SC802IMLTRT Semtech, SC802IMLTRT Datasheet - Page 7

• Manufacturer Part Number: SC802IMLTRT
• Description: IC, BATTERY CHARGER, 1A, MLPQ-16
• Manufacturer: Semtech

Specifications of SC802IMLTRT

• Battery Type: Li-Ion, Li-Polymer
• Input Voltage: 14V
• Battery Charge Voltage: 4.2V
• Charge Current Max: 1A
• Battery Ic Case Style: MLPQ
• No. Of Pins: 16
• No. Of Series Cells: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Notes:
(1) VCC1 and VCC2 must be connected. VCC1 and VCC2 will be referred to collectively as VCC. All references to V
(2) VOUT1 and VOUT2 must be connected. VOUT1 and VOUT2 will be referred to collectively as VOUT. All references to V
Pin Descriptions
Pin #
node voltage and total current of VCC1 and VCC2.
common node voltage and total current of VOUT1 and VOUT2.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
T
Thermal Pad
Pin Name
REFGND
EN_NTC
VPRGM
CHRGB
VOUT1
VOUT2
IPRGM
ITERM
RTIME
BSEN
VCC1
VCC2
GND
BIPB
AFC
CPB
Pin Function
Battery voltage sense pin — Connect to battery terminal to Kelvin sense battery voltage, to a
resistor divider network for adjustable output voltage, or to VOUT otherwise. Do not leave this pin
fl oating.
Selectable voltage program pin — Logic low = 4.1V; Logic high = 4.2V; Resistor = adjustable.
Charger current program pin in fast-charge mode — Requires a resistor to ground to program
fast-charge current.
Selection for current termination and pre-charge current — Requires a resistor to ground to pro-
gram pre-charge and termination current.
Reference ground — Allows Kelvin connection to battery negative terminal.
Ground
Combined device enable/disable and NTC input pin — Logic high enables device; logic low dis-
ables device. Analog voltages between 0.3×V
Battery In Place Bar (BIPB) — selects Charge/LDO mode. BIPB = Low selects charge mode.
BIPB = High selects LDO mode which disables Pre-Charge and timer functions
Analog fast-charge setting — Connect to DAC for analog control of fast-charge current value.
Connect to VCC to disable AFC. Do not leave open.
Open drain charger status pin — The output is active low when the charger is on and I
The CHRGB output switches to high impedance when I
Open Drain Charger present indicator — The output is active low when the V
This pin can sink 10mA.
Programmable timer input pin — Connect to VCC to select the internal time-out of 3hrs. Connect
an external resistor to ground to program the timeout period. Connect to ground to disable the
timer.
Supply pin — Connect to adaptor power and to VCC2.
Supply pin — Connect to adaptor power and to VCC1.
Charger output — Connect to battery and to VOUT2.
Charger output — Connect to battery and to VOUT1.
Pad is for heatsinking purposes —
pad to ground plane using multiple vias.
© 2008 Semtech Corporation
The thermal pad is
VCC
and 0.75×V
(2)
(2)
not connected internally. Connect exposed
VOUT
(1)
(1)
< I
VCC
TERM
enable the NTC function.
. This pin can sink 10mA.
SC802/SC802A
VCC
and I
VCC
VOUT
VCC
exceeds VT
refer to the common
and I
VOUT
VOUT
refer to the
> I
UVLOR
TERM
.
.
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