参数资料
型号: MC33342PG
厂商: ON Semiconductor
文件页数: 1/16页
文件大小: 0K
描述: IC CTRLR BATTERY FAST CHRG 8DIP
产品变化通告: Product Obsolescence 14/Apr/2010
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: 3.25 V ~ 18 V
工作温度: -25°C ~ 85°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
其它名称: MC33342PGOS
MC33340, MC33342
Battery Fast Charge
Controllers
The MC33340 and MC33342 are monolithic control IC’s that are
specifically designed as fast charge controllers for Nickel Cadmium
(NiCd) and Nickel Metal Hydride (NiMH) batteries. These devices
feature negative slope voltage detection as the primary means for fast
charge termination. Accurate detection is ensured by an output that
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momentarily interrupts the charge current for precise voltage
sampling. An additional secondary backup termination method can
be selected that consists of either a programmable time or temperature
limit. Protective features include battery over and undervoltage
8
MARKING
DIAGRAMS
detection, latched over temperature detection, and power supply input
undervoltage lockout with hysteresis. Fast charge holdoff time is the
only difference between the MC33340 and the MC33342. The
8
PDIP?8
P SUFFIX
CASE 626
MC3334xP
AWL
YYWW
NB SUFFIX
CASE 751
G
MC33340 has a typical holdoff time of 177 seconds and the
MC33342 has a typical holdoff time of 708 seconds.
? Negative Slope Voltage Detection with 4.0 mV Sensitivity
? Accurate Zero Current Battery Voltage Sensing
? High Noise Immunity with Synchronous VFC/Logic
? Programmable 1 to 4 Hour Fast Charge Time Limit
? Programmable Over/Undertemperature Detection
? Battery Over and Undervoltage Fast Charge Protection
? Power Supply Input Undervoltage Lockout with Hysteresis
? Operating Voltage Range of 3.25 V to 18 V
? 177 seconds Fast Change Holdoff Time (MC33340)
? 708 seconds Fast Change Holdoff Time (MC33342)
? Pb?Free Packages are Available
8
1
1
x = 0 or 2
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb?Free Package
1
8
SOIC?8
3334x
ALYWX
1
PIN CONNECTIONS
V sen Input 1 8 V CC
V sen Gate Output 2
7 t1/T ref High
DC
Input
V CC
8
Fast/Trickle Output 3
6 t2/T sen
V sen
Internal Bias
Voltage to
Frequency
Undervoltage
Lockout
V CC
Gnd 4
(Top View)
5 t3/T ref Low
1
Converter
Over
Temp
ORDERING INFORMATION
Battery
Detect
Ck
High
F/V
R
Over
Q
R
S
Latch
Temp
Detect
Battery
Pack
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
Low
Under
? D V Detect
t1
t1/T ref High
7
V sen
Gate
2
3
Counter
Timer
V sen
Gate
t2
t3
t2/T sen
6
t3/T ref Low
5
Fast/
Trickle
F/T
t/T
Time/
V CC
Temp Select
GND
4
This device contains 2,512 active transistors.
Figure 1. Simplified Block Diagram
? Semiconductor Components Industries, LLC, 2005
July, 2005 ? Rev. 7
1
Publication Order Number:
MC33340/D
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