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PDF ( 数据手册 , 数据表 ) LC709501F

零件编号 LC709501F
描述 Power Bank Controller
制造商 ON Semiconductor
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LC709501F 数据手册, 描述, 功能
LC709501F
Power Bank Controller with
USB Type-C & Quick Charge™ 3.0
for 1-Cell Li-Ion and Li-Poly Battery
Overview
LC709501F is a Lithium ion switching charger controller for Power
Bank. This device has all functions to control Power Bank application.
It can control Type-C port control IC and includes Quick Charge 3.0
HVDCP. The built-in switching controller can output from 5 V up to 12
V for Quick Charge. The high power output for USB Type-C and Quick
Charge is possible with appropriate external MOSFETs.
www.onsemi.com
Features
Easy power scaling with external MOSFETs.
Buck charge / Boost charge
Supports Quick Charge 3.0 HVDCP Class A. 5 V up to 12 V
Supports USB type-C DRP with Port control IC.
Prepared firmware supports various combination of USB port.
Supports USB BC1.2
Controls an external Boost-IC for 2nd USB output
Battery level gauging
Status & Battery level display with 4 LEDs
Boost auto start-up
Thermistor sensing function
Over voltage / Over current detection
JEITA compliance Battery management
Safety timer
Low quiescent current : 15 A at Low power mode
QFN52 6x6, 0.4P
Pb-Free, Halogen Free type
ORDERING INFORMATION
See detailed ordering and shipping information in the
package dimensions section on page 30 of this data sheet
Applications
Power Bank
USB-related charging application
© Semiconductor Components Industries, LLC, 2016
September 2016 - Rev. 0
1
Publication Order Number :
LC709501F/D







LC709501F pdf, 数据表
LC709501F
Electrical Characteristics at Ta 25C
Buck charge
Parameter
Symbol
Frequency
Battery capacity range
Quiescent input current
Pre-Charge Current range
Pre-Charge Voltage Threshold
Constant Charge Current range
Termination Current range
FBC
ICHROFF
IPRE
VPRE
ICHG
ITERM
Termination Battery Voltage
VBAT over voltage detection
Drop of Termination Battery
Voltage at hot temperature
Cold temperature threshold at
Buck charge
Cool temperature threshold at
Buck charge
Warm temperature threshold at
Buck charge
Hot temperature threshold at Buck
charge
VCHG
VBATOVP
VCHGH
TCOLD
TCOOL
TWARM
THOT
Pin / Conditions
VBUS1, VBUS2, Charge mode Switching
OFF current VBUS = 5 V
SENB+,SENB,10 mresistor
VBAT
SENB+,SENB,10 mresistor
VBAT = 3.7V
SENB+,SENB,10 mresistor
VBAT, 4.2 V battery type
VBAT, 4.35 V battery type
VBAT rising
VBAT
min
2000
Ratings
typ
150
200
1000
200
3.25
4.2
4.35
4.6
200
0
10
45
60
max
24400
3
800
6000
800
Unit
kHz
mAh
mA
mA
V
mA
mA
V
V
V
mV
C
C
C
C
Boost charge
Parameter
Boost frequency
Output Voltage Range
Termination boost current
Maximum output current
Cold temperature threshold at
Boost charge
Hot temperature threshold at Boost
charge
Symbol
FBT
VBST
IBTERM
IOUTMAX
TCOLD2
THOT2
Pin / Conditions
VBUS1, VBUS2, 5 V mode
VBUS1, VBUS2, 9 V mode
VBUS1, VBUS2, 12 V mode
SENV1+, SENV2+, SENV3+, SENV,
20 mresistor
SENV1+, SENV2+, SENV, 20 m
resistor
Output voltage 7.5 V
7.5 V < Output voltage 10.5 V
10.5 V < Output voltage
SENV3+, SENV, 20 mresistor
min
4.75
8.2
10.9
Ratings
typ
150
5
9
12
200
max
5.25
9.8
13.1
Unit
kHz
V
V
V
mA
3000
2300
1800
2000
-20
60
mA
mA
mA
mA
C
C
Electrical Characteristics at Ta  40 to +85C, VDD = 2.8 V to 5.5 V, Ta 25C for typical values.
Parameter
LED sink current
VBUS input detection voltage
High level input voltage
Symbol
ILED
VBDET
VIH(1)
VIH(2)
Pin / Conditions
LED1, LED2, LED3, LED4
VBUS1, VBUS2 rising
PBT
SDA, SCL, INT
Ratings
min typ
10
0.3*VDD
+0.7
1.4
Low level input voltage
VIL(1)
VIL(2)
PBT
SDA, SCL, INT
VSS
Input voltage hysteresis
VHYS
SDA, SCL
0.1VDD
High level output voltage
Low level output voltage
Pull-up resistance at turn on
VOH
VOL(1)
VOL(2)
RPU
TSW,BSTEN IOH = 0.4 mA
BSTEN IOL = 0.4 mA
SDA, SCL, INT IOL = 3.0 mA
FGADJ
VDD0.4
50
Oscillation frequency for USB host
FXT XT1, XT2
12
max
4
VDD
0.15VDD
+0.4
0.5
0.4
0.4
Unit
mA
V
V
V
V
V
V
V
V
V
k
MHz
www.onsemi.com
8







LC709501F equivalent, schematic
LC709501F
Buck charge
VBAT
Precharge
VCHG
Constant 
current  charge
Constant
voltage  charge
IBAT
Completed
ICHG
VPRE
IPRE
ITERM
t
Figure 12: Buck charge states
The buck charge is configured by three states: pre-charge,
constant current charge, and constant voltage charge. Figure 12
shows the flow of battery charge.
Pre-charge mode
Pre-charge is executed when battery voltage is below VPRE at
the start of buck charge. In this case charging current is limited
by IPRE. If battery voltage exceeds VPRE, it transitions to the
constant current charge mode.
Constant current charge mode
Charging with constant current. Charging current is limited by
ICHG and input current from USB port. (Refer “Input over
current protection”) When battery voltage reaches VCHG, it
transitions to the Constant voltage charge mode.
Constant voltage charge mode
Charging with constant voltage. Charging current will decrease
as it gets closer to the full charge. When charge current decreases
to the termination current, the charge operation will complete.
The termination current is set by ITERM.
Safety timer
If the continuous battery charging time exceeds TCMAX, it will
force-quit the charging operation. It will start charging again by
either detecting Re-connect at the supply source or push button is
pressed long.
Buck charge condition vs temperature
This device changes charge voltage and charge current according
to the battery temperature measured by the external thermistor.
Refer Figure 13. If the temperature exceeds TWARM,
Termination Battery Voltage decreases in VCHGH. If the
temperature exceeds THOT, it will stop charging. If the
temperature drops below TCOOL, charge current will become a
half of the constant charge current ICHG value. If the
temperature drops below TCOLD, charge stops. Buck charge
does not re-start until the supply source is unplugged/plugged if
even once the temperature is over THOT or below TCOLD.
www.onsemi.com
16










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