external component count make the GS7001 adjustable. The GS7001 is monitored by
F e a t u r e s
Pret 8.4V Charge Voltage with 1%
Accuracy
Programmable Charge Current Up to 1A Pre-Charging, the Charge Current is
adjustable
Ideal for Dual-Cell （8.4V ）Li-Ion Batteries Constant -Current Charging, the Charge
Current is adjustable
Constant-Voltage Charging Constant-Current/Constant-Voltage
Charging with Temperature Monitoring
Automatic Recharge
Double LEDs Charge Status Indication Available in SOP-8L Package
A p p l i c a t i o n s
Charger for Li-Ion Coin Cell Batteries Portable MP3 Players, Wireless Headts
Multifunction Wristwatches Bluetooth Applications
Input Voltage:9-10V DC
Shouding
GS7001-84The GS7001 is available in the SOP-8L package
with a single resistor. GS7001 determines the The GS7001 is a complete constant-current/ D e s c r i p t i o n
constant voltage linear charger for cell lithium-ion batteries. Its package and low ideally suited for portable applications. The charge current can be programmed externally charge mode by detecting the battery voltage: Pre-charge, constant current charging, constant voltage charging. The charge current of pre-charging and constant –current charging is temperature monitor during the constant-current and constant-voltage charging. There are two LEDs indicate the charge mode.
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Figure 1: Typical Application Circuit with Two LEDs苹果红了
＊The charge current I O(REG) =V CS/R SET (V CS is usually 200mV).Note that OFF indicates the open-drain transistor is turned off.
＊The rever-blocking protection diode is optional. In addition, the rever-leakage current of the diode should be kept as small as possible.
Condition LED1 LED2
Battery charging ON OFF
Charge complete OFF ON
Ordering Information
GS7001
SOP-8L
T y p i c a l C h a r g e P r o f i l e PIN NUMBER
SOP-8L
PIN NAME DESCRIPTION
1 CHRG1八阵图古诗
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Open-Drain Charge Status
Output
2 TS Temperature Sen
3 GND Ground
4 VOUT Charge Current Output
5 PDRI
Charge Current Monitor and
Shutdown Pin
6 CS Charge Current Program
7 CHRG2
Open-Drain Charge Status
Output
8 VIN Positive Input Supply Voltage.
****
The GS7001 is guaranteed to meet performance specif
(N o t e 1) Input Supply Voltage (VIN) ....................................................................................... –0.3V to 12V TS 、CHRG1、CHRG2、PDRI 、CS ................................................................... – 0.3V to VIN + 0.3V VOUT Pin Current .................................................................................................................... 1A Maximum Junction Temperature ......................................................................................... 125℃ Operating Ambient Temperature Range (Note 2)................................................... –40℃ to 85℃ Storage Temperature Range …………………………………………….................. –65 ℃to 125℃ Lead Temperature (Soldering, 10 c)................................................................................. 300℃
Note 1: Absolute Maximum Ratings are tho values beyond which the life of a device may be impaired. Note 2: ications from 0°C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls.
Operating Conditions: T A =25℃.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN Input Supply Voltage
I IN Input Supply Current Standby Mode (Charge Terminated) l
0.25 mA
I SLEEP Sleep Current Sum of currents into VOUT pin, VIN=0
25 µA
Battery Voltage Regulation Constant-current Charge V O(REG) Output voltage
8.317 8.4 8.484 V V （CS ）
Current regulation threshold Voltage at pin CS , relative to VIN
180
200
220
mV
Trickle Charge V TRIKL Trickle Charge Threshold Voltage V BAT < V TRIKL , R SET =0.33Ω. 5.6 6 6.2 V I TRIKL
Trickle Charge
Current
V BAT Rising, R SET =0.33Ω.
60
mA
V RCH comparator （Battery Recharge Threshold ） V （RCH ）
Recharge
Battery
Threshold Voltage
V FLOAT - V RECHRG
红楼梦背景朝代V O(REG)
-400m V
V
Temperature Sen Comparator V TS-COLD TS Pin Threshold Voltage （Cold ） V TS from Low to High 2.486 V V TS- HOT TS
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Threshold
Voltage （Hot ）
V TS from High to Low
小学数学教学策略0.485 V I TS
TS Pin Output Current
85
uA
99.510
V
