PT8A2707 Datasheet, PDF (4/26 Pages) Pericom Semiconductor Corporation – Charger Controller with Fuel-Guage & LCD/LED Display

PT8A2707-12/17-19
Charger Controller
with Fuel-Guage & LCD/LED Display
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Pin Assignment and Description
CHARGE 1
CORD 2
TEST 3
BP ⁴
L100 5
L80 6
L60 7
L40 8
L20 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
PT8A2707/17 pins assignment
CHARGE 1
CORD 2
TEST 3
BP ⁴
L100 5
L80 6
L60 7
L40 8
L20 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
PT8A2708/18 pins assignment
CHARGE 1
CORD 2
TEST 3
BP ⁴
L100 5
L80 6
L60 7
L40 8
L20 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
PT8A2709/19 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
Table 1: PT8A2707-2709 and PT8A2717-2719 LCD Pattern Pin Description
Name
Descriptions
CHARGE PWM DC/DC controller output for constant current regulation
CORD
External DC supply existence detection
TEST
Quick test mode
BP
BP for LCD back plane driver
L100
Fuel gauge output (Remaining 100% capacity, full charge indication)
L80
Fuel gauge output (Remaining 80% capacity)
L60
Fuel gauge output (Remaining 60% capacity)
L40
Fuel gauge output (Remaining 40% capacity)
L20
Fuel gauge output (Remaining 20% capacity)
BLI
Battery-low output (Remaining <10% capacity)
GND
Ground
MOTOR Motor driver control
SLIDE
Slide switch (PT8A2707/17) input to control motor running
DSTACT Tact switch (PT8A2708/18) input to control motor running with dual speeds
TACT
Tact switch (PT8A2709/19) input to control motor running
VB
Charging battery voltage sense input
VBLOW Low-battery voltage sense input
VT
Temperature sensor (NTC) input
VEE
Regulated output voltage
TIMER Charging protection timer
VDD
Supply voltage
CC
Compensation capacitor for DC/DC converter
ISENCOM Current sense reference plane
ISENFG Fuel gauge current sense input
ISENDC DC/DC controller current sense input
Pin Config
Current Limit
VMSTOP
Motor stop current limit value
select input
GND
0.6-1.0V
4.2x charging current
5x charging current
VDD
3x charging current
12-07-0005
PT0268-1 07/05/12
4