3. TECHNICAL BRIEF
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Cradle Charge Current
The cradle charge current is enabled by the EN pin only, the USBON pin has no control on the cradle
charge current. The cradle charge current is programmed with the external resistor connected
between the ICDL pin and the GND pin. The current can be calculated with one of the equations given
in the ICDL pin description. Two equations are used for the cradle current calculation, each
corresponds to a different range of currents. The typical rDS(ON) of the P-channel MOSFET for the
CRDL input is 600mΩ at room temperature. When the head room between the input and output
voltages is small, the actual charge current, similar to the USB case, could be limited by the rDS(ON).
On the other hand, if the head room between the input and output voltages is large, the charge current
may be limited by the thermal foldback threshold.
Floating Charge Voltage
The floating voltage during the constant voltage phase is 4.2V. The floating voltage has an 1%
accuracy over the ambient temperature range of -40˚C to 70˚C.
Figure 3-17. BLOCKDIAGRAM
Summary of Contents for M6100
Page 1: ...Date February 2006 Issue 1 0 Service Manual Model M6100 Service Manual M6100 ...
Page 3: ... 4 ...
Page 15: ...3 TECHNICAL BRIEF 16 Figure 3 1 SKY74400 FUNCTIONAL BLOCK DIAGRAM ...
Page 40: ...3 TECHNICAL BRIEF 41 3 7 CAMERA IC AIT813 U701 Figure 3 18 AIT813 APPLICATION BLOCKDIAGRAM ...
Page 42: ...3 TECHNICAL BRIEF 43 3 8 MIDI IC YMU787 U708 Figure 3 20 YMU787 BLOCKDIAGRAM ...
Page 63: ...4 2 TX Trouble 4 TROUBLE SHOOTING 64 SKY74400 FEM 13Mhz OSCILLATOR TEST POINT Figure 4 2 ...
Page 98: ...4 TROUBLE SHOOTING 99 4 16 Camera and Flash Trouble Camera Module CN802 U704 U705 Figure 4 17 ...
Page 109: ... 110 ...
Page 119: ... 120 8 PCB LAYOUT ...
Page 120: ... 121 8 PCB LAYOUT ...
Page 121: ... 122 8 PCB LAYOUT ...
Page 122: ... 123 8 PCB LAYOUT ...
Page 123: ... 124 ...
Page 131: ...10 STAND ALONE TEST 132 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 137: ... 138 ...
Page 159: ...Note ...
Page 160: ...Note ...