MAX17006BETP+ Maxim Integrated Products, MAX17006BETP+ Datasheet - Page 10

• Manufacturer Part Number: MAX17006BETP+
• Description: IC BATT CHARGER 1.2MHZ 20-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX17006BETP+

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 8 V ~ 26 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 1. Typical Operating Circuit
1.2MHz Low-Cost,
High-Performance Chargers
The MAX17005/MAX17006/MAX17015 include all the
functions necessary to charge Li+, NiMH, and NiCd
batteries. An all n-channel synchronous-rectified step-
down DC-DC converter is used to implement a preci-
sion constant-current, constant-voltage charger. The
charge current and input current-limit sense amplifiers
have low-input offset errors (250μV typ), allowing the
use of small-valued sense resistors.
10
ADAPTER
______________________________________________________________________________________
PWM SIGNAL
R
R
ACIN1
ACIN2
N4
22.6kΩ
R3
2MΩ
R9
BATT
R1
R2
LDO
N3
Detailed Description
10kΩ
200kΩ
R4
C2
0.1μF
C3
1μF
1μF
C6
GND
ACIN
ACOK
VCTL
ISET
IINP
V
AA
DCIN
Q1a
MAX17005
MAX17006
MAX17015
C7
0.1μF
CSSP
The MAX17005/MAX17006/MAX17015 use a new ther-
mally optimized high-frequency architecture. With this
new architecture, the switching frequency is adjusted
to control the power dissipation in the high-side
MOSFET. Benefits of the new architecture include:
reduced output capacitance and inductance, resulting in
smaller printed-circuit board (PCB) area and lower cost.
15mΩ
RS1
CSSN
PGND
BATT
CSIN
CSIP
LDO
DLO
BST
DHI
LX
CC
C
IN
0.01μF
3kΩ
4.7μF
R5
D1
C4
0.68μF
C5
C1
ADAPTER
N2
N1
ONLY FOR MAX17015
SYSTEM LOAD
200kΩ
C
C
L1 = 2μH
L1
R6
IN
OUT
RS2
10mΩ
R8
= 2 x 4.7μF
C
Q1b
= 4.7μF
OUT
R7
BATTERY