Datasheet
14Maxim Integrated
MAX14920/MAX14921
High-Accuracy 12-/16-Cell Measurement AFEs
Pin Description (continued)
PIN
NAME FUNCTION
MAX14920
(64 TQFP-EP)
MAX14921
(80 TQFP)
— 18 CB16
Sampling Capacitor Connection 16 Low Terminal. CB16 internally connects to CV15
when SAMPL is logic-high. Connect a 1FF capacitor between CT16 and CB16.
Leave CB16 unconnected if not used.
— 19 CV15
Cell Voltage Input 15. Connect CV15 to cell anode/cathode. Connect CV15 to the
highest voltage of the battery cell stack if not used.
— 20 BA15
Cell-Balancing Gate Driver Output 15. Connect BA15 to the gate of the external
n-channel FET. Leave BA15 unconnected if not used.
— 21 CT15
Sampling Capacitor Connection 15 High Terminal. CT15 internally connects to
CV15 when SAMPL is logic-high. Connect a 1FF capacitor between CT15 and
CB15. Leave CT15 unconnected if not used.
— 22 CB15
Sampling Capacitor Connection 15 Low Terminal. CB15 internally connects to CV14
when SAMPL is logic-high. Connect a 1FF capacitor between CT15 and CB15.
Leave CB15 unconnected if not used.
— 23 CV14
Cell Voltage Input 14. Connect CV14 to cell anode/cathode. Connect CV14 to the
highest voltage of the battery cell stack if not used.
— 24 BA14
Cell-Balancing Gate Driver Output 14. Connect BA14 to the gate of the external
n-channel FET. Leave BA14 unconnected if not used.
— 25 CT14
Sampling Capacitor Connection 14 High Terminal. CT14 internally connects to
CV14 when SAMPL is logic-high. Connect a 1FF capacitor between CT14 and
CB14. Leave CT14 unconnected if not used.
— 26 CB14
Sampling Capacitor Connection 14 Low Terminal. CB14 internally connects to CV13
when SAMPL is logic-high. Connect a 1FF capacitor between CT14 and CB14.
Leave CB14 unconnected if not used.
— 27 CV13
Cell Voltage Input 13. Connect CV13 to cell anode/cathode. Connect CV13 to the
highest voltage of the battery cell stack if not used.
— 28 BA13
Cell-Balancing Gate Driver Output 13. Connect BA13 to the gate of the external
n-channel FET. Leave BA13 unconnected if not used.
— 29 CT13
Sampling Capacitor Connection 13 High Terminal. CT13 internally connects to
CV13 when SAMPL is logic-high. Connect a 1FF capacitor between CT13 and
CB13. Leave CT13 unconnected if not used.
— 30 CB13
Sampling Capacitor Connection 13 Low Terminal. CB13 internally connects to CV12
when SAMPL is logic-high. Connect a 1FF capacitor between CT13 and CB13.
Leave CB13 unconnected if not used.
— — EP Exposed Pad (MAX14920 Only). Connect EP to AGND.