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PDF ST-828 Data sheet ( Hoja de datos )
| Número de pieza | ST-828 | |
| Descripción | NiCd / NiMH / Li-Ion Battery Twin Charge Control IC | |
| Fabricantes | Chips Garden | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ST-828 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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ST-828
NiCd / NiMH / Li-Ion Battery
Seq. Twin Charge Control IC
Main Function
General Description
For NiCd / NiMH battery apply
constant-current (C.C.) charge
technique and provide -∆V/∆t,
Timer, V-Max, terminate-
condition detection Apply
trickle charge current after
battery was full-charged.
For Li-Ion battery apply
constant-voltage (C.V.) charge
technique to ensure safety and
prevent battery from damage.
Provide battery chemistry type
input selection, allow system to
identify battery type via proper
interface circuit.
Support LED/LCD display.
Provide battery power indicator
(LCD mode) to illustrate the
battery power in percentage.
Support battery discharge
function.
16 Pin SOP Package
ST-828 has the most simplest and economic way by using the
LM339 associate with advance software program to achieve the
goal of constant-current and constant-voltagecontrol. Especially
suitable for the up-to-date Li-Ion battery charge control and
MiMH/NiCd battery are also available.
ST-828 for the phone-set which built-in charge-control function
itself, provide a simplest solution to detect the charge status of
phone-set. Basically, the phone-set will has higher priority to charge
than the battery if both in their own slot. System will monitor the
charging status of phone-set and detect the "charge-terminate"
situation of phone-set and then transfer the charge process to the
battery.
ST-828 support LED/LCD indicators could illustrate the condition
during charging (Red-LED for Rapid-Charge, Green-LED for
Full-Charged in LED display mode, and 25%, 50%, 75%, 100% for
charging power indicator in LCD display mode).
ST-828 is the best cost performance IC to achieve the goal of
higher quality and lower the cost of twin charger solution.
Display Reference
LCD Display
POWERLOGO
PH 25% 50% 75% 100%
LED Display
RGRG
/AFAST /AFULL /BFAST /BFULL
All information may subject to change without notice, Contact us for latest Information !!!
(C) 1999 Chips Garden Enterprise Co., Ltd.
Page 1 of 2
March 13, 2000
1 page  
Pin Functions and Descriptions
ST-828
(2) APHONE : Phone-set charge indicator output terminal.
In LCD display mode, Pin 7 was defined as phone-set charge indicator output. Since the
4.7KΩ was not connected; hence it can be connected to phone-set segment of LCD panel.
Pin 8 CTRL : A/D conversion control output terminal.
Pin 8
5.1K/1%
To A/D Channel
104P
BATB
(Mylar/X7R)
Pin 9 (1) /BFULL Battery full-charged indicator output terminal. (LED mode)
(2) B25% Battery charge 25% power indicator output terminal. (LCD mode)
(3) OPTION1 MCU option1 selection input terminal.
Pin 10 (1) /BFAST Battery fast charge indicator output terminal. (LED mode)
(2) B50% Battery charge 50% power indicator output terminal. (LCD mode)
(3) OPTION2 MCU option2 selection input terminal.
Pin 11 (1) /AFULL Phone-set full-charged indicator output terminal. (LED mode)
(2) B75% Battery charge 75% power indicator output terminal. (LCD mode)
(3) OPTION3 MCU option3 selection input terminal.
Pin 12 (1) /AFAST Phone-set fast charge indicator output terminal. (LED mode)
(2) B100% Battery charge 100% power indicator output terminal. (LCD mode)
(3) OPTION4 MCU option4 selection input terminal.
Pin 13 (1) CHB : Battery charge control output terminal.
Pin 13 in high-level state indicate battery was in charge-on-duty.
Fast Charge
Trickle Charge
Duty Cycle=90%
Duty Cycle=10%
(2) /PULSE : Phone-set charge signal detection terminal.
By detecting the charge signal issued from phone-set, the system could identify the
charging progress of phone-set and determine when the phone was full-charged, then the
system could transfer to another mode in order to charge the battery in the rear-slot.
In the time when the phone-set was charging, system still could identify the charging
pattern to look for the intervals to charge battery if phone-set was in charge-off-duty state.
All information may subject to change, Contact us for latest information !!!
(C) 1999 Chips Garden Enterprise Co., Ltd.
Page 3 of 7
March 13, 2000
5 Page 
Package outline drawings
SOP16: plastic small outline package; 16 leads; body width 3.9 mm
y
Z
16
D
pin 1 index
1
e
EA
X
c
HE
vM A
9
A2
A1
8
bp
wM
Q
(A3)
A
Lp
L
detail X
θ
0 2.5 5 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
UNIT max. A1 A2 A3 bp
c
D (1) E (1)
e
HE
L
Lp
Q
v
mm
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
1.27
6.2
5.8
1.05
1.0
0.4
0.7
0.6
0.25
inches
0.069
0.010
0.004
0.057
0.049
0.01
0.019 0.0100 0.39
0.014 0.0075 0.38
0.16
0.15
0.050
0.244
0.228
0.041
0.039
0.016
0.028
0.020
0.01
w y Z (1)
0.25
0.01
0.1
0.7
0.3
0.004
0.028
0.012
θ
8o
0o
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet ST-828.PDF ] | |
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