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LC709501F Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer LC709501F
Beschreibung Power Bank Controller
Hersteller ON Semiconductor
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Gesamt 30 Seiten
LC709501F Datasheet, Funktion
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 Datasheet, Funktion
LC709501F
Table 1. Pin Function (continue)
No.
Pin Name
I/O
Description
15
DETV2(TEST)
- Keep this pin OPEN.
16
IINSEL/PBT
I Push button input.
17
LED1
O Displays battery level. This is an open drain pin.
18
LED2
O Displays battery level. This is an open drain pin.
19
LED3
O Displays battery level. This is an open drain pin.
20
LED4
O Displays battery level. This is an open drain pin.
21
SDA
I/O Master I2C Data pin (open drain). This controls Port control ICs when the Firmware is FW05.
Pull-up must be done externally when using it. Keep this pin OPEN otherwise.
22
SCK
I/O Master I2C Clock pin (open drain). This controls Port control ICs when the Firmware is FW05.
Pull-up must be done externally when using it. Keep this pin OPEN otherwise.
23 INT I Interrupt input from Port control IC when the Firmware is FW05. Pull-up must be done externally
when using it. Keep this pin OPEN otherwise.
24
SENV1+
I
Connect this pin to positive terminal of sense resistor to detect the current when the Firmware is
FW05.
25
SENV2+
I Connect this pin to positive terminal of sense resistor to detect Type-A (1) output current.
26
SENV3+
I Connect this pin to positive terminal of sense resistor to detect Type-A (2) output current.
27
SENV-
I Connect this pin to negative terminal of sense resistor to detect the current.
28
DVDD
- Digital power supply. Connect this pin to REGP through a schottky diode.
29 XT1 I Crystal resonator input.
30 XT2 O Crystal resonator output.
31
DVSS1
- Connects this pin to GND.
32
VBAT
I Connect this pin to positive pin of a battery.
33
SENB+
I Connect this pin to positive terminal of sense resistor to detect battery current.
34
SENB-
I Connect this pin to negative terminal of sense resistor to detect battery current.
35
TEST1
I Connect this pin to GND.
36
TEST2
I Keep this pin OPEN.
Power supply output for thermistor. This pin is set to “HIGH” when reading the temperature.
37
TSW
O Resistance value of TSW (for thermistor pull-up) must be the same value as the thermistor at
25C.
38
TSENSE
I Thermistor sense input. Use 100 resistor when connecting this pin to a thermistor.
39
COMPU
- Connect this pin to a capacitor through a resistor.
40
VCC_REG
- Power supply. Connect this pin to VCC.
41
REGP
O 4.7 V LDO output. (for internal use) Connect capacitor to this pin.
42
ISEN
I Senses buck-boost converter output current. The sense resistor must be placed between DC-
DC converter ground and the source of the MOSFET (Figure 1)
43
LDRV
I PWM output.
44
AVSSP
- Connect this pin to GND.
45
AVSSS
- Connect this pin to GND.
46
HDRV
O PWM output.
47
REGN
O VCC-4.7 V LDO output. (for internal use) Connect capacitor to this pin.
48
VCC
- Power supply.
49
TEST3
I Connect this pin to REGP.
50
GATE3
- Keep this pin open.
51
GATE2
O Control the gate of a FET for Type-A (1).
52
GATE1
O Control the gate of a FET for Micro-B (sink) or Type-C.
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6

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LC709501F pdf, datenblatt
LC709501F
Figure 7: The function of FW05 (In case USB1+/port is in Source)
Figure 8: The function of FW05 (In case USB1+/port is in Sink).
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