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RT9503 Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT9503
Description  Fully Integrated Linear Single Cell Li-Ion Battery Charger with Power Path
PDF  15 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9503 Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT9503
6
DS9503-03 April 2011
www.richtek.com
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Precharge
BATT Pre-charge Threshold
VPRECH
2.7
2.8
2.9
V
BATT Pre-charge Threshold
Hysteresis
ΔVPRECH
60
100
140
mV
Pre-Charge Current
IPCHG
VBATT = 2V
8
10
12
%
Recharge Threshold
BATT Re-charge Falling Threshold
Hysteresis
ΔV
RECH_L
50
95
140
mV
Charge Termination Detection
Termination Current Ratio
(Note5) ITERM
VBATT = 4.2V
--
10
--
%
Logic Input/Output
CHG_S Pull Down Voltage
VCHG_S
ICHG_S = 5mA
--
213
--
mV
AC_PGOOD Pull Down Voltage
VPGOOD
IPGOOD = 5mA
--
213
--
mV
PGOOD Pull Down Voltage
VPGOOD
TBD; IPGOOD = 5mA
--
65
--
mV
Logic-High Voltage
VIH
1.5
--
--
V
EN Threshold
Logic-Low Voltage
VIL
--
--
0.4
V
EN Pin Input Current
IEN
--
--
1.5
uA
High Voltage
VISETU_HIGH
1.5
--
V
ISETU
Threshold
Low Voltage
VISETU_LOW
--
--
0.4
V
ISETU Pin Input Current
IISETU
--
--
1.5
uA
USB Charge Current & Timing
Soft-Start Time
TSS
VISETA from 0V to 2.5V
--
100
--
us
USB Charge Current
ICHG_USB
VACIN = 3.5V, VUSB = 5V,
VBATT =3.5V, ISETU = 5V
400
450
500
mA
USB Charge Current
ICHG_USB
VACIN = 3.5V, VUSB = 5V,
VBATT = 3.5V, ISETU = 0V
60
80
100
mA
Timer
TIME Pin Source Current
ITIME
VTIMER = 2V
--
1
--
uA
Pre-charge Fault Time
TPCHG_F
CTIMER = 0.1uF, fCLK = 7Hz
1720
2460
3200
s
Charge Fault Time
TFCHG_F
CTIMER = 0.1uF, fCLK = 7Hz
13790
19700
25610
s
Battery Temperature Sense
TS Pin Source Current
ITS
VTS = 1.5V
96
102
108
uA
High Voltage
VTS_HIGH
0.485
0.5
0.515
V
TS Pin
Threshold
Low Voltage
VTS_LOW
2.45
2.5
2.55
V
Protection
Thermal Regulation
--
125
--
°C
OVP SET Voltage
Internal Default
--
6.5
--
V
Power Path Controller
BAT_ON Pull Low
As SYS Falling, VBATT = 4V,
SYS-BAT
−150
--
−20
mV
To be continued



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