SI9731DQ-T1 Vishay, SI9731DQ-T1 Datasheet - Page 7

• Manufacturer Part Number: SI9731DQ-T1
• Description: IC, BATTERY CHARGER, TSSOP-16
• Manufacturer: Vishay
• Type: Charge Controllerr

Specifications of SI9731DQ-T1

• Output Voltage: 4.1V
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +85°C
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Battery Type: Li-Ion/NiCD/NiMH
• Output Current: 1.2A
• Operating Temp Range: -40C to 85C
• Package Type: TSSOP
• Mounting: Surface Mount
• Pin Count: 16
• Operating Temperature Classification: Industrial
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: TSSOP-16
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

BLOCK DIAGRAM AND TYPICAL APPLICATION CIRCUIT
Document Number: 71321
S09-2249-Rev. C, 26-Oct-09
CHARGERPOWER_ONIN
CHARGERPRESENTIN
TRICKLECHARGEEN
MAINCHARGEEN
V
CVMODE
CHARGER
ON/OFF
100 kΩ
2.2 μfd
C
IN
1
2
4
3
5
6
7
12.8 V
1 MΩ
2.6 V
Generator
+
–
–
+
+
–
Voltage
OVP
UVL
Latch
Charge
Trickle
2.6 V
3.4 V
5 V
12.8 V
Battery Min Voltage
Temp
Q2
Figure 1.
OK
Sensor
Temp
Circuit
Power
OK to Charge
(OTC)
Digital
Analog
E/A
Q1
+
N/C
–
+
–
+
8
Voltage
Fast
Charge
Ref
Battery Over
Voltage
Enable
–
+
3.4 V
5 V
10
N/C
1.3 V
RFB1
RFB2
RFB3
Q5
Q3
Q4
16
15
14
13
12
11
9
Vishay Siliconix
V
BAT+
CHARGERPRESENT
CHARGERPOWER_ON
2.2 μfd
4.1 V_TAP
GND
V
56 Ω
0.1 μfd
Trickle_V
C
REF
OUT
www.vishay.com
Si9731
BAT
B
a
e
y
V
t
t
r
BAT
7