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參數(shù)資料
| 型號： | MIC79110 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Simple 1.2A Linear Li-Ion Battery Charger |
| 中文描述： | 簡單1.2A的線性鋰離子電池充電器 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 156K |
| 代理商： | MIC79110 |
July 2004
3
M9999-072004
MIC79110
Absolute Maximum Ratings
(1)
Input Supply Voltage (V
IN
) .................................. 0V to 18V
Shutdown Input Voltage (V) ................................ 0V to 18V
Output Voltage (ADJ) ....................................................10V
Power Dissipation ....................................Internally Limited
Junction Temperature .............................. –40
°
C to +125
°
C
Micrel
Operating Ratings
(2)
Input Supply Voltage ........................................ 2.5V to 16V
Shutdown Input Voltage (V) .................................. 0V to 7V
Output Voltage (ADJ) ...................................................9.6V
Junction Temperature Range (T
J
) ........... –40
°
C to +125
°
C
θ
JA
(MLF-10)........................................................ 60
°
C
θ
JC
(MLF-10) ......................................................... 2
°
C
Electrical Characteristics
T
A
= 25
°
C with V
IN
= V
OUT
+ 1V; I
LOAD
= 100
μ
A ; C
BATT
= 10
μ
F; SD = 0V; R
SET
=1k
.
Bold
values indicate –40oC < T
J
< +125
°
C;
unless otherwise specified.
Parameter
Condition
Min
Typ
Max
Unit
Output Voltage Accuracy
Variation from V
OUT
= 4.2V; T
J
= –5
°
C to +60
°
C; I
Load
= 50mA
–0.75
+0.75
%
–1.5
+1.5
%
ADJ Pin Voltage Accuracy
0.5955
0.6
0.6045
V
Line Regulation
V
IN
= Vout + 1V to 16V @ I
LOAD
= 50mA
I
LOAD
= 0.1mA to 1A
I
LOAD
= 100mA, Rset = 167
I
LOAD
= 700mA, Rset = 167
I
LOAD
= 10mA, Rset = 167
I
LOAD
= 700mA, Rset = 167
SD = V
IN
SD = 5.2V, V
BAT
= 0
Logic High, regulator off
–0.1
+0.1
%/V
Load Regulation
0.3
%
Dropout Voltage
(3)
160
250
mV
375
550
mV
Ground Current
2
3
mA
24
35
mA
V
IN
Pin Current
Shutdown Pin Current
120
300
μ
A
0.1
5
μ
A
Shutdown Input Threshold
1.1
V
Logic Low, regulator on
0.9
V
Shutdown Hysteresis
60
mV
Current Limit Accuracy
(4, 5)
V
OUT
= 0.9
×
V
NOM
; I
OUT
= 1.2A,
R
SET
= 167
, T
J
= –40
°
C to +85
°
C
V
OUT
= 0.9
×
V
NOM
; I
OUT
= 0.1A,
R
SET
= 2k
–5
+5
%
–20
+20
%
Current Limit Setpoint Range
(5)
0.1
1.2
A
Maximum Current Limit
R
SET
shorted to ground, V
BAT
= 0.9
×
V
NOM
V
IN
= High impedance or ground
1.25
1.65
2.5
A
V
BAT
Reverse Current
Digital End–of–Charge (D
EOC
) Output
I
EOC (6, 7)
4.2
20
μ
A
R
EOC
= 4kW Current Falling
35
30
50
65
70
mA
mA
I
EOC (6, 7)
R
EOC
= 4kW Current Rising
50
40
70
95
100
mA
mA
D
EOC
Logic–Low Voltage
D
EOC
Leakage Current
D
EOC
On Resistance
R
EOC
Maximum Current Limit
Analog Charge Indicator (A
CHG
) Output
I
SOURCE(8)
I
DEOC
= 5mA, I
BAT
= 700mA
Logic High = V
IN
= 16V
V
IN
= +5V
R
EOC
shorted to ground
0.74
0.95
V
0.1
μ
A
150
190
0.5
1.0
2.0
mA
I
BAT
= 50mA
I
BAT
= 1.2A, T
J
= –40
°
C to +85
°
C
45
46
55
μ
A
800
950
1150
μ
A
Notes:
1.
Exceeding the absolute maximum rating may damage the device.
2.
The device is not guaranteed to function outside its operating rating.
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