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2-72 Service Guide
2.8 Ambit T62.036.C DC-DC Converter
This T62.036.C DC-DC converter supplies multiple DC(5V, 3,3V, 12V) output to system, and also
supplies the battery charge current (0~3.5A). The total inputs from the notebook would be limited
by the total output of 65 watts maximum.
2.8.1 Pin Diagram
2 - VDCF
4 - VDCF
6 - GND
8 - DCIN
10 - DCIN
12 - CHARGON
14 - CHARGSP
16 - GND
18 - CHARGOUT
20 - CHARGOUT
CN1
VDCF - 1
VDCF - 3
GND - 5
DCIN - 7
DCIN - 9
CHARGCL - 11
CHARGFB - 13
GND - 15
CHARGOUT - 17
CHARGOUT - 19
2 - P12VR
4 - GND
6 - P3VR
8 - P3VR
10 - GND
12 - P3VRON
14 - P12VRON
16 - GND
18 - P5VRON
20 - P5VRON
CN2
P12VR - 1
GND - 3
P3VR - 5
P3VR - 7
GND - 9
BMCVCC - 11
BMCVCC - 13
GND - 15
P5VRON - 17
P5VRON - 19
T62.036.C
Figure 2-11 T62.036.C Pin Diagram
2.8.2 Pin Descriptions
Table 2-8 T62.036.C Pin Descriptions
Pin Name Pin Type Pin No. Description
CN1 signals
VDCF I 1, 2, 3, 4 18VDC input from battery.
DCIN I 7, 8, 9,
10
7~19VDC input from AC adapter.
CHARGCL I 11 Enables Charger output. This input is driven by an open drain
signal to set the charging current limit to a high (3 .5A max.) or
low (2A). The lower limit is set when the signal is low (switch on).
The system will generally set this signal low when the battery has
been discharged to a low level. The battery current sensor is built
into the charger circuitry. The resistance of the drain switch is
less than 1K
Ω
.
Note, this signal sets the limit value of the charging current. The
CHARGFB and CHARGSP signals may restrict the charging
current to a lower level.
CHARGON I 12 This is a logic level signal, active high to enable the adapter
current output. This signal allows the system board to turn off the
charger output whenever the battery pack reports unsafe
conditions such as over temperature, error or no communication.
It may be used in response to any other detectable unsafe
system conditions
±
1uA maximum loading.
CHARGFB I 13 This signal is provided by a current sensor in the system to
indicate the current drawn from the AC adapter or other power