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GR5302 Schematic ( PDF Datasheet ) - grenergy

Teilenummer GR5302
Beschreibung Monitor and Timing Management
Hersteller grenergy
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Gesamt 13 Seiten
GR5302 Datasheet, Funktion
GR5302
Monitor and Timing Management for 4-Loop NiMH
Battery Charger
Features
Charges 1 to 4 NiMH packs
Detects and avoids charging alkaline cells
Monitors voltage, temperature and time for
safety and secondary termination
Drivers PNP type pass element
Pre-charge qualification for detecting shorted,
damaged, or deeply depleted cells
Automatic recharge keeps batteries charged
Optional temperature qualified charging
Applications
NiMH battery charger for AAA/AA cells
Description
The GR5302 is ideal for standalone charging of
4-loop NiMH packs (AA or AAA NiMH loose cells),
NiCd cells can also be charged. Temperature,
voltage and charge time are monitored to provide
proper fast/slow charging control algorithms for
Nickel Metal Hydride (NiMH) batteries. The GR5302
detects the battery chemistry and proceeds with the
optimal charging and termination algorithms. This
process eliminates undesirable undercharged or
overcharged conditions and allows accurate and
safe termination of fast/slow charge. Battery tests
are included to detect defective or inappropriate
cells such as alkaline primary batteries. The
GR5302 series support four loops charging topology,
with four independent monitoring and controls.
Ordering and Marking Information
SOP-14/16/18
Code 1 8 9 A B
GH IJ
Year 2008 2009 2010 2011
2016 2017 2018 2019
Code 2 1 2 3 4 ● ● ● 9 A B C
Month Jan. Feb. Mar. Apr.
Sep. Oct. Nov. Dec.
Grenergy OPTO Inc. reserves the right to make changes to improve reliability or manufacture ability without
notice, and advise customers to obtain the latest version of relevant information to verify before placing
orders.
2010.04 Ver. 1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1






GR5302 Datasheet, Funktion
GR5302
Electrical Characteristics (TA = 25 )
Parameter
Conditions Symbol
Min
Typ
Max Unit
POWER SUPPLY
Operating voltage
Supply current
Battery voltage input
LED sink current
LED driver current
Thermistor input
PROTECTION VOLTAGE
Battery short voltage
VCC = 5V
GR5302AA
GR5302AT
GR5302AS
GR5302DA
GR5302DT
GR5302DS
VCC = 5V
VCC = 5V
VCC
ICC
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
I LED-SINK
I LED-Driver
VTH
Vshort
4.5
0.4
0.5
0.5
0.5
1
1
1
2.5
2.5
1.07
0.45
5.0
0.5
3
3
1.12
0.5
5.5
0.6
2
2
2
4
4
4
3.5
3.5
1.17
0.55
V
mA
V
V
V
V
V
V
mA
mA
V
V
GR5302AA Vprimary 1.575
1.6
1.625
V
GR5302AT Vprimary 1.575
1.6
1.625
V
Primary battery voltage
GR5302AS Vprimary 1.575
1.6
1.625
V
GR5302DA Vprimary 3.15 3.2 3.25 V
GR5302DT Vprimary 3.15 3.2 3.25 V
GR5302DS Vprimary 3.15 3.2 3.25 V
GR5302AA Vneck
1.395
1.42
1.445
V
GR5302AT Vneck
1.395
1.42
1.445
V
Battery neck voltage
GR5302AS
GR5302DA
Vneck
Vneck
1.395
2.79
1.42
2.84
1.445
2.89
V
V
GR5302DT Vneck
2.79
2.84
2.89 V
GR5302DS Vneck
2.79
2.84
2.89 V
SAFE TIMER
GR5302AA, GR5302AS, GR5302DA, GR5302DS
Safe Charge Timer
TCK = HI
Timer
11.5
12
12.5 hour
Safe Charge Timer
TCK = LO
Timer
5.5
6
6.5 hour
GR5302AT, GR5302DT (Note 1)
Safe Charge Timer
TCK = HI
Timer
2 12 18
(RT=200K) (RT=450K) (RT=700K)
hour
Safe Charge Timer
TCK = LO
Timer
169
(RT=200K) (RT=450K) (RT=700K)
hour
Note 1: The timer of GR5302AT, GR5302DT could be any value between min and max by changing RT value.
2010.04 Ver. 1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
6

6 Page









GR5302 pdf, datenblatt
Package Information
GR5302
SOP-18
SYMBOL
MILLIMETERS
INCHES
MIN.
MAX.
MIN.
MAX.
A 2.65 0.104
A1
0.10
0.30
0.004
0.012
A2 2.05
0.081
b
0.31
0.51
0.012
0.020
c
0.20
0.33
0.008
0.013
D
11.35
11.75
0.447
0.463
E
10.10
10.50
0.398
0.413
E1
7.40
7.60
0.291
0.299
e 1.27 BSC
0.050 BSC
h
0.25
0.75
0.010
0.030
L
0.40
1.27
0.016
0.050
θ 0o 8 o 0o 8 o
Note: 1. Followed from JEDEC MS-013 AB.
2. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate
burrs shall not exceed 6 mil per side.
3. Dimension “E1” does not include inter-lead flash or protrusions. Inter-lead flash and protrusions shall
not exceed 10 mil per side.
2010.04 Ver. 1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
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