Datasheet

Analog Integrated Circuit Device Data
9 Freescale Semiconductor
MC34708
Pin Connections
B10 CHRGLEDG I
Green LED driver
A3 GNDACHRG GND
Analog ground
A9, B9, C9,
D9
GNDCHRG GND
Ground
C4
NTCREF NC
Charger Not supported.
No Connect
B4 BPTHERM I
Connect to Ground
IC Core
K3 VCORE O
Regulated supply for the IC analog core circuitry
J3 VCOREDIG O
Regulated supply for the IC digital core circuitry
H4 VALWAYS O
Always on supply for internal core circuitry
N1 VCOREREF O
Main bandgap reference
J4 VDDLP O
VDDLP reference
L2 GNDCORE GND
Ground for the IC core circuitry
M2 GNDREF GND
Ground reference for the IC core circuitry
Switching Regulators
N11, N12,
P12, R12
SW1IN I
SW1 input
P11, R11 SW1ALX O
SW1A switch node connection
M10 SW1FB I
SW1 feedback
P10, R10 GNDSW1A GND
Ground for SW1A
L9 SW1VSSSNS GND
SW1 sense
M11 SW1PWGD O
Powergood signal for SW1
P13, R13 SW1BLX O
SW1B switch node connection
P14, R14 GNDSW1B GND
Ground for SW1B
L10 SW1CFG I
SW1A/B mode configuration
E13, E14,
E15
SW2IN I
SW2 input
D13, D14,
D15
SW2LX O
SW2 switch node connection
E12 SW2FB I
SW2 feedback
C13, C14,
C15
GNDSW2 GND
Ground for SW2
G10 SW2PWGD O
Powergood signal for SW2
H14, H15 SW3IN I
SW3 input
G14, G15 SW3LX O
SW3 switch node connection
G11 SW3FB I
SW3 feedback
F14, F15 GNDSW3 GND
Ground for SW3
F11 GNDREF2 GND
Ground reference for switching regulators
R3 SW4AIN I
SW4A input
Table 3. MC34708 Pin Definitions (continued)
Pin Number Pin Name
Pin
Function
Definition