NCV8881PWR2G ON Semiconductor, NCV8881PWR2G Datasheet - Page 19

• Manufacturer Part Number: NCV8881PWR2G
• Description: IC SMPS WITH WATCHDOG 16SOIC
• Manufacturer: ON Semiconductor
• Series: -r

Specifications of NCV8881PWR2G

• Topology: Step-Down (Buck) (1), Linear (LDO) (2)
• Function: Automotive
• Number Of Outputs: 3
• Frequency - Switching: 170kHz
• Voltage/current - Output 1: 3.3 V ~ 8 V, 1.5A
• Voltage/current - Output 2: 5V, 100mA
• Voltage/current - Output 3: 8.5V, 40mA
• W/led Driver: No
• W/supervisor: No
• W/sequencer: No
• Voltage - Supply: 5 V ~ 19 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.295", 7.50mm Width) Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1
UNLATCH
ENABLE
2
Temp <Shutdown
VIN < 19V &
3
LDOS, SMPS OFF
LDOMON ACTIVE
in regulation
5P0 or 8P5
RESB LOW
regulation
SS Timer Expired
4
SMPS in
RESB LOW
SMPS OFF
Temp <Shutdown
LDOS ON,
Temp > Shutdown
LDOS, SMPS ON
VIN < 19V &
in regulation
5P0 or 8P5
BOOT DELAY
VIN > 19V or
Figure 41. State Diagram
LATCH
ENABLE
RESB HIGH
VFB > SC
Threshold
LDOS, SMPS ON
LDOS, SMPS ON
POR DELAY
http://onsemi.com
LDOS, SMPS ON
RESB LOW
INIT DELAYS
LDOS ON, SMPS OFF
RESB HIGH
RESB LOW
Temp > Shutdown
LDOMON ACTIVE
5
Enable = 0
INIT SS TIMER
VIN > 19V or
RESB LOW
LDOS ON, SMPS OFF
19
SS TIMER GOING
LDOS, SMPS ON
Temp <Shutdown
LDOS, SMPS OFF
INIT SS TIMER
RESB LOW
VIN < 19V &
RESB LOW
RESB LOW
Invalid
RESB LOW
LDOS OFF,
SMPS OFF
WDI
SS Timer Expired
SMPS out of
regulation
Enable = 0 &
Enable = 1
Enable = 0
VFB < SC
Threshold
Temp > Shutdown
Enable = 0
VIN > 19V or
LDOS, SMPS OFF
LDOMON OFF
RESB LOW
VIN > Vstrt
UNLATCH
ENABLE
VIN < Vstp
POWER
RESET
ON