Intermec 073300-001 User Manual
Chapter 4 — Theory of Operation
Power Supplies and Capacities
Load
VDC
Capacity
Regulator
CPU core supply
1.30V .5A
U45 Buck switcher from 3.3 VDC
VCCN and VCCkp
3.3V
.2A
System 3.3V (U39 from main battery, or U44 from supercap)
PLL_VCC
1.3V
.03A
Filtered CPU core supply
Core logic, memory IO,
and ATT_VCC
and ATT_VCC
3.3V
.1A
System 3.3V (U39 from main battery, or U44 from supercap)
Memory core
3.3V
.4A
System 3.3V (U39 from main battery, or U44 from supercap)
SD slot
3.3V
1.0A
Switched through FET Q10 from System 3.3V
PCI slot
3.3V
1.0A
Switched through U12 from System 3.3V
3.3V
.2A
Switched through U12 from System 3.3V
Scanning subsystem
5V
.25A
Switched through U13 from System 5V
Bluetooth
3.3V
.15A
Switched through Q9 from System 3.3V
LCD display
3.3V
.015A
Bias supply U37, derived from 3.3V supply
Backlight
3.3V .045A
Color: U48, derived from 3.3V supply
Mono: EL backlight drive built into LCD module
Mono: EL backlight drive built into LCD module
Audio
3.3V
.3A
Switched LDO from Vbatt_wall
Beeper/Audio amperes
5V
.2A
System 5V
Main Battery
The CK30 battery pack uses two Li-Ion 18650 cells with a capacity of
2200mAh. The cells are arranged in series for a nominal voltage of 7.23
VDC and charging voltage of 8.4V.
2200mAh. The cells are arranged in series for a nominal voltage of 7.23
VDC and charging voltage of 8.4V.
(I-Charge) Pin 4
Pin 5 (Ground)
Pin 6 (Ground)
(V to Unit) Pin 3
Pin 1 (+)
Pin 2 (-)
AB1 Battery Pin-Outs
Main Battery Charging
The CK30 itself contains no battery charging circuit. Instead, the charging
circuitry resides in the charging accessory–the AC1 4-bay charger, or the
AD1, AD2, or AC2 dock. The battery may be charged either by itself (in
an AC1) or while installed in a CK30 (in an AD1, AD2, or AC2 dock).
circuitry resides in the charging accessory–the AC1 4-bay charger, or the
AD1, AD2, or AC2 dock. The battery may be charged either by itself (in
an AC1) or while installed in a CK30 (in an AD1, AD2, or AC2 dock).
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CK30 Handheld Computer Service Manual