參數(shù)資料
型號(hào): L6902N
英文描述: Analog IC
中文描述: 模擬IC
文件頁(yè)數(shù): 3/6頁(yè)
文件大小: 88K
代理商: L6902N
3/6
L6902D
INTERNAL BLOCK DIAGRAM
ELECTRICAL CHARACTERISTCS
(T
j
= 25°C, V
CC
= 12V, unless otherwise specified.) () Specification Referred to Tj from 0 to 125°C.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
CC
Operating input voltage range
V
O
= 1.235V; I
O
= 1A
8
36
V
V
d
Dropout voltage
V
CC
= 8V; I
O
= 1A
0.25
0.5
V
I
O
Operating charging current
R
sense
= 0.1
0.95
1
1.05
A
0.92
1.08
A
I
l
Maximum limiting current
V
CC
= 8V to 36V
2
2.5
3.2
A
fs
Switching frequency
212
250
287
kHz
225
250
275
kHz
d
Duty cycle
0
100
%
DYNAMIC CHARACTERISTICS
V
5
Voltage feedback (FB)
8V < V
CC
< 36V,
20mA < I
O
< 1A
1.21
1.235
1.259
V
1.198
1.235
1.272
V
η
Efficiency
V
O
= 5V, V
CC
= 12V
90
%
DC CHARACTERISTICS
I
qop
Total operating quiescent
current
3
5
mA
I
q
Quiescent current
Duty cycle = 0; VFB = 1.5V
2.7
mA
VREF
GOOD
3.8V
COMP
VFB
DRIVER
INHIBIT
+
-
1.235V
E/A
1.235V
THERMAL
SHUTDOWN
-
+
PWM
OSCILLATOR
OUT
V
cc
GND
V
ref
SUPPLY
TRIMMING
FREQUENCY
SHIFTER
VOLTAGES
MONITOR
D
Q
CK
CURRENT LIMITING
PEAK TO PEAK
+
-
Current_E/A
Voltage_E/A
CS-
CS+
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