PT8A2707 Datasheet, PDF (5/26 Pages) Pericom Semiconductor Corporation – Charger Controller with Fuel-Guage & LCD/LED Display

PT8A2707-12/17-19
Charger Controller
with Fuel-Guage & LCD/LED Display
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CHARGE 1
CORD 2
TEST 3
L100 ⁴
L80 5
L60 6
L40 7
L20 ⁸
NA 9
BLI 10
GND 11
MOTOR 12
24 VMSTOP
23 ISENDC
22 ISENFG
21 ISENCOM
20 CC
19 VDD
18 TIMER
17 VEE
16 _VT
15 VBLOW
14 VB
13 SLIDE
PT8A2710 pins assignment
CHARGE 1
CORD 2
TEST 3
L100 ⁴
L80 5
L60 6
L40 7
L20 ⁸
LTURBO 9
BLI 10
GND 11
MOTOR 12
24 VMSTOP
23 ISENDC
22 ISENFG
21 ISENCOM
20 CC
19 VDD
18 TIMER
17 VEE
16 _VT
15 VBLOW
14 VB
13 DSTACT
PT8A2711 pins assignment
CHARGE 1
CORD 2
TEST 3
L100 ⁴
L80 5
L60 6
L40 7
L20 ⁸
NA 9
BLI 10
GND 11
MOTOR 12
24 VMSTOP
23 ISENDC
22 ISENFG
21 ISENCOM
20 CC
19 VDD
18 TIMER
17 VEE
16 _VT
15 VBLOW
14 VB
13 TACT
PT8A2712 pins assignment
PIN
I/O
1
O
2
I
3
I
4
O
5
O
6
O
7
O
8
O
9
O
10
O
11
-
12
I/O
13
I
14
I
15
I
16
I
17
O
18
O
19
-
20
I/O
21
I
22
I
23
I
24
I
Name
CHARGE
CORD
TEST
L100
L80
L60
L40
L20
NA
LTURBO
BLI
GND
MOTOR
SLIDE
DSTACT
TACT
VB
VBLOW
VT
VEE
TIMER
VDD
CC
ISENCOM
ISENFG
ISENDC
VMSTOP
Table 2: PT8A2710-2712 LED Pattern Pin Description
Descriptions
PWM DC/DC controller output for constant current regulation
External DC supply existence detection
Quick test mode
Fuel gauge output (Remaining 100% capacity, full charge indication)
Fuel gauge output (Remaining 80% capacity)
Fuel gauge output (Remaining 60% capacity)
Fuel gauge output (Remaining 40% capacity)
Fuel gauge output (Remaining 20% capacity)
NA for PT8A2710/12
Motor “Turbo-Mode” Indicator (PT8A2711)[Normal speed, OFF]
Battery-low output (Remaining <10% capacity)
Ground
Motor driver control
Slide switch (PT8A2710) input to control motor running
Tact switch (PT8A2711) input to control motor running with dual speeds
Tact switch (PT8A2712) input to control motor running
Charging battery voltage sense input
Low-battery voltage sense input
Temperature sensor (NTC) input
Regulated output voltage
Charging protection timer (1hr/1.5hrs/2.5hrs/4hrs)
Supply voltage
Compensation capacitor for DC/DC converter
Current sense reference plane
Fuel gauge current sense input
DC/DC controller current sense input
Pin Config
Current Limit
Motor stop current limit value GND
4.2x charging current
select input
0.6-1.0V
5x charging current
VDD
3x charging current
12-07-0005
PT0268-1 07/05/12
5