參數(shù)資料
型號(hào)： U2402B-X
廠商： TEMIC SEMICONDUCTORS
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PDIP18
封裝： DIP-18
文件頁(yè)數(shù)： 1/18頁(yè)
文件大?。?/td> 294K
代理商： U2402B-X
U2402B
Rev. A4, 08-Nov-99
1 (18)
Fast-Charge Controller for NiCd/NiMH Batteries
Description
The fast-charge battery controller circuit, U2402B, uses
bipolar technology. The IC enables the designer to create
an efficient and economic charge system. The U2402B
incorporates
intelligent
multiple-gradient
battery-
voltage monitoring and mains phase control for power
management. With automatic top-off charging, the
integrated circuit ensures that the charge device stops
regular charging before the critical stage of overcharging
is achieved. It has two LED driver indications for charge
and temperature status.
Features
D Multiple gradient monitoring
D Temperature window (Tmin/Tmax)
D Exact battery voltage measurement without charge
D Phase control for charge-current regulation
D Top-off and trickle charge function
D Two LED outputs for charge status indication
D Disabling of d2V/dt2 switch-off criteria
during battery formation
D Battery-voltage check
Applications
D Portable power tools
D Laptop/notebook personal computer
D Cellular/cordless phones
D Emergency lighting systems
D Hobby equipment
D Camcorder
Block Diagram
Gradient
d2V/dt2 and –dV
5 (5)
Sync
R
Phase control
18 (20) 17 (19)
16 (18)
Power supply
VS = 8 to 26 V
Trigger output
V
i
Power - on control
VRef
6.5 V/10 mA
14 (15)
Oscillator
160 mV
Ref
Temp. control
Tmax
Sensor
Battery
detection
VRef = 5 V
Status control
Scan path
VBatt Monitor
0.1 to 4 V
Charge break
output
Control unit
13 (14)
12 (13)
11 (12)
3 (3)
10 (11)
6 (6)
7 (8)
8 (9)
9 (10)
4 (4)
1 (1)
15 (17)
2 (2)
C
( ) SO 20, Pins 7 and 16 n.c.
Figure 1. Block diagram
Order Information
Extended Type Number
Package
Remarks
U2402B-x
DIP18
Tube
U2402B-xFL
SO20
Tube
U2402B-xFLG3
SO20
Taped and reeled
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