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74LV4799PWDH-T PDF预览

74LV4799PWDH-T

更新时间： 2024-02-11 07:07:23
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管
页数 文件大小 规格书
18页 179K
描述
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, Power Management Circuit

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74LV4799PWDH-T 技术参数

生命周期：Obsolete包装说明：TSSOP,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G16长度：5 mm
信道数量：1功能数量：1
端子数量：16最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压 (Vsup)：6 V
最小供电电压 (Vsup)：0.9 V标称供电电压 (Vsup)：1.2 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
宽度：4.4 mmBase Number Matches：1

74LV4799PWDH-T 数据手册

 浏览型号74LV4799PWDH-T的Datasheet PDF文件第1页浏览型号74LV4799PWDH-T的Datasheet PDF文件第3页浏览型号74LV4799PWDH-T的Datasheet PDF文件第4页浏览型号74LV4799PWDH-T的Datasheet PDF文件第5页浏览型号74LV4799PWDH-T的Datasheet PDF文件第6页浏览型号74LV4799PWDH-T的Datasheet PDF文件第7页 
Philips Semiconductors  
Product specification  
Timer for NiCd and NiMH chargers  
74LV4799  
FEATURES  
DESCRIPTION  
The 74LV4799 is a low-voltage Si-gate CMOS control IC for battery  
management. It consists of:  
• Wide supply voltage range of 0.9 V to 6 V allows 1 to 4-cell  
applications  
• 17-stage divider  
• 10-stage up/down counter  
• Control logic  
• Integrated precision oscillator (using external timing components)  
• Automatic power-ON reset  
• Scan test facilities  
• 10 V allowed on special inputs  
• Supports virtually all battery chargers, including switched-mode  
power supplies  
• On-chip timer calculates the actual capacity of the battery by  
measuring the charger time, discharge time and self-discharge time  
• Automatic switch-over to trickle charge after completion of the  
charge time  
• Battery charging/full indication output (LED)  
• Battery-low indication output (MOLLI)  
• Open-drain-N outputs for driving the load transistor  
• Can be adjusted for use with different types of batteries:  
– Charge time: 4 to 16 hours  
– Discharge time: 15 minutes to 4.7 hours  
– Self-discharge time: 50 to 100 days  
Battery management with the 74LV4799 is based on the principle of  
time measurement. It measures the charge time, discharge time and  
self-discharge time by means of a very accurate on-chip oscillator, a  
divider and an up/down counter.  
• Battery status indication included:  
– LED output for charging/full indication  
– MOLLI output for battery-low indication  
• LED mode select allows two different methods of indication  
• Automatic power-ON reset  
PIN CONFIGURATION  
• Low-power consumption  
• Requires only a few peripheral components  
• Very accurate on-chip oscillator  
1
LED  
EN  
16  
15  
V
CC  
2
SCI  
• Scan test facilities included  
3
4
5
6
14  
13  
12  
11  
EN  
SCAN  
• I category: non-standard.  
CC  
V
in  
I
OSC  
APPLICATIONS  
PWRS  
R
R
S
D
• Time-controlled NiCd and NiMH low-current chargers  
MOLLI/SCO  
• Domestic appliances such as rechargeable battery shavers,  
7
8
10  
9
SEL  
R
C
electric toothbrushes etc.  
• Portable equipment such as notebook PCs, laptop PCs, camera  
GND  
DIS  
flash units etc.  
• Personal communications like cordless telephones, personal  
SV01643  
mobile radios, pagers, etc.  
QUICK REFERENCE DATA  
GND = 0V; T  
= 25°C  
amb  
SYMBOL  
PARAMETER  
CONDITIONS  
TYPICAL  
TYPICAL  
TYPICAL  
UNIT  
V
CC  
DC supply voltage  
0.9  
6.0  
V
V
CC  
= 3.3V; self-discharge mode;  
I
Operating supply current  
Oscillator frequency tolerance  
R = 100 kW;  
C = 220nF  
1
36  
µA  
CC  
s
Df  
V
CC  
= 1 to 6 V  
7
%
ORDERING INFORMATION  
PACKAGES  
TEMPERATURE RANGE OUTSIDE NORTH AMERICA  
NORTH AMERICA  
74LV4799 N  
CODE  
16-Pin Plastic DIL  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
74LV4799 N  
74LV4799 D  
74LV4799 DB  
74LV4799 PW  
SOT38-4  
SOT109-1  
SOT338-1  
SOT403-1  
16-Pin Plastic SO  
74LV4799 D  
16-Pin Plastic SSOP Type II  
16-Pin Plastic TSSOP Type I  
74LV4799 DB  
74LV4799PW DH  
2
1998 Apr 20  
853-2058 19258  
1234567...18

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