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參數(shù)資料
| 型號： | LT1510IS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Constant-Voltage/ Constant-Current Battery Charger |
| 中文描述： | 2 A BATTERY CHARGE CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大小： | 339K |
| 代理商： | LT1510IS |
6
LT1510/LT1510-5
TYPICAL PERFOR
M
A
N
CE CHARACTERISTICS
SWITCH CURRENT (A)
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4
1.8 2.0
1.6
B
50
45
40
35
30
25
20
15
10
5
0
1510 G07
V
CC
= 16V
V
BOOST
= 38V
28V
18V
Switch Current vs Boost Current
vs Boost Voltage
TEMPERATURE (
°
C)
0
R
2.470
2.468
2.466
2.464
2.462
2.460
2.458
25
50
75
100
1510 G14
125
150
Reference Voltage vs
Temperature
V
BOOST
(V)
4
2
6
8
M
16 18
20
96
95
94
93
92
91
90
89
88
87
86
LT1510 TPC15
10 12 14
22
V
BOOST
vs
Maximum Duty Cycle
PI
FU
CTIO
N
S
U
U
GND:
Ground Pin.
SW:
Switch Output. The Schottky catch diode must be
placed with very short lead length in close proximity to SW
pin and GND.
V
CC
:
Supply for the Chip. For good bypass, a low ESR
capacitor of 10
μ
F or higher is required, with the lead length
kept to a minimum. V
CC
should be between 8V and 28V
and at least 2V higher than V
BAT
for V
BAT
less than 10V, and
2.5V higher than V
BAT
for V
BAT
greater than 10V. Under-
voltage lockout starts and switching stops when V
CC
goes
below 7V. Note that there is a parasitic diode inside from
SW pin to V
CC
pin. Do not force V
CC
below SW by more
than 0.7V with battery present. All V
CC
pins should be
shorted together close to the pins.
BOOST:
This pin is used to bootstrap and drive the switch
power NPN transistor to a low on-voltage for low power
dissipation. In normal operation, V
BOOST
= V
CC
+ V
BAT
when switch is on. Maximum allowable V
BOOST
is 55V.
SENSE:
Current Amplifier CA1 Input. Sensing can be at
either terminal of the battery. Note that current sense
resistor R
S1
(0.08
) is between Sense and BAT pins.
BAT:
Current Amplifier CA1 Input.
PROG:
This pin is for programming the charging current
and for system loop compensation. During normal opera-
tion, V
PROG
stays close to 2.465V. If it is shorted to GND
the switching will stop. When a microprocessor-controlled
DAC is used to program charging current, it must
be
capable of sinking current at a compliance up to 2.465V.
V
C
:
This is the control signal of the inner loop of the current
mode PWM. Switching starts at 0.7V and higher V
C
corresponds to higher charging current in normal opera-
tion. A capacitor of at least 0.1
μ
F to GND filters out noise
and controls the rate of soft start. To shut down switching,
pull this pin low. Typical output current is 30
μ
A.
OVP:
This is the input to the amplifier VA with a threshold
of 2.465V. Typical input current is about 50nA into pin. For
charging lithium-ion batteries, VA monitors the battery
voltage and reduces charging current when battery volt-
age reaches the preset value. If it is not used, the OVP pin
should be grounded.
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| LT1510IS#PBF | 功能描述:IC BATT CHARGER CONST V/I 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| LT1510IS#TR | 制造商:Linear Technology 功能描述:Constant Current/Voltage Charger Li-Ion/NiCD/NiMH 1500mA 2V to 20V 16-Pin SOIC N T/R |
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