RT9502 RICHTEK [Richtek Technology Corporation], RT9502 Datasheet - Page 6

• Manufacturer Part Number: RT9502
• Description: Linear Single Cell Li-Ion Battery Charger IC with Dual Input Supply
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT9502
www.richtek.com
6
ACIN
Precharge
BATT Pre-charge Rising Threshold
BATT Pre-charge Threshold
Hysteresis
Pre-Charge Current
Recharge Threshold
BATT Re-charge Falling Threshold
Hysteresis
Charge Termination Detection
ISETA Charge Termination Set
Voltage
Termination Current Ratio (default)
Logic Input/Output
CHG_S Pull Down Voltage
PGOOD Pull Down Voltage
EN Threshold
EN Pin Input Current
ISETU
Threshold
ISETU Pin Input Current
USB Charge Current & Timing
USB Charge Current
Battery Temperature Sense
TS Pin Source Current
TS Pin
Threshold
Protection
Thermal Regulation
OVP SET
Charge Current accuracy
Parameter
Logic-High Voltage V
Logic-Low Voltage V
High Voltage
Low Voltage
Low Voltage
High Voltage
I
V
ΔV
I
ΔV
V
I
V
V
I
V
V
I
I
I
I
V
V
CHG_ACIN
PCHG
TERM
EN
ISETU
CHG(USB100)
CHG(USB500)
TS
PRECH
TERM
CHG_S
PGOOD
IH
IL
ISETU_HIGH
ISETU_LOW
TS_LOW
TS_HIGH
Symbol
PRECH
RECH_L
V
V
V
TBD; I
TBD; I
V
V
V
I
V
I
V
Falling
Rising
Internal Default
V
V
SETU
SETU
BATT
BATT
REG
EN
ISETU
USB
USB
TS
BATT
BATT
= 1.5V
= 2V
= 5V; V
= 5V; V
− V
= 0V
= 5V
CHG_S
PGOOD
= 3.8V; R
= 2V
Test Conditions
= 4.2V
= 4.2V
=2V
BATT
= 5mA
BATT
BATT
= 5mA
ISET
= 3.5V,
= 3.5V,
= 1.5kΩ
0.485
2.45
Min
200
400
2.6
1.5
1.5
50
60
96
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DS9502-02 April 2011
Typ
500
100
100
250
220
450
102
125
2.8
0.5
2.5
6.5
10
10
65
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0.515
Max
2.55
200
150
275
100
500
108
0.4
0.4
12
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3
2
2
Units
mA
mV
mV
mV
mV
mV
mA
uA
uA
uA
°C
%
%
V
V
V
V
V
V
V
V