- 您现在的位置：买卖IC网 > PDF目录16238 > MAX713CSE+ (Maxim Integrated Products)IC BATT FASTCHRG NICD/NIMH16SOIC PDF资料下载
参数资料
| 型号： | MAX713CSE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/17页 |
| 文件大小： | 0K |
| 描述： | IC BATT FASTCHRG NICD/NIMH16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 1409 (CN2011-ZH PDF) |
MAX712/MAX713
NiCd/NiMH Battery
Fast-Charge Controllers
charge until one of the three fast-charge terminating
DC IN
DRV
V+
REF
VLIMIT
conditions is triggered.
If DC IN exceeds 20V, add a cascode connection in
series with the DRV pin as shown in Figure 5 to prevent
exceeding DRV’s absolute maximum ratings.
Select the current-limiting component (R1 or D4) to
pass at least 5mA at the minimum DC IN voltage (see
step 6 in the Getting Started section). The maximum
current into V+ determines power dissipation in the
MAX712/MAX713.
D1
CELL_VOLTAGE
GND
CURRENT-SENSE AMPLIFIER
PGM3 FAST_CHARGE Av
maximum current into V+ =
(maximum DC IN voltage - 5V)/R1
power dissipation due to shunt regulator =
5V x (maximum current into V+)
Sink current into the DRV pin also causes power dissipa-
X
1
8
tion. Do not allow the total power dissipation to exceed
V+
OPEN
REF
0
0
0
512
256
128
CC
the specifications shown in the Absolute Maximum
Ratings.
BATT-
BATT-
0
64
C2
Fast Charge
The MAX712/MAX713 enter the fast-charge state under
R SENSE
BATT-
BATT-
one of the following conditions:
1) Upon application of power (batteries already
installed), with battery current detection (i.e., GND
GND
1.25V
IN_REGULATION
voltage is less than BATT- voltage), and TEMP
higher than TLO and less than THI and cell voltage
BATT-
Figure 6. Current and Voltage Regulator (linear mode)
Operating Circuit ), the diode (D1), and the sense
resistor (R SENSE ). This minimum input voltage require-
ment is critical, because violating it can inhibit proper
termination of the fast-charge cycle. A safe rule of
thumb is to choose a source that has a minimum input
voltage = 1.5V + (1.9V x the maximum number of cells
to be charged). When the input voltage at DC IN drops
below the 1.5V + (1.9V x number of cells), the part
oscillates between fast charge and trickle charge and
might never completely terminate fast-charge.
The MAX712/MAX713 are inactive without the wall cube
attached, drawing 5μA (max) from the battery. Diode
D1 prevents current conduction into the DRV pin. When
the wall cube is connected, it charges C1 through R1
(see Typical Operating Circuit) or the current-limiting
diode (Figure 19). Once C1 charges to 5V, the internal
shunt regulator sinks current to regulate V+ to 5V, and
fast charge commences. The MAX712/MAX713 fast
10
higher than the UVLO voltage.
2) Upon insertion of a battery, with TEMP higher than
TLO and lower than THI and cell voltage higher than
the UVLO voltage.
R SENSE sets the fast-charge current into the battery. In
fast charge, the voltage difference between the BATT-
and GND pins is regulated to 250mV. DRV current
increases its sink current if this voltage difference falls
below 250mV, and decreases its sink current if the volt-
age difference exceeds 250mV.
fast-charge current (I FAST ) = 0.25V/R SENSE
Trickle Charge
Selecting a fast-charge current (I FAST ) of C/2, C, 2C, or
4C ensures a C/16 trickle-charge current. Other fast-
charge rates can be used, but the trickle-charge
current will not be exactly C/16.
The MAX712/MAX713 internally set the trickle-charge
current by increasing the current amplifier gain (Figure
6), which adjusts the voltage across R SENSE (see
Trickle-Charge V SENSE in the Electrical Characteristics
table).
Maxim Integrated
相关PDF资料 |
PDF描述 |
|---|---|
| EMA10DRSD-S288 | CONN EDGECARD 20POS .125 EXTEND |
| 4590R-333K | INDUCTOR HIGH CURRENT 33.0UH |
| RP12-123.3SA | CONV DC/DC 12W 9-18VIN 3.3VOUT |
| RP12-1215SA | CONV DC/DC 12W 9-18VIN 15VOUT |
| MAX712CPE+ | IC BATT FASTCHRG NICD/NIMH 16DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX713CSE+ | 功能描述:电池管理 NiCd/NiMH Battery Fast-Charge Ctlr RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX713CSE+T | 功能描述:电池管理 NiCd/NiMH Battery Fast-Charge Ctlr RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX713CSE-T | 功能描述:电池管理 NiCd/NiMH Battery Fast-Charge Ctlr RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX713EPE | 功能描述:电池管理 NiCd/NiMH Battery Fast-Charge Ctlr RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX713EPE+ | 功能描述:电池管理 NiCd/NiMH Battery Fast-Charge Ctlr RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。