RT9511 RICHTEK [Richtek Technology Corporation], RT9511 Datasheet - Page 11

• Manufacturer Part Number: RT9511
• Description: Fully Integrated Battery Charger with Two Step-Down Converters
• Manufacturer: RICHTEK [Richtek Technology Corporation]

DS9511-01 April 2011
(5V/Div)
(5V/Div)
(5V/Div)
(5V/Div)
(1A/Div)
(5V/Div)
(5V/Div)
(1A/Div)
V
V
V
V
V
EN
ACIN
ACIN
I
BATT
I
SYS
SYS
IN
IN
2.0
1.6
1.2
0.8
0.4
0.0
ISETU Threshold Voltage vs. USB Voltage
4.5
4.8
V
BATT
5.1
= 3.7V, I
ACIN Power Off
Rising
Falling
ACIN Power On
Time (500μs/Div)
USB Voltage (V)
Time (1ms/Div)
5.4
SYS
I
SYS
= 500mA, I
= 500mA, I
5.7
Charger
Charger
6
V
BATT
= 500mA
= 500mA
6.3
= 3.8V
6.6
(5V/Div)
(5V/Div)
(5V/Div)
(5V/Div)
(1A/Div)
(5V/Div)
(5V/Div)
(1A/Div)
V
V
V
V
V
I
EN
USB
BATT
I
USB
SYS
USB
SYS
4.26
4.24
4.22
4.20
4.18
4.16
4.14
IN
-25 -15
Regulation Voltage vs. Temperature
V
-5
BATT
5
= 3.7V, I
USB Power Off
Temperature (°C)
USB Power On
Time (500μs/Div)
15
Time (1ms/Div)
SYS
I
25
SYS
ACIN = 5V, I
= 500mA, I
= 500mA, I
35
45
RT9511
www.richtek.com
Charger
Charger
55
Charger
65
= 500mA
= 500mA
= 500mA
75
11
85