MAX781CBX 查看數據表（PDF） - Maxim Integrated
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MAX781CBX Datasheet PDF : 24 Pages
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PDA/Hand-Held Computer Power Controller
_________________________________________________Pin Description (continued)
25
3OUT
+3.3V Regulator Feedback Connection and Linear-Regulated + 3.3V Output
26
CS
+3.3V Regulator Current-Sense Input
27
SS
+3.3V Regulator Soft-Start Capacitor Connection
28
BATT
Battery Voltage Input
29
VCHG
Charger Voltage Input
30
UVLO
Undervoltage Lockout Threshold Input
31
REF
+2.5V Reference Output
32
AOUT
Analog Multiplexer Buffered Output
33
TEMP
Analog Multiplexer Input and Battery Sense Input
34
AUXIN
Analog Multiplexer Input
35
–S—H—D—N–
Shutdown-Mode Control Input
36
GD1
High-Side Gate-Driver Output
BATTERY
CHARGER
DC INPUT
D3
C10
R4
VCHG
SHDN
5OUT
C14
D1
R1
VHI
BATT
DCHG
M3
DHI
C1
L1
D2 BATTERY
CHARGER
SECTION
BST
MAX781
LX
REF
R8
SYNC
TEMP
COMP
T
C3
C2
CSBAT
DLO
PGND
CS
3OUT
AGND
SPI
COMPATIBLE
SERIAL
INTERFACE
CE
SCLK
DIN
DOUT
INT
FAST
AUXIN
AOUT
UVLO
VPPA
VPPB
GD1
GD5
SS
C5
D7
M1
C7
M2
D6
T1
D5
C8
GATE DRIVERS
FOR POWER
SWITCHING
+5V LOW
CURRENT OUTPUT
C12
+14V OUTPUT
C11
+3.3V
R7
OUTPUT
C6
PCMCIA 2.0
CARD SLOT
VPPs
C9
Figure 1. Typical Operating Circuit
8 _______________________________________________________________________________________
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