User's Manual

Page 29
BitaTek Co., Ltd. Copyright protected. All rights reserved.
NO. 115 Wugong 3rd Rd., Tel [phone]
Wugu Dist., New Taipei City 248, Taiwan (R.O.C.) Fax[phone]
Battery charger:
The FREY M1 features a fully programmable switch-mode battery charger, input power and
output power controller for terminal devices. The device is designed to be used in
conjunction with systems using single-cell Li-ion and Li-polymer battery packs.
Parameter
Conditions
Min
Typ
Max
Units
Peak switching current
USB_IN = 9.0 V
-
4
-
A
Maximum DC output
current
USB_IN = 9.0 V
-
3
-
A
Switching frequency
0.95
1.0
1.05
MHz
OTG output voltage
4.85
5.00
5.15
V
Charger-specific digital I/O characteristics
High-level input voltage
(VIH)
All charger digital
interface pads except
CHG_EN
1.5
-
-
V
Low-level input voltage
(VIL)
-
-
0.5
V
CHG_EN high-level input
voltage (VIH)
1.3
-
-
V
CHG_EN low-level input
voltage (VIL)
-
-
0.3
V
3.5.2. Output power specification
Output
power
Circuit
type
Default
voltage (V)
Specified
voltage range
(V)6
Rated
current
(mA)
Expected use
VREG_L1
NMOS
LDO
1.000
1.000
200
RFICs
VREG_L4
PMOS
LDO
1.800
1.800
450
RFICs and
GPS eLNA
VREG_L5
PMOS
LDO
1.800
1.800
300
Most digital
I/Os, LPDDR
and eMMC