LTC2952 Linear Technology, LTC2952 Datasheet - Page 12

• Manufacturer Part Number: LTC2952
• Description: Pushbutton PowerPath Controller
• Manufacturer: Linear Technology

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BLOCK DIAGRAM
LTC2952
12
OFFT
WDE
KILL
ONT
RST
VM
G2
PB
SECONDARY SUPPLY
V2
IDEAL DIODE DRIVER 2
GATE
0.5V
V
CC
0.775V
10μA
0.5V
VOLTAGE CLAMP
LINEAR GATE
PUSH-BUTTON
DRIVER AND
+
–
OSCILLATOR
–
–
+
+
EDGE DETECTOR
THREE-STATE/
CP1
PUSHBUTTON
DETECT
CP4
CP6
INTERNAL
ENABLE
V
IN
CONTROLLER
–
ANALOG
A2
FILTER
200μS
VS
+
1.6s WATCHDOG TIMER
V2
V
TO LOAD
CC
200ms RST DELAY/
LDO/BAND GAP
VS
VS
LOGIC
0.5V
REF
V1
0.775V
CONTROLLER
–
ANALOG
VS
A1
INTERNAL
ENABLE
+
V
IN
CP5
CP3
VOLTAGE CLAMP
ON/OFF
IDEAL DIODE DRIVER 1
LINEAR GATE
DRIVER AND
CP2
–
+
–
+
PRIMARY SUPPLY
–
+
0.5V
0.5V
MONITORS
V1
GATE
STAT
V
0.5V
CC
3μA
2952 BD
G1
G1STAT
M2
M1
GND
EN
INT
PFI
PFO
2952fa