bq25505
www.ti.com
SLUSBJ3B –AUGUST 2013–REVISED JANUARY 2014
VBAT_OV = 4.18V, VBAT_OK = 3.5 V, VBAT_OK_HYST = 3.7 V, MPPT (VOC) = 50%
L1 = 22 µH, CIN = CSTOR = 4.7 µF, CBYP=0.1 µF, CREF = 10 nF
ROK1 = 4.22 MΩ, ROK2 = 8.06 MΩ, ROK3 = 0.698 MΩ, ROV1 = 6.04 MΩ, ROV2 = 7.87 MΩ
TPS62736
CSTOR
CBYP
+
SEC_BAT
System
Load
VSTOR
VBAT_SEC
VOC_SAMP
LBOOST
L1
VBAT_PRI
Ideal Diode OR
VREF_SAMP
Boost
Controller
CIN
VBAT_OK
TEG
CREF
VB_PRI_ON
VSS
MPPT
VB_SEC_ON
VIN_DC
Cold Start
Nano-Power
Management
VSTOR VBAT_SEC
Host
GPIO1
GPIO2
EN
VBAT_OK
bq25505
ROV2
ROV1
ROK3
ROK2
ROK1
Figure 3. Typical TEG Application Circuit without a Primary Battery
Copyright © 2013–2014, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Links :bq25505
TI [ TEXAS INSTRUMENTS ]
