Product Info

VTech proprietary and confidential
VTech Communications LTD.
R&D Department
The document is VTech’s proprietary information, Please do not disclose to third party without VTech’s consent
Ref. No.: 20191009 Version: 01 Date: 09 Oct, 2019 Page 27 of 33
10 Electrical characteristic
10.1 Absolute maximum rating
Rating
Min
Max
Unit
Storage temperature
-40
105
℃
Supply voltage
5 V (USB VBUS)
VCHG
-0.40
6.50
V
3.3V
VDD_USB
-0.40
3.60
V
Battery
LED[2:0]
-0.40
4.40
V
SMP_VBAT
-0.40
4.40
V
VBAT_SENSE
-0.40
4.40
V
VREGENABLE
-0.40
4.40
V
PIO
PIO
-0.40
3.60
V
NOTE Voltage must not exceed 3.6 V on any I/O.
10.2 Recommended operating condition
Rating
Min
Typ
Max
Unit
Operating temperature range
-40
20
85
℃
5 V (USB VBUS)
VCHG, 4.20 V float setting
4.75 / 3.10
5.00
6.50
V
VCHG, 4.35 V float setting
4.90 / 3.10
5.00
6.50
V
3.3 V
VDD_USB
3.10
3.30
3.60
V
Battery
LED[2:0]
–
3.70
4.40
V
SMP_VBAT
2.50
3.70
4.40
V
VBAT_SENSE
0
3.70
4.40
V
VREGENABLE
0
3.70
4.40
V
PIO
PIO
1.70
1.80
3.60
V