RT9524 RICHTEK [Richtek Technology Corporation], RT9524 Datasheet - Page 7

• Manufacturer Part Number: RT9524
• Description: Linear Single Cell Li-Ion Battery Charger IC for Portable Applications
• Manufacturer: RICHTEK [Richtek Technology Corporation]

(500mA/Div)
(500mA/Div)
(100mV/Div)
DS9524-01 April 2011
I
VLDO
CHARGER
Charger Current--USB500 mode to ISET mode
I
EN/SET
(2V/Div)
(5V/Div)
(5V/Div)
LDO
VBATT
VIN
_ac
LDO Load Transient Response
V
IN
= 5V, V
V
Time (250μs/Div)
Time (1ms/Div)
IN
BATT
= 5V, V
= 3.8V, I
BATT
LDO
= 3.8V, R
= 5mA to 50mA
ISET
= 80Ω
(200mV/Div)
(500mA/Div)
Charger Current--USB500 mode to USB100 mode
I
CHARGER
VBATT
EN/SET
(1V/Div)
(1A/Div)
(5V/Div)
EN/SET
(2V/Div)
(5V/Div)
(5V/Div)
VBATT
I
VIN
VIN
OUT
V
IN
= 5V, C
V
IN
Factory Mode
Time (50μs/Div)
Time (1ms/Div)
= 5V, V
OUT
= 44μF, I
BATT
= 3.8V, R
RT9524
OUT
www.richtek.com
= 10Ω to 2.3Ω
ISET
= 680Ω
7