KIT33730EKEVBE Freescale Semiconductor, KIT33730EKEVBE Datasheet - Page 12

• Manufacturer Part Number: KIT33730EKEVBE
• Description: Power Management Modules & Development Tools SWITCH MODE PWR SUP
• Manufacturer: Freescale Semiconductor
• Type: Linear Regulators - Standardr

Specifications of KIT33730EKEVBE

• Product: Power Management Modules
• Silicon Manufacturer: Freescale
• Silicon Core Number: MC33730
• Kit Application Type: Power Management
• Application Sub Type: SMPS
• Kit Contents: Board, CD
• Rohs Compliant: Yes
• For Use With/related Products: MC33730
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PROGRAMMING PIN 2 (P2)
reference voltage. The output voltage of the VDD3, VDDL
and VKAM regulators can be programmed by the P1, P2, and
P3 pins (see
PROGRAMMING PIN 3 (P3)
reference voltages. The output voltage of the VDD3, VDDL
and VKAM regulators can be programmed by the P1, P2, and
P3 pins (see
PROTECTION FET DRIVE (PFD)
output drive for the gate of the external Reverse Battery
Protection N-channel FET.
BOOTSTRAP (BOOT)
provides the supply power for the switching regulator high-
side drive.
SLEW-RATE (SR)
of the switching regulator can be adjusted by connecting this
pin to switch node (SW pin, slow slew-rate selection), BOOT
pin (fast slew-rate selection), or it can be left open (medium
slew-rate selection).
SWITCH NODE (SW)
power switch (N-channel MOSFET source).
BATTERY VOLTAGE SUPPLY (VBAT)
protection is recommended).
12
33730
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
Programming Pin 2 for the VDD3, VDDL, and VKAM
Programming Pin 3 for the VDD3, VDDL, and VKAM
Reverse battery protection FET gate drive. This pin is an
This pin is connected to the bootstrap capacitor. It
Slew-rate Control of the switching regulator. The slew-rate
This pin is the source of the switching regulator internal
Voltage supply to the IC (external reverse battery
Table
Table
6).
6).
KEEP ALIVE SUPPLY (KA_VBAT)
battery protected. This input supplies power to the internal
supply and bias circuits that have to do with this VKAM and
other always-on supplies.
CHARGE PUMP (CP)
This charge pump provides the voltage needed to sufficiently
enhance the gates of the internal n-channel mosfets (VREF1,
VREF2, and VDDH) during the low battery condition.
KEEP ALIVE MEMORY (VKAM)
supplies power for the module Keep-Alive memory. This
output is always on, if the voltage at the KA_VBAT pin is
above 4.5 V.
VDD3
of VDD3 regulator external NPN pass transitory is connected
to this pin.
Standby regulator (see
VDD3 LINEAR REGULATOR BASE DRIVE
(VDD3_B)
regulator without the external pass transistor.This output
supplies current into the base of the regulator external pass
NPN transistor.
GROUND (GND)
VOLTAGE IGNITION (VIGN)
through an ignition switch. This pin is reverse battery
protected.
This pin is the keep alive supply input. This input is reverse
External reservoir capacitor of the internal charge pump.
Keep Alive Memory (standby) supply output. This output
This is a VDD3 regulator output feedback pin.The emitter
This pin can programmed to be the output of the VDD3
This pin can be used also as an additional standby
This pin is the ground pin of the integrated circuit.
This pin is the turn-on control input that is controlled
LINEAR REGULATOR (VDD3)
Analog Integrated Circuit Device Data
Table
6).
Freescale Semiconductor