RT9527 RICHTEK [Richtek Technology Corporation], RT9527 Datasheet - Page 9

• Manufacturer Part Number: RT9527
• Description: Single Cell Li-Ion Battery Charger with Adjustable Charging Current for Portable Applications
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Copyright
DS9527-00 May 2012
6.65
6.60
6.55
6.50
6.45
6.40
6.35
6.30
6.25
©
12
70
60
50
40
30
20
10
9
6
3
0
2012 Richtek Technology Corporation. All rights reserved.
0
-50
-50
I
OVP Threshold Voltage vs. Temperature
CHG
2
Pre-Charge Current vs. Battery Voltage
V
V
V
IN
IN
IN
2.1
= 5V, V
= 5V, V
= 5V, R
Thermal Regulation vs. Temperature
-25
-25
2.2
BAT
ISET
BAT
2.3
0
0
= 3.7V, I
= 3.7V
= 1kΩ
Battery Voltage (V)
Temperature (°C)
Temperature (°C)
2.4
25
25
Rising
CHG
Falling
2.5
= 10mA
50
50
2.6
2.7
75
75
2.8
100
100
2.9
125
125
3
is a registered trademark of Richtek Technology Corporation.
4.300
4.275
4.250
4.225
4.200
4.175
4.150
4.125
4.100
700
600
500
400
300
200
100
800
750
700
650
600
550
500
450
400
Battery Regulation Voltage vs. Temperature
0
-50
I
CHG
0
3
Fast-Charge Current vs. Battery Voltage
V
V
V
IN
IN
IN
3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9
10
Thermal Regulation vs. Temperature
= 5V, V
= 5V
= 5V, R
-25
20
BAT
ISET
0
= 3.7V, I
Battery Voltage (V)
30
= 1kΩ
Temperature (°C)
Temperature (°C)
25
40
CHG
= 600mA
50
50
RT9527
60
www.richtek.com
75
70
100
80
4
125
4.1
9
90