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BQ24704

更新时间： 2024-01-30 04:48:01
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
31页 1473K
描述
Low Cost, Host-Controlled Li-Ion and Li-Polymer Battery Charger With Low Iq

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中文翻译

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BQ24704 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN,针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.14
Is Samacsys：N可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQCC-N24
JESD-609代码：e4长度：4 mm
湿度敏感等级：2信道数量：1
功能数量：1端子数量：24
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1 mm最大供电电压 (Vsup)：24 V
最小供电电压 (Vsup)：5 V标称供电电压 (Vsup)：7 V
表面贴装：YES温度等级：AUTOMOTIVE
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

BQ24704 数据手册

 浏览型号BQ24704的Datasheet PDF文件第5页浏览型号BQ24704的Datasheet PDF文件第6页浏览型号BQ24704的Datasheet PDF文件第7页浏览型号BQ24704的Datasheet PDF文件第9页浏览型号BQ24704的Datasheet PDF文件第10页浏览型号BQ24704的Datasheet PDF文件第11页 
bq24704  
SLUS838–MAY 2009........................................................................................................................................................................................................ www.ti.com  
ELECTRICAL CHARACTERISTICS (continued)  
7 V ≤ VPVCC ≤ 24 V, 0°C < TJ < +125°C, typical values are at TA = 25°C, with respect to AGND (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
PWM LOW SIDE DRIVER (LODRV)  
Low side driver turn-on resistance  
Low side driver turn-off resistance  
PWM DRIVERS TIMING  
Driver Dead Time — Dead time when  
REGN = 6 V, tested at 100 mA  
REGN = 6 V, tested at 100 mA  
3
6
RDS(on)  
Ω
0.6  
1.2  
switching between LODRV and HIDRV. No  
load at LODRV and HIDRV  
30  
ns  
PWM OSCILLATOR  
FSW  
PWM switching frequency  
PWM ramp height  
240  
300  
6.6  
360  
10  
kHz  
VRAMP_HEIGHT  
As percentage of PVCC  
%PVCC  
QUIESCENT CURRENT  
VBAT = 16.8 V, VACDET < 0.6 V,  
VPVCC > 5 V, TJ = 85°C  
7
Total off-state battery current from SRP,  
IOFF_STATE  
µA  
SRN, BAT, VCC, BTST, PH, etc.  
Adapter quiescent current  
VBAT = 16.8 V, VACDET < 0.6 V,  
VPVCC > 5 V, TJ = 125°C  
7
1
11  
IAC  
VPVCC = 20 V, charge disabled  
1.5  
mA  
INTERNAL SOFT START (8 steps to regulation current)  
Soft start steps  
8
step  
ms  
Soft start step time  
1.7  
CHARGER SECTION POWER-UP SEQUENCING  
Delay from when adapter is detected  
to when the charger is allowed to turn  
on  
Charge-enable delay after power-up  
0.9  
1.2  
1.5  
s
ISYNSET AMPLIFIER AND COMPARATOR (SYNCHRONOUS TO NON-SYNCHRONOUS TRANSITION)  
ISYN Accuracy  
V(SRP-SRN) = 5 mV  
–20%  
20%  
ISYNSET pin voltage  
ISYNSET rising deglitch  
ISYNSET falling deglitch  
1
20  
V
VISYNSET  
µs  
µs  
640  
LOGIC IO PIN CHARACTERISTICS (CHGEN)  
VIN(LO)  
VIN(HI)  
IBIAS  
Input low threshold voltage  
Input high threshold voltage  
Input bias current  
0.8  
1
V
2.1  
0.8  
VCHGEN = 0 to VREGN  
µA  
LOGIC INPUT PIN CHARACTERISTICS (CELLS)  
VIN(LO)  
Input low threshold voltage, 3 cells  
CELLS voltage falling edge  
0.5  
1.8  
CELLS voltage rising for MIN,  
CELLS voltage falling for MAX  
VIN(MID)  
Input mid threshold voltage, 2 cells  
V
VIN(HI)  
Input high threshold voltage, 4 cells  
CELLS voltage rising  
V = 0 to VREGN  
2.5  
–1  
IBIAS_FLOAT  
Input bias float current for 2-cell selection  
1
µA  
OPEN-DRAIN LOGIC OUTPUT PIN CHARACTERISTICS (DPMDET)  
VO(LO)  
Output low saturation voltage  
Delay, rising/falling  
Sink Current = 5 mA  
0.5  
11  
V
7
9
ms  
8
Submit Documentation Feedback  
Copyright © 2009, Texas Instruments Incorporated  
Product Folder Link(s) :bq24704  
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中文翻译

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BQ24704 替代型号

型号 品牌 替代类型 描述 数据表
BQ24740 TI

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