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参数资料
型号： LTC3456EUF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 稳压器
英文描述： ECONOLINE: RSZ/P - 1kVDC
中文描述： 0.9 A BATTERY CHARGE CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC24
封装： 4 X 4 MM, PLASTIC, MO-220-WGGD, QFN-24
文件页数： 2/28页
文件大小： 358K
代理商： LTC3456EUF
2
LTC3456
3456f
(Note 1)
V
BATT
, V
MAX
Voltages ................................. –0.3V to 6V
V
INT
, V
MAIN
, V
EXT
, HSO Voltages ................ –0.3V to 6V
SW1, SW2_BK, SW2_BST Voltages ........... –0.3V to 6V
USB, USBHP, SUSPEND Voltages .............. –0.3V to 6V
PWRKEY, PBSTAT, PWRON Voltages ........ –0.3V to 6V
MODE, AO, EXT_PWR, RESET Voltages ..... –0.3V to 6V
FB1, AIN, WALLFB Voltages ....................... –0.3V to 2V
Junction Temperature.......................................... 125
°
C
Operating Temperature Range (Note 2).. –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 125
°
C
ABSOLUTEW
W
W
U
ELECTRICAL CHARACTERISTICS
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
C.
V
BATT
= 2.4V, V
INT
= 3.3V, V
PWRON
= 2V, PWRKEY is open, V
USB
= 0V, V
WALLFB
= 0V, unless otherwise specified.
PARAMETER
CONDITIONS
Battery Voltage Range
Quiescent Current (Battery Powered)
(Note 3)
Burst Mode
Operation
V
MODE
= 2V, V
FB1
= 1V, V
INT
= 3.4V
PWM Operation
V
MODE
= 0V, V
FB1
= 1V, V
INT
= 3.4V
Shutdown
V
PWRON
= 0V, V
INT
= 0V
V
BATT
Pin Current (Wall Powered)
V
WALLFB
= 1.5V, V
EXT
= 5V (Note 4)
V
BATT
Pin Current (USB Powered)
V
USB
= 5V, V
EXT
= 5V (Note 4)
Switching Frequency
Battery Powered
V
BATT
= 2.4V
USB or Wall Powered
V
EXT
= 5V, V
WALLFB
= 1.5V
Main Output
V
INT
Voltage Regulation
V
INT
Voltage Line Regulation
V
BATT
= 1.8V to 3.2V
Max Duty Cycle
Switch Leakage (Battery Powered)
SW2_BST PMOS Switch
V
SW2_BST
= 0V
SW2_BST NMOS Switch
V
SW2_BST
= 3.3V
Switch On-Resistance (Battery Powered)
SW2_BST PMOS Switch
I
SW2_BST
= 150mA
SW2_BST NMOS Switch
I
SW2_BST
= –150mA
Burst Mode is a registered trademark of Linear Technology
ORDER PART
NUMBER
LTC3456EUF
T
JMAX
= 125
°
C,
θ
JA
= 37
°
C/W,
θ
JC
= 2
°
C/W
EXPOSED PAD (PIN 25) IS PGND
MUST BE SOLDERED TO PCB
PACKAGE/ORDER U
U
W
UF PART
MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
3456
24 23 22 21 20 19
7
8
9
TOP VIEW
25
UF PACKAGE
24-LEAD (4mm
×
4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
AIN
AO
AGND
V
BATT
SW1
PGND
SUSPEND
HSO
V
MAIN
V
INT
SW2_BST
SW2_BK
F
R
M
P
P
P
W
E
V
E
U
V
M
U
MIN
1.8
TYP
MAX
3.2
UNITS
V
180
380
0.1
1
1
250
450
1
2
2
μ
A
μ
A
μ
A
μ
A
μ
A
0.8
0.8
1
1
1.2
1.2
MHz
MHz
●
3.22
3.3
0.1
87
3.38
0.5
V
●
%/V
%
●
80
0.1
0.1
1
1
μ
A
μ
A
0.8
0.5
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相关代理商/技术参数
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