average supply
current
I
CC
2
R
T
= 10 k
1.9
2.6
mA
No.
Pin
Function
No.
Pin
Function
1
C
T
R
T
OP1+
Triangle wave oscillator capacitor connection
9
V
CC
OUT2
Power supply input
2
Triangle wave oscillator resistor connection
10
Output 2
3
Error amplifier 1 + input
11
DEAD TIME2
Dead time 2 control
4
OP1–
Error amplifier 1 – input
12
OP2
OUT
OP2–
Error amplifier 2 output
5
OP1
OUT
DEAD TIME1
Error amplifier 1 output
13
Error amplifier 2 – input
6
Dead time 1 control
14
OP2+
Error amplifier 2 + input
7
OUT1
Output 1
15
S. C. P
Short circuit protection circuit connection
8
GND
Ground connection
16
Vref
Reference voltage (2.5 V)
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