LTC2960

13

2960f

TYPICAL APPLICATIONS

Figure 10. Battery Disconnect to Protect Against Deep Discharge

Figure 9. Configurable Regulator UVLO and Supervisor

Figure 11. Automotive Supervisor

LTC2960-1

LT3991

GND

EN

RT

GND

MR

ADJ

RST

OUT

R2

6.04M

Li-Ion

4.2V

Li-Ion

4.2V

6V TO 8.4V

3.3V

C1

0.1μF

25V

R1

402k

10k

RESET

R6

1M

R4

2.26M

R3

402k

R5

10M

2960 F09

UVLO FALLING THRESHOLD = 6.410V

RESET FALLING THRESHOLD = 2.649V

*OPTIONAL RESISTOR FOR ADDED ESD PROTECTION

+

+

C2

47μF

16V

NOT ALL LT3991 COMPONENTS SHOWN

BUCK CONVERTER

LTC2960-2

RT

GND

MR

ADJ

RST

OUT

R2

5.6M*

Li-Ion

4.2V

Li-Ion

4.2V

6V TO 8.4V

M1

Si4435

M2

Si4435

C1

0.1μF

25V

R1

402k*

LOW BATTERY

R5

10M

R4

6.04M*

R3

402k*

R6

100k

R7

1M

1N5245

15V

2960 F10

ADJ FALLING THRESHOLD = 6.410V

+

+

R8

10k

*VISHAY-DALE CRCW SERIES 0603 1 %

LTC2960-3

GND

MR

OUT

ADJ

RST

R2

825k

R7

1M

4V TO 27V

12V

VEHICLE BATTERY

IRLR2908

3.3V

C1

1μF

50V

R1

80.6k

UV

OV

R6

6.04M

R5

1M

R8

102k

R7

4.99k

R4

1.78M

R3

1M

2960 F11

C2

22μF

25V

ADJ FALLING THRESHOLD = 2.816V

LT3991

BUCK CONVERTER

GND

FB

EN/SS

LT4356

GND

GATE OUT

FLT

FB

NOT ALL LT3991 COMPONENTS SHOWN